On usedby, 9 companies use Cline and 17 use Warp. 1 company uses both, including Amazon. Warp leads among the DevTools & Infrastructure companies on usedby that use either tool.Latest check Oct 6, 2026: 26 of 26 public lines checked. Counts include every proof level, job-post signals included. Companies named on both have a confirmed or observed line on each side.
Who uses Cline, Warp, or both
Every company with a public proof for at least one of the two tools.
8
use only Cline
1
company uses both
16
use only Warp
8 companies use only Cline, 16 use only Warp and 1 uses both, out of the 25 companies on usedby that use at least one of them.
Who uses both
Companies with a confirmed or observed line on both tools.
| Company |
|---|
 Amazon |
Side by side
Facts from our data and from each vendor's public pages. Each line says where it comes from.
Cline
WarpWhat customers report
Results as the vendor or the customer published them, with the source and the date.
Cline
No reviewed story for Cline yet.
Warp
a typical turnaround of 3 to 10 minutes from Slack @mention to a clickable pull request
Rectangle Health
Vendor case study, warp.dev, published Jun 22, 2026
Questions about Cline and Warp
Which is used more, Cline or Warp?
Warp has more customers on usedby: 17 against 9 for Cline.
Do companies use both Cline and Warp?
Yes. 1 company uses both on usedby, including Amazon.
Who uses Cline?
9 companies on usedby, each with the public page that shows it. See who uses Cline.
Who uses Warp?
17 companies on usedby, each with the public page that shows it. See who uses Warp.
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 is named as using both tools when its lines on both are confirmed or observed.