Fast, Free Online Tools
No sign-up required. Mobile-first design. Built for speed, privacy, and a clean experience.
QR Code Generator
Create PNG QR codes with error correction, quiet zone, and custom colors. Works offline in your browser.
Image Resizer
Resize, compress, and convert images. Drag & drop, quality control, and instant preview.
Word & Character Counter
Live counts for words, characters (with/without spaces), sentences, paragraphs, and reading time.
Color Converter & Picker
HEX, RGB, and HSL conversion with instant preview, contrast suggestions, and image pixel picker.
Image + Text Editor
Upload an image and add draggable text layers. Font upload, stroke, shadow, and PNG export.
OCR – Image to Text
Extract text from images in your browser. Supports region selection and English/Korean recognition.
D-Day Countdown
Simple D-Day calculator with shareable permalink. Supports time zones and reminders.
Password Generator
Create strong random passwords with Web Crypto. Length, character sets, copy, and entropy display.
World Clock
See your local time prominently and compare with popular cities worldwide. DST-aware and mobile-friendly.
Why Zuuti?
Ultra-Fast
Single-file utilities with no external libraries. Pages load instantly, every time.
Privacy-First
Everything runs locally in your browser. Your files and data never leave your device.
SEO-Ready
Clean URLs, structured data, and optimized meta tags on every tool page.