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Laminar vs Langfuse: catalog facts
Laminar	Langfuse
Free Free and open source under Apache 2.0; a managed platform is offered at laminar.sh.	Freemium Open source for self-hosting, with a hosted version that can be started for free.
Web, Self-hosted	Web, Self-hosted
Automatic tracing for many agent frameworks and model APIs Evals that run locally or in CI with a comparison UI	Tracing, prompt management and evaluation in one tool Can be self-hosted or used as a hosted service
Requires adding its SDK to your application Self-hosting involves running several services including ClickHouse	Requires instrumenting your application with its SDK Self-hosting means running and maintaining the server yourself
Self-hosted, Hosted service	Self-hosted, Hosted service
Open source	Open source
License: Apache-2.0	License not stated
Not stated if an account is needed	Not stated if an account is needed
Not stated if it works offline	Not stated if it works offline
Official website Full listing and sources Checked October 2, 2026	Official website Full listing and sources Checked September 26, 2026

Catalog facts only. Anything “not stated” is unconfirmed. Check full listings for details.