Developer Tools
Tools for web developers, programmers, and software engineers.
Welcome to our collection of developer tools. Whether you are a professional or just need to get a quick task done, these tools are designed to be fast, reliable, and run entirely in your browser where possible.
JSON Formatter
Format, pretty print, and validate JSON data online.
Base64 Encoder / Decoder
Encode to or decode from Base64 format online.
UUID Generator
Generate random UUIDs (Universally Unique Identifiers) instantly.
URL Encoder / Decoder
Encode or decode URL-encoded strings safely.
Color Converter
Convert colors between HEX, RGB, HSL, and more.
HTML Escaper
Escape or unescape HTML characters online.
Markdown Previewer
Write Markdown and instantly preview the rendered HTML.
Slug Generator
Convert any title or text into an SEO-friendly URL slug.
Random Text Generator
Generate secure, random strings, tokens, or hex values.
JSON Minifier
Compress JSON data by removing all whitespace and newlines.
JSON Validator
Check if your JSON data is valid and find syntax errors instantly.
HTML Minifier
Minify and compress HTML code to reduce page load times.
CSS Minifier
Compress and minify CSS files to optimize web performance.
JS Minifier
Compress and minify JavaScript code for production use.
Regex Tester
Test and debug regular expressions with real-time highlighting.
Diff Checker
Compare two blocks of text or code to see the differences.
Curl to Fetch Converter
Convert cURL commands into clean JavaScript Fetch API code.
SQL Formatter
Beautify and format SQL queries for better readability.
XML Formatter
Format and beautify XML data with proper indentation.
HTML Preview Tool
Write and preview HTML and CSS code in real-time.
Developer Tools – Frequently Asked Questions
Are these developer tools tools free to use?
Yes, all developer tools tools on Nutter tools are completely free to use. There are no subscriptions, hidden fees, or usage limits. You can access and use every tool instantly in your browser.
Do these tools work without an internet connection?
Many of our developer tools tools are designed to work offline directly in your browser. Tools like text processors, formatters, and generators can run without internet access. Look for the “Offline Ready” badge on each tool.
Are my files and data secure when using these tools?
Yes. Most tools process data locally in your browser, which means your files and inputs are not uploaded to any server. This ensures better privacy and security while using Nutter tools.
What types of developer tools tools are available?
Our developer tools tools include a wide range of utilities designed for everyday tasks. Depending on the category, you’ll find tools for formatting, converting, generating, analyzing, and optimizing content quickly and efficiently.
Can I use these tools on mobile devices?
Yes, all tools are fully responsive and optimized for mobile, tablet, and desktop devices. You can use Nutter tools anytime, anywhere without installing any software.