Online Text Case Converter: Uppercase, Lowercase & More
Transform your text easily with our online tool. Convert text to uppercase, lowercase, camelCase, snake_case, and more. Perfect for developers and writers.
Try Now🛠 Developer Tools by PlayboxJS
Accelerate your JavaScript development with a growing suite of online developer tools — built for frontend engineers, React developers, and full-stack web professionals.
From code minifiers and JSON formatters to regex testers and color pickers — PlayboxJS provides fast, browser-based utilities with zero setup.
🧰 Explore Developer Tools
All-in-One QR Code Tools: Generate, Scan, and Customize
Discover PlayboxJS QR Tools — your complete suite for generating, scanning, and customizing QR codes. Create static or dynamic QR codes, Wi-Fi access QR, contact vCards, and more — all free, secure, and browser-based.
Try NowUUID/GUID Generator & Validator
Generate and validate UUIDs (Universally Unique Identifiers) and GUIDs. Create random or custom UUIDs for databases, applications, and testing.
Try NowFree Online Minify, Beautify, Format & Optimize
Access a complete suite of online JavaScript tools. Minify code, beautify scripts, format JSON, compress files, and optimize performance — all right in your browser with no downloads.
Try NowURL Shortener
Shorten and manage long URLs into compact, trackable links. Useful for digital marketing, email campaigns, and social media.
Try NowFree Online Audio Tools: Record, Trim, Convert & Edit
Explore a collection of powerful online audio tools. Record voice, trim audio, convert formats, edit waveforms, and more — all in your browser with no installation required.
Try NowRegex Tester
Write, test, and debug regular expressions with real-time output. Essential for string matching, pattern testing, and coding.
Try NowEpoch Converter
Convert between Epoch time and human-readable dates. Useful for timestamp management in applications and databases.
Try NowJSON Formatter
Format, validate, beautify, and minify JSON data. Great for API response debugging, data visualization, and web developers.
Try NowSecure Password Generator
Generate strong, secure passwords instantly with advanced customization options. Customize length, character types, and security settings. 100% client-side for maximum privacy.
Try NowColor Picker
Select, preview, and copy HEX, RGB, and HSL color codes. Perfect for UI/UX design, web development, and digital branding.
Try NowFile Difference Checker | Compare Text & Code Online
Easily compare text files, code snippets, or documents side-by-side. Highlight differences, track changes, and merge content with our intuitive online diff checker.
Try NowMore Tools Coming Soon
Stay tuned — we’re building new web-based tools for frontend productivity, UI/UX design, API debugging, testing, formatting, and more.
Have an Idea for a Developer Tool?
PlayboxJS is growing with your feedback. Whether it’s a JavaScript formatter, API testing utility, code diff viewer, or a tool for UI/UX, we’d love to hear your ideas!