BrowserOS vs Cua
An independent, evidence-based trust comparison of BrowserOS and Cua, two Browser & Computer Use projects in the HVTracker registry. Scores come from public, checkable signals — supply-chain provenance, OSSF Scorecard, maintenance, and adoption — not popularity.
Cua leads on trust — 74.2/100 (Grade B) vs 64.3/100 (Grade C), a 9.9-point gap. Full breakdown below.
| Signal | BrowserOSbrowseros-ai/BrowserOS | Cuatrycua/cua |
|---|---|---|
| HVTrust score | 64.3 | 74.2 |
| Evidence grade | C | B |
| Coverage grade | C | B |
| Overall rank | #244 | #100 |
| Rank in Browser & Computer Use | #12 | #7 |
| GitHub stars | 13.2k | 21.2k |
| Last updated | today | today |
| Build provenance | No | No |
| OSSF Scorecard | 4.9 / 10 | 4.9 / 10 |
| License | AGPL-3.0 | MIT |
| Downloads | — | 11k/wk |
| Trust dimensions (points earned) | ||
| Safety / integrity / 25 | 9.5 | 9.4 |
| Identity & provenance / 18 | 10.8 | 10.8 |
| Transparency / 17 | 12.7 | 12.7 |
| Maintenance / 20 | 20.0 | 20.0 |
| Adoption / 20 | 9.9 | 15.8 |
| Runtime capability surface (full matrix) | ||
| MCP server | Implemented | Implemented |
| External providers | 1 — Amazon Bedrock | 2 — Anthropic, OpenAI |
| Requires API keys | No | No |
| Plugin surface | extensions | — |
| Provenance drift | — | Match |
How to read this: HVTrust (0–100) weighs supply-chain signals (provenance, OSSF Scorecard, signed commits, open license) alongside real-world adoption, scaled by an evidence-confidence factor. Grade bands: A ≥ 80, B ≥ 65, C ≥ 50, D < 50. Signals refresh daily. Full methodology v4.3 →