Convert images right in your browser
JPG, PNG, WebP, GIF, BMP, SVG, AVIF and ICO — converted locally on your device. No uploads, no sign-up, no size limits.
🔒 Your images are never collected. Everything runs locally in your browser and leaves no trace once the page is closed.
How it works
- Pick a conversion above (say, JPG to WebP), or just drop images onto the box on this page.
- Adjust quality or dimensions if you want. Quality around 80 is enough for a noticeably smaller file.
- Download individual files, or hit Download all (.zip) to take the whole batch at once.
Why this converter is different
Your images are never uploaded
Most online converters send your file to their server and back. You have no idea what happens in between. This one runs entirely in your browser: the file never leaves the device. It works offline, and that is also why it feels instant.
No size or file-count limits
Because there is no upload, there is no "max 5 MB" and no "three files per day". Fifty-megabyte images and fifty-file batches are fine. The only ceiling is your own memory.
Free, with no account and no watermark
No sign-up, no daily quota, no watermark on the output. Use it as often as you like.
Built for both English and Chinese users
Every page exists in a proper English and a proper Chinese version, each written for its own audience rather than machine-translated.
Frequently asked questions
Is it really free? Any limits?
Completely free, with no daily quota. There is no account system, no paywall, and no watermark on the results.
Are my images stored anywhere?
No. Conversion happens in browser memory and is released when you close the tab. There is no server-side storage and no upload endpoint.
How many files can I convert at once?
There is no hard limit — it depends on your device memory. A desktop handles dozens of images comfortably, a phone a dozen or so. Use Download all to save them in one ZIP.
Which formats are supported?
Input: JPG, PNG, WebP, GIF, BMP, SVG, AVIF and ICO. Output: WebP, PNG, JPG, ICO and BMP. TIFF and HEIC only decode in Safari, so they do not get their own pages.
Will the quality drop?
PNG and BMP output is lossless. WebP and JPG are lossy, but at quality 80 or above the difference is hard to see. Each tool page lists the recommended setting for that format.