alternative · langsmith
Open Source LangSmith Alternatives
Open source LangSmith alternatives that trace, evaluate, and debug LLM applications on your own infrastructure — capturing prompts, traces, and evaluations without LangSmith's per-seat pricing or sending production data to a hosted-only service.
Tools that replace LangSmith
4 tools// open source tools you can use instead
llm-observability
Arize Phoenix_
Self-hosted LLM tracing and evals — a LangSmith alternative.
11.7k
stars
246
contributors
today
last commit
1.2k
forks
Python
language
3 yrs
age
llm-app-builders
Dify_
Build LLM apps and agents with RAG and LLMOps.
157.7k
stars
1.5k
contributors
today
last commit
24.9k
forks
TypeScript
language
3 yrs
age
llm-observability
Langfuse_
Open source LLM observability — a LangSmith alternative.
35.3k
stars
217
contributors
today
last commit
3.9k
forks
TypeScript
language
3 yrs
age
llm-observability
Opik_
Open source LLM tracing and evaluation — self-hosted.
22.3k
stars
169
contributors
today
last commit
1.8k
forks
Python
language
3 yrs
age