sourcemap-fidelity
Check that source map mappings actually point where they claim — token-level verification, not just valid JSON.
Details
- External ID
- 1386679579
- Source
- GITHUB
- Company
- —
- Product
- sourcemap-fidelity
- Website domain
- github.com
- Launched
- Sept. 25, 2026
- Cohort
- —
- Upvotes
- 20
- Upvotes percentile
- 0.6029976940814757
- Tags
- build-tools, debugging, javascript, sourcemap, typescript, verification
- Fetched at
- Sept. 29, 2026, 5:02 p.m.
- Updated at
- Sept. 29, 2026, 5:02 p.m.
Enrichment
- Theme
- low-level systems and developer tools
- Vertical
- Horizontal
- Function
- Dev tools
- Audience
- Developer
- AI stance
- Not AI
- Project type
- Hobby / open-source project
- Normalized one-liner
- source map mapping verifier for developers
- Manually corrected
- False
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 — 123 launches clear the similarity bar, closest 8 shown.
Attention rank: #40 of 124 (itself plus its competitors, highest first — normalized so YC and Product Hunt are compared fairly).
Launched 329 days after the earliest competitor.
- jsoncompat · hn · 2026-04-06 · 7 upvotes · similarity 0.50
- genpark-structured-extract-schema-validator-skill · github · 2026-09-12 · 8 upvotes · similarity 0.46
- genpark-structured-extract-schema-validator-skill · github · 2026-09-12 · 7 upvotes · similarity 0.46
- Hookflo tern · ph · 2026-09-25 · 1 upvotes · similarity 0.46
- importmap-lint · github · 2026-09-25 · 20 upvotes · similarity 0.45
- blackbox · github · 2026-09-23 · 14 upvotes · similarity 0.45
- open-jev · github · 2026-09-16 · 19 upvotes · similarity 0.45
- genpark-partial-json-parser-stream-completer-skill · github · 2026-09-29 · 7 upvotes · similarity 0.43
Other launches for this product
- No other launches for this product.
Same idea, different domain
Nobody's really built a dev tools tool for Sales yet.