sourcemap-fidelity
Check that source map mappings actually point where they claim — token-level verification, not just valid JSON.
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GITHUB · launched Sep 25, 2026 · 20 upvotes (top 39%) · 0 views
Niche: code and binary analysis tools · 118 launches, 4 in the last 7 days ▼ -56% · Explore this niche →
Category and tags
- Horizontal
- Dev tools
- Developer
- Not AI
- Hobby / open-source project
- build-tools
- debugging
- javascript
- sourcemap
- typescript
- verification
Visit website ↗ Source listing ↗
More like this: all 118 launches in code and binary analysis tools →
Could you build this?
Yes A CLI or library tool that parses source maps and compares VLQ-decoded positions against JS tokens can be written in a few hundred lines of TypeScript using standard parser libraries.
Competitors
Other products that read as similar to this one : 418 launches clear the similarity bar, closest 8 shown.
Attention rank: #163 of 419 (itself plus its competitors, highest first, normalized so YC and Product Hunt are compared fairly).
Launched 329 days after the earliest competitor.
- mapverity · github · 2026-10-31 · 119 upvotes · similarity 0.54
- jsoncompat · hn · 2026-04-06 · 7 upvotes · similarity 0.52
- genpark-structured-extract-schema-validator-skill · github · 2026-09-12 · 7 upvotes · similarity 0.48
- Hookflo tern · ph · 2026-09-25 · 1 upvotes · similarity 0.48
- blackbox · github · 2026-09-23 · 14 upvotes · similarity 0.47
- headerlint · github · 2026-09-30 · 8 upvotes · similarity 0.47
- open-jev · github · 2026-09-16 · 19 upvotes · similarity 0.47
- importmap-lint · github · 2026-09-25 · 20 upvotes · similarity 0.47
The niche, labels, vibe code rating and competitor comparison on this page are analysis by Nicheloom. If you use them, please credit nicheloom.com. How you may use our data.