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Free tools

240 free marketing, SEO and developer tools.

Calculators, schema generators, audits, text and image tools. No sign-up, and most run entirely in your browser so your data never leaves your device.

Start with the SEO auditBuild an answer module

SEO and technical

Alt Text Generator (French and English)Write clear, accessible alt text in French or English. Describe the image, get short and detailed suggestions with length checks and a ready img tag.Alt Text Length CheckerCheck image alt text for length, filler phrases and descriptive detail so it works for screen readers and image search.Canonical Tag GeneratorBuild a clean canonical link tag and HTTP header to consolidate ranking signals on duplicate or near-duplicate pages.FAQ and Featured Snippet OptimizerFind the questions on any page, check if each answer is shaped for featured snippets and AI answers, and get ready-to-use FAQPage schema.Hreflang Tag GeneratorBuild and check hreflang tags or XML sitemap entries for multi-language and multi-region websites.Keyword Density CalculatorPaste your text and a target keyword to see its density, how often it appears and the words you use most.Meta Description GeneratorBuild a meta description from your topic, benefit and call to action, preview it as a Google result, and keep it under the 160 character cutoff.Meta Tags AnalyzerFetch a URL or paste its HTML to audit the title, meta description, canonical, viewport, robots, Open Graph, Twitter Card and schema tags.Meta Title and Description Length CheckerCheck your meta title and description by characters and pixel width, see a live Google preview, and catch truncation before you publish.NAP Citation Consistency CheckerPaste your business name, address and phone from each directory listing and spot the inconsistencies that weaken local SEO.Open Graph & Twitter Card GeneratorBuild complete Open Graph and Twitter Card meta tags for any page, with length checks and copy-ready code.Open Graph Preview TesterPreview how a page will look when shared on Facebook, LinkedIn, X, Slack or WhatsApp, and check your OG title, description and image.Open Graph Tag Generator for Facebook, LinkedIn and WhatsAppGenerate Open Graph and X card meta tags so your links show a proper title, description and image when shared, with a live preview and checks.Page Load Budget CalculatorAdd up the weight of your HTML, CSS, JavaScript, images and fonts, and see whether the page stays inside a sensible performance budget.Page Title Length CheckerCheck your title tag's character count and pixel width, and preview how it looks in Google results before it gets cut off.Robots Meta Tag GeneratorBuild a robots meta tag or X-Robots-Tag header that controls indexing, link following, snippets and image previews for a page.Robots.txt Builder for SEO and AI CrawlersBuild a valid robots.txt with presets, sitemap lines and one-click rules for AI crawlers like GPTBot and ClaudeBot, then test any URL against it.SEO Audit ToolRun a quick on-page SEO audit of any URL or pasted HTML: titles, meta tags, headings, images, links, structured data and indexability, with a score and fixes.SEO Meta Tag and Header ExtractorPull every meta tag, Open Graph and Twitter tag, heading and link tag from any page or pasted HTML, then copy or export it as JSON.SEO Traffic Forecasting CalculatorProject organic clicks, conversions and revenue from a keyword's search volume and target ranking, adjusted for AI Overviews and ads.UTM Cheatsheet & ValidatorCheck the UTM tags on any URL for missing parameters, typos, uppercase letters and spaces, with a quick reference for what each tag means.Voice Search Optimization ToolScore how ready a page is for voice assistants and AI answers: question headings, short direct answers, FAQ schema, readability, mobile basics and local signals.

