NDNCI provides a comprehensive suite of free online tools designed for developers, content creators, and power users. All tools work directly in your browser, ensuring your data stays private and secure.
Convert text case, encode and decode Base64/URL, compare text differences, and more. Perfect for content editing and data transformation.
Format and beautify JavaScript, CSS, HTML, JSON, and YAML. Minify code for production. Essential tools for web developers.
Generate UUIDs, create secure hashes (MD5, SHA), produce TOTP codes, and create custom signatures. Security-focused utilities for developers.
Convert between color formats (HEX, RGB, HSL), find differences between images, and work with visual content efficiently.
Convert Markdown to HTML and vice versa. Perfect for documentation writers, bloggers, and content creators.
All tools process data locally in your browser. No server uploads, no data storage, complete privacy. Your data never leaves your device.