Convert image formats
Convert between JPG, PNG, WebP, AVIF, GIF and HEIC without uploading anything. Reads iPhone HEIC photos and AVIF files that many apps still cannot open. Convert many images at once and save them as a ZIP.
Settings
How to use
- 1
Add images
Drag and drop into the box or click to choose. You can add several at once.
- 2
Choose format and quality
Pick the output format and a quality from 1 to 100. Higher means better quality and a larger file.
- 3
Convert and save
Press Run. Images are processed one by one and can be saved as they finish, or all together as a ZIP.
Choosing a format
For photos, WebP and AVIF give the smallest files. WebP opens in virtually every browser and app; AVIF is another 20–30% smaller but does not open in older software. To keep transparency, use PNG, WebP or AVIF — JPG cannot hold transparency, so transparent areas become white.
When you are not sure what the recipient can open — government forms, office documents — JPG or PNG is the safe choice. GIF output is reduced to 256 colours, so it suits diagrams and logos rather than photos.
Frequently asked questions
Can I convert HEIC photos?
Yes. HEIC / HEIF photos from iPhone and iPad can be converted to JPG, PNG, WebP and more. Decoding uses libheif compiled to WebAssembly, so the file never leaves your browser.
Will the quality drop?
JPG, WebP and AVIF are lossy, so even at quality 100 the result is not bit-identical. For photos, quality 80–90 is visually indistinguishable. Converting to PNG is lossless.
Is EXIF or location data kept?
No. The image is decoded to pixels and re-encoded, so metadata such as capture time, camera model and GPS location is not included in the output.
How many images can I convert at once?
There is no limit. Images are processed one at a time, so large batches do not exhaust your device's memory. Save each as it finishes, or all of them as a ZIP.
Help us improve the service
If a conversion fails, sending us the circumstances helps us track down the cause. Knowing which devices and formats fail most often, and how long processing takes, lets us revise the supported formats and fix the bugs behind them. If you don't mind, leaving this on is a real help.
What is sent
The tool you used and the settings you chose (output format, quality, etc.), your device specs (GPU, memory, core count), the input format with a rough size, how many files succeeded or failed and how long it took, and the error type and details when something fails.
What is never sent
The files themselves, file names, text, subtitles or prompts you add to a video, and IP addresses. The data goes only to this site's own server, never to a third-party service.