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Developer Tools
That Actually Work
Format JSON, generate UUIDs, test regex, decode JWTs — all in your browser. No accounts, no tracking, no backend. Just the tool, right now.
15+Tools
100%Client-side
0Signups needed
Format Converters
JSON Formatter & Validator
Prettify, minify, and validate JSON with error highlighting.
JSON to YAML Converter
Convert between JSON and YAML formats instantly.
Coming soon
JSON to CSV Converter
Transform JSON arrays to CSV and back.
Coming soon
Base64 Encode / Decode
Encode strings or files to base64 and decode back.
Coming soon
URL Encode / Decode
Percent-encode URLs and decode encoded strings.
Coming soon
Generators
UUID Generator
Generate RFC-4122 UUID v4 identifiers. Bulk up to 1,000.
Coming soon
UUID v7 Generator
Time-sortable UUIDs for modern distributed systems.
Coming soon
Password Generator
Strong, configurable passwords with entropy meter.
Coming soon
API Key Generator
Prefixed API keys in the style of sk_live_ or pk_test_.
Coming soon
SHA-256 / MD5 Hash
Hash any text with SHA-256, SHA-1, or MD5. Client-side only.
Coming soon
Checkers & Testers
Regex Tester
Test regular expressions with live match highlighting and named groups.
Coming soon
Cron Expression Parser
Parse cron syntax into plain English and show next 10 run times.
Coming soon
JWT Decoder
Decode JWT header, payload, and signature (no verification).
Coming soon
JSON Diff Viewer
Side-by-side diff of two JSON documents.
Coming soon
Why DevTools by Infinfy?
Privacy by design
Every tool runs entirely in your browser. Your data never leaves your machine. We can't see it — we don't want to.
Built for speed
No spinner, no API call, no “processing…”. Paste your input, get your output. That's it.
We explain the spec
Every tool comes with a write-up that actually explains the format, common gotchas, and when you'd use it in production.
Built by developers
These are tools we built because we needed them ourselves. We know what 2am debugging feels like.