Browserbase vs Kernel: who uses which
Customers, public proof and the companies that use both.
On usedby, 21 companies use Browserbase and 14 use Kernel. 2 companies use both, including Vercel and Coframe. Browserbase leads among the Artificial Intelligence companies on usedby that use either tool.Latest check Oct 25, 2026: 35 of 35 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, Kernel, or both
Every company with a public proof for at least one of the two tools.
19
listed for Browserbase only
2
companies use both
12
listed for Kernel only
On usedby, 19 companies are listed for Browserbase only, 12 are listed for Kernel only and 2 use both, out of the 33 companies listed for at least one. An absent listing does not prove non-use.
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 |
|---|---|
 Vercel | On or before Feb 2026 |
 Coframe | On or before Feb 2026 |
Side by side
Facts from our data and from each vendor's public pages. Each line says where it comes from.
Browserbase
KernelWhat customers report
Results as the vendor or the customer published them, with the source and the date.
Browserbase
No reviewed story for Browserbase yet.
Kernel
cutting browser cold starts by 333x
Stably
Vendor case study, kernel.sh, published May 26, 2026
Questions about Browserbase and Kernel
Which is used more, Browserbase or Kernel?
Browserbase has more customers on usedby: 21 against 14 for Kernel.
Do companies use both Browserbase and Kernel?
Yes. 2 companies use both on usedby, including Vercel and Coframe.
Who uses Browserbase?
21 companies on usedby, each with the public page that shows it. See who uses Browserbase.
Who uses Kernel?
14 companies on usedby, each with the public page that shows it. See who uses Kernel.
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.