Image Converter
Drop in one image or a hundred and pick a format. Everything is converted on your device — nothing is uploaded — and you can download files one by one or as a ZIP.
Which format should I choose?
JPEG is the most compatible choice for photos: every app, website and printer accepts it. It has no transparency, so transparent areas are filled with the background color you pick. PNG is lossless and keeps transparency — best for screenshots, logos and graphics with text, but large for photos.
WebP is typically 25–35% smaller than JPEG at similar quality and supports transparency; all current browsers display it. AVIF is smaller still, often half the size of JPEG, but encoding is slower and a few older apps can't open it. Your browser writes AVIF only if it has an AVIF encoder — Chrome, Edge and Firefox do; Safari currently doesn't.
Privacy and what gets changed
Images are decoded and re-encoded by your browser's own canvas, on your device. Nothing is uploaded. Re-encoding also removes metadata such as camera details and GPS location, which is useful before sharing photos. Animated GIFs and WebPs are converted as a single still frame.
Questions
How do I convert PNG to JPG without a white or black background problem?
Choose JPEG and set “Background for transparency” to the color you want behind transparent areas — white by default. PNG and WebP keep transparency, so the setting only appears for JPEG.
Can I convert HEIC iPhone photos?
Only in browsers that can decode HEIC, which today is mainly Safari on Mac and iPhone. Other browsers will show a message on the file. On iPhone you can avoid HEIC by setting Settings → Camera → Formats → Most Compatible, or share photos as JPEG from the Photos app.
What quality setting should I use?
80–85 is a good default for photos: visibly identical to the original for most images at a fraction of the size. Go to 90+ for print or images with fine text, and 60–75 for thumbnails. PNG is lossless, so it has no quality setting.
Why did my file get bigger?
Converting a compressed photo to PNG, or re-saving a small, already-optimised JPEG at high quality, can increase the size. The percentage next to each file shows the change; try WebP or AVIF, or lower the quality.
Is there a limit on how many images I can convert?
No fixed limit. Images are processed one at a time on your device, so very large batches are limited only by your computer's memory. The ZIP stores files without re-compressing them, so it builds quickly.