Paste raw JSON or upload a file to parse, validate, and format it. The tool automatically repairs single quotes, trailing commas, unquoted keys, and Python literals (True/False/None) in the browser, without sending your data to any server.
Compare two blocks of text side-by-side or inline, with word-level and line-level diff highlighting for insertions, deletions, and changes. The tool runs offline in your browser.
Format, validate, and beautify JSON with syntax highlighting, 2- or 4-space indentation, and one-click minification. Runs entirely in your browser without uploads or sign-up.
Decode JSON Web Tokens, view headers and payloads, and convert timestamps into local dates. All processing runs in your browser without any server uploads.
Convert Word, Excel, PowerPoint, PDF, EPUB, and more to Markdown in your browser. Powered by anydoc.
Retro Windows-like Notepad with full-screen editing, multi-tab support, offline file picker, Word Wrap, and localStorage persistence. It runs completely offline and keeps your notes private.
Convert YAML data to JSON and JSON data to YAML with syntax validation and minification. All conversion runs in your browser with no server uploads.
Convert CSV data to JSON and JSON data to CSV with custom delimiters and formatting. All conversion runs in your browser without any server uploads.
Create custom QR codes as high-quality PNG images or vector SVGs with custom colors, margins, and sizes. All rendering runs in your browser with no server uploads.
Test and debug regular expressions with live match highlighting, capture group inspection, and flag toggles. All features run in your browser without requiring a server.
Word, character, and line counter with tools to sort lines, remove duplicates, and reverse text. The analyzer runs in your browser without any server uploads.
Create custom, high-resolution vector barcodes in Code 128, Code 39, EAN, and UPC formats with instant downloads. All rendering runs in your browser with no server uploads.
Encode and decode HTML entities, format numeric or named entities, and prevent HTML/XSS injection. All actions run in your browser without server uploads.
Convert XML data to JSON and JSON data to XML with syntax validation and formatting. All conversion runs locally in your browser without any server uploads.
Encode plain text into percent-encoded URL strings or decode them back. The tool handles special characters, Unicode, and query parameters directly in your browser.
Parse and analyze URLs, inspect protocols, hostnames, and paths, and interactively edit query parameters to rebuild URLs. All processing runs in your browser without any server uploads.
Encode plain text or binary data to Base64 and decode Base64 back to UTF-8. The tool handles special characters and symbols entirely in your browser with zero network requests.
Decode, inspect, edit, and cryptographically re-sign JSON Web Tokens with signature verification. The tool runs in your browser without any server uploads.
Convert text or variable names between camelCase, PascalCase, snake_case, kebab-case, UPPER CASE, Title Case, and sentence case instantly in your browser.
Convert color spaces between HEX, RGB, HSL, and HSV, pick custom colors, and generate harmonic palettes. All processing runs in your browser with no server uploads.
Generate secure cryptographic checksums (MD5, SHA-1, SHA-256, SHA-512), DES encryptions, and RSA-2048 signatures in real-time directly in your browser, with no uploads.
Format, minify, and validate XML in your browser. Features syntax highlighting, error detection, and one-click copying. It requires no server or uploads, running completely offline.
Decode any 17-digit Vehicle Identification Number (VIN), inspect country of origin, model year, manufacturer, and verify the check digit. The decoder runs in your browser with no server uploads.
Search and lookup ISO country codes (Alpha-2, Alpha-3, Numeric), international dial codes, capitals, currencies, and flags. All features run in your browser without any server uploads.
Mathematically validate ISBN-10 and ISBN-13 book codes and verify check digits directly in your browser, with options to look up book metadata via Open Library.
Convert text to Morse code and Morse code to text, and synthesize Morse audio beeps using native Web Audio. All features run in your browser with no server uploads.
Convert text into the official NATO phonetic radio spelling alphabet with pronunciation guides and speech synthesis. All processing runs in your browser with no server uploads.
Format phone numbers into National, International, E.164, and TEL URI formats using country-specific rules. The formatter runs in your browser without any server uploads.
Create, package, and compress multiple files and folders into a downloadable ZIP archive completely offline in your browser using JSZip.
Extract, inspect, and preview the contents of any ZIP archive completely offline in your browser. Download individual files or extract all.
Format, sanitize, and validate MAC addresses (MAC-48, EUI-64) into IEEE colon, hyphen, Cisco dot, binary, or raw hex, with client-side OUI vendor lookup.
Interactive chmod permissions calculator. Select checkboxes, enter octal values, or input symbolic strings to calculate Unix file/directory permissions in your browser.
Interactive Cron expression builder. Select presets, toggle parameters, translate schedules to plain English, and calculate next execution runs in your browser.
Parse, validate, and debug crontab expression lines. Extract parameters, translate schedules to plain English, and view next run executions in your browser.
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