Simple, Fast Online Tools
No installation or account required. Choose a tool and get started—all data is processed locally in your browser.
Base64 Encoder & Decoder
Transform plain text to standard Base64 format or decode sequences.
URL Encoder & Decoder
Percent-encode query parameters or parse encoded URL strings safely.
Punycode Converter
Encode Unicode domains to ASCII-compatible ACE format or decode Punycode strings.
JSON Formatter & Validator
Format, minify, and validate JSON with clear syntax feedback.
Word & Character Counter
Count words, characters, lines, sentences, and estimated reading time.
UUID Generator
Generate cryptographically random UUID v4 or time-ordered UUID v7 values.
Unix Timestamp Converter
Convert Unix timestamps to dates and dates back to seconds or milliseconds.
Password Generator
Create strong random passwords locally with customizable character options.
QR Code Generator
Create and download QR codes for text, links, and other content.
Image Compressor & Resizer
Compress, resize, convert, or optimize images toward a target file size.
Random Picker & Team Generator
Pick a random item, shuffle a list, or create balanced random teams.
Date Difference Calculator
Calculate days and weekdays between dates or add and subtract time.
Color Contrast Checker
Check WCAG contrast ratios and preview readable color combinations.
Text Diff Checker
Compare two texts and highlight added, removed, and unchanged content.
CSV & JSON Converter
Convert CSV data to JSON or JSON arrays back to CSV in your browser.
Unit Converter
Convert length, area, mass, temperature, speed, data size, and more.
Time Zone Converter
Compare a date and time across time zones with daylight saving support.
Hash & Checksum Tool
Generate and verify SHA checksums for text or local files.
Regular Expression Tester
Test JavaScript regular expressions, matches, groups, and replacements safely.