VioTools is a suite of 8 free, browser-based utility tools built to help students, engineers, developers, and everyday users tackle common tasks with speed and accuracy. There is nothing to download and no sign-up required — every tool runs entirely in your browser, keeping your data private and your workflow seamless across desktop and mobile devices.
Tools Included
- QR Code Generator: Instantly create QR codes for URLs, plain text, email addresses, phone numbers, and Wi-Fi credentials — ready to scan and share
- Color Picker: Pick, identify, and convert colors between HEX, RGB, HSL, and other formats for design and development workflows
- Unit Converter: Convert between 100+ units across 11 categories — length, mass, temperature, volume, speed, energy, pressure, area, power, angle, and time
- Password Generator: Generate strong, randomized, and secure passwords instantly to protect your online accounts
- Calculator: Perform everyday arithmetic and advanced scientific calculations including trigonometry, logarithms, exponents, and factorials — with history tracking
- Equation Solver: Solve linear, quadratic, polynomial, exponential, and logarithmic equations, plus compute derivatives, definite integrals, summations, and algebraic expansions
- Graphing Calculator: Plot and visualize mathematical functions with interactive zoom, real-time coordinate tracking, multi-graph support, and image export
- Time, Date & Age Calculator: Calculate time differences, date durations, exact age, and future dates — ideal for project planning, event countdowns, and work-hour tracking
Textify
Image to Text Converter
Convert images to editable text effortlessly with our powerful OCR app! Capture text from any image with your camera or gallery. Perfect for documents, books, receipts, notes, signs, and more. No more manual typing – just scan and get accurate text in seconds!
Key Features
- Fast OCR extraction: Advanced optical character recognition technology extracts text quickly and accurately from photos
- Camera or Gallery: Take a new photo with your camera or select existing photos from your gallery
- Easy editing and use: View extracted text, copy it to the clipboard, or share it instantly
- Save as PDF: Export the extracted text as a professional PDF file for easy saving and sharing
- Scan history: Access a dedicated history section to browse past scans, images, and extracted texts at any time
Calculator
+ Unit Converter
Calculator + Unit Converter is a fast, reliable, and easy-to-use calculator for everyday math, school, work, and science — all in a clean, modern design. See your answers update instantly as you type with live results, switch to scientific mode for exponents, roots, trigonometry, logarithms, and factorials, and read long calculations comfortably on a spacious multi-line display. Calculation history lets you review, reuse, and tap past results, while smart thousands separators keep big numbers easy to read in both portrait and landscape.
A beautifully designed unit converter that makes everyday calculations quick and effortless. Convert values across 12 essential unit categories – all in one simple app.
Key Features
- Live Results: Answers update instantly as you type — no need to press equals
- Basic & Scientific Modes: Everyday arithmetic plus exponents, roots, trigonometry, logarithms, and factorials
- Clear Multi-Line Display: Read long expressions and results without scrolling or truncation
- 12 Unit Categories: Convert between length, mass, time, temperature, area, volume, speed, energy, power, pressure, light, and angle
- Calculation History: Review, reuse, and tap past results to keep working
- Light & Dark Themes: Comfortable readability in any lighting
- All-in-One: Calculator and converter in a single powerful app