Data
JSON Sort
Sort object keys recursively, pretty-print output, minify payloads, and export clean JSON.
JSON Diff
Compare two JSON documents structurally and highlight added, removed, or changed keys.
YAML / JSON Converter
Convert between YAML and JSON formats with instant preview.
CSV / JSON Converter
Convert between CSV and JSON formats with header detection.
XML Formatter
Format and beautify XML documents with proper indentation.
Text
Text Diff
Compare two text inputs side by side and switch to a compact summary on smaller screens.
Case Converter
Transform text between camelCase, snake_case, kebab-case, and more.
Regex Tester
Test regular expressions with live matching, capture groups, and flag options.
Base64 Encoder / Decoder
Encode and decode Base64 strings in the browser.
URL Encoder / Decoder
Encode and decode URL components safely.
Text Counter
Count characters, words, lines, and bytes in any text.
Docs
Markdown Render
Preview GitHub-flavored markdown with tables, task lists, and math expressions.
Markdown Table Generator
Build markdown tables visually with a spreadsheet-like editor and copy the result.
Mermaid Diagram Editor
Create flowcharts, sequence diagrams, and more with Mermaid syntax and live preview.
LaTeX Render
Render inline and block math formulas with KaTeX.
HTML to Markdown Converter
Convert HTML to clean Markdown or preview Markdown as rendered HTML.
Dev
JWT Decoder
Decode JSON Web Tokens to inspect header, payload, and signature claims.
UUID Generator
Generate random UUIDs (v4) instantly in the browser.
Timestamp Converter
Convert between Unix timestamps and human-readable dates.
Hash Generator
Generate SHA-1, SHA-256, and SHA-512 hashes from any text input.
SQL Formatter
Format and beautify SQL queries for MySQL, PostgreSQL, and more.
Code Formatter
Format and beautify code in multiple languages instantly.