Developer Tools
Format JSON, encode Base64 and URLs, generate UUIDs.
-
JSON Formatter & Validator
Format, beautify, minify and validate JSON online. Shows the exact line and column of syntax errors. Your data stays in your browser.
Open tool -
Base64 Encoder & Decoder
Encode text to Base64 or decode Base64 back to text, with full UTF-8 support and an optional URL-safe mode.
Open tool -
URL Encoder & Decoder
Percent-encode text for URLs and query strings, or decode encoded URLs back to readable text.
Open tool -
UUID Generator
Generate random version 4 UUIDs (GUIDs) in bulk – up to 100 at once, with options for uppercase, hyphens and braces.
Open tool -
Password Generator
Create strong, random passwords with 8–64 characters. Choose letters, digits and symbols and see the estimated strength.
Open tool
More categories
-
PDF Tools
Merge, split, compress and convert PDF files.
-
Image Tools
Compress, resize and convert images without uploading them.
-
Text Tools
Count words and characters, change case and clean up text.
-
SEO Tools
Check titles, meta descriptions and other on-page basics.
-
File Conversion
Convert between common document and image formats.
-
Calculators
Percentages, ages, ratios and other everyday math.
-
QR Code Tools
Create QR codes for links, text, Wi-Fi and more.
-
Productivity Tools
Small helpers for planning, timing and focused work.
-
AI Tools
Curated AI tools, with clear notes on what is free.
-
Color Tools
Convert HEX, RGB and HSL and build color palettes.
-
Date & Time Tools
Date differences, time zones and calendar conversions.
-
Unit Converters
Length, weight, temperature, volume and more.
-
Finance Calculators
Loans, savings, interest and salary estimates.