All Tools
Free online utilities that run entirely in your browser. No sign-up, no data sent to servers.
JSON Formatter
Beautify, minify and validate JSON instantly. Paste your data and get clean, readable output in one click.
Base64 Encoder
Encode text to Base64 or decode Base64 back to plain text. A handy utility for developers.
URL Encoder / Decoder
Percent-encode or decode URLs and query parameters quickly and safely in your browser.
Color Picker
Pick colors and convert between HEX, RGB and HSL formats for your design and CSS needs.
Password Generator
Generate strong, random and secure passwords with customizable length and character sets.
Markdown Preview
Write Markdown and see the rendered HTML preview side by side in real time.
UUID Generator
Generate random UUIDs (version 4) in bulk. RFC 4122 compliant, perfect for database keys and unique identifiers.
Hash Generator
Compute SHA-1, SHA-256 and SHA-512 hashes of any text. All done locally in your browser using the Web Crypto API.
Text Case Converter
Convert text between UPPERCASE, lowercase, Title Case, camelCase, snake_case and kebab-case instantly.
Word Counter
Count characters, words, sentences and paragraphs in real time. Get reading time estimates and keyword density.
QR Code Generator
Create custom QR codes for URLs, text, contacts and more. Download as PNG or SVG instantly.
Unix Timestamp Converter
Convert between Unix timestamps and human-readable dates. Supports seconds and milliseconds, any timezone.
Lorem Ipsum Generator
Generate placeholder text in Lorem Ipsum style. Choose paragraph count, sentence length and output as plain text or HTML.
Unit Converter
Convert between length, weight, temperature and data units. Metric to imperial and more, all instant.
From the Blog
Guides and articles for builders and creators.
Getting Started with JSON: A Beginner's Guide
Learn what JSON is, why it powers the modern web, and how to read and write it correctly.
Understanding Web Performance and Core Web Vitals
A practical overview of the metrics that matter for fast, user-friendly websites.
How to Choose the Right Online Tool for Your Workflow
Not all online tools are equal. Here is how to pick ones that are safe, fast, and private.