Pro SEO tools

Crawl Budget Audit: HTML Size CheckerCheck every page in your sitemap against Google's 2 MB HTML fetch limit. Find oversized, blocked, redirected and broken pages, then export a CSV.GA4 Custom Dimension BuilderTurn a business concept into a clean GA4 custom dimension: parameter name, admin settings, dataLayer push code and the matching GTM variable.GA4 Event Name ValidatorCheck a GA4 event name and its parameters against Google's naming rules, reserved names and limits before you ship your tracking.Google Cache & Wayback CheckerEnter a URL to get one-click index checks, Wayback Machine snapshots and a live test for noindex, canonical and status code problems.HTML Sitemap GeneratorPaste a list of URLs and get a clean HTML sitemap, grouped by section, ready to paste into a page on your site.HTTP Header AnalyzerFetch a URL or paste raw response headers to audit status, caching, compression, security headers and SEO directives in one view.Is It Down? Site Status CheckerCheck whether a website is down for everyone or just you, with a live server test and one-click outage, DNS, SSL and speed checks.Mobile-Friendly TestLoad a URL or paste HTML to preview the page at common phone and tablet widths and check the viewport, zoom and text size basics.Page Size CheckerFetch a URL or paste its HTML to measure the raw HTML weight, see how much is inline script, CSS and images, and count external resources.Schema Validator (JSON-LD)Paste a JSON-LD block to check the JSON syntax, @context and @type, and the key properties each common schema type needs before you publish.SEO, AEO and GEO Page AuditAudit any page for search readiness with 27 transparent checks across classic SEO, answer engines and generative AI search, plus a plain fix for each.Spider Simulator (Bot's-Eye View)Fetch a page as Googlebot or paste its HTML to see what a crawler reads: title, meta tags, headings, visible text, links and image alt text.Website Links Count CheckerFetch a URL or paste its HTML to count every link, split internal from external, check nofollow, sponsored and UGC tags, and grade anchor text.XML Sitemap GeneratorPaste a list of URLs and get a valid sitemap.xml file, ready to upload and submit to Google Search Console and Bing Webmaster Tools.

Schema generators

Article Schema Markup Generator (JSON-LD)Create Article, BlogPosting or NewsArticle JSON-LD for any post. Fill in the form, check the warnings, then copy the code into your page.BlogPosting Schema GeneratorBuild BlogPosting JSON-LD for a blog post, with author, publisher and dates, ready to paste into your page or CMS.BreadcrumbList Schema GeneratorTurn your breadcrumb trail, or any page URL, into BreadcrumbList JSON-LD that shows search engines where a page sits on your site.Course Schema GeneratorBuild Course JSON-LD for online courses, training programs and certifications, ready to paste into your page.Event Schema Markup Generator (JSON-LD)Build Event JSON-LD for conferences, webinars, workshops and concerts, with in-person, online and hybrid locations, tickets and status updates.Event Schema Quick GeneratorA quick Event JSON-LD generator for the essentials: name, dates, venue or online link, and ticket price.FAQ Schema Markup GeneratorTurn your questions and answers into FAQPage JSON-LD and matching FAQ section HTML. Add them one by one or paste a whole list.Glossary Markup GeneratorTurn a list of terms and definitions into DefinedTermSet JSON-LD and clean glossary HTML, with anchor links for every term.HowTo Schema Markup Generator (JSON-LD)Turn a step-by-step guide into clean HowTo JSON-LD with steps, total time, supplies, tools and cost, checked as you type.JobPosting Schema GeneratorBuild JobPosting JSON-LD with salary, location and remote options so your openings can appear in Google's job search.Local Business Schema GeneratorCreate LocalBusiness JSON-LD with your address, map coordinates, opening hours and social profiles, checked against Google's required fields.Organization Schema Markup Generator (JSON-LD)Generate Organization JSON-LD with your logo, contact details, address, identifiers and social profiles so search engines know who you are.Person Schema GeneratorBuild Person JSON-LD for author bios, founder pages and team profiles to strengthen E-E-A-T signals.Press Release Schema GeneratorGenerate NewsArticle JSON-LD for a press release page so search engines and AI tools can read its headline, date, publisher and image.Product Schema Markup Generator (JSON-LD)Build Product JSON-LD with price, availability, ratings, shipping and returns for e-commerce pages, with checks for Google's required fields.Recipe Schema GeneratorBuild copy-paste Recipe JSON-LD for food blogs, with times, ingredients and steps, so recipes can earn rich results.Review Schema GeneratorBuild Review JSON-LD with a star rating for product, software, business and editorial reviews.Service Schema GeneratorBuild Service JSON-LD for agencies, consultants, contractors and other service businesses, including areas served and pricing.Sitelinks Searchbox and WebSite Schema GeneratorGenerate WebSite JSON-LD with your site name, alternate names and an internal search action, and test your search URL pattern before publishing.Video Schema Markup Generator (JSON-LD)Create VideoObject JSON-LD with thumbnail, upload date, duration, embed URL and key moments, checked against Google's required fields.VideoObject Schema GeneratorBuild VideoObject JSON-LD for YouTube embeds, self-hosted videos and product video pages, with the duration in ISO format.

