Web App Manifest Checker API
PWA manifest and installability report as JSON
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Read the full description
Give it a page URL and get a JSON report on its Web App Manifest: the manifest is located, fetched and validated against the W3C spec, with coded issues, a grade (A+ to F), a score out of 100 and an installability verdict with blockers. A second endpoint validates manifest JSON you paste in, offline. For CI gates and PWA audits without running Lighthouse.
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PH · launched Oct 17, 2026 · 1 upvote (top 67%)
- Horizontal
- Dev tools
- Developer
- Not AI
- Commercial product
- API
Similar launches
See all 44 similar launches →Could you build this?
Yes This is a lightweight API/microservice that fetches web pages, parses their JSON manifests, and validates them against standard W3C JSON schema rules.
Competitors
Other products that read as similar to this one : 44 launches clear the similarity bar, closest 8 shown.
Attention rank: #18 of 45 (itself plus its competitors, highest first, normalized so YC and Product Hunt are compared fairly).
Launched 256 days after the earliest competitor.
- JSON-LD Structured Data Validator API · ph · 2026-10-18 · 1 upvotes · similarity 0.48
- OJapp PWA-1P1A · ph · 2026-09-12 · 3 upvotes · similarity 0.43
- Manifest API Bot · ph · 2026-10-02 · 2 upvotes · similarity 0.42
- PageSignal · ph · 2026-10-20 · 1 upvotes · similarity 0.42
- JSON Formatter & Validator · ph · 2026-10-15 · 1 upvotes · similarity 0.40
- JSON Doc · ph · 2026-10-04 · 2 upvotes · similarity 0.40
- JSON Object Validator · ph · 2026-09-24 · 2 upvotes · similarity 0.39
- AppCheckHQ · ph · 2026-10-08 · 2 upvotes · similarity 0.37
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More details
- External ID
- 1282687
- Company
- n/a
- Product
- AI Visibility Checker
- Website domain
- producthunt.com
- Cohort
- n/a
- Upvotes percentile
- 0.33
- All tags
- API
- AI summary
- api for validating pwa manifests and installability
- Manually corrected
- No