{"id":5147,"date":"2026-06-18T13:57:50","date_gmt":"2026-06-18T13:57:50","guid":{"rendered":"https:\/\/rimanagency.com\/image-format-converter-convert-between-jpg-png-webp-online\/"},"modified":"2026-06-18T15:58:29","modified_gmt":"2026-06-18T15:58:29","slug":"image-format-converter-convert-between-jpg-png-webp-online","status":"publish","type":"page","link":"https:\/\/rimanagency.com\/fr\/image-format-converter-convert-between-jpg-png-webp-online\/","title":{"rendered":"Convertisseur de formats d&#039;image \u2014 Convertissez entre JPG, PNG et WebP en ligne"},"content":{"rendered":"\n<style>.rt-h{background:linear-gradient(135deg,#f1f5e8,#e8efdb);border-radius:14px;padding:32px;margin:0 0 24px;text-align:center}.rt-h h1{margin:0 0 10px;font-size:28px;color:#4a6320}.rt-tool{background:#fff;border:1px solid #e0e6d8;border-radius:12px;padding:22px;margin:0 0 24px}.rt-tool h3{margin:0 0 14px;color:#4a6320;font-size:18px}.rt-drop{display:block;border:2px dashed #d4dac6;border-radius:10px;padding:32px 20px;text-align:center;background:#fafafa;cursor:pointer;transition:all .2s;position:relative}.rt-drop:hover,.rt-drop.hover{border-color:#719430;background:#f1f5e8}.rt-drop .rt-drop-main{display:block;margin:0 0 6px;font-size:15px;color:#516048}.rt-drop .rt-drop-sub{display:block;font-size:12px;color:#888}.rt-drop input[type=file]{position:absolute;left:-9999px;width:1px;height:1px;opacity:0}.rt-btn{background:#719430;color:#fff;border:none;padding:10px 18px;border-radius:6px;font-weight:700;cursor:pointer;font-size:14px}.rt-btn:hover{background:#4a6320}.rt-ctrl{display:grid;grid-template-columns:repeat(auto-fit,minmax(180px,1fr));gap:12px;margin:14px 0}.rt-ctrl label{display:block;font-size:12px;color:#516048;font-weight:600;margin-bottom:4px}.rt-ctrl input,.rt-ctrl select{width:100%;padding:8px;border:1px solid #d4dac6;border-radius:6px;font-size:13px;box-sizing:border-box}.rt-result{margin-top:14px}.rt-cta{background:linear-gradient(135deg,#719430,#4a6320);color:#fff;border-radius:14px;padding:32px;text-align:center;margin:30px 0}.rt-cta h3{margin:0 0 6px;color:#fff}.rt-cta a{background:#fff;color:#4a6320;padding:12px 28px;border-radius:6px;font-weight:700;text-decoration:none;display:inline-block;margin-top:14px}<\/style><div class=\"rt-h\"><h1>Image Format Converter<\/h1><p>Convert images between JPG, PNG, and WebP in your browser. Useful when a CMS will not accept WebP, when you need transparency, or when you need to shrink a PNG photo by switching to JPG.<\/p><\/div><div class=\"rt-tool\"><h3>Upload an image<\/h3><div class=\"rt-drop\" id=\"if-drop\" onclick=\"document.getElementById('if-file').click()\"><span class=\"rt-drop-main\"><b>Click to upload or drag an image here<\/b><\/span><span class=\"rt-drop-sub\">JPG, PNG, WebP supported<\/span><input type=\"file\" id=\"if-file\" accept=\"image\/*\"><\/div><div id=\"if-orig\" style=\"font-size:13px;color:#516048;margin:10px 0;display:none\"><\/div><div class=\"rt-ctrl\"><div><label>Convert to<\/label><select id=\"if-format\"><option value=\"jpeg\">JPEG<\/option><option value=\"png\">PNG<\/option><option value=\"webp\">WebP<\/option><\/select><\/div><div><label>Quality (JPG\/WebP)<\/label><input type=\"number\" id=\"if-quality\" value=\"90\" min=\"1\" max=\"100\"><\/div><div><label>Background (PNG \u2192 JPG)<\/label><input type=\"color\" id=\"if-bg\" value=\"#ffffff\"><\/div><\/div><button class=\"rt-btn\" id=\"if-go\" style=\"width:100%;margin-top:10px\">Convert<\/button><div class=\"rt-result\" id=\"if-result\"><\/div><\/div><div style=\"max-width:760px;margin:30px auto;background:#fff;border:1px solid #e0e6d8;border-radius:10px;padding:24px;font-family:system-ui,-apple-system,sans-serif\"><div id=\"if-drop\" style=\"border:2px dashed #719430;border-radius:10px;padding:40px;text-align:center;cursor:pointer;background:#fafbf6\"><div style=\"font-size:15px;color:#222;font-weight:600;margin-bottom:6px\">Drop image here or click to upload<\/div><div style=\"font-size:12px;color:#666\">JPG, PNG, WebP, BMP, GIF supported<\/div><input type=\"file\" id=\"if-file\" accept=\"image\/*\" style=\"display:none\"><\/div><div id=\"if-orig\" style=\"margin-top:14px;font-family:Consolas,monospace;font-size:12px;color:#666\"><\/div><div style=\"display:grid;grid-template-columns:1fr 1fr;gap:14px;margin-top:16px\"><div><label style=\"display:block;font-size:12px;color:#719430;font-weight:700;text-transform:uppercase;letter-spacing:.5px;margin-bottom:6px\">Convert to<\/label><select id=\"if-format\" style=\"width:100%;padding:10px;border:1px solid #d4dac6;border-radius:6px;background:#fff;font-size:14px\"><option value=\"image\/png\">PNG<\/option><option value=\"image\/jpeg\" selected>JPG<\/option><option value=\"image\/webp\">WebP<\/option><\/select><\/div><div><label style=\"display:block;font-size:12px;color:#719430;font-weight:700;text-transform:uppercase;letter-spacing:.5px;margin-bottom:6px\">Transparent BG color (for JPG)<\/label><input type=\"color\" id=\"if-bg\" value=\"#ffffff\" style=\"width:100%;height:42px;border:1px solid #d4dac6;border-radius:6px;background:#fff;cursor:pointer\"><\/div><\/div><div style=\"margin-top:14px\"><label style=\"display:block;font-size:12px;color:#719430;font-weight:700;text-transform:uppercase;letter-spacing:.5px;margin-bottom:6px\">Quality (JPG\/WebP)<\/label><input type=\"range\" id=\"if-quality\" min=\"10\" max=\"100\" value=\"92\" style=\"width:100%\"><\/div><button id=\"if-go\" style=\"margin-top:16px;background:#719430;color:#fff;border:none;padding:12px 22px;border-radius:6px;cursor:pointer;font-weight:700;font-size:14px;width:100%\">Convert<\/button><div id=\"if-result\"><\/div><\/div>\n<script>(function(){var drop=document.getElementById('if-drop'),file=document.getElementById('if-file');drop.addEventListener('click',function(e){if(e.target.tagName!=='INPUT')file.click();});['dragover','dragenter'].forEach(function(e){drop.addEventListener(e,function(ev){ev.preventDefault();drop.classList.add('hover');});});['dragleave','drop'].forEach(function(e){drop.addEventListener(e,function(){drop.classList.remove('hover');});});drop.addEventListener('drop',function(e){e.preventDefault();if(e.dataTransfer.files[0])handleFile(e.dataTransfer.files[0]);});file.addEventListener('change',function(e){if(e.target.files[0])handleFile(e.target.files[0]);});function fmtSize(b){if(b===0)return '0 B';var i=Math.floor(Math.log(b)\/Math.log(1024));var u=['B','KB','MB','GB'];return (b\/Math.pow(1024,i)).toFixed(1)+' '+u[i];}function mkDiv(c){var d=document.createElement('div');d.style.cssText=c;return d;}var orig=null,origType='';function handleFile(f){origType=f.type;var size=f.size;var r=new FileReader();r.onload=function(ev){var img=new Image();img.onload=function(){orig=img;var ow=document.getElementById('if-orig');ow.style.display='block';ow.textContent='Original: '+orig.width+' x '+orig.height+' px - '+origType+' - '+fmtSize(size);};img.src=ev.target.result;};r.readAsDataURL(f);}document.getElementById('if-go').addEventListener('click',function(){if(!orig){alert('Upload an image first');return;}var canvas=document.createElement('canvas');canvas.width=orig.width;canvas.height=orig.height;var ctx=canvas.getContext('2d');var format=document.getElementById('if-format').value;if(format==='jpeg'){ctx.fillStyle=document.getElementById('if-bg').value;ctx.fillRect(0,0,canvas.width,canvas.height);}ctx.drawImage(orig,0,0);var q=parseInt(document.getElementById('if-quality').value)\/100;canvas.toBlob(function(blob){var url=URL.createObjectURL(blob);var result=document.getElementById('if-result');result.textContent='';var info=mkDiv('background:#f1f5e8;border:1px solid #c4d49e;border-radius:8px;padding:14px;margin-top:14px');info.textContent='Converted: image\/'+format+' - '+fmtSize(blob.size);result.appendChild(info);var dl=mkDiv('text-align:center;margin-top:14px');var a=document.createElement('a');a.href=url;a.download='converted.'