head to head · open source
Dify vs langtrace
Dify has 156,167 GitHub stars, 24,658 forks, 1,067 open issues and last shipped yesterday. langtrace has 1,231 stars, 127 forks, 2 open issues and last shipped 10 months ago. Dify leads on adoption by 12,586% (156,167 vs 1,231 stars). Dify is written in TypeScript under a custom or non-standard licence; langtrace is written in TypeScript under AGPL-3.0. Dify has attracted 16% as many forks as stars, langtrace 10%. Dify was the more recently maintained of the two, and both are self-hostable with no licence fee. The two share 3 topic tags (ai, gpt, llm), 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 | langtrace | |
|---|---|---|
| GitHub stars | ★ 156K | ★ 1.2K |
| License | Custom / other | AGPL-3.0 |
| Written in | TypeScript | TypeScript |
| Last push | 2026-09-17 | 2025-11-17 |
| Forks | ⑂ 25K | ⑂ 127 |
| 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 langtrace if
- You want the langtrace feature set and don't need the biggest community
- You prefer the AGPL-3.0 license terms
- Your stack matches TypeScript
- You evaluated both and langtrace 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 langtrace
Langtrace is an open source, OpenTelemetry based end to end observability tool for LLM applications that captures and analyzes real time traces, evaluations and metrics across LLM APIs, vector databases and LLM frameworks, and it is aimed at developers and LLMOps teams who need to see what their LLM backed applications are actually doing in production.
read the full langtrace overview →
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Frequently asked questions
Is Dify or langtrace more popular?
Dify has 156,167 GitHub stars and langtrace has 1,231. Dify has the larger community by that measure.
Are Dify and langtrace free?
Both are open source. Dify has no licence declared in this registry, and langtrace is licensed under AGPL-3.0. Both are free to self-host.
What is the difference between Dify and langtrace?
Dify is written in TypeScript and langtrace in TypeScript. 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 langtrace?
Choose Dify if you want the larger community (156,167 stars) or its Custom / other licence terms. Choose langtrace if its feature set, stack or AGPL-3.0 licence fits better. Both are self-hostable.