Browserbase vs Langfuse: who uses which
Customers, public proof and the companies that use both.
On usedby, 25 companies use Browserbase and 17 use Langfuse. 1 company uses both, including Ramp. Browserbase leads among the Artificial Intelligence companies on usedby that use either tool, Langfuse among the Fintech & Payments companies.Latest check Nov 12, 2026: 42 of 42 public lines checked. Counts include every proof level, job-post signals included. A company on both tools counts at any proof level, and a job post on one side is marked as such.
Who uses Browserbase, Langfuse, or both
Every company with a public proof for at least one of the two tools.
24
listed for Browserbase only
1
company uses both
16
listed for Langfuse only
On usedby, 24 companies are listed for Browserbase only, 16 are listed for Langfuse only and 1 uses both, out of the 41 companies listed for at least one. An absent listing does not prove non-use.
Where it lands
Recently publicly listed customers
Who uses both
Companies with a public line on both tools, at any proof level: the strongest proofs come first, and a job post is marked.
| Company | First public proof, Browserbase |
|---|---|
 Ramp | On or before May 2026 |
By industry
Which tool the companies on usedby use, by industry. Shares of the companies on usedby that use Browserbase, Langfuse or both: a share of the companies on usedby, not of the market.
Listed for Browserbase onlyBothListed for Langfuse only
More common with Browserbase
- Artificial Intelligence7 of the 9 Artificial Intelligence companies on usedby that use either tool use Browserbase.
- DevTools & Infrastructure4 of the 5 DevTools & Infrastructure companies on usedby that use either tool use Browserbase.
More common with Langfuse
- Fintech & Payments4 of the 6 Fintech & Payments companies on usedby that use either tool use Langfuse, 1 of them alongside Browserbase.
Source: every usedby line, from confirmed proofs to job-post signals (the weakest proof level).
Side by side
Facts from our data and from each vendor's public pages. Each line says where it comes from.
Vendor facts checked: Browserbase, 3 of 5; Langfuse, 0 of 5. Missing facts remain unverified, not absent features.
BrowserbaseLangfuseQuestions about Browserbase and Langfuse
Which is used more, Browserbase or Langfuse?
Browserbase has more customers on usedby: 25 against 17 for Langfuse. Browserbase leads among the Artificial Intelligence companies on usedby that use either tool, Langfuse among the Fintech & Payments companies.
Do companies use both Browserbase and Langfuse?
Yes. 1 company uses both on usedby, including Ramp.
Who uses Browserbase?
25 companies on usedby, each with the public page that shows it. See who uses Browserbase.
Who uses Langfuse?
17 companies on usedby, each with the public page that shows it. See who uses Langfuse.
How does usedby count customers?
A company counts when a public page shows it: a vendor's customer page, a case study, a press release or a job post, most saved with a dated capture. Every line is a customer, at one of four proof levels: confirmed, declared by the company itself, observed or signal (a job post, the weakest). A company counts as using both tools when it has a line on each, at any level; the list shows the strongest proofs first and marks job posts.