# AI Sketch to Image and Line Art Colorizer | Clip Studio > Draw in your browser, then let AI finish a sketch, colorize line art under the ink, or fill a brushed area. Every result lands on a new layer you can hide. Canonical page: https://clipstudio.ai/paint-lab ## What it is Paint Lab is an AI paint studio in the browser: pressure brushes, layers, and selections, plus AI actions that finish a sketch, colorize line art, fill a brushed area, edit with words, remove a background, or upscale. Drawing is free. AI actions use your monthly generation allowance. ## Your lines, untouched - Colorize goes under the ink: Color lands on a new layer below your line art. The ink layer is never written, and it stays on top set to multiply. - Fill stays inside the mask: Generative fill and selection edits are trimmed to the area you brushed. Everything outside it stays exactly as it was. - One layer, one undo: Hide the AI layer to get your drawing back, or undo once to remove it. Nothing you drew is deleted. ## In the studio - Symmetry and perspective rulers: Mirror every stroke vertically, horizontally, in four, or radially in 2 to 12 segments, or snap straight lines to 1-, 2-, or 3-point perspective. Guides never show up in exports. - Reference images: Float up to 6 photos or sketches over the workspace, fade or flip them, and pick your brush color straight from them. References stay on your device and are never uploaded. - Layer groups: Fold layers into groups up to 3 levels deep, then hide, fade, lock, or blend them together. Groups do not count toward your layer limit. - Train your own style: Pick 8 to 20 of your own drawings and Paint Lab learns your look, so Finish sketch and Edit with words can work in it. Training is quoted first and uses your monthly generation allowance. ## How it works ### Draw or import Sketch with pressure brushes on layers, or import a PNG, JPG, or layered PSD you already have. ### Pick an AI action Finish the sketch, colorize the line art, fill a brushed area, or edit with words. The size and settings show before it runs. ### Keep what works The result lands as a new layer. Compare it with your drawing, hide it, or paint on top of it. ### Export or animate Download a PNG or layered PSD, or send the painting to Video Lab as the first frame of a clip. ## FAQs ### Is drawing free? Yes. Brushes, layers, selections, and PNG or PSD export are free with a Clip Studio account. AI actions such as Finish sketch, Colorize, and Generative fill use your monthly generation allowance, and each one shows its size and settings before it runs. ### Does colorize change my line art? No. Colorize paints flat color on a new layer under your ink. The ink layer is never written: it stays on top, set to multiply, so every line keeps its exact position and weight. Hide the color layer to get your original back. ### Can I use a stylus? Yes. Paint Lab reads pen pressure and tilt from Apple Pencil in iPad Safari and from pressure-sensitive pens in desktop browsers. Once a pen touches the canvas, fingers only pan, zoom, and rotate, so a resting palm leaves no marks. ### Can I turn my painting into a video? Yes. Animate it sends your flattened painting to Video Lab as the first frame of an image-to-video clip. Video Lab quotes the clip before anything renders, and your canvas stays open. ### Can I start from a sketch or reference I already have? Yes. Import a PNG, JPG, or layered PSD, and PSD layers come in as separate layers ready to colorize or finish. To paint from a photo instead, float up to 6 reference images over the workspace and pick colors from them. References stay in your browser and are never uploaded. ### Can Paint Lab learn my own drawing style? Yes. Train your own style from 8 to 20 of your own drawings. Training is quoted before it runs and uses your monthly generation allowance; if it does not finish, nothing is used. Once it is ready, Finish sketch and Edit with words can work in your style, and the result still lands on a new layer. ## Related - [Image Lab](https://clipstudio.ai/image-lab.md) - [Video Lab](https://clipstudio.ai/video-lab.md) - [AI image models](https://clipstudio.ai/ai-image-models.md) - [Character Films](https://clipstudio.ai/character-films.md) - [Topic Shorts](https://clipstudio.ai/topic-shorts.md) - [Director](https://clipstudio.ai/director.md)