Why do I get an error when converting to AVIF?

Encoding AVIF requires browser support that, as of today, virtually no browser ships in its canvas encoder — browsers can usually decode AVIF but not create it. Convertora tests your browser's actual encoding support at runtime and shows a clear error instead of silently giving you a mislabeled PNG. If you need AVIF output, a desktop tool like Squoosh's CLI or ImageMagick is the practical route; for everything else, WebP gets you most of the size benefit.

What happens to transparency when converting PNG to JPG?

JPG has no alpha channel, so transparent areas are filled with a white background during conversion. If you need the transparency kept, choose PNG or WebP as the output format instead.

Is EXIF metadata (camera, GPS, capture date) preserved?

No. Canvas-based conversion redraws the pixels and writes a fresh file, so EXIF data is dropped. That's a privacy win when sharing photos publicly, but if you need metadata kept, use a dedicated EXIF-aware converter.

Does converting between lossy formats lose quality?

Each lossy re-encode (JPG or WebP at less than 100 quality) discards a little information. One conversion at quality 85 is imperceptible; repeatedly round-tripping the same image through lossy formats will gradually soften it. When in doubt, convert from the original file rather than from a previous conversion.

Convert Images

Convert between JPG, PNG, WebP, and AVIF formats with quality control.

Drop image files here or browse

Max 50MB per file · Up to 20 files

About Convert Image Format

Every image format makes a different trade-off. JPG compresses photos well but can't store transparency. PNG is lossless and supports transparency, but photo files get big. WebP usually beats both on size, and AVIF beats WebP — at the cost of patchier software support. Sooner or later you have a file in the wrong format for the job: a WebP that a CMS refuses to accept, a PNG screenshot that's too heavy to email, an AVIF that an older app can't open.

Convertora's image converter re-encodes JPG, PNG, WebP, and AVIF files in any direction using your browser's own canvas encoder. Nothing is uploaded — the image is decoded, redrawn, and re-encoded entirely on your machine, which also means there's no file queue and no size-based pricing tier. You can convert up to 20 images at a time, each up to 50MB.

For lossy output formats there's a quality slider from 10 to 100 (the default of 85 is visually indistinguishable from the source for most photos). PNG output is always lossless, so the slider disappears when PNG is selected.

How to use it

1Drop one or more images into the upload area, or click to browse. JPG, PNG, WebP, and AVIF are accepted.
2Pick the output format: JPEG, PNG, WebP, or AVIF.
3For lossy formats, set the quality slider. 80–90 keeps photos looking identical; lower values shrink the file at a visible cost.
4Click Convert. Each image is decoded and re-encoded in the browser.
5A single image downloads directly with its original name and the new extension. Multiple images are bundled into one zip, since browsers block bursts of separate downloads.

Common use cases

Converting WebP images saved from the web into JPG or PNG for apps that don't support WebP.
Turning PNG screenshots into WebP to cut page weight before publishing.
Producing a PNG copy of a JPG so you can edit it losslessly from that point on.
Converting AVIF files received from a modern phone or website into a universally readable format.
Batch-converting a folder of mixed-format images into one consistent format before archiving.

Frequently asked questions

Tips

iPhone HEIC photos aren't accepted here — use the dedicated HEIC to JPG tool, which handles Apple's format specifically.
If your goal is a smaller file in the same format rather than a different format, the Compress Image tool gives you better control over the size/quality trade-off.
PNG-to-WebP at quality 90 typically cuts screenshot file sizes by half or more with no visible difference.

100% private — runs in your browser

Convertora processes everything on your device using JavaScript and WebAssembly. Files never leave your browser, are never uploaded to a server, and are never seen by us or anyone else. The moment you close the tab, the data is gone — there is no temporary cloud copy, no log entry, no retained backup.

Because the work happens locally, processing speed depends on your device — but there are no rate limits, no daily caps, and no file size restrictions beyond what your browser can handle in memory. No signup, no account, no payment. The tool works the same in incognito mode, on a corporate network, or after the page has loaded once, even with the network disconnected.