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OpenUI vs Bolt

An independent, evidence-weighted trust comparison of two ui & app builders — ranked on verifiable signals, not popularity.

OpenUI ranks higher with an HVTrust score of 72.2 vs 34.8/100 (Grade B vs D). Note: Bolt has active review flags that may affect its suitability. HVTrust reflects supply-chain safety, transparency, maintenance, and adoption — weighted by how much verifiable evidence exists.
SignalOpenUIBolt
HVTrust score72.234.8
Evidence gradeBD
Registry stateListedNeeds review
Safety / Integrity (25)12.57.6
Identity / Provenance (18)18.010.8
Transparency (17)8.511.5
Maintenance (20)18.60.0
Adoption (20)14.614.9
GitHub stars6.8k16.4k
Weekly downloads10,7584,212
Last push2026-06-082024-12-17
LanguageTypeScriptTypeScript
OSSF Scorecard—3.5
Review flags—no meaningful activity in 12 months (last push 2024-12-17)
Recent change2026-06-08: First tracked at rank #642026-06-05: HVTrust up 4.8pts (30.0 → 34.8)
Full OpenUI report → Full Bolt report → All UI & App Builders →