6 alternatives to Java

thealgorithms/java — All Algorithms implemented in Java (66,469 stars, MIT, dev-tools, analytics, ai).

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 also serves 822 licence-cleared components from thealgorithms/java itself.

The alternatives in detail

• trekhleb/javascript-algorithms
  📝 Algorithms and data structures implemented in JavaScript with explanations and links to further readings
  score 8.0/10 · MIT permissive · 196,690 stars · 162 components · search them · alternatives
• iluwatar/java-design-patterns
  Design patterns implemented in Java
  score 3.8/10 · MIT permissive · 94,820 stars · 1,364 components · search them
• algorithm-visualizer/algorithm-visualizer
  :fireworks:Interactive Online Platform that Visualizes Algorithms from Code
  score 3.5/10 · MIT permissive · 48,905 stars · 45 components · search them · alternatives
• kodecocodes/swift-algorithm-club
  Algorithms and data structures in Swift, with explanations!
  score 6.1/10 · MIT permissive · 29,060 stars · 282 components · search them · alternatives
• kdn251/interviews
  Everything you need to know to get the job.
  score 4.4/10 · MIT permissive · 65,502 stars · 467 components · search them
• loilo/fuse
  🔍 Fuzzy search for PHP, ported from Fuse.js
  score 4.5/10 · Apache-2.0 permissive · 366 stars · 31 components · search them

Licence data: JustClaw-It's per-repo licence policy. Is Java still maintained? Check it. Licence details: licence checker. Ranking data from 2026-10-27T23:04:12Z.