Convert images without uploading them
HEIC, WebP, PNG and AVIF → JPG. Up to 100 files at once, processed inside your browser. Free, no signup, no watermark.
Drop your image files here
or choose files — up to 100 at once, 100 MB each
No upload. Files are processed in your browser.
Files never leave your device · EXIF and GPS removed
No account needed · Files are decoded locally with WebAssembly
Pick a converter
Every tool below runs on the same local engine.
Why people use FormatWave
Your photos stay yours
Other converters upload your file, process it on a server and send it back. This one never does. Passport scans and family photos do not belong in someone else’s bucket.
No upload, so no waiting
A 4 MB photo takes a fraction of a second to decode locally. There is no queue, no “free users wait 30 seconds”, and no file-size limit imposed by a server.
Metadata stripped
Re-encoding drops EXIF, including GPS coordinates. Share a photo without also sharing where you took it.
How it works
- Drop your files. Drag a folder or pick up to 100 images. They are read by your browser from disk — no network request carries them.
- Choose the output. JPG for compatibility, PNG for lossless, WebP for the web. Resize the long edge if a form has a pixel limit.
- Download. Save files individually or as one ZIP. Filenames are preserved and metadata is removed.
Questions
Are my files uploaded anywhere?
No. Every converter on this site runs in your browser using WebAssembly and Canvas. There is no upload endpoint — you can disconnect from the internet after the page loads and keep converting.
Is it really free?
Yes. No account, no watermark, no daily cap on the number of batches. The only limits are technical: 100 files per batch and 100 MB per file.
Which formats can I convert?
HEIC/HEIF, WebP, PNG, JPG and AVIF as input; JPG, PNG and WebP as output. HEIC output is not possible because browsers cannot encode HEVC.
Does it work offline?
After your first visit the decoder is cached, so conversion works without a connection. Bookmark the page and it becomes a local app.
What happens to photo metadata?
It is removed during re-encoding. That includes EXIF, camera details and GPS coordinates — usually what you want before sharing a photo publicly.
Guides
Background on formats, codecs and the metadata in your photos.