Content and social

AIDA Copywriting BuilderTurn your product, audience, pain point and offer into a ready-to-edit AIDA copy block (Attention, Interest, Desire, Action) for pages, ads and emails.Content Marketing ROI CalculatorForecast first-year ROI on a blog or SEO content program from traffic, conversions, customer value and the paid media cost of the same traffic.Content Readability AnalyzerCheck any text or web page for Flesch reading ease, grade level, long sentences, passive voice, long words, heading structure and missing alt text.Flesch Reading Ease CalculatorPaste any English text to get its Flesch reading ease score, Flesch-Kincaid grade level, and the word, sentence and syllable counts behind them.Headline Analyzer (Free Tool)Score a blog, ad or email headline out of 100 based on word count, length, numbers, power words and a strong opening, with tips to improve it.PAS Copywriting BuilderBuild Problem, Agitate, Solution copy for ads, sales pages and cold outreach from five short inputs, then copy it with one click.Reading Time CalculatorPaste an article to estimate its reading time at slow, average and fast reading speeds, and get a ready-to-use minutes read label.ROI of Content Refresh CalculatorEstimate the extra traffic, revenue and 12-month ROI you could get by refreshing your older blog content.Slug Generator (URL-Friendly)Turn any title into a clean, lowercase, hyphenated URL slug, plus a short SEO version with stopwords removed.Social Media Image Size CheatsheetImage dimensions and aspect ratios for Instagram, LinkedIn, Facebook, TikTok, YouTube, Pinterest and X in one searchable reference.Tweet Thread BuilderPaste long text and get a thread split into 280-character posts with optional 1/n numbering. Works for X, Bluesky and Threads.Twitter / X Character CounterLive 280-character counter for X posts that counts links and emoji the way X does, with hashtag, mention and length checks.Video Script Length CalculatorEstimate how long your finished video will run from the script, at your own pace and at slow, standard and conversational speeds.Word Counter & Reading Time ToolCount words, characters, sentences and paragraphs as you type, with reading and speaking time estimates.Word Frequency AnalyzerPaste any text to see its most used words with counts and share, for content audits, customer feedback and SEO topic research.YouTube Thumbnail CTR EstimatorCheck your YouTube thumbnail against five proven signals and get a rough CTR range with tips for what to improve.YouTube Title OptimizerScore your YouTube title for length, numbers, hook words and other click factors, with quick tips to make it stronger.

Marketing calculators

Affiliate Marketing ROI CalculatorForecast affiliate program revenue, commissions and net contribution so you can set commission rates from margin math, not guesswork.Average Order Value CalculatorCalculate AOV for any period and see what a 10%, 20% or 30% lift in average order value would do to your revenue.Cart Abandonment Recovery CalculatorSee how much revenue sits in abandoned carts each month and what winning back even 5% of them would be worth.Conversion Rate CalculatorCalculate your conversion rate from any traffic source and see the revenue impact of a small improvement.Customer Acquisition Cost (CAC) CalculatorCalculate blended CAC across marketing, sales and content costs, then compare it with customer lifetime value to check your unit economics.Customer Feedback Survey BuilderGenerate a short, five-question customer feedback survey tailored to your product and audience, ready to copy into any survey tool.Customer Lifetime Value (CLV) CalculatorEstimate the gross profit an average customer brings in over their lifetime and the most you can spend to acquire one.Customer Retention Rate CalculatorCalculate your customer retention rate and churn, and see what improving retention by one point is worth in revenue.Engagement Rate Calculator (Social Media)Calculate engagement rate by followers and by reach for Instagram, LinkedIn, X, TikTok or Facebook, and compare it with typical platform ranges.Free Shipping Threshold CalculatorFind a free shipping threshold that lifts average order value without eating your margin, based on your AOV and shipping costs.Hashtag Generator (Free Tool)Generate a mix of topic, niche, brand and broad hashtags sized for Instagram, LinkedIn, X or TikTok, ready to copy into your next post.Instagram Caption Length CheckerCheck your Instagram caption against the 2,200 character and 30 hashtag limits, and preview the first 125 characters people see before tapping more.Lead Magnet Conversion CalculatorCalculate the conversion rate of any lead magnet and forecast monthly leads and cost per lead at your target traffic.LinkedIn Post Length OptimizerCheck your LinkedIn post against the 3,000 character limit and preview the first 200 characters that show before the see more link.Marketing Budget AllocatorEnter your yearly marketing budget, stage and business model to get a starting split across SEO, paid ads, content, email and more.Marketing ROI Calculator (Free)Calculate the profit-based return on your marketing spend, including gross profit, monthly profit and return per dollar spent.NPS CalculatorEnter your promoter, passive and detractor counts to compute your Net Promoter Score and see how it compares with typical ranges.Pinterest Description TesterTest a Pinterest pin description against the 500 character limit, see what shows in the first 50 characters, and check how often your keyword appears.Return Rate Impact CalculatorSee what product returns cost your store each year and how much profit you would recover by cutting the return rate by 5 points.Sales Funnel Drop-Off CalculatorEnter visitors, product views, carts, checkouts and purchases to see the drop-off at each stage and what your biggest leak costs.Social Media Content Calendar PlannerPlan a social media campaign by date, platform and content pillar, then download it as a spreadsheet for Excel or Google Sheets.Social Proof Lift CalculatorEstimate the extra revenue from adding testimonials, reviews or trust badges to a landing page, based on your traffic and conversion rate.Social Proof Notification GeneratorCreate small pop-up notifications that show real recent purchases, sign-ups or reviews, preview them, and copy a lightweight embed code for your site.Social Share Button BuilderGenerate lightweight share link HTML for X, LinkedIn, Facebook, WhatsApp and email. No scripts, no trackers, just copy and paste.Survey Question Builder & Bias CheckerCheck a survey question for leading words, double-barreled wording, jargon and length, then get a more neutral rewrite.User Persona BuilderFill in eight fields and get a clean, structured user persona in Markdown, ready to share with product, marketing and sales teams.UTM Link BuilderBuild clean, consistently tagged campaign URLs with utm_source, utm_medium and utm_campaign, ready to paste into emails, ads and social posts.Webinar ROI CalculatorForecast attendees, pipeline, closed revenue and ROI from a webinar before you commit budget, based on your registration and conversion rates.

