Category
Developer Tools
JSON, base64, regex, hash
JSON Formatter
Paste your JSON to format, validate, and beautify it instantly with syntax highlighting.
Unix Timestamp Converter
Convert Unix timestamps to human-readable dates and vice versa. Live epoch counter updating every second.
Base64 Encoder/Decoder
Encode and decode text or files to and from Base64, with URL-safe output, file uploads, and size statistics.
URL Encoder/Decoder
Encode and decode URLs with component or full URL encoding modes. Supports encodeURIComponent and encodeURI.
HTML Entity Encoder/Decoder
Encode text to HTML entities (named, numeric, or hex) or decode entities back to plain text — runs entirely in the browser.
HTTP Status Codes
Searchable HTTP status code reference with live filter, category chips, detail view, and related codes.
Regex Tester
Test and debug JavaScript regular expressions with live highlighting, capture groups, and step-by-step explanation.
Password Generator
Generate strong random passwords or memorable passphrases with strength meter, entropy, and crack-time analysis.
Hash Generator
Generate MD5, SHA-1, SHA-256, SHA-384, and SHA-512 hashes from text input.
UUID Generator
Generate v4 UUIDs with batch generation, format options, and copy buttons.
IP Subnet Calculator
Calculate IPv4 subnet details including network, broadcast, host range, masks, and binary representations.
Cron Expression Generator
Build and decode cron expressions with a visual builder, schedule heatmap, next-run preview and copy-ready snippets for crontab, GitHub Actions, Kubernetes, Node and Python.
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