Browser4 vs Stagehand
An independent, evidence-based trust comparison of Browser4 and Stagehand, 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.
Stagehand leads on trust — 88.2/100 (Grade A) vs 76.7/100 (Grade B), a 11.5-point gap. Full breakdown below.
| Signal | Browser4platonai/Browser4 | Stagehandbrowserbase/stagehand |
|---|---|---|
| HVTrust score | 76.7 | 88.2 |
| Evidence grade | B | A |
| Coverage grade | B | A |
| Overall rank | #187 | #31 |
| Rank in Browser & Computer Use | #9 | #4 |
| GitHub stars | 1.1k | 24.3k |
| Last updated | 1d ago | 2d ago |
| Build provenance | Yes | Yes |
| OSSF Scorecard | 4.5 / 10 | 5.0 / 10 |
| License | Apache-2.0 | MIT |
| Downloads | 1k/wk | 1.2M/wk |
| Trust dimensions (points earned) | ||
| Safety / integrity / 25 | 13.3 | 18.8 |
| Identity & provenance / 18 | 18.0 | 18.0 |
| Transparency / 17 | 12.3 | 12.8 |
| Maintenance / 20 | 19.9 | 19.1 |
| Adoption / 20 | 11.5 | 18.6 |
| Runtime capability surface (full matrix) | ||
| MCP server | Declared | Implemented |
| External providers | 3 — DeepSeek, OpenAI, OpenRouter | 3 — Anthropic, Browserbase, OpenAI |
| Requires API keys | Yes | Yes |
| Plugin surface | plugins | extensions |
| Provenance drift | Match | 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 →