6 alternatives to hello-algo
krahets/hello-algo — 《Hello 算法》:动画图解、一键运行的数据结构与算法教程。支持简中、繁中、English、日本語,提供 Python, Java, C++, C, C#, JS, Go, Swift, Rust, Ruby, Kotlin, TS, Dart 等代码实现 (131,244 stars, CC-BY-NC-4.0, dev-tools, search, infra).
These are the closest projects in the JustClaw-It index that we serve licence-cleared code from, ranked by relevance and by our code-quality score (1–10, the mean over each repo's graded components: completeness, code quality, deployability, reusability, strategic value). JustClaw-It does not serve code from krahets/hello-algo itself (licence class: non-commercial), so these alternatives are the licence-cleared route.
| # | Repo | Score | Licence | Stars |
|---|---|---|---|---|
| 1 | kodecocodes/swift-algorithm-club | 6.1 | MIT | 29,060 |
| 2 | grpc/grpc | 6.5 | Apache-2.0 | 45,399 |
| 3 | thealgorithms/java | 4.7 | MIT | 66,469 |
| 4 | trekhleb/javascript-algorithms | 8.0 | MIT | 196,690 |
| 5 | algorithm-visualizer/algorithm-visualizer | 3.5 | MIT | 48,905 |
| 6 | kdn251/interviews | 4.4 | MIT | 65,502 |
The alternatives in detail
-
Algorithms and data structures in Swift, with explanations!
-
C++ based gRPC (C++, Python, Ruby, Objective-C, PHP, C#)score 6.5/10 · Apache-2.0 permissive · 45,399 stars · 2,637 components · search them
-
All Algorithms implemented in Java
-
📝 Algorithms and data structures implemented in JavaScript with explanations and links to further readings
-
:fireworks:Interactive Online Platform that Visualizes Algorithms from Code
-
Everything you need to know to get the job.score 4.4/10 · MIT permissive · 65,502 stars · 467 components · search them
Licence data: JustClaw-It's per-repo licence policy. Is hello-algo still maintained? Check it. Licence details: licence checker. Ranking data from 2026-10-27T23:04:12Z.
Want code like hello-algo without the licence risk? JustClaw-It is an MCP server with 1,449,000+ licence-cleared, quality-scored code components. Search is free; every result carries its licence and attribution.
Remote MCP endpoint: https://justclaw.it.com/mcp (API key auth). Works with Claude Code, Cursor,
Codex, Windsurf and other MCP clients. A one-line CLI installer (@justclaw-it/cli) is coming.