Paid ads

Ad Copy A/B Variant GeneratorTurn your product, audience, benefit and pain point into six ad headline variants built on different persuasion frameworks.Ad Headline Length Checker (Multi-Platform)Paste a headline once and see if it fits the character limits of Google, Meta, LinkedIn, TikTok, X, YouTube, Pinterest and Reddit ads.Exact Match Keywords ConverterTurn a plain keyword list into exact match [brackets] or phrase match "quotes" for Google Ads and Microsoft Ads, cleaned and deduplicated.Facebook/Meta Ads CPM EstimatorForecast monthly impressions, clicks, conversions and ROAS from a Meta ad budget at any CPM and CTR.Google Ads and Bing Ads Keyword Match Type ConverterPaste a keyword list and convert it to broad, "phrase" or [exact] match, or to negatives, ready for Google Ads and Microsoft Advertising.Google Ads ROAS Calculator: Break-Even and Target ROASFind your current ROAS, the break-even ROAS your margins allow, and the target ROAS to enter in Google Ads to hit your profit goal.Influencer Marketing ROI CalculatorEnter the creator's fee, audience and your conversion numbers to see whether a sponsored post will pay off before you sign.LinkedIn Ads Cost Per Lead CalculatorForecast leads, opportunities, pipeline and closed revenue from a LinkedIn ad budget using your own B2B funnel rates.Paid Search Bid CalculatorWork out the highest CPC you can afford for any product from its order value, margin, conversion rate and target ROAS.TikTok Ad Performance CalculatorEstimate impressions, clicks, conversions, revenue and ROAS from a monthly TikTok ad budget.YouTube Ads CPM CalculatorForecast impressions, completed views, cost per view, conversions and ROAS from a YouTube ad budget.

Email and SMS

CAN-SPAM Email Footer GeneratorGenerate an email footer with the sender details, unsubscribe link and notice required by CAN-SPAM, Canada's CASL and the EU GDPR.Cold Email Personalization CheckerScore a cold email on personalization, length and a clear ask, and get quick tips to make it more likely to get a reply.DKIM DNS Lookup HelperBuild the DNS name for any DKIM selector, check the live record and validate key type, key strength and testing flags.DMARC Record BuilderBuild a correctly formatted DMARC TXT record for your domain, with policy, reporting and alignment options and rollout advice.Email List Growth ForecasterForecast your email list size over the next 12 months from site traffic, signup rate and monthly unsubscribe rate.Email Marketing ROI CalculatorForecast the monthly and annual revenue your email list should produce, plus revenue per subscriber and ROI on your program cost.Email Subject Emoji & Pre-Header CheckerPreview your from name, subject line and pre-header together, check their length and emoji use, and fix the inbox impression before you send.Email Subject Line Tester (Spam Words + Length)Score an email subject line on length, spam trigger words, all caps, punctuation and numbers, and check your preview text length too.Mailto Link GeneratorBuild pre-filled mailto links with subject, body, CC and BCC, plus ready-to-paste HTML for contact and support buttons.NPS Follow-up Message BuilderWrite a tailored follow-up email for each NPS group: a referral or review ask for promoters, a probe for passives and a recovery call for detractors.SMS Marketing ROI CalculatorForecast monthly revenue, message costs and ROI from SMS campaigns using your list size, click rate and order value.Spam Word CheckerPaste an email subject line or body copy to find spam trigger words, all-caps shouting and extra exclamation marks, with a 0 to 100 risk score.SPF Record Validator & BuilderCheck an SPF record for syntax errors, the 10 DNS lookup limit and a weak fail policy, or build a new SPF record from the email services you use.Welcome Email Series ROI CalculatorForecast monthly and annual revenue from a welcome email series, plus revenue per new subscriber and payback on the build cost.

