Image upscale · On your computer
Make photos bigger and sharper — on your computer
Up to 4× larger without uploading to a website. Phone version coming soon.
Cosven upscales on your computer, not on someone else's servers. No subscription, no sending full-size files online.
01Example results
Real edits on your device
The kinds of files you get — cutouts, ZIP batches, upscaled images — all created on your phone or computer.
photo_4x.png
LocalA small JPEG enlarged 4× on your computer.
anime_4x.png
LocalAnime art sharpened and enlarged locally.
screenshot_4x.png
LocalScreenshots blown up for slides or print.
02Use cases
Where editors start
- Sharpen compressed social photos before print
- Enlarge anime and illustration files
- Upscale screenshots for presentations
- Batch jobs on your computer without online limits
- Keep full-resolution files private
03People like you
Why they want local AI
“I upscale anime art locally because I do not want full-size files on random websites.”
“No waiting in an online queue — it runs on my own computer.”
04FAQ
Common questions
Yes on your computer, after the AI downloads once. Everything stays on your hard drive.
Phone upscale is coming soon. Background removal on your phone works today.
Well-known free upscale AI (Real-ESRGAN). Details on our models page.
Try Cosven on your device
Background removal works on your phone today. Full toolkit on PC. Your photos never leave your device.