Developer Tools
JSON formatter, Base64 encoder, URL encoder, regex tester, CSS minifier, JWT decoder, and more.
All Developer Tools
JSON Formatter & Validator
Format, validate, and beautify JSON data online. Free JSON formatter with syntax highlighting, error detection, and minify option. Works instantly in your browser.
PopularBase64 Encoder/Decoder
Encode and decode Base64 strings online. Free Base64 converter for text, data, and binary. Instant results in browser — no installations, no uploads, 100% secure.
Base64 Decoder
Decode Base64 encoded text back to original string instantly. Free online Base64 decoder for text and binary data. Browser-based — no uploads, no registration needed.
URL Encoder
Encode URLs and special characters for safe web use and API calls. Free online URL encoder for developers. Works instantly in browser — no uploads or registration needed.
URL Decoder
Decode URL encoded strings back to readable text instantly. Free online URL decoder for developers and testers. Browser-based — no uploads, no server, instant results.
Word Counter
Count words, characters, sentences, and paragraphs in your text. Free online word counter with reading time estimate. Perfect for essays, articles, and social media posts.
Case Converter
Convert text to uppercase, lowercase, title case, sentence case, camelCase, and more. Free online case converter. Instant results, no registration or uploads required.
Slug Generator
Generate SEO-friendly URL slugs from any text. Removes special characters, spaces, and accents. Free online slug generator for blogs, CMS, and web development.
Markdown to HTML Converter
Convert Markdown text to HTML code instantly. Supports headings, lists, links, images, and code blocks. Free online Markdown to HTML converter — no registration needed.
HTML Entity Encoder
Encode special characters to HTML entities for safe web display. Converts <, >, &, quotes, and more. Free online HTML entity encoder — instant results, no uploads needed.
Hash Generator
Generate MD5, SHA-1, SHA-256, SHA-512 cryptographic hashes from any text. Free online hash generator for checksums and data integrity. Browser-based, instant results.
Color Converter
Convert colors between HEX, RGB, HSL, and CMYK formats instantly. Free online color picker and converter for web designers, developers, and graphic artists — no registration required.
Regex Tester
Test and debug regular expressions with real-time match highlighting and flag support (g, i, m). Free online regex tester for JavaScript developers — no registration, works instantly in browser.
JSON to CSV Converter
Convert JSON arrays and objects to CSV format for Excel, Google Sheets, and data analysis tools. Free online JSON to CSV converter — no registration, instant results, works in your browser.
CSV to JSON Converter
Convert CSV data to JSON array format for APIs, web apps, and development workflows. Free online CSV to JSON converter — supports custom delimiters, no registration, instant results in browser.
Image to Base64 Encoder
Encode images to Base64 data URI strings for embedding directly in HTML, CSS, and JavaScript. Free online image to Base64 encoder — supports JPG, PNG, SVG, WebP, no registration required.
Base64 to Image Decoder
Decode Base64 strings and data URIs back to viewable, downloadable image files. Free online Base64 to image decoder — paste any Base64 encoded image, preview and download instantly.
Password Strength Checker
Check password strength and security instantly. Analyze length, character variety, complexity, and common vulnerability patterns. Free browser-based tool — your password never leaves your device.
JavaScript Minifier
Minify JavaScript code online to reduce file size and improve page load speed. Removes comments, whitespace, and dead code. Free browser-based JS minifier — no upload, instant results.
CSS Minifier
Minify CSS code online to reduce stylesheet file size and improve website load speed. Removes comments, whitespace, and redundant rules. Free browser-based CSS minifier — no upload, instant results.
HTML Minifier
Minify HTML code online to reduce file size and improve page load speed. Removes comments, whitespace, and optional tags. Free browser-based HTML minifier — no upload, paste and compress instantly.
SQL Formatter
Format and beautify SQL queries online with syntax highlighting and indentation for MySQL, PostgreSQL, and SQL Server. Free SQL formatter — no registration, paste and format instantly in browser.
Text Diff Checker
Compare two text files or code snippets online with line-by-line diff highlighting. Free online text diff checker for developers — no registration, paste and compare instantly in your browser.
Unix Timestamp Converter
Convert Unix timestamp to human-readable date and time, or convert dates to Unix timestamp. View current timestamp. Free online Unix time converter — no registration, instant results in browser.
JWT Decoder
Decode JWT tokens to view header, payload, and signature data. Verify structure, inspect claims, and debug authentication issues. Free online JWT decoder — no registration, your tokens stay in browser.
JSON to XML Converter
Convert JSON data to XML format instantly for API integration, data exchange, and legacy system compatibility. Free online JSON to XML converter — no registration, instant results in browser.
XML to JSON Converter
Convert XML data to JSON format instantly for modern APIs, web apps, and JavaScript development. Free online XML to JSON converter — no registration, paste and convert in seconds, works in browser.
Base Converter
Convert numbers between binary (base 2), octal (base 8), decimal (base 10), and hexadecimal (base 16) instantly. Free online number base converter for developers — no registration, works in browser.
Cron Parser
Parse and decode cron expressions into human-readable format with next execution times. Free online cron parser for Linux, macOS, and CI/CD scheduling — no registration, instant results.
URL Parser
Parse and analyze URLs into components: protocol, hostname, port, pathname, query parameters, and fragment hash. Decode query strings instantly. Free URL parser tool — no registration required.
User Agent Parser
Parse user agent strings to detect browser name and version, OS, device type, and bot status. Test your own user agent or any UA string. Free user agent analyzer — no registration required.
CSS Beautifier & Minifier
Beautify or minify CSS code online. Format CSS with proper indentation and spacing, or compress for faster page load in production. Free browser-based CSS formatter — no registration, instant results.
JSON to YAML Converter
Convert JSON data to YAML format instantly. Perfect for Kubernetes configs, Docker Compose, Ansible playbooks, and CI/CD pipelines. Free browser-based converter — no registration, instant results.
YAML to JSON Converter
Convert YAML data to JSON format instantly. Parse Kubernetes configs, Docker Compose files, and Ansible playbooks into structured JSON. Free browser-based converter — no registration, instant results.
Text to Speech
Convert text to speech audio online with multiple voices and languages. Listen, preview, and download as audio. Free browser-based TTS tool — no registration, no upload, works instantly.
IP Lookup
Look up any IP address to find its geolocation, country, city, ISP, timezone, and ASN details. Free online IP lookup tool — no registration required, lookup your own IP or any other address.
HTML to Markdown Converter
Convert HTML code to clean Markdown format instantly. Supports headings, links, images, bold, italic, tables, lists, and code blocks. Free browser-based converter — no registration, instant results.