Technology Calculators
Networking, hashing, base64, and dev tools. 36 free tools.
Most Popular
Cloud Cost Estimator
Estimate monthly cloud hosting costs for AWS, Azure, or GCP based on compute, storage, and bandwidth.
App Development Cost Calculator
Estimate app development cost by platform, features, complexity, and team location.
Website Load Time Calculator
Calculate estimated page load time based on page size, requests, and connection speed.
Code Complexity Calculator
Estimate bugs, test cases, and review time from lines of code and project type.
API Rate Limit Calculator
Calculate API rate limits needed for your application based on users and request patterns.
Monitor Size Calculator
Find the ideal monitor size based on viewing distance, resolution, and usage type.
PC Power Supply Calculator
Calculate PSU wattage needed for your PC build based on CPU, GPU, and components.
SSD Lifespan Calculator
Estimate how long your SSD will last based on TBW rating and daily write volume.
Video File Size Calculator
Calculate video file size from resolution, bitrate, duration, and codec.
3D Printing Cost Calculator
Calculate per-print cost including filament, electricity, time, and failure rate.
Regex Tester & Builder
Test regular expressions with live highlighting, captured groups, and common pattern library.
All Technology Calculators
Data Storage Converter
Convert between bits, bytes, KB, MB, GB, TB and binary units
Bandwidth Calculator
Calculate data transfer time, bandwidth, and hosting requirements
Download Time Calculator
Estimate how long a file takes to download at a given internet speed
PPI Calculator (Pixels Per Inch)
Calculate a screen’s pixels per inch from resolution and diagonal size
Mouse DPI Calculator
Calculate effective DPI (eDPI) and cm/360 for gaming mouse sensitivity
Video Bitrate Calculator
Calculate video bitrate, file size, or duration for any recording
Password Entropy Calculator
Measure password strength in bits of entropy and estimated crack time
URL Encoder / Decoder
Percent-encode or decode URLs and query strings instantly
Morse Code Translator
Translate text to Morse code and Morse code back to text
Text Case Converter
Convert text to UPPERCASE, lowercase, Title Case, camelCase and more
Lorem Ipsum Generator
Generate placeholder Lorem Ipsum text by words, sentences or paragraphs
Hex Calculator
Add, subtract, multiply and divide hexadecimal numbers
URL Slug Generator
Turn any title into a clean, SEO-friendly URL slug
Binary Calculator
Add, subtract, multiply and divide binary numbers with ease
ASCII Converter
Convert text to ASCII codes and ASCII codes back to text
RAID Calculator
Calculate usable storage and fault tolerance for any RAID level
Color Contrast Checker
Check text/background color contrast against WCAG AA and AAA levels
IP Subnet Calculator
Calculate subnet masks, CIDR notation, network, and broadcast addresses
UNIX Timestamp Converter
Convert epoch timestamps to human-readable dates and vice versa
Base64 Encode/Decode
Easily encode text to Base64 or decode Base64 strings to text
UUID / GUID Generator
Generate bulk Version 4 UUIDs instantly in your browser
Hash Generator
Generate secure MD5, SHA-1, and SHA-256 hashes instantly
Password Generator
Generate highly secure, randomized passwords locally in your browser
Cron Expression Generator
Build and schedule cron expressions with a simple visual interface
Audio File Size Calculator
Calculate audio file size from format, bitrate, duration, and number of tracks