Nothing leaves your device
Convert, compress and resize images in your browser
Drop in a WebP, HEIC, PNG, AVIF or almost anything else and get back the format you actually need. There is no upload, no queue, no sign-up and no watermark — the conversion runs on your own machine, which is faster and considerably more private.
Drop your image files here
or click to browse · paste with Ctrl+V · files never leave your device
Nothing queued yet. Add as many files as you like — everything runs on your own device.
Nothing is uploaded
Conversion runs in your browser. Your files never touch a server, so there is no copy of them to leak.
No sign-up, no watermark
No account, no email, no daily limit, and nothing stamped across your image.
Batch and folders
Drop a hundred files at once and download the results as a single ZIP.
Works offline
Once this page has loaded you can disconnect entirely and it still works.
Popular conversions
The conversions people need most, each with its own page explaining exactly what changes.
Compress to a specific size
Resize to a standard size
Why an in-browser converter is the right default
For most of the web's history, converting an image online meant uploading it. The file went to a server, some software there rewrote it, and you downloaded the result — with a promise, in the small print, that the original would be deleted within an hour or a day. That model was never comfortable, and it was never necessary for the actual work; it was necessary because browsers could not do the job themselves.
They can now. Modern browsers ship complete image decoders and encoders, and WebAssembly lets the remaining formats — HEIC, AVIF, TIFF, JPEG XL — run at close to native speed in a tab. Everything this site does happens on your device. That removes the upload wait, removes the file size limits, removes the queue you sit in at busy times, and removes the copy of your photograph on somebody else's disk.
It also means the tool keeps working with the network off. Load this page, turn off your Wi-Fi, and convert away — a decent test of whether a site's privacy claim is real.
What you can do here
- Convert between formats. Over a hundred format pairs, each with a page that explains what is preserved, what is lost, and why the conversion is usually needed in the first place.
- Compress to an exact size limit. Give it a number — 100 KB, 50 KB, 2 MB — and it finds the best quality that fits, instead of making you guess at a quality slider.
- Resize to a standard. Passport and visa photo dimensions, social media sizes, and screen resolutions, with the millimetre-to-pixel arithmetic already done.
Frequently asked questions
Are my images uploaded anywhere?
No. Every conversion runs inside your own browser using JavaScript and WebAssembly. Your files are never transmitted, which you can confirm by opening the Network tab in your developer tools while you convert — or simply by disconnecting from the internet after the page loads and watching it carry on working.
Is it really free, and what is the catch?
It is free, with no account, no watermark and no daily limit. Because the conversion happens on your device rather than on a server, running this site costs almost nothing regardless of how many files people convert — which is exactly why it can stay free without limits.
How many files can I convert at once?
As many as your device can hold in memory. Dropping a hundred files is routine on a desktop; phones will manage far fewer very large images. Results download individually or together as a single ZIP.
Which formats are supported?
You can read JPG, PNG, WebP, AVIF, GIF, BMP, TIFF, ICO, SVG, HEIC and JPEG XL, and write JPG, PNG, WebP, AVIF, GIF, BMP, TIFF, ICO, JPEG XL and PDF. HEIC and SVG are read-only, because converting a photo back into vector shapes is not something any tool can honestly do.
Does it work on a phone?
Yes. The interface adapts to small screens and you can pick images straight from your camera roll. HEIC files from an iPhone convert directly, which is usually the reason to reach for this on a phone in the first place.