Bulk convert images to WebP in seconds, right in your browser
Drop a whole folder. Shrink PNG, JPG, GIF, AVIF and SVG files by up to 80%, see the weight you save, and download the first image free. No upload, no watermark, no waiting.
Convert images to WebP
Compress images without changing their format
JPG stays JPG, PNG stays PNG. Type the size a form or an inbox asks for, such as 100 KB, and the compressor finds the best quality that fits. Same privacy: nothing is uploaded.
Compress JPG images
Compress JPG and JPEG photos free in your browser, no upload. Quality 75 typically halves a camera photo with no visible change, and it stays a JPG.
Compress PNG images
Compress PNG files free in your browser, no upload. A palette of up to 256 colors, like pngquant, shrinks most PNGs by half or more and keeps transparency.
Compress an image to 50 KB
Reduce a photo to 50 KB free, with no upload. The target is preset: the tool picks the best JPG quality under 50 KB and only scales down if it has to.
Smaller images, faster pages, better rankings
Images are the heaviest part of almost every web page. WebP delivers the same picture in a fraction of the bytes, which directly improves Core Web Vitals and the page experience signals Google uses to rank sites.
100% private
Conversion happens inside your browser with the built-in WebP encoder. Your images never touch a server.
Up to 80% smaller
WebP is 25–35% lighter than JPEG and 60–85% lighter than PNG at the same visual quality.
Instant results
No upload queue, no waiting. A 5 MB photo becomes a 200 KB WebP in well under a second.
Bulk convert, then unlock the ZIP
Drop up to 100 images at once, see the total size saved, and download every file as a ZIP with Pro.
Resize in the same step
Cap the width to your layout size and remove the pixels nobody sees. Quality stays, bytes go.
Works everywhere
WebP is supported by 97%+ of browsers, every CMS and every CDN. Ready for WordPress, Shopify, Webflow and more.
Four steps, no software
Everything runs on your device using the WebP encoder built into your browser. That is why it is instant and why nothing is ever uploaded.
Drop your images
Select PNG, JPG, GIF, BMP, AVIF or SVG files. On Safari, HEIC iPhone photos work too.
Pick quality and maximum width
80% quality is perfect for photos. Set the max width to the largest size your site displays.
Convert to WebP
Your browser encodes each image locally. Watch the size shrink in the results list.
Download
Grab each WebP individually, or download the whole batch as a ZIP with Pro.
Convert from every common image format
Dedicated converters with format-specific tips for quality, transparency and browser support.
Convert PNG to WebP
Convert PNG to WebP for free in your browser. Keep transparency, shrink files by up to 80% and speed up your website. No upload, no signup, no watermark.
Convert JPG to WebP
Convert JPG/JPEG to WebP free in your browser. Cut photo file size by 25–35% at identical quality, resize oversized camera photos and speed up your site.
Convert GIF to WebP
Convert GIF images to WebP for free in your browser. Escape the 256-colour limit, keep transparency and shrink still GIFs by 60–90%. Private and instant.
Convert BMP to WebP
Convert BMP bitmap images to WebP for free in your browser. Turn uncompressed multi-megabyte bitmaps into web-ready images that are 95% smaller. No upload required.
Convert AVIF to WebP
Convert AVIF images to WebP in your browser for free. Fix compatibility with older browsers, CMS uploads and design tools while keeping small file sizes.
Free for occasional use. Pro from $2.42/month when you have a folder to convert.
Convert a whole batch for free, see how much you save and download the first image, no account needed. Pro ($4.99/month, $29/year or $59 once) unlocks every file as a ZIP, removes the daily limit and follows you on every device.
Free
No card- Convert whole batches of up to 100 images in your browser
- Download the first image of each batch
- 3 batches a day
- 50 conversions a month in Claude, ChatGPT and the API (free account)
- Nothing is uploaded when you convert in the browser
Pro
Best valueFull access: every file, every device, your AI assistant and the API.
- Download every file of every batch, as one ZIP
- No daily limit, up to 100 images per batch
- Pro on all your devices: sign in anywhere
- Convert in Claude, ChatGPT and any MCP client
- REST API with your own keys
- Images by URL up to 25 MB, animated GIF to animated WebP
- Priority support
Same Pro whichever way you pay. Secure checkout by Stripe, 14-day money-back guarantee.
API
Opening soonPay for what you convert, at any volume: apps, CMSs and build pipelines.
- Pay per conversion, billed monthly, no cap
- Everything in Pro
- 600 requests a minute, batches of 100
- Usage per key and invoices
- Volume pricing above 1,000,000 conversions a month
Until it opens, Pro includes the API with a fair-use allowance.
Prices in US dollars, taxes included where they apply. Stripe shows your local currency at checkout (euro prices use the same figures). Monthly and yearly renew automatically until you cancel from your account; lifetime is a single payment, and so is the 7-day pass, which gives Pro for 7 days and then simply ends. Server conversions (API and AI assistants) are covered up to 10,000 a month under fair use. Converting in your browser never uploads your images.
Need it in your pipeline, or in Claude? Use the API.
The same conversion as one HTTPS request: send an image or its URL with a quality and a maximum width, get an optimised WebP back. Animated GIFs stay animated. Ideal for CMS upload hooks, product catalogues and CI builds, and it powers the Claude and ChatGPT integrations.
One request, one WebP — bash
Is WebP really better?
Side-by-side numbers on size, quality, features and support.
WebP vs JPEG
WebP wins for the web. It produces 25–35% smaller files than JPEG at equal visual quality, supports transparency and animation, and is displayed natively by 97%+ of browsers. Keep JPEG only as a fallback for legacy clients or when a platform does not accept WebP.
