# Kroki vs PlantUML (slim)

> PlantUML scores 66.9 (B) to Kroki's 59.2 (C) for diagrams as code. Prices, MCP, x402, uptime and agent notes side by side.

- Full: https://www.anchorterminal.com/compare/kroki-vs-plantuml.md (~2,400 tokens) · this version ~530 tokens · JSON https://www.anchorterminal.com/compare/kroki-vs-plantuml.json · canonical https://www.anchorterminal.com/compare/kroki-vs-plantuml
- Index: https://www.anchorterminal.com/llms.txt · API: https://www.anchorterminal.com/api/v1/index.json · Updated: 2026-10-09

PlantUML scores 66.9 (B) on agent readiness against Kroki's 59.2 (C), and leads in 4 of 7 scored categories. Kroki leads on security & auth and maintenance & community. Both do diagrams as code.

- Kroki: C 59.2, rank #558 of 950 · https://www.anchorterminal.com/tools/kroki.min.md
- PlantUML: B 66.9, rank #270 of 950 · https://www.anchorterminal.com/tools/plantuml.min.md
- Kroki, good for Agents that write diagrams in several text formats and want one render endpoint, on a private network or through the public instance for non-sensitive diagrams. Ahead on Security & auth, 56 against 50; Maintenance & community, 86 against 73.
- PlantUML, good for Agents that write sequence, class, state, component, deployment, Gantt or C4 diagrams as text and render them locally or in CI. Ahead on Reliability, 83 against 74; Schema & documentation, 65 against 48; Agent ergonomics, 78 against 70; Transparency & trust, 73 against 62.

| Category | Kroki | PlantUML |
| --- | --- | --- |
| Reliability (16%) | 74 | 83 |
| Performance (10%) | pending | pending |
| Schema & documentation (13%) | 48 | 65 |
| Agent ergonomics (13%) | 70 | 78 |
| Security & auth (14%) | 56 | 50 |
| Payments & pricing (10%) | 60 | 60 |
| Task success (10%) | pending | pending |
| Maintenance & community (7%) | 86 | 73 |
| Transparency & trust (7%) | 62 | 73 |

| Fact (where they differ) | Kroki | PlantUML |
| --- | --- | --- |
| Kind | HTTP API | SDK + MCP |
| Vendor | Yuzu tech | PlantUML project (Arnaud Roques) |
| Transports | HTTP |  |
| Licence | MIT | GPL-3.0-or-later |
| Last release | 2026-10-05 | 2026-09-05 |
| Popularity | 4.4k stars | 13k stars, 207 npm/wk |