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🧩 JSON Validator

Validate JSON strings instantly and catch syntax errors fast.

JSON Validator

Check if your JSON is valid. Paste or type JSON below and click validate.

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Decode JWT header and payload safely in your browser. Inspect claims and structure without sending tokens anywhere.

Parse cron expressions and preview next run times. Useful for devs managing scheduled tasks and crontab jobs.

Compute HMAC signatures with SHA-256, SHA-1, or MD5 using a secret key. Secure online hashing tool.

Test and debug JavaScript regular expressions. Highlight matches and quickly verify regex patterns.

Parse a URL into protocol, host, path, query string, and hash. Quick online URL analyzer tool.

Minify and compress JavaScript code instantly. Reduce file size with Terser-style compression and improve load speed.

Minify CSS online by removing whitespace, comments, and redundancy. Optimize your stylesheets quickly.

Minify HTML code instantly. Remove comments, extra spaces, and reduce file size for faster websites.

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