WebP vs PNG
Use PNG as a working/source format and WebP for everything you publish. WebP lossless is ~26% smaller than PNG; WebP lossy with alpha is typically 60–80% smaller with no visible difference. Only serve PNG when a platform explicitly requires it.
WebP vs AVIF
AVIF wins on raw compression (10–20% smaller than WebP at equal quality) but loses on encode speed, tooling and platform support. WebP is the safe default for every site; AVIF is worth adding as a first `<source>` in `<picture>` when you have an automated pipeline and traffic at scale.
Learn image optimisation
Practical, data-backed guides on WebP, Core Web Vitals, WordPress and image SEO.
What is WebP?
Everything you need to know about the WebP image format: how it works, how much smaller it is than JPEG and PNG, browser support, pros and cons, and how to convert your images.
Best WebP quality setting
What quality should you use when converting to WebP? We tested photos, screenshots and graphics at every level. Get concrete recommendations per image type.
WebP for WordPress
Step-by-step guide to converting and uploading WebP images to WordPress, fixing upload errors, handling fallbacks and speeding up your site without extra plugins.
Core Web Vitals & WebP
Learn how converting images to WebP improves Largest Contentful Paint, Cumulative Layout Shift and your PageSpeed Insights score, with a step-by-step optimisation checklist.
WebP converter FAQ
WebP is a modern image format developed by Google that delivers 25–35% smaller files than JPEG and up to 80% smaller than PNG at the same visual quality. Smaller images load faster, improve Core Web Vitals (especially Largest Contentful Paint), reduce bandwidth costs and help your pages rank better in Google.
Yes. Drop a whole batch (up to 100 images), convert it with full control over quality and maximum width, see exactly how much weight you save and download the first image, no account and no watermark, up to 3 batches a day. Pro unlocks every file of the batch as a single ZIP and removes the daily limit: $4.99/month, $29/year or $59 once.
No. Every conversion runs locally inside your browser using the built-in canvas and WebP encoder. Your files never leave your device, nothing is stored and there is nothing to delete. That makes it safe for confidential documents, client work, product photos and personal pictures.
Any format your browser can display: PNG, JPG/JPEG, GIF (first frame), BMP, AVIF, SVG and, on Safari, HEIC/HEIF and TIFF. You can also re-compress existing WebP files to make them smaller.
Yes. The image compressor keeps the format: JPG stays JPG, PNG stays PNG (with a 256-color palette that keeps transparency) and WebP stays WebP. You can also type a target size such as 100 KB and it finds the highest quality that fits. It runs in your browser like the converter: nothing is uploaded.
80% is the best default for photographs: it is visually indistinguishable from the original for most viewers while cutting file size dramatically. Use 85–92% for screenshots, UI graphics and images with text, and 60–75% for large hero backgrounds where a little softness is acceptable.
Yes. Set a maximum width (200–6000 px) and any image wider than that is scaled down proportionally before encoding. Smaller images are never upscaled. This is the single most effective way to shrink oversized camera photos before publishing them on the web.
Yes. Everyone can drop up to 100 images at a time, watch the progress bar and see the total size saved. On the free plan you download the first image of the batch; Pro (from $2.42/month) unlocks all the files, already converted with the same settings, as a single ZIP archive.
Yes. WebP is supported by Chrome, Edge, Firefox, Opera, Samsung Internet and Safari (macOS Big Sur / iOS 14 and later), which covers more than 97% of global web traffic. For the tiny remainder you can keep a JPEG fallback with the HTML <picture> element.
WebP supports an alpha channel (transparency) like PNG and animation like GIF. The browser converter encodes still images with transparency preserved; for animated GIFs it converts the first frame, because browsers' canvas API exposes a single frame. The API and the AI-assistant integrations convert animated GIFs to animated WebP.
AVIF compresses slightly better than WebP but is slower to encode, has weaker tooling support and is not available in every browser or CMS yet. WebP is the pragmatic choice today: excellent compression, universal browser support and instant encoding in the browser. See our WebP vs AVIF comparison for details.
Stripe asks for your e-mail at checkout and Pro is attached to an account with that address. You come back to the converter signed in, with your converted files waiting. On another device, sign in with a 6-digit code sent to the same e-mail: no password to remember.
Monthly and yearly plans cancel from your account page in two clicks: Pro stays active until the end of the period you paid for. Lifetime has nothing to cancel. Every purchase has a 14-day money-back guarantee, no questions asked: use the refund form and we process it within two business days.
Indirectly but significantly. Google uses page experience signals, including Core Web Vitals, in ranking. Images are usually the heaviest part of a page, so converting them to WebP lowers Largest Contentful Paint, reduces bounce rates and lets Googlebot crawl more pages with the same budget. PageSpeed Insights explicitly recommends 'Serve images in next-gen formats' such as WebP.
Absolutely. Convert your images here, then upload the .webp files to your media library as you would with JPG or PNG. All modern CMS platforms accept WebP uploads. Our WordPress guide walks through the exact steps and plugin-free workflow.
Yes. Every account gets an API key on its account page and a monthly allowance of server conversions (Free 50, Pro 10,000, Business more). Send an image or its URL with a quality and a maximum width in one HTTPS request, receive an optimised WebP. It is designed for CMS upload hooks, product catalogues and CI pipelines.
Yes. Add Fast WebP Converter to Claude or ChatGPT (it is an MCP server) and ask in plain words: convert this image, shrink these product photos to 1600 px, or how much would my website save with WebP. The assistant returns download links and a result card. It uses your account's monthly allowance, Free included.
Make your website faster today
Convert your first image for free. Unlock every file with Pro, from $2.42/month, or automate everything with the API and your AI assistant.