Miscellaneous

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 between decimal, fractional, and American odds formats. Calculate implied probability and potential payouts from betting odds.

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

Test your touchscreen multitouch capabilities by tracking multiple simultaneous touch points with WebGL visualization

Generate random Sudoku puzzles with different difficulty levels. Create printable puzzles and view solutions.

Enter a Sudoku puzzle and get the solution instantly. Input numbers in the 9x9 grid and solve any valid Sudoku puzzle.

Test your geography knowledge by finding countries on an interactive world map

Timer with rotation alerts for grilling, BBQ and cooking. Set total cooking time and rotation intervals to get audio notifications when it's time to flip or turn your food.

Generate audio tones at specific frequencies with different waveforms (sine, square, triangle, sawtooth). Useful for hearing tests, audio calibration, and sound experiments.

Generate various horn sounds including car and truck horns with adjustable volume and duration

Create beautiful custom wedding invitation cards with customizable styles, colors, and text

Create beautiful, customizable birthday party invitation cards with balloons, confetti, and fun designs. Download or print instantly.

Calculate horse gestation dates, due dates, and track pregnancy progress for mares

Calculate the optimal TV viewing distance based on screen size, or find the ideal TV size for your room. Supports 1080p, 4K, and 8K resolutions.

Calculate cosmic radiation exposure during air travel based on flight duration, altitude, and route type

Calculate rent costs across different payment periods, price per square unit, and total expenses including utilities

Test your mouse scroll wheel functionality with real-time feedback, direction detection, and scroll statistics

Generate printable draw lots slips with participant names for Secret Santa gift exchanges. Print, cut, and use for random draws at parties and events.

Free online metronome for musicians. Adjustable BPM, time signature, and visual beat indicator. Perfect for practice sessions.

Generate RTSP URLs for IP cameras and video streaming with authentication, custom paths, and common device presets

Practice morse code by pressing and holding the space bar to create dot and dash sounds

Convert coordinates between Overworld and Nether dimensions in Minecraft. Calculate where to build your portal for optimal travel.

Calculate the distance between two points in Minecraft with 2D/3D measurements and travel time estimates

Upload a .torrent file to view its metadata including name, info hash, file list, trackers, piece information, and generate a magnet link

Estimate how long your tattoo will stay vibrant. Calculate fade time based on ink color, body location, sun exposure, skin type, and aftercare.

Calculate acceptance rates for college admissions, job applications, scholarships, and graduate programs. Shows acceptance rate, rejection rate, selectivity level, and odds.

Calculate how long it will take to grow your hair to a desired length based on hair type, age, and health factors

Generate crossword puzzles from custom words and clues with an interactive grid layout

Calculate Equivalent Isotropically Radiated Power (EIRP) from transmit power, antenna gain, and cable loss. Essential for RF engineers and wireless network planning.