A premium, privacy-first suite of offline developer tools designed to run completely sandboxed inside your browser. No signup. No API keys. Zero tracking.
No servers, no tracking, and no database logs. Your keys and JSON code remain entirely on your local machine.
Instant in-browser calculations using highly optimized local JavaScript parser libraries and routines.
Works 100% offline. Ideal for secure corporate intranets, high-speed formatting, or sandbox testing.
Format and clean JSON code
Validate syntax in real time
Convert HTML elements to JSX
Format database SQL queries
Generate RFC v4 UUIDs
Generate high-entropy keys
Encode text to Base64 format
Decode JWT payloads locally
Format, beautify, and clean up messy JSON data with customizable indentation.
Validate JSON code against strict specifications and debug syntax errors.
Compress JSON code by removing unnecessary spaces, newlines, and indentation.
Enhance JSON readability with clean colors, collapsible nodes, and tree views.
Convert nested or flat JSON objects and arrays into structured CSV format.
Convert CSV spreadsheets or lists into clean JSON array formats.
Translate structured JSON schemas into descriptive XML syntax tree nodes.
Convert XML data structures into readable JSON trees.
Format database SQL queries with uppercase keywords, indentation, and alignment.
Indent HTML code, clean up attributes, and beautify web layouts.
Beautify stylesheets, format selectors, rules, and property values with clean indents.
Beautify Javascript/ES6 and Typescript code lines for standard readability.
Prettify XML documents with proper nesting, tag alignment, and attribute wraps.
Check indentation syntax and format YAML files for configuration tasks.
Convert YAML configurations into standard JSON structures.
Convert structured JSON files into readable YAML configurations.
Convert standard HTML pages or divs into clean React JSX format.
Convert React JSX elements and className tags back to standard HTML markup.
Encode text strings or files into secure, binary-safe Base64 notation.
Decode Base64 encoded strings back into clean, readable text.
Percent-encode URL components, query parameters, and special characters.
Unescape percent-encoded URLs to restore human-readable string values.
Decode JSON Web Tokens (JWT) payload structures without sending them online.
Generate single or bulk RFC 4122 compliant UUID Version 4 codes.
Generate MD5, SHA-1, and SHA-256 hashes of input text in real time.
Quickly generate standard 128-bit MD5 checksum hashes of string values.
Generate secure 160-bit SHA-1 hashes of custom text entries.
Generate highly secure 256-bit SHA-256 hashes for data validation.
Test regular expressions against test text and inspect highlighted matches.
Build crontab expressions with simple interactive selection elements.
Convert epoch Unix timestamps back to standard dates and vice versa.
Convert color formats between HEX, RGB, HSL, and view color swatches.
Convert hex color codes into RGB values.
Convert RGB color values into hex code format.
Convert Red-Green-Blue (RGB) codes into Hue-Saturation-Lightness (HSL).
Convert Hue-Saturation-Lightness color formats into RGB values.
Generate placeholder text, sentences, or paragraphs for design templates.
Generate highly secure, randomized passwords with customizable strength options.
Create customizable QR codes for text, links, or contacts and download as images.
Generate standard industrial barcodes like CODE128, EAN, or UPC and download them.