SaaS metrics

Burn Rate & Runway CalculatorWork out gross burn, net burn and how many months of runway your cash covers, plus the month it would run out.CAC Payback Period CalculatorCalculate how many months it takes a new customer to pay back what you spent to acquire them, based on gross margin.Churn Rate CalculatorCalculate monthly customer churn, annualized churn, revenue churn and average customer lifespan for any subscription business.Cohort LTV CalculatorEstimate discounted customer lifetime value from revenue per customer, gross margin and monthly churn, and see a safe maximum CAC.LTV:CAC Ratio CalculatorCompare customer lifetime value with acquisition cost to see whether your growth is efficient, break-even or burning cash.Net Revenue Retention CalculatorCalculate net and gross revenue retention for a customer cohort from starting MRR, expansion, contraction and churn.SaaS Magic Number CalculatorMeasure sales efficiency with the SaaS Magic Number: net new ARR divided by last quarter's sales and marketing spend.SaaS MRR Growth CalculatorForecast your MRR and ARR run rate over the next 12 months from monthly new, expansion and churned MRR.Subscription Churn ForecasterForecast your subscriber base over 12 months from your churn rate, monthly signups and reactivations, and see where growth levels off.

Finance and pricing

Break-Even Analysis CalculatorFind how many units you need to sell each month to cover your costs, plus the sales needed to hit a profit target.CAGR CalculatorCalculate the compound annual growth rate between a starting and ending value over any number of years, with doubling time and a yearly path.Compound Interest CalculatorWork out the future value of savings or an investment with compound interest, monthly contributions and your choice of compounding frequency.Currency ConverterEstimate conversions between USD, CAD, EUR, GBP and JPY with rates you can edit. Good for pricing and budgets, not for settling payments.Discount CalculatorCalculate the final price and savings for any percent-off discount, and see how much it cuts your margin when you add the unit cost.Discount Impact on Margin CalculatorSee how much a discount cuts your profit per unit and how many more units you must sell just to earn the same gross profit.ESG Impact CalculatorEstimate your company's yearly carbon footprint by scope and get a simple environmental, social and governance self-assessment score.Freelance Project Pricing CalculatorBuild a defensible project quote from your hourly rate, estimated hours, a complexity premium and a profit margin.Gross Margin CalculatorA quick gross margin calculator: enter revenue and cost of goods sold to get gross profit, gross margin and markup.Hourly Rate CalculatorWork out the hourly rate you need as a freelancer or consultant to reach your take-home goal after taxes, expenses and unbillable time.Inventory Turnover CalculatorCompute your inventory turnover ratio and days of inventory on hand to see how fast stock turns into cash.IRR CalculatorFind the internal rate of return on a series of cash flows: the discount rate that brings net present value to zero.Loan CalculatorWork out the monthly payment, total interest and full payoff for any loan amount, rate and term, with a yearly amortization schedule.Markup CalculatorTurn a unit cost and markup percentage into a selling price, profit per unit and the matching gross margin.Net Present Value CalculatorCalculate the net present value of future cash flows at any discount rate, with a year-by-year breakdown, to judge whether a project is worth it.Operating Margin CalculatorCalculate operating margin from revenue and operating income and see whether your business model turns a profit at scale.Pricing Strategy CalculatorCompare cost-plus, value-based and competitor-anchored prices side by side and see a blended price for any product.Profit Margin CalculatorCalculate gross, operating and net margin from revenue, cost of goods sold, operating expenses, interest and taxes.Revenue per Employee CalculatorCalculate revenue per employee and compare it with common benchmarks for a quick read on how productive your organization is.ROE CalculatorCalculate return on equity from net income and average shareholder equity to see how well a company turns capital into profit.ROI CalculatorCalculate simple and annualized ROI for any investment, from marketing campaigns and business projects to personal finance.Sales Tax CalculatorAdd sales tax to a pre-tax price or pull the pre-tax price out of a tax-included total, with common Canadian rates built in.

