Your All-in-One Utility Toolkit
Free online tools for developers and creators. Generate QR codes, barcodes, convert colors, format JSON, and more.
Available Tools
13 free tools including QR codes, barcodes, PDF/image converters, and more. Click on any tool to get started.
QR Code Generator
Generate custom QR codes from any text or URL. Perfect for marketing, tracking, and sharing.
Barcode Generator
Create barcodes in multiple formats. Generate EAN, CODE128, UPC, and more barcodes.
Image Converter
Convert images between PNG, JPEG, WebP, and GIF formats instantly.
Password Generator
Generate strong, secure random passwords with customizable options.
URL Shortener
Create short, memorable URLs from long web addresses for social media and messaging.
Text to Speech
Convert any text into natural-sounding audio. Great for accessibility and content creation.
Color Converter
Convert between HEX, RGB, HSL, and HSV color formats instantly.
JSON Formatter
Format, validate, and beautify JSON data with syntax highlighting.
Base64 Encoder/Decoder
Encode and decode text and files using Base64 encoding.
Markdown to HTML
Convert markdown syntax to HTML code instantly. Perfect for developers.
Unit Converter
Convert between length, weight, temperature, and other measurement units.
Hash Generator
Generate MD5, SHA1, SHA256, and SHA512 hashes for security and verification.
Why Choose CardBox Tools?
Lightning Fast
Real-time processing with instant results. No waiting, no delays.
100% Private
All processing happens in your browser. Your data never leaves your device.
Completely Free
No registration, no fees, no limitations. Use as much as you want.