Compress JPEG/PNG, convert to modern WebP or AVIF, resize, rotate, flip and batch-download as a ZIP — right here in your browser.
Format & compression
Resize & orientation
Yes. Every feature — compression, format conversion, resizing, batch ZIP download — is unlocked with no daily cap, no watermark and no account required. It's free forever.
No. All processing happens locally in your browser using the Canvas API — your photos never leave your device, so there's nothing to upload and nothing for us to see or store.
There's no hard limit — it depends on your device's memory, since everything is processed locally. Most photos, even a few hundred at once, work fine on a modern computer or phone.
Yes, once the page has loaded. Load the tab while online first; after that, compression, resizing and conversion all run without an internet connection, including the batch ZIP download.
AVIF encoding depends on your browser's built-in support. If your browser can't encode AVIF, the tool tells you so next to that image and you can pick WebP or JPEG instead.
A free tool by Kaira Prime — an independent software studio. Built local-first, like everything we make. Every feature. No limits. No sign-up. No watermark. Nothing uploaded. Free forever. More free, in-browser tools: kairaprime.com/tools →