Codeium vs Replit: who uses which
Customers, public proof and the companies that use both.
On usedby, 18 companies use Codeium and 31 use Replit. 1 company uses both, including Zillow. Codeium leads among the IT Services & System Integration companies on usedby that use either tool.Latest check Oct 7, 2026: 30 of 49 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 Codeium, Replit, or both
Every company with a public proof for at least one of the two tools.
17
use only Codeium
1
company uses both
30
use only Replit
17 companies use only Codeium, 30 use only Replit and 1 uses both, out of the 48 companies on usedby that use at least one of them.
Who uses both
Companies with a confirmed or observed line on both tools.
| Company |
|---|
 Zillow |
By industry
Which tool the companies on usedby use, by industry. Shares of the companies on usedby that use Codeium, Replit or both: a share of the companies on usedby, not of the market.
Codeium onlyBothReplit only
More common with Codeium
- IT Services & System Integration4 of the 5 IT Services & System Integration companies on usedby that use either tool use Codeium.
Source: confirmed and observed usedby lines. Job-post signals, the weakest proof level, are left out of these shares.
Side by side
Facts from our data and from each vendor's public pages. Each line says where it comes from.
Codeium
ReplitWhat customers report
Results as the vendor or the customer published them, with the source and the date.
Codeium
No reviewed story for Codeium yet.
Replit
Eliminating the speaker review agency saved SaaStr $200,000+ annually
SaaStr
Vendor case study, replit.com, published Feb 1, 2025
Questions about Codeium and Replit
Which is used more, Codeium or Replit?
Replit has more customers on usedby: 31 against 18 for Codeium.
Do companies use both Codeium and Replit?
Yes. 1 company uses both on usedby, including Zillow.
Who uses Codeium?
18 companies on usedby, each with the public page that shows it. See who uses Codeium.
Who uses Replit?
31 companies on usedby, each with the public page that shows it. See who uses Replit.
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.