head to head · open source
Multica vs symphony
Multica has 50,346 GitHub stars, 6,512 forks, 1,538 open issues and last shipped today. symphony has 2,940 stars, 507 forks, 2 open issues and last shipped 9 days ago. Multica leads on adoption by 1,612% (50,346 vs 2,940 stars). Multica is written in Go under a custom or non-standard licence; symphony is written in Java under AGPL-3.0. Multica has attracted 13% as many forks as stars, symphony 17%. Multica was the more recently maintained of the two, and both are self-hostable with no licence fee.
Two open source projects, one decision. Both are free and self-hostable — the differences are community size, license terms, language stack and release pace.
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Side by side
| Multica | symphony | |
|---|---|---|
| GitHub stars | ★ 50K | ★ 2.9K |
| License | Custom / other | AGPL-3.0 |
| Written in | Go | Java |
| Last push | 2026-09-18 | 2026-09-09 |
| Forks | ⑂ 6.5K | ⑂ 507 |
| Self-hosting | Yes | Yes |
| Data ownership | Your server | Your server |
pick Multica if
- You weight community size — 50K stars and counting
- You want the Custom / other license terms
- Your stack matches Go
- You value the larger contributor base for long-term maintenance
pick symphony if
- You want the symphony feature set and don't need the biggest community
- You prefer the AGPL-3.0 license terms
- Your stack matches Java
- You evaluated both and symphony fits your workflow better
About Multica
Multica is an open source project management platform designed for teams combining human developers and AI coding agents. It operates in the AI development ecosystem, providing a unified workspace where agents function as first class collaborators alongside people. The platform solves the problem of fragmented agent workflows: when using multiple AI tools like Claude Code, Codex, or Cursor in separate terminal sessions, context is lost between runs, coordination becomes manual, and oversight is difficult. Multica centralizes agent execution, assignment, and review into a single system where work flows from issue …
read the full Multica overview →
About symphony
Symphony is a community platform implemented in Java under the AGPL 3.0 license. It combines a discussion forum, a Q&A site, a social network with sharing, friends, and games, and blog like publishing in one system. The project lives in the Java ecosystem and is published through the B3log website and official discussion area.
read the full symphony overview →
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Frequently asked questions
Is Multica or symphony more popular?
Multica has 50,346 GitHub stars and symphony has 2,940. Multica has the larger community by that measure.
Are Multica and symphony free?
Both are open source. Multica has no licence declared in this registry, and symphony is licensed under AGPL-3.0. Both are free to self-host.
What is the difference between Multica and symphony?
Multica is written in Go and symphony in Java. The practical differences are community size, licence terms, language stack and release cadence — all compared in the table above.
Which should I choose, Multica or symphony?
Choose Multica if you want the larger community (50,346 stars) or its Custom / other licence terms. Choose symphony if its feature set, stack or AGPL-3.0 licence fits better. Both are self-hostable.