Clerk vs Firebase Authentication:Which is searched more?
In August 2026, Clerk had more branded searches than Firebase Authentication among authentication APIs worldwide. Clerk was estimated to have 24.9K branded searches compared to Firebase Authentication’s 9.9K, and held a 1.3% Share of Search versus Firebase Authentication’s 0.5%. These are worldwide searches for English-language branded terms.
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Which is more popular in search, Clerk or Firebase Authentication?
Compare the services developers add sign in with. Branded searches tell you how often people look for a brand by name or related terms. Comparing these searches across competitors helps you see how popular each brand is over time.
Share of Search by month for Clerk, Firebase Authentication. The figures are in the table below the chart.
View monthly share of search table
| Month | Clerk | Firebase Authentication |
|---|---|---|
| Oct 2025 | 2.5% | 2.2% |
| Nov 2025 | 2.1% | 1.9% |
| Dec 2025 | 2.2% | 1.6% |
| Jan 2026 | 2.2% | 1.3% |
| Feb 2026 | 2.2% | 1.1% |
| Mar 2026 | 1.8% | 0.73% |
| Apr 2026 | 1.5% | 0.9% |
| May 2026 | 1.5% | 0.74% |
| Jun 2026 | 1.5% | 0.74% |
| Jul 2026 | 1.3% | 0.61% |
| Aug 2026 | 1.3% | 0.5% |
| Sep 2026 | — | — |
How has the Clerk and Firebase Authentication comparison changed over the last 12 months?
3 findings
- Clerk was ahead of Firebase Authentication in every measured month of the 11 months ending August 2026.
- Across the 11 months ending August 2026, Clerk’s estimated Share of Search among authentication APIs worldwide moved from 2.5% to 1.3%, and its estimated monthly branded searches moved from 25K to 24.9K.
- Across the 11 months ending August 2026, Firebase Authentication’s estimated Share of Search among authentication APIs worldwide moved from 2.2% to 0.5%, and its estimated monthly branded searches moved from 22.2K to 9.9K.
How did search popularity change for authentication APIs worldwide in August 2026?
1 change
Estimated monthly branded searches for Firebase Authentication worldwide fell 55.4% over 11 measured months, from 22.2K to 9.9K in August 2026.
How each brand is measured
Brandwave collects information about searches that people make online using Clerk’s and Firebase Authentication’s names. When viewed over time, estimated search volumes for these branded terms can be used to understand whether interest in the brands is growing, holding steady, or fading.
Clerk
4 branded search terms
- authentication clerk
- clerk auth
- clerk authentication
- clerk com
Firebase Authentication
1 branded search term
- firebase authentication
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