Free tools for digital & computing calculations and conversions. All tools run in your browser with no data sent to any server.
All Digital & Computing Tools
ASCII Table
ASCII codes with decimal, hex, and character lookup
Decimal to Hex Converter
Convert decimal numbers to hexadecimal
UUID Generator
Generate random UUIDs instantly
Binary to Decimal Converter
Convert binary numbers to decimal
Base Converter
Convert numbers between bases 2 and 36
Data Size Converter
Convert between bytes, KB, MB, GB, and TB
Binary File Size Calculator
Convert file sizes between decimal and binary units with bits/bytes support
Data Rate Converter
Convert between Kbps, Mbps, Gbps, and more
Storage RAID Calculator
Calculate usable RAID capacity for RAID 0, 1, 5, 6, and 10
Screen Resolution Converter
Scale resolutions while preserving aspect ratio
Password Generator
Generate secure random passwords
Password Strength Checker
Check password strength and estimate crack time
Data Transfer Time Calculator
Estimate upload and download time from file size and speed
Bitrate File Size Calculator
Calculate file size from bitrate and duration, or vice versa
Data Usage Cost Estimator
Estimate monthly data usage and costs by activity type
Internet Speed Converter
Convert between internet speed units (Mbps, Gbps, MB/s, KB/s) and calculate download times
DPI Calculator
Calculate DPI, PPI, print sizes, and resolution for screens and printing
Internet Bandwidth Calculator
Estimate download and upload times for any file size at various internet speeds
Screen Resolution Calculator
Calculate PPI, aspect ratio, and display quality metrics for any screen size and resolution
Image Resize Calculator
Calculate new image dimensions while preserving aspect ratio
Timecode Calculator
Add, subtract, and convert timecodes across frame rates for video editing
Frame Rate Conversion Calculator
Convert between video frame rates and calculate duration changes, speed, and dropped frames
Storage Recording Time Calculator
Calculate how long you can record video or audio on any storage device
Disk Space Analyzer
Find the biggest files and folders on your drive to free up disk space