Statistics and testing

7-Day Rolling Average CalculatorSmooth a noisy daily series into a 7-day rolling average so the real trend in your traffic, sales or spend shows through.A/B Test Significance CalculatorEnter visitors and conversions for two variants to get conversion rates, lift, confidence and a clear verdict on whether to ship.Month-over-Month Growth CalculatorCalculate month-over-month growth from this month and last month, with the absolute change and an annualized rate.Sample Size CalculatorFind how many visitors each A/B test variant needs from your baseline rate, minimum detectable effect, confidence and power.Standard Deviation CalculatorPaste a list of numbers to get the mean, variance, and sample and population standard deviation in one place.Year-over-Year Growth CalculatorCompare this year to the same period last year to get YoY growth, the absolute change and a quick verdict on the result.

AI and email setup

AI API Cost CalculatorEstimate per-call, monthly and yearly costs for GPT, Claude, Gemini and other LLM APIs from token counts and call volume.AI Image Prompt BuilderBuild structured image prompts for Midjourney, DALL-E, Stable Diffusion and Flux from a subject, style, lighting and framing.AI Marketing Opportunity AuditRate how your team spends time across nine marketing tasks and see where AI could free up the most hours, with your own assumptions and clear next steps.AI Prompt Template BuilderTurn a role, task, context, format and constraints into a clean, structured prompt for ChatGPT, Claude, Gemini or any LLM.Answer Module Generator (AEO, APON Formula)Write a 50 to 70 word answer block with the APON formula: Answer, Proof, Options, Next step. Get plain text, HTML and FAQ schema to paste.llms.txt GeneratorBuild a clean llms.txt file for your website in minutes. Import pages from your sitemap or list them by hand, then copy or download the file.Marketing AI Audit ToolRate 14 plain statements about how your team uses AI in marketing and get a transparent readiness score by area, plus clear next steps.PromptCraft: AI Prompt Builder for WorkBuild a clear, structured prompt for ChatGPT, Claude or Gemini in seconds. Pick your role, tone, format and length, then copy or open it.

PR and research

Journalist Outreach Email BuilderBuild a short, structured pitch email to a journalist with a clear angle, a news hook and a simple ask, ready to copy.Podcast Pitch BuilderWrite a guest pitch to a podcast host with a show-specific opener, a clear fit, 3 to 5 talking points, social proof and an easy ask.SocialPulse: Social Listening Search BuilderTurn a brand, keywords and competitors into ready-made social listening searches for Google, Reddit, X, LinkedIn, YouTube and news feeds.

Productivity

Business Name Quick-CheckRun quick checks on a business name idea: length, hyphens, numbers and pronounceability, plus shortcuts to domain, social and trademark searches.Calendar Event Link GeneratorCreate Add to Calendar links for Google, Office 365, Outlook.com and Yahoo, plus a downloadable .ics file for Apple Calendar.Date Difference CalculatorFind the exact time between two dates in years, months and days, plus total days, weeks and business days.Hours CalculatorCalculate hours between two times, add or subtract time, total a list of durations, and convert hours and minutes to decimal.Meeting Cost CalculatorSee what a recurring meeting really costs per meeting, per month and per year, based on attendees, hourly cost and frequency.Meeting ROI CalculatorEstimate the return on a recurring meeting by comparing what it costs in people hours with the value it creates each year.Multi-City Time Zone ConverterPick a time in one city and see the matching local time in 16 business cities, with working hours highlighted for meeting planning.Pomodoro TimerA simple in-browser pomodoro timer with adjustable focus and break lengths, a session counter and an optional chime. No install or sign-up.QR Code GeneratorMake a scannable QR code for a URL, text, email or phone number. Generated in your browser, with PNG and SVG downloads.Tire Size TranslatorDecode any metric tire size into plain English: width, sidewall height, overall diameter, load index and speed rating, plus a side-by-side size comparison.

