Image converter and resizer

Convert images to JPEG, PNG, or WebP and make them smaller, without uploading them anywhere.

Which format to choose

• JPEG for photos you’re emailing or uploading: every app and website accepts it. Quality around 80 is hard to tell from the original at a fraction of the size.
• PNG for screenshots, logos, and anything with sharp edges, text, or transparency. It’s lossless, so files are larger.
• WebP for websites: usually smaller than JPEG at the same quality, with transparency. Most current browsers can save it; if yours can’t, the tool says so.

HEIC photos from an iPhone

Safari on a Mac can open HEIC photos, so the tool converts them there. Other browsers can’t open HEIC yet. To have your iPhone take photos as JPEG instead, go to Settings → Camera → Formats and choose Most Compatible.

On a Mac without a website

1. Select the images in Finder, Control-click them, and choose Quick Actions → Convert Image.
2. Pick the format and size, and click Convert. The copies appear next to the originals.

Updated 25 September 2026