Client Side Tools
6290 tools available
These tools run entirely in your browser. Everything you enter, from text and numbers to images, PDFs, and other files, is processed locally on your device and never uploaded to a server. No sign up or installation needed.
Generate FDA-style nutrition facts labels for food products with customizable serving sizes, calories, macronutrients, vitamins, and minerals. Download as image or print.
Generate random license keys, serial numbers, and activation codes with customizable patterns and formats
Validate if a date is after another date or the current date using the validator.js isAfter function
Calculate the CO2 emissions and carbon footprint of your vehicle based on distance traveled, fuel type, and consumption
Calculate your personal lucky number based on name, birthdate, phone number and address using numerology principles
Read EPUB ebooks directly in your browser. Upload an EPUB file to view chapters, navigate with table of contents, customize reading settings, and enjoy a comfortable reading experience.
Read FB2 (FictionBook) ebooks directly in your browser. Upload an FB2 file to view chapters, navigate with table of contents, customize reading settings, and enjoy a comfortable reading experience.
Convert EPUB ebook files to HTML format. Extract book content, metadata, chapters, and images from EPUB files for web viewing or further processing.
Edit EPUB ebook metadata including title, author, publisher, ISBN, and more. Upload your EPUB file and modify its metadata information.
Calculate and predict your next period date based on cycle length. Enter your last period start date to see predicted menstrual cycle dates on a visual calendar.
Calculate GPU VRAM requirements for running Large Language Models with different quantization levels. Supports popular models like Llama, Mistral, and Qwen.
Create fake terminal screenshots and mockups. Customize hostname and username, type any text, and export as an image.
Extract plain text from HTML documents by removing all tags, scripts, styles, and comments
Extract and analyze all hyperlinks from HTML code with detailed information including URL, text, type, and attributes
Generate random public holidays from any country worldwide. Select a country and year to get random national holidays from over 199 countries.
Convert between decimal, fractional, and American odds formats. Calculate implied probability and potential payouts from betting odds.
Generate random lottery numbers for popular lotteries like Powerball, Mega Millions, EuroMillions, and more
Generate random Keno numbers for Eesti Loto. Pick 1-10 numbers from 1-64 following official Estonian lottery rules.
Calculate camera sensor crop factor relative to full-frame 35mm. Compare sensor sizes, convert focal lengths to full-frame equivalents, and understand field of view differences between camera systems.
Calculate photo film shelf life based on storage temperature, humidity, film type, and ISO. Uses Arrhenius equation for accurate degradation estimates.
Track and display scores for sports games, matches, and competitions with customizable team names
Paste Markdown and visualize the heading structure as an interactive tree. Analyze h1–h6 hierarchy, detect nesting issues, and view heading statistics.
Visualize and analyze the heading structure of HTML documents with an interactive tree view
Test your touchscreen multitouch capabilities by tracking multiple simultaneous touch points with WebGL visualization