+format;a.textContent='Download '+format.toUpperCase();a.style.cssText='background:#719430;color:#fff;padding:10px 18px;border-radius:6px;font-weight:700;text-decoration:none;display:inline-block';dl.appendChild(a);result.appendChild(dl);var prev=mkDiv('margin-top:14px;text-align:center');var img=document.createElement('img');img.src=url;img.style.cssText='max-width:100%;max-height:300px;border:1px solid #e0e6d8;border-radius:8px';prev.appendChild(img);result.appendChild(prev);},'image\/'+format,q);});})();<\/script><h2>How to use the Image Format Converter<\/h2><p>Upload an image. Pick target format. For PNG to JPEG, choose background color. Click Convert.<\/p><h2>Why this tool matters<\/h2><p>Different platforms accept different formats. Reliable format converter is the bridge between what you have and what you need.<\/p><h2>Common use cases<\/h2><ul><li>WebP to JPG for legacy CMS<\/li><li>PNG to JPG for smaller attachments<\/li><li>Photos to WebP for e-commerce<\/li><li>Transparent PNG to JPG with background<\/li><li>HEIC to JPG for Windows<\/li><li>Single-format design prep<\/li><\/ul><h2>PNG transparency becomes white when converted to JPG<\/h2><p>JPEG does not support transparency. Pick a different background color in the tool if your page has a different background.<\/p><h2>Frequently Asked Questions<\/h2><p><strong>Quality loss?<\/strong><br>PNG to JPG\/WebP: slight. JPG to PNG: no loss but bigger file. PNG to WebP: lossless option available.<\/p><p><strong>Batch?<\/strong><br>One at a time. Use ImageMagick for batch.<\/p><p><strong>HEIC?<\/strong><br>Most browsers cannot decode. Convert on Mac Preview first.<\/p><p><strong>Always use WebP?<\/strong><br>For modern web yes (95%+ browser support). For email no.<\/p><div class=\"rt-cta\"><h3>Building creative production pipelines?<\/h3><p style=\"margin:0;opacity:.95\">Riman Agency builds production workflows.<\/p><a href=\"\/contact\/\">Talk to Creative Ops<\/a><\/div>\n","protected":false},"excerpt":{"rendered":"<p>Image Format Converter Convert images between JPG, PNG, and WebP in your browser. Useful when a CMS will not accept WebP, when you need transparency, or when you need to shrink a PNG photo by switching to JPG. Upload an image Click to upload or drag an image hereJPG, PNG, WebP supported Convert toJPEGPNGWebP Quality [&hellip;]<\/p>\n","protected":false},"author":4,"featured_media":0,"parent":0,"menu_order":0,"comment_status":"closed","ping_status":"closed","template":"","meta":{"footnotes":""},"class_list":["post-5147","page","type-page","status-publish","hentry"],"yoast_head":"<!-- This site is optimized with the Yoast SEO plugin v27.6 - https:\/\/yoast.com\/product\/yoast-seo-wordpress\/ -->\n<title>Image Format Converter \u2014 Convert Between JPG, PNG &amp; WebP Online - Riman Agency<\/title>\n<meta name=\"robots\" content=\"index, follow, max-snippet:-1, max-image-preview:large, max-video-preview:-1\" \/>\n<link rel=\"canonical\" href=\"https:\/\/rimanagency.com\/fr\/image-format-converter-convert-between-jpg-png-webp-online\/\" \/>\n<meta property=\"og:locale\" content=\"fr_CA\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"Image Format Converter \u2014 Convert Between JPG, PNG &amp; WebP Online - Riman Agency\" \/>\n<meta property=\"og:description\" content=\"Image Format Converter Convert images between JPG, PNG, and WebP in your browser. 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