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Developer Toolkit
JSON, YAML, CSV, Base64, URL encoding, JWT decoding, hashes, UUIDs, regex testing and timestamps. All tools run locally in your browser.
JSON formatter + validator
Ready.
YAML ↔ JSON
Uses a small fallback parser for common YAML. Full YAML support loads when js-yaml is available.
CSV ↔ JSON
Ready.
Base64 encode / decode
URL encode / decode
JWT decoder
Paste a token to decode the header and payload. Signature verification is not performed.
Hash generator
UUID generator
Regex tester
Timestamp converter
Notes
No upload
Client-side
JWT decode only
Crypto via browser APIs