PaintLasso

A free online animation maker with onion skin

Build frame-by-frame animation right in your browser. PaintLasso's onion skin shows the previous and next frames as ghosts so each drawing lines up with the last, while an adjustable FPS and a timeline let you control the timing. When it's ready, make a GIF from your drawings — or export a sprite sheet or PNG sequence.

Onion skin animation, online and in the browser

Onion skin is the core of clean frame-by-frame work. PaintLasso shows the previous and next frames as ghosted layers beneath your current frame, so you can see exactly where a line, limb, or shape was a moment ago and where it's heading next. That makes it far easier to keep motion consistent instead of redrawing blind.

Everything lives on a timeline you can scrub through, and every frame supports full layers — so you can separate a character from its background, ink over rough sketches, and edit any frame without flattening your work.

Make a GIF from your drawings, plus sprite sheets and PNG sequences

When your animation is ready, adjust the FPS to dial in the playback speed, then export. Choose an animated GIF to share a finished loop, a sprite sheet for game engines and dev tools, or a PNG sequence when you need each frame as its own file.

Because it's all browser-based and GPU-accelerated, you go from blank timeline to a downloadable GIF without installing anything or signing up for a desktop app.

How to use it

  1. Draw your frames. Add frames on the timeline and draw each one on a full set of layers, just like a still illustration.
  2. Turn on onion skin. Switch on the onion skin to see the previous and next frames as ghosts, so every movement flows from the one before it.
  3. Set the FPS and export. Adjust the frame rate to get the speed you want, then export an animated GIF, a sprite sheet, or a PNG sequence.

FAQ

Is this online animation maker free?

Yes. PaintLasso runs in your browser with no download and no install, and you can animate frame by frame, use onion skin, and export a GIF for free.

How do I make a GIF from my drawings?

Draw each frame on the timeline, set the FPS to control the speed, then export an animated GIF. You can also export a sprite sheet or a PNG sequence of the same frames.

What does onion skin do?

Onion skin shows the previous and next frames as faint ghosts behind the frame you're drawing, so you can match positions and keep motion smooth from one frame to the next.