PaintOn
A paint app that lives in your browser
Draw with brushes, liquify photos, and mosaic out what you don't want seen — right in the tab. Free, no install, no sign-up, and your images never leave your device.
Three tools, one canvas
Everything runs on the same WebGL2 canvas, so you can sketch, warp, and censor in a single session — then save it as a PNG.
Draw
Brush, pencil, eraser, shapes, and fill — with selections you can move and transform, plus full undo/redo.
Start drawing →Liquify
Push, rotate, bloat, and pucker pixels to reshape a photo, and restore any area you went too far on.
Liquify an image →Mosaic
Pixelate or blur faces, plates, and private info in seconds — and un-mosaic regions you want back.
Mosaic an image →Small app, real editor
PaintOn is built like a native editor — a single GPU rendering pipeline, not a toy canvas demo.
- Transparent PNG export Edit on a transparent background and save it that way.
- Selection & transform Rectangular and freeform lasso selection with move and resize.
- Undo / redo history Compressed pixel snapshots keep history fast and memory-safe.
- Touch-first mobile UI Pinch zoom and multi-touch gestures on phones and tablets.
- GPU-accelerated (WebGL2) Brush, liquify, and mosaic all run on your graphics card.
- 8 languages English, 한국어, 日本語, Español, Français, Deutsch, 中文, Русский.
Your image never leaves your device
PaintOn has no upload step. Files you open are decoded and edited locally in your browser with WebGL2, so photos of documents, faces, or anything private stay exactly where they are — on your machine.
Frequently asked questions
Is PaintOn free?
Yes. PaintOn is completely free. There is no account, no sign-up, and nothing to install — it opens directly in your browser.
Are my images uploaded to a server?
No. All editing runs locally in your browser using WebGL2. Images you open or paste are processed on your device and are never uploaded.
What editing tools does PaintOn have?
Brush, pencil, and eraser; shapes and color fill; rectangular and freeform selection with move and transform; liquify with push, rotate, bloat, pucker, and restore; pixel and blur mosaic; undo/redo history; and PNG export including transparent backgrounds.
Does PaintOn work on phones and tablets?
Yes. PaintOn has a touch-friendly mobile UI with pinch zoom and multi-touch gestures, and it also works on desktop browsers.