Automatic line-art coloring
Automatically colors line art through the service’s main line-art coloring workflow.
Petalica Paint
Petalica Paint is a web service for automatically coloring line art and tracing line drawings from photographed images. The home page says it can be used under the stated terms for commercial and noncommercial work, but it is scheduled to end on 2025-07-31 at 16:00 JST.
Petalica Paint overview
Petalica Paint is a web-based line-art auto-coloring service from pixiv. It is designed to help users turn sketches and line drawings into colored illustrations, and the site also describes a tracing tool for extracting line art from photographed drawings or other images.
The product originated as PaintsChainer and was later renamed Petalica Paint. The site indicates that the service has been updated over time with new drawing styles and that its usage terms were revised to allow commercial use under the stated conditions. The current home page also shows a service termination notice, stating that all services will end on 2025-07-31 at 16:00 JST.
Core capabilities
Line tracing from images
Includes a line-drawing tool for tracing line art from a hand-drawn image or other photographed image.
Selectable drawing styles
Supports drawing styles, with the home page noting a new style called "Canola" and describing styles that can shade and light areas.
Web-based access
Runs as a web service, so the workflow is accessed through the Petalica Paint site rather than a local desktop application.
Commercial-use allowance
Terms published for the service state that it may be used for commercial and noncommercial use when the terms are accepted and followed.
Practical use cases
Auto-color line art
Turn a black-and-white sketch or manga-style line drawing into a colored version without manually painting every area.
Extract lines from photos
Trace line art from a photographed drawing or other image when the source is not already a clean digital line file.
Test style variants
Try different drawing styles while preparing concept art or illustrative drafts, especially when exploring shade and lighting variations.
Use under the stated terms
Use the service for commercial or noncommercial projects, provided the terms of use are accepted and followed.
Pros and Cons
Pros
- Provides automatic line-art coloring in a browser-based service.
- Includes a tracing tool for creating line art from photographed drawings or other images.
- Supports more than one drawing style, according to the home page.
- The terms state that commercial use is allowed when the terms are followed.
Cons
- The home page announces that all services will terminate on 2025-07-31 at 16:00 JST.
- The provided sources do not confirm pricing, export formats, or broader workflow integrations.
FAQ
What does Petalica Paint do?
Petalica Paint is a web service for automatically coloring line art. The site also notes a line-drawing tool that lets you trace line art from a photographed drawing or other image.
Can it be used for commercial work?
The home page states that users can use the service for commercial use under the terms of use. The terms also say the service may be used for both commercial and noncommercial use when the terms are accepted and followed.
Is Petalica Paint still available?
The service is scheduled to end on 2025-07-31 at 16:00 JST. After that date, all functions and services will no longer be available.
How much does it cost?
The pricing page could not be accessed from the provided sources, so there is no confirmed pricing information to report.
Quick Facts
- Category
- AI illustration tool
- Product type
- Web service
- Primary function
- Automatic line-art coloring
- Additional tool
- Line tracing
- Brand origin
- pixiv / Preferred Networks
- Status
- Service ends on 2025-07-31 at 16:00 JST
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