Validation & Formatting
Catch malformed JSON, invalid emails, and broken regular expressions before they cause bugs downstream. These tools format and validate structured text — JSON, JWTs, code, and regex — with immediate, readable feedback.
JSON Formatter
Format, validate, and minify JSON with syntax highlighting and error detection
Regex Tester
Test and debug regular expressions with live match highlighting and flags
Code Beautifier
Format and beautify JSON, HTML, CSS, and JavaScript with proper indentation
Text Statistics
Analyze text for word count, character count, reading time, and keyword density
JWT Decoder
Decode and inspect JWT header, payload, and signature without a server
Email Validator
Validate email addresses against RFC format rules, individually or in bulk
Diff Viewer
Compare two text blocks side by side and highlight every addition and deletion