Built some free dev tools that don’t require signup:
Security Scanner — paste a URL, get a security grade (A-F) http://5.78.129.127/security-scan
JSON Diff — compare two JSON objects, see what changed http://5.78.129.127/json-diff
28 API endpoints — SSL checker, DNS lookup, email validation, hash generator, UUID, base64, JWT decode, cron explainer, and more:
curl http://5.78.129.127/api/ssl/example.com
curl http://5.78.129.127/api/hash?text=hello&algo=sha256
curl http://5.78.129.127/api/jwt/decode?token=eyJ...
Free: 50 requests/day. Need more? Pay with Lightning sats.
Full docs: http://5.78.129.127/api/
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