Featured workflows
Start common conversions and checks quickly.
Run frequent tasks like OG card previews, unit conversion, and IP lookup in one place.
Browse by intent
Find the right tool for the task.
Free encoding, security, and inspection tools make recurring development tasks simpler.
Encoding
When you need to change strings into another format
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Base64 Encoder/Decoder
Base64 encode and decode strings -
URL Encoder/Decoder
Encode and decode URL strings -
Unicode Text Encoder/Decoder
Convert between multiple text representations -
HTML Entity Converter
Encode and decode special-character entities -
Markdown HTML Converter
Convert Markdown documents to HTML and preview the result -
HTML Markdown Converter
Convert HTML code to Markdown documents
Security
When working with tokens, random values, and hashes
Inspection
When you need to inspect and verify
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JSON Formatter
Validate JSON syntax and format it for readability -
YAML Formatter
Validate and format configuration files -
SQL Formatter
Format SQL queries for readability -
YAML ↔ JSON Converter
Convert configuration files and API data formats -
Timestamp Converter
Convert Unix time and dates -
Date Calculator
Calculate durations between dates and dates before or after a base date -
Solar to Lunar Converter
Convert Gregorian dates to lunar dates -
Lunar to Solar Converter
Convert lunar dates to Gregorian dates -
Monthly Lunar Calendar
View a monthly lunar calendar with holidays and solar terms -
Unit Converter
Convert length, weight, volume, area, and temperature in one place. -
Timezone Converter
Convert current times and time differences by country -
Regex Tester
Check pattern matches and preview results -
Color Converter
Convert HEX, RGB, and HSL formats -
QR Code Generator
Generate scannable QR codes from text and URLs -
Text Diff Checker
Compare two texts and inspect their differences -
Character Counter
Count characters, bytes, and spaces -
Cron Expression Generator/Interpreter
Create recurring schedules and interpret them clearly -
My IP Address
Check your current IP, location, and ISP, or look up an IP address you enter. -
OG Preview
Safely fetch OG and Twitter meta tags from a URL and preview the sharing card.
