Side-by-Side Comparison
chess.js vs SemIf-OpenJev
Compare open source repositories side by side. Stars, forks, code health, licensing, and community growth.
Recorded Stars Comparison
● jhlywa/chess.js (4.4K)
● TheoLeeCJ/SemIf-OpenJev (4.9K)
☆ 4.4Kchess.js stars
☆ 4.9KSemIf-OpenJev stars
+464Difference
SemIf-OpenJevStar Leader (1.1x)
⚖️ Comparison Verdict
Star Popularity
SemIf-OpenJev Leads
+464 stars (1.1x ratio)
Forks & Derivatives
chess.js Leads
990 total community forks
Recent Maintenance
SemIf-OpenJev
Pushed 1mo ago
Licensing
Different
chess.js: BSD-2-Clause vs SemIf-OpenJev: MIT
Side-by-Side Facts
| Metric | jhlywa/chess.js ↗ | TheoLeeCJ/SemIf-OpenJev ↗ |
|---|---|---|
| Description | A TypeScript chess library for chess move generation/validation, piece placement/movement, and check/checkmate/draw detection | Semantic ifs from open models, on a 3090 at home. Independent; not affiliated with Jev or TypeSafe. |
| GitHub Stars | ☆ 4,416 | ☆ 4,880 |
| Forks | 990 | 358 |
| Open Issues | 47 | 48 |
| Main Language | TypeScript | Python |
| License | BSD-2-Clause | MIT |
| Last Push | Aug 11, 2026 | Sep 23, 2026 |
| GitHub Source | Open Source ↗ | Open Source ↗ |
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