Tools for focused work
Search calculators, converters and utilities. Your input stays in your browser whenever possible.
251 tools found
JSON Formatter
Format, validate and minify JSON with clear error messages.
Base64 Converter
Encode text to Base64 or decode it locally in your browser.
Case Converter
Convert text to upper, lower, title, camel, snake or kebab case.
Percentage Calculator
Calculate percentages, increases and decreases instantly.
BMI Calculator
Calculate body mass index and view the standard range.
Unix Timestamp Converter
Convert Unix timestamps and local date times in both directions.
Word Counter
Count words, characters, lines and estimated reading time.
UUID Generator
Generate secure UUID v4 identifiers in batches.
URL Encoder & Decoder
Encode or decode URL components safely in your browser.