Developer and encoders

Base64 Encoder / DecoderEncode text to Base64 or decode Base64 back to text, with full UTF-8 support and a URL-safe Base64Url mode.Binary TranslatorConvert text, including emoji and accented letters, to UTF-8 binary, or decode binary back to readable text.CSS Color ConverterConvert any CSS color between HEX, RGB and HSL with a live preview and contrast ratios against white and black text.CSV to JSON ConverterPaste CSV and get clean JSON or NDJSON instantly, with quote handling, delimiter detection and number and boolean detection.Hex ConverterConvert text to hex and back, hex to decimal and back, or a CSS hex color to RGB and HSL values, right in your browser.JSON Validator & FormatterPaste JSON to check the syntax, find the line with an error, then pretty-print or minify it. Runs in your browser.JWT Token DecoderDecode any JSON Web Token to read its header, payload and expiry in plain language, without sending the token anywhere.MD5 & SHA Hash GeneratorGenerate MD5, SHA-1, SHA-256, SHA-384 and SHA-512 hashes of any text instantly, right in your browser.URL Encoder / DecoderPercent-encode text so it is safe in query strings, paths and fragments, or decode an encoded URL back to readable text.Webhook Payload BuilderTurn a webhook URL and JSON payload into a ready-to-run cURL command or fetch snippet for testing Zapier, Make, n8n and custom integrations.Website Security CheckerCheck a site's HTTPS setup, security headers, cookie flags and mixed content, then get a grade and plain-language fixes for each issue.YAML to JSON ConverterPaste a YAML config file or snippet and convert it to clean JSON, or turn JSON back into YAML, right in your browser.

Image tools

Color Palette ExtractorUpload any image to pull out its dominant colors as HEX swatches and ready-to-paste CSS variables for your brand or design system.Favicon GeneratorUpload your logo to create favicons in 8 sizes, from 16 px to the 180 px Apple touch icon and 512 px app icon, plus the HTML tags.Image Color PickerUpload any image and click a spot to get the exact color of that pixel as HEX, RGB and HSL. Runs in your browser, no install needed.Image Compression EstimatorEstimate the file size of an image at JPG quality 60, 75, 85 and 95, plus WebP, to plan page weight and CDN transfer.Image CompressorCompress JPG, PNG and WebP images in your browser with adjustable quality. Nothing is uploaded, so your files never leave your device.Image CropperCrop any image to square, 4:5, 9:16, 16:9, 1.91:1 or a custom ratio in your browser, then drag the crop area to frame your subject.Image Format ConverterConvert images between JPG, PNG and WebP in your browser, with a background colour for transparent images and adjustable quality.Image ResizerResize JPG, PNG and WebP images in your browser to exact pixel dimensions, a percentage, or a maximum width or height.Open Graph Image SizerTurn any image into a 1200 × 630 Open Graph share image for Facebook, LinkedIn, X and Slack, with fit modes and a safe area guide.

