String Tools for Developers
Free, fast, and private tools that run entirely in your browser.
No server-side processing, ever.
Encoding & Decoding
URL Encoder/Decoder
Encode special characters in URLs or decode encoded URLs back to text.
Base64 Encoder/Decoder
Convert text or data to Base64 format and decode Base64 strings.
JWT Decode
Decode and inspect the header and payload of JSON Web Tokens.
HTML Entities
Escape special characters for HTML or unescape them back to their original form.
Hex & Binary
Convert strings or numbers to Hexadecimal and Binary representations.
Formatting & Data Conversion
JSON Editor
Advanced JSON editor with tree view, JSONPath filtering, minify and indent capabilities.
YAML ↔ JSON
Seamlessly convert between YAML and JSON formats.
CSV ↔ JSON
Convert flat CSV data to structured JSON arrays and vice versa.
JS Minify/Beautify
Compress JavaScript code or format it for better readability.
CSS Minify/Beautify
Optimize CSS code by removing whitespace or prettify it.
SQL Minify/Beautify
Format SQL queries for clarity or compress them.
String Utilities
Case Converter
Transform text between camelCase, snake_case, PascalCase, kebab-case, and more.
Diff Checker
A visual comparison tool to highlight differences between two blocks of text or code.
Lorem Ipsum Gen
Generate customizable placeholder text for your UI designs.
Word Counter
Real-time statistics including word count, character count, and reading time.
Security & Generation
Password Gen
Generate cryptographically secure random passwords instantly.
HMAC Generator
Calculate Hash-based Message Authentication Codes using various algorithms.
UUID Generator
Generate random version 4 UUIDs (Universally Unique Identifiers) instantly.
SHA-1 Encrypt
Generate secure SHA-1 hash digests from any text input.
SHA-256 Encrypt
Generate secure SHA-256 hash digests from any text input.
QR Code Gen
Generate QR codes from text, URLs, or other data.
Barcode Gen
Generate various types of barcodes from text data.