GIMP
100 · HealthyRaster image editor for photo retouching, compositing and graphic design, with layers, masks and plug-ins.
Open source Design & image editing
Krita
96 · HealthyDigital painting and image editing app with brushes, layers, animation and color management.
Penpot
92 · HealthyBrowser-based design and prototyping tool for product teams, built on open standards such as SVG, CSS and HTML.
Mermaid
89 · HealthyGenerates flowcharts, sequence diagrams, Gantt charts and more from text definitions.
PhotoCraft
83 · HealthyPhotoshop-style desktop image editor written in Rust, with layers, masks, adjustment layers and native PSD files.
draw.io
67 · StableDiagram editor for flowcharts, network diagrams, org charts and UML, in the browser or on the desktop.
OpenPencil
66 · StableAI-native editor for designing interfaces, positioned as a Figma replacement.
Excalidraw
65 · StableVirtual whiteboard for hand-drawn style diagrams and sketches, with real-time collaboration.
Graphite
64 · StableNode-based 2D editor for vector and raster graphics, procedural design and motion graphics.
Mermaid
Generates flowcharts, sequence diagrams, Gantt charts and more from text definitions.
Alternative to
Will it still be around?
Healthy
Score 89/100
Can a business use it freely?
Free to use
MIT · open source (permissive)
Health score: 89/100
Healthy · activity, bus factor and issue responsiveness, from GitHub
Score v2 · How it works
Activity
45% weight100/100
- Last commit yesterday (100/100).
- 2497 commits in the past 12 months (100/100).
- 50+ releases in the past 12 months (100/100).
Bus factor
30% weight90/100
- Top contributor wrote 33% of the last 92 commits (past 12 months).
- 8 people authored those commits.
Responsiveness
25% weight67/100
- 62% of all issues are closed (1485 open, 2377 closed) (53/100).
- 22 of 29 recent issues got a reply or were closed (76/100).
License
Free to use
MIT · Open source (permissive)
What you need to do
Use, change, host and sell it for any purpose, commercial included, with no license to buy. Keep the copyright notice.
MIT License · Open source (permissive). OSI-approved license with few conditions beyond keeping the copyright notice.
Detected by GitHub as MIT.
GitHub activity
- Stars
- 91k
- Forks
- 9.3k
- Commits, 12 mo
- 2.5k
- last yesterday
- Releases, 12 mo
- 50+
- last 8 days ago
- Contributors
- 365
- 8 in last 92 commits
- Open issues
- 1.5k
- 2.4k closed
Snapshot from 2026-10-09 · Funding: github, github
Top contributors
Points for pull requests merged into Mermaid and reviews of them since 11 May 2026 (older history is still loading). Building something another user asked for earns more. 42 people have points on Mermaid in all.
