Online Developer Tools
Free, fast, and easy-to-use web tools for developers. Streamline your workflow with our comprehensive suite of utilities.
Popular Tools
Base64 Encode/Decode
Convert text to Base64 format and decode Base64 strings
Notepad
Create, edit, save and manage notes directly in your browser.
Text Case Converter
Convert text between different casing conventions
Word/Character Counter
Count words, characters, sentences, and paragraphs in your text
✨ New Tools
14 new toolsURL Parser & Decoder
Parse, validate, and decode URLs with detailed component breakdown. Extract protocol, hostname, path, query parameters, and fragments from any URL
YAML ⇄ JSON Converter
Convert between YAML and JSON formats with validation and formatting
SQL Formatter & Beautifier
Format, beautify, and validate SQL queries with syntax highlighting. Support for multiple SQL dialects including MySQL, PostgreSQL, SQLite, and more
Lorem Ipsum Generator
Generate Lorem Ipsum placeholder text with customizable paragraphs, words, and formatting options. Perfect for designers, developers, and content creators
Monthly Installment Calculator
Calculate monthly loan payments, total interest, and amortization schedules with balloon payment support
Data Generator
Generate realistic sample data for testing, development, and prototyping with customizable schemas
Countdown Timer
Set custom countdown timers with pause, resume, and audio alerts. Perfect for productivity and time management
Text to Speech
Convert text to speech with natural-sounding voices, adjustable speed, pitch, and volume controls
Today's Date
Get today's date, current time, and perform date calculations with multiple formats and timezone support
Stopwatch
Measure elapsed time with start, stop, lap, and reset functionalities.
Regex Tester
Build, test, and debug regular expressions with instant match highlighting and flag support
CSV ⇄ JSON Converter
Convert between CSV and JSON formats with smart parsing, custom delimiters, and file upload/download support
Text Sorter & Deduplicator
Sort lines in ascending or descending order, remove duplicates, and strip blank lines
JWT Decoder / Encoder
Decode, encode, and verify JSON Web Tokens (JWT) with HS256 signature support.
Encoders
(5 tools)Base64 Encode/Decode
Convert text to Base64 format and decode Base64 strings
HTML ⇄ Entities Converter
Encode and decode HTML entities
URL Encoder/Decoder
Encode and decode URL components
Base64 ⇄ Image
Convert between Base64 and Image formats
Hash Generator
Generate MD5, SHA1, SHA256, and SHA512 hashes from text input
Converters
(9 tools)JSON Formatter & Validator
Format, validate, and minify JSON data with syntax highlighting and error detection
YAML ⇄ JSON Converter
Convert between YAML and JSON formats with validation and formatting
Text ⇄ Binary ⇄ Hex ⇄ Octal
Convert between text and different number systems
Color Converter
Convert between HEX, RGB, HSL color formats
QR Code Generator
Generate custom QR codes for URLs, text, contact info, and more with customizable colors and sizes
Unix Timestamp Converter
Convert between Unix timestamps and human-readable dates with timezone support and current timestamp generation
Markdown ⇄ HTML Converter
Convert Markdown to HTML and HTML back to Markdown. Support for headers, links, images, code blocks, lists, tables, and more
CSV ⇄ JSON Converter
Convert between CSV and JSON formats with smart parsing, custom delimiters, and file upload/download support
SQL Formatter & Beautifier
Format, beautify, and validate SQL queries with syntax highlighting. Support for multiple SQL dialects including MySQL, PostgreSQL, SQLite, and more
Utilities
(10 tools)Data Generator
Generate realistic sample data for testing, development, and prototyping with customizable schemas
UUID Generator
Generate RFC 4122 compliant UUIDs (v1 and v4) with multiple output formats for databases, APIs, and applications
Calendar
Manage and view events by day, week, or month in a smart calendar interface
Random Number Generator
Generate random numbers between a defined min and max value with one click.
Notepad
Create, edit, save and manage notes directly in your browser.
Regex Tester
Build, test, and debug regular expressions with instant match highlighting and flag support
Stopwatch
Measure elapsed time with start, stop, lap, and reset functionalities.
Today's Date
Get today's date, current time, and perform date calculations with multiple formats and timezone support
Countdown Timer
Set custom countdown timers with pause, resume, and audio alerts. Perfect for productivity and time management
URL Parser & Decoder
Parse, validate, and decode URLs with detailed component breakdown. Extract protocol, hostname, path, query parameters, and fragments from any URL
Text Tools
(4 tools)Text Case Converter
Convert text between different casing conventions
Word/Character Counter
Count words, characters, sentences, and paragraphs in your text
Text Sorter & Deduplicator
Sort lines in ascending or descending order, remove duplicates, and strip blank lines
Lorem Ipsum Generator
Generate Lorem Ipsum placeholder text with customizable paragraphs, words, and formatting options. Perfect for designers, developers, and content creators
Security Tools
(2 tools)Audio Tools
(1 tools)Latest Articles
Read our latest insights on web development, programming tips, and industry best practices.