Text tools

ASCII Art GeneratorTurn a short word into an ASCII art banner in block, hash or boxed style, ready to paste into READMEs, terminals and code comments.Big Text GeneratorTurn text into bold, double-struck and fullwidth Unicode styles you can paste into social posts, subject lines and memes.Capitalized Case Text ConverterCapitalize the first letter of every word in your text, or use headline style that keeps short words lowercase. Acronyms and hyphens handled.Case Conversion ToolSwitch any text between UPPERCASE, lowercase, Title Case, Sentence case and code styles like camelCase and snake_case in one click.Character CounterCount characters, words and lines as you type, and see at a glance if your text fits X posts, meta descriptions, title tags and email subject lines.Compare Two TextsPaste two versions of a text and see exactly what was added, removed or edited, word by word or line by line. Nothing leaves your browser.Cursed Text Generator (Zalgo)Turn any text into glitchy Zalgo cursed text with four intensity levels, ready to copy for Halloween posts, horror promos and memes.Duplicate Line & Word FinderPaste a list to remove duplicate lines or words, show only the repeats, or count each item, with or without matching case.Em-Dash & Smart Quote RemoverStrip em dashes, curly quotes, ellipses and other smart punctuation from AI or Word text and convert them to plain ASCII.Invisible Text GeneratorGenerate invisible characters and blank space you can copy and paste into Instagram bios, usernames, captions and chats.Lorem Ipsum GeneratorGenerate lorem ipsum placeholder text with the number of paragraphs and words you need for mockups, wireframes and prototypes, then copy it in one click.Lowercase to Uppercase ConverterTurn lowercase text into UPPERCASE, or back again, with correct handling of accents and Turkish dotted i. Numbers and symbols stay as they are.Markdown to HTML ConverterConvert Markdown to clean HTML as you type, with a live preview, one-click copy and download.Mirror Text GeneratorFlip text into a mirror image or reverse its reading order for window decals, t-shirt transfers, stencils and puzzles.NATO Phonetic Alphabet TranslatorSpell any name, code or sentence in the NATO phonetic alphabet, from Alpha and Bravo to Niner, ready to read aloud.Number SorterSort a pasted list of numbers from smallest to largest or the reverse, remove duplicates, and see the count, sum, average and median.Phonetic Spelling GeneratorTurn a word or name into an easy sound-out respelling split into syllables, handy for voice-over scripts, name guides and ESL lessons.Pig Latin TranslatorTranslate English into Pig Latin, or Pig Latin back into English, using the classic rules. Results update as you type.Plain Text ConverterPaste text from Word, Google Docs, web pages or HTML and get clean plain text with no tags, hidden characters or smart quotes.Remove Text Formatting ToolRemove bold, italic, links, tables and hidden markup from pasted text while keeping your paragraphs and line breaks.Repeat Text GeneratorRepeat any word, phrase or string up to 10,000 times with the separator you choose. Useful for layout tests, placeholder text and dividers.Reverse Text GeneratorReverse text so it reads backwards, or flip the order of words or sentences. Emoji and accented letters stay intact.Roman Numeral ConverterConvert numbers, years and full dates to Roman numerals, or read a Roman numeral back as a number. Handles values up to 3,999,999.Sentence Case ConverterFix text typed in all caps or random capitals. Capitalize the first letter of each sentence, lowercase the rest, and keep acronyms and names.Small Text GeneratorTurn your text into tiny superscript, subscript or small caps letters you can paste into Instagram, TikTok, X and Discord.Stacked Text GeneratorStack a word vertically, one letter per line, for Instagram and TikTok bios and captions that read from top to bottom.Strikethrough Text GeneratorCross out, underline or overline any text with Unicode marks you can paste into social posts, chats and bios where formatting is not allowed.Subscript GeneratorConvert numbers, symbols and letters to Unicode subscript, so H2O becomes H₂O in posts, chats and documents that strip formatting.Superscript GeneratorConvert text and numbers to Unicode superscript for footnotes, exponents like mc² and tiny raised text that survives copy and paste.Twitter / X Font GeneratorWrite your X bio, display name or posts in bold, italic, script, gothic and other Unicode fonts that paste straight into X.Unicode Text ConverterSee your text in 19 Unicode styles at once, from bold, italic and script to gothic, double-struck, circled, squared and full width.Upside Down Text GeneratorFlip text 180 degrees so it reads upside down, then paste it into social bios, chats, comments or emails.Whitespace RemoverClean up messy text: collapse extra spaces, trim lines, remove blank lines and tabs, and strip invisible zero-width characters.Wingdings Converter & TranslatorTurn text into Wingdings-style symbols that display on any device, or decode those symbols back into letters.
New: November 2026Top 10 tools of the monthOur independent picks of the best third-party tools for AEO, GEO, SEO, social media, privacy and accessibility.

Free Chrome extensions

Riman SEO ToolkitChrome extension SEO Meta DetectorChrome extension Heading Auditor ProChrome extension Redirect Path DetectorChrome extension Link ScannerChrome extension Crawl Budget AnalyzerChrome extension Tracking Pixel DetectorChrome extension Keyword Match Type ConverterChrome extension CSS and Style ExtractorChrome extension Simple Screen CaptureChrome extension

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FAQ

Questions about the free tools

Still have a question? Ask us directly

Are these tools free?

Yes. Every tool is free, with no sign-up and no usage limits for normal use.

Is my data uploaded anywhere?

Most tools run entirely in your browser, so your text, files and numbers never leave your device. Tools that read a live web page fetch that public page through our server and do not store it.

Do I need an account?

No. Open a tool and use it.

Are the tools available in other languages?

Yes. The tools are available in English, French, Arabic and Spanish.

Can I suggest a new tool?

Yes. Send the idea through the contact form. Many tools on this site started as a client request.

Who built these tools?

Riman Agency built them for our own client work, then made them public.

How accurate are the calculators?

They use the standard formulas for each metric and show the inputs they use. They are planning aids, so check important numbers against your own platform data.

Can I use the tools for client work?

Yes. Use them for your own business or your clients. A link back is appreciated but not required.

Need a custom tool, audit or dashboard?

We build calculators, Chrome extensions, dashboards and internal tools for marketing teams.

Tell us what you needt@rimanagency.com