Free Developer Tools
Essential utilities for developers. Simple, fast, and always free.
Uptime & SLA Calculator
Convert uptime targets into allowed downtime. Compare 99.9% and 99.99%, and check your remaining error budget.
Online Tally Counter
Count items, clicks, or attendees with buttons and keyboard shortcuts. Saves your tally in this browser when storage is available.
Random Password Generator
Generate strong, secure passwords instantly. Customize length and character types for maximum security.
XML Sitemap URL Extractor
Extract all URLs from any sitemap.xml file instantly. Perfect for SEO audits, site analysis, and content inventory.
Citation Generator
Create perfect citations in APA, MLA, Chicago, and more formats. Support for books, websites, journals, and other sources.
Markdown to PDF Converter
Convert Markdown to professional PDFs instantly. Support for tables, code blocks, and custom themes. 100% client-side.
PDF Password Remover
Remove password protection from PDF files instantly. 100% secure client-side processing - your files never leave your device.
Base64 Encoder/Decoder
Encode and decode Base64 strings instantly. Support for text, files, images, and binary data with live preview.
Image to Base64 Converter
Convert images to Base64 and decode Base64 to images. Resize, optimize, and preview images with instant conversion.
Text Case Converter
Convert text between different cases: UPPERCASE, lowercase, Title Case, camelCase, snake_case, and more.
URL Encoder/Decoder
Encode and decode URLs instantly. Perfect for handling special characters in URLs and query parameters.
JSON Formatter & Validator
Format, validate, and minify JSON data. Beautiful syntax highlighting with error detection.
JSON Schema Editor
Create and validate JSON schemas visually. Perfect for API development, data validation, and documentation. No coding required.
Color Palette Generator
Generate beautiful color palettes from a base color. Export as CSS, Sass, or copy hex codes.
Hash Generator
Generate MD5, SHA-1, SHA-256, and other hash values from text. Useful for checksums and verification.
Word & Character Counter
Count words, characters, paragraphs, and reading time. Real-time stats as you type.
Regex Tester
Test and debug regular expressions with real-time matching, groups, and explanations.
HTML Encoder/Decoder
Encode and decode HTML entities. Convert special characters to HTML entities and back.
UUID Generator
Generate UUID/GUID in various versions (v1, v4). Bulk generation and validation support.
Lorem Ipsum Generator
Generate placeholder text in words, sentences, or paragraphs. Classic Lorem Ipsum and alternatives.
CSS Minifier
Minify CSS code to reduce file size. Remove whitespace, comments, and optimize for production.
JavaScript Minifier
Minify JavaScript code for production. Reduce file size while preserving functionality.
Timestamp Converter
Convert between Unix timestamps and human-readable dates. Support for different time zones.
Credit Card Validator
Validate credit card numbers using Luhn algorithm. Detect card type and format validation.
Image Compressor
Compress images without losing quality. Support for JPEG, PNG, WebP with batch processing and size optimization.
Text Diff Checker
Compare two texts and highlight differences. Perfect for code review, document comparison, and content editing.
Markdown Editor
Write and preview Markdown in real-time. Export to HTML, PDF, or copy formatted text with syntax highlighting.
Color Picker & Eyedropper
Pick colors from images or screen, convert between HEX, RGB, HSL formats. Perfect for designers and developers.
Email Validator
Validate email addresses for syntax, domain, and deliverability. Bulk validation with detailed results.
Percentage Calculator
Calculate percentages, percentage increases/decreases, find what percentage one number is of another, and more.
Binary Converter
Convert between binary, decimal, hexadecimal, and octal number systems. Support for signed integers and more.
Text Reverser
Reverse text character by character, word by word, or line by line. Perfect for palindromes and text effects.
Unit Converter
Convert between metric and imperial units for length, weight, temperature, volume, area, and speed.
Tip Calculator
Calculate tips and split bills among multiple people. Perfect for restaurants, bars, and services.
Random Number Generator
Generate single or multiple random numbers with custom ranges. Perfect for lottery, raffles, and random selection.
Unix Timestamp Converter
Convert Unix timestamps to human-readable dates and vice versa. Support for seconds, milliseconds, and timezone conversion.
URL Parser
Parse URLs into components: protocol, hostname, port, pathname, query parameters, and hash fragments.
Backslash Escape/Unescape
Escape and unescape backslash characters in strings for JSON, JavaScript, regex, and other programming contexts.
SQL Formatter
Format, beautify, and minify SQL queries with proper indentation and syntax highlighting. Support for all major databases.
Cron Expression Parser
Parse and explain cron expressions in plain English. Validate syntax and see next execution times for scheduled jobs.
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