head to head · open source
Dify vs Upsonic
Dify has 156,215 GitHub stars, 24,668 forks, 1,067 open issues and last shipped today. Upsonic has 7,957 stars, 744 forks, 33 open issues and last shipped 3 months ago. Dify leads on adoption by 1,863% (156,215 vs 7,957 stars). Dify is written in TypeScript under a custom or non-standard licence; Upsonic is written in Python under MIT. Dify has attracted 16% as many forks as stars, Upsonic 9%. Dify was the more recently maintained of the two, and both are self-hostable with no licence fee. The two share 2 topic tags (agent, claude), so they are genuine substitutes rather than adjacent tools.
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
| Dify | Upsonic | |
|---|---|---|
| GitHub stars | ★ 156K | ★ 8.0K |
| License | Custom / other | MIT |
| Written in | TypeScript | Python |
| Last push | 2026-09-18 | 2026-06-18 |
| Forks | ⑂ 25K | ⑂ 744 |
| Self-hosting | Yes | Yes |
| Data ownership | Your server | Your server |
pick Dify if
- You weight community size — 156K stars and counting
- You want the Custom / other license terms
- Your stack matches TypeScript
- You value the larger contributor base for long-term maintenance
pick Upsonic if
- You want the Upsonic feature set and don't need the biggest community
- You prefer the MIT license terms
- Your stack matches Python
- You evaluated both and Upsonic fits your workflow better
About Dify
Dify is an open source LLM application development platform built in TypeScript. It provides a visual interface for designing, testing, and deploying AI workflows, RAG pipelines, and agentic systems without writing extensive code. The platform lives in the generative AI development ecosystem and targets teams needing to move from prototype to production using consistent tooling across environments.
About Upsonic
Upsonic is an MIT licensed Python framework for building autonomous AI agents and traditional tool using agents, aimed at Python developers and teams who want to run agents on their own machines and connect them to their own models, tools, and documents.
read the full Upsonic overview →
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Frequently asked questions
Is Dify or Upsonic more popular?
Dify has 156,215 GitHub stars and Upsonic has 7,957. Dify has the larger community by that measure.
Are Dify and Upsonic free?
Both are open source. Dify has no licence declared in this registry, and Upsonic is licensed under MIT. Both are free to self-host.
What is the difference between Dify and Upsonic?
Dify is written in TypeScript and Upsonic in Python. The practical differences are community size, licence terms, language stack and release cadence — all compared in the table above.
Which should I choose, Dify or Upsonic?
Choose Dify if you want the larger community (156,215 stars) or its Custom / other licence terms. Choose Upsonic if its feature set, stack or MIT licence fits better. Both are self-hostable.