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JSLike, a CSP-Safe Interpreter for JS, TS, JSX, TSX in JS

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HN · launched May 9, 2026 · 6 upvotes (top 69%) · 0 views

Niche: programming languages and interpreters · 161 launches, 2 in the last 7 days ▼ -75% · Explore this niche →

Category and tags
  • Horizontal
  • Dev tools
  • Developer
  • Not AI
  • Hobby / open-source project

Visit website ↗ Source listing ↗

More like this: all 161 launches in programming languages and interpreters →

Could you build this?

No Building an in-JS AST interpreter for JavaScript, TypeScript, and JSX that executes safely under strict Content Security Policies requires deep language semantics and compiler engineering.

What it would actually take: The engine needs an AST parser (like Babel or SWC bindings) and a bespoke interpreter/evaluator loop written in JavaScript that manually implements ECMAScript specifications (scopes, prototypes, async/await, closures, and JSX runtime factories) without using eval() or new Function(). The system must handle deep edge cases like prototype poisoning, circular references, and execution bounds. It requires specialized expertise in programming language implementation and runtime security.

Discussion

2 comments analyzed.

Concerns raised: Unclear value proposition or use case

Competitors

Other products that read as similar to this one : 3260 launches clear the similarity bar, closest 8 shown.

Attention rank: #2316 of 3261 (itself plus its competitors, highest first, normalized so YC and Product Hunt are compared fairly).

Launched 190 days after the earliest competitor.

  • ende · github · 2026-10-13 · 19 upvotes · similarity 0.71
  • ts-rust · github · 2026-10-07 · 1036 upvotes · similarity 0.70
  • oxbox · github · 2026-09-28 · 41 upvotes · similarity 0.67
  • container · github · 2026-09-23 · 11 upvotes · similarity 0.66
  • SynCloudOS · github · 2026-10-07 · 11 upvotes · similarity 0.66
  • tla-ts · github · 2026-10-26 · 99 upvotes · similarity 0.65
  • SafeScript, a safe version of JavaScript for executing untrusted code · hn · 2026-11-08 · 12 upvotes · similarity 0.65
  • rok · github · 2026-10-25 · 15 upvotes · similarity 0.63

Related data

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