Convert images to WebP in seconds, right in your browser
The fast, private WebP converter. Shrink PNG, JPG, GIF, AVIF and SVG files by up to 80%, resize them for the web and speed up your website. No upload, no watermark, no waiting.
Convert images to WebP
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.
Batch & ZIP with PRO
Drop up to 100 images at once and download everything as a single ZIP archive.
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.
Convert SVG to WebP
Convert SVG vector graphics to WebP raster images in your browser. Choose the exact output width, keep transparency and get files ready for social media, CMS uploads and emails.
Free for occasional use. PRO when you have a folder to convert.
The free plan converts 3 images a day with no account. PRO removes the limit, adds batch conversion of 100 images at once and one-click ZIP download.
Monthly
Cancel anytime. Perfect for a one-off project.
Secure checkout by Stripe. Instant unlock on this device. 14-day money-back guarantee.
Yearly
Save 18%About $4.08 per month, billed once a year.
Secure checkout by Stripe. Instant unlock on this device. 14-day money-back guarantee.
Lifetime
Pay onceOwn it forever. Every future update included.
Secure checkout by Stripe. Instant unlock on this device. 14-day money-back guarantee.
- Batch convert up to 100 images at once
- No daily conversion limit
- Download every result as a single ZIP
- Priority email support
- Everything stays in your browser: nothing is uploaded
- 3 conversions per day
- One image at a time
- Quality and max-width controls
- 100% local processing
Prices in USD. Monthly and yearly plans renew automatically and can be cancelled at any time from the Stripe receipt email. The lifetime plan is a one-time payment. PRO is unlocked per browser after checkout via the confirmation link; contact us if you need to move it to another device.
Need it in your pipeline? Use the WebP API.
The same conversion as one HTTPS request. Send an image with a quality value and a maximum width, get an optimised WebP back. Ideal for CMS upload hooks, product catalogues and CI builds.
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. The free plan lets you convert up to 3 images per day with full control over quality and maximum width, no account and no watermark. PRO removes the daily limit and adds batch conversion of up to 100 images at once plus ZIP download, from $5/month, $49/year or $99 for life.
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.
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.
Batch conversion is a PRO feature. PRO users can drop up to 100 images at a time, watch the progress bar and download everything as a single ZIP archive. The free plan converts one image at a time.
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. This converter encodes still images with transparency preserved; for animated GIFs only the first frame is converted, because browsers' canvas API exposes a single frame.
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.
After checkout, Stripe redirects you back to Fast WebP Converter with a confirmation link that unlocks PRO on the device and browser you used. Nothing to install, no login. If you switch browsers or clear cookies, contact us and we will re-enable it for you.
Monthly and yearly subscriptions can be cancelled at any time from your Stripe receipt. We also offer a 14-day money-back guarantee on every plan, no questions asked. Use the refund form and we will 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. The WebP API plan ($99/month) exposes the same conversion as a single HTTPS request: send the image with a quality value and a maximum width, receive an optimised WebP. It is designed for CMS upload hooks, product catalogues and CI pipelines. Your API key is emailed right after payment.
Make your website faster today
Convert your first image for free. Unlock batch mode from $5/month, $49/year or $99 for life, or automate everything with the API.