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Showing 17 tools in Priority 1.
Validate, format, minify, and inspect JSON with a readable tree view in one place.
Test regex patterns, inspect capture groups, generate suggested patterns, and explain regex token-by-token in plain language.
Encode plain text to Base64 or decode Base64 to text.
Generate UUID v1, v4, and v7 values or inspect existing UUIDs to identify version, variant, and canonical format.
Decode JWTs, inspect claims, interpret token timing, and verify HS256/HS384/HS512 signatures.
Write markdown with live preview, GitHub-style formatting, code highlighting, TOC, and export actions.
Encode or decode URL components with safe error handling.
Parse URL query strings into readable key-value JSON.
Convert Unix timestamps to human-readable dates and back.
Convert date-time values between IANA timezones.
Format JavaScript code with readable spacing and line breaks.
Beautify HTML markup with indentation and line breaks.
Format CSS rules with consistent spacing and indentation.
Format SQL queries into readable multi-line statements.
Generate secure random passwords with customizable options.
Generate SHA-256 hashes in your browser.
Compare two text blocks with Git-style unified and split diff views, including inline change highlights.
Examples, Regex examples, Converter hub, Learn guides.