// a sandbox of 139 sharp tools
Every little generator
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QR, barcodes, bcrypt hashes for PHP, UUIDs, JWT decoders, color palettes — fast, local, no signup. Search the sandbox and start.
139 results
JWT Validator
Security · tool
JWT Validator
Verify a JWT signature against your HMAC secret and check expiry.
// about the sandbox
The small utilities you need,
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Every generator runs entirely in your browser. Your inputs never leave the page — no servers, no logging, no tracking pixels. Open the tool, get the thing, close the tab.
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