Browserbase vs LangChain: who uses which
Customers, public proof and the companies that use both.
On usedby, 19 companies use Browserbase and 35 use LangChain. 1 company uses both, including Clay. Browserbase leads among the Artificial Intelligence companies on usedby that use either tool, LangChain among the DevTools & Infrastructure companies.Latest check Oct 14, 2026: 54 of 54 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, LangChain, or both
Every company with a public proof for at least one of the two tools.
18
use only Browserbase
1
company uses both
34
use only LangChain
18 companies use only Browserbase, 34 use only LangChain and 1 uses both, out of the 53 companies on usedby that use at least one of them.
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 | First public proof, LangChain |
|---|---|---|
 Clay | On or before Oct 2025 | On or before Oct 2025 |
By industry
Which tool the companies on usedby use, by industry. Shares of the companies on usedby that use Browserbase, LangChain or both: a share of the companies on usedby, not of the market.
Browserbase onlyBothLangChain only
More common with Browserbase
- Artificial Intelligence7 of the 8 Artificial Intelligence companies on usedby that use either tool use Browserbase.
More common with LangChain
- DevTools & Infrastructure4 of the 5 DevTools & Infrastructure companies on usedby that use either tool use LangChain.
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.
BrowserbaseLangChainWhat customers report
Results as the vendor or the customer published them, with the source and the date.
Questions about Browserbase and LangChain
Which is used more, Browserbase or LangChain?
LangChain has more customers on usedby: 35 against 19 for Browserbase. Browserbase leads among the Artificial Intelligence companies on usedby that use either tool, LangChain among the DevTools & Infrastructure companies.
Do companies use both Browserbase and LangChain?
Yes. 1 company uses both on usedby, including Clay.
Who uses Browserbase?
19 companies on usedby, each with the public page that shows it. See who uses Browserbase.
Who uses LangChain?
35 companies on usedby, each with the public page that shows it. See who uses LangChain.
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 three proof levels: confirmed, 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.