💻 Developer Tools
20 tools
JSON Formatter
JSON Beautify & Validate
Beautify, minify, and validate JSON data.
JWT Debugger
JWT Decode & Verify
Decode, encode, and verify JSON Web Tokens.
Text Case Converter
8 Case Conversion Modes
Convert text between 8 different case formats.
Base64 Text Decoder
Base64 String Decode
Decode Base64 encoded strings to plain text.
Base64 Text Encoder
Text to Base64 Encode
Encode plain text to Base64 string online.
UUID Generator
UUID v4/v7 Generator
Generate UUID v4 and v7 identifiers.
Base Converter
HEX/DEC/BIN Conversion
Convert numbers between HEX, DEC, OCT, and BIN formats.
Checksum Calculator
CRC16 & Checksum
Calculate CRC16 (MODBUS, CCITT, IBM) and 8/16-bit checksum for ASCII text or HEX bytes. Used for serial communication, protocol verification.
CRC Calculator
All CRC Algorithms
Calculate CRC-8, CRC-16 (MODBUS, CCITT, XMODEM, KERMIT, DNP, IBM, USB…) and CRC-32 checksums for HEX bytes or ASCII text. All common CRC algorithms in one tool.
Hex Arithmetic
HEX +−×÷
Perform addition, subtraction, multiplication and division on hexadecimal numbers. Supports 8/16/32/64-bit result width.
Text Statistics
Word & Char Count
Count characters, words, lines, sentences, bytes (UTF-8/UTF-16) and more in any text. Real-time statistics.
Text Processor
Split / Join / Wrap
Split, join, wrap, add prefix/suffix, and clean text lines. Handles comma-separated values, newlines and custom delimiters.
File Size Converter
Bit/Bytes/KB/MB/GB/TB
Convert between Bit, Bytes, KB, MB, GB, and TB.
Chinese to Pinyin
Hanzi to Pinyin
Convert Chinese characters to Pinyin romanization.
Color Converter
Hex/RGB/HSL Conversion
Convert colors between Hex, RGB, and HSL formats.
URL Encoder
URL String Encoding
Encode strings for safe use in URLs.
URL Decoder
URL String Decoding
Decode URL-encoded strings back to readable text.
Timestamp Converter
Unix Timestamp Conversion
Convert between Unix timestamps and human-readable dates.
Regex Tester
Regex Pattern Tester
Test and debug regular expressions with live matching.
OG Image Generator
1200×630 Open Graph & Twitter Card Image
Generate 1200×630 Open Graph images for your website. Customize title, description, colors, and logo — download PNG instantly.