u0v0u - Your Creative Toolbox

Welcome to u0v0u — a free online creative toolbox with 25+ professional tools designed for creators, developers, and everyday users.

Our Free Online Tools

QR Code Generator — Create beautiful, customizable QR codes with branded styling, color grading, and logo embedding.
Image Compressor — Shrink image file sizes while preserving quality, all processed in your browser.
Video & Audio Converter — Convert between MP4, MOV, AVI, MKV, WebM, MP3, WAV, and more formats instantly.
Markdown Editor — Write and preview Markdown documents with premium themes and export options.
Developer Toolbox — JSON Formatter, Base64 Encoder, URL Codec, Regex Tester, Timestamp Converter, Color Picker, and more.
Batch Watermarker — Add text or image watermarks to 50+ images at once with professional controls.
Image Converter — Convert between WebP, JPEG, and PNG formats with batch resize support.
PDF Tools — Merge, split, compress, and convert PDF documents.
BMI Calculator — Interactive health and body mass index calculator with detailed analysis.
And 15+ more tools!

All tools run directly in your browser — no installation or uploads required. Your data stays private and secure.

Available in English, 中文, 日本語, Español, and Français.