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Frequently Asked Questions

Everything you need to know about converting images to WebP.

Is WebPTools really free?
Yes — 100% free with no limits, no sign-up and no watermarks. Convert as many images as you like, as often as you like.
Are my images uploaded to a server?
No. The entire conversion runs inside your browser using the HTML5 Canvas API. Your files never leave your device, which makes it perfectly safe for private or client photos.
Which image formats are supported?
You can convert JPG, PNG, GIF, BMP and WebP images to WebP, JPG or PNG. Animated GIFs are converted using their first frame.
How much smaller are WebP files?
Google's studies show that lossy WebP images are 25–34% smaller than comparable JPEG files, and lossless WebP is about 26% smaller than PNG. The exact savings depend on your quality setting and the image content.
Is there a file size or quantity limit?
There is no built-in limit. The practical limit is your device's memory — most computers comfortably handle images of 20–30 megapixels and batches of 50+ photos.
Does it work on mobile?
Yes — the tool works in modern browsers on Android, iOS, Windows and macOS. On older Safari versions, use the JPG or PNG output instead of WebP.
Why did my converted file get bigger?
Very small or already-optimized images can occasionally grow after conversion. Try lowering the quality slider — you will usually save far more file size than you lose in visual quality.
Is image quality lost during conversion?
At quality 80 and above, WebP is visually near-identical to the original for most photos. PNG output is always lossless. You can also use the built-in Compare viewer to check the before/after quality yourself.
What happens to EXIF metadata (GPS, camera info)?
It is stripped automatically during re-encoding. The files you download contain clean pixel data only — a nice privacy bonus when publishing images online.
Can I convert many files at once?
Yes. Drop a whole folder's worth of images, watch the progress bar, review each file's savings and download everything as a single ZIP archive.
Which browsers support WebP?
About 97% of browsers in use today: Chrome, Edge, Firefox, Safari 14+, Opera and all modern mobile browsers. The tool itself also runs in all of these.
Who built this? How can I contact you?
WebPTools is an independent, browser-based project. Feedback and bug reports are always welcome on the contact page — we reply on WhatsApp and email.

Top 10 WebP questions from around the world

The most-searched questions about the WebP format — answered simply.

What is a WebP file?
A WebP file is an image saved in Google's WebP format, launched in 2010. It uses modern compression to make images 25–34% smaller than JPG while also supporting transparency and animation.
Is WebP better than JPG?
For websites, yes — WebP produces noticeably smaller files at the same visual quality. JPG still wins for maximum compatibility with very old software and printers.
Does WebP support transparency like PNG?
Yes. WebP has a full alpha channel just like PNG, so logos and graphics keep their transparent backgrounds perfectly.
Can WebP files be animated like GIF?
Yes — animated WebP replaces GIF with much smaller files. Note: converting an animated GIF with this tool keeps only the first frame.
How do I open a WebP file on Windows or Mac?
Any modern browser opens WebP — just double-click the file. On Windows 10/11 the Photos app supports it, and on Mac it opens directly in Preview.
How do I convert WebP to JPG or PNG?
Use our free WebP to JPG or WebP to PNG tools — drag the file in, click convert, download. Everything happens privately in your browser.
Does WebP work on iPhone and Android?
Yes. iOS 14+ (Safari) and all modern Android browsers display WebP images natively — that covers well over 95% of mobile devices in use.
Is WebP lossy or lossless?
Both. WebP offers lossy mode (much smaller, tiny quality trade-off) and lossless mode (pixel-perfect, still about 26% smaller than PNG).
Why is my WebP file not smaller than the original?
Images that are already optimized, very small in size, or converted at very high quality can stay the same size. Try lowering the quality slider to 70–80.
Will WebP replace JPG? What about AVIF?
WebP is already the standard image format of the web with ~97% browser support. AVIF is a newer format with similar goals but slightly lower support — for now, WebP is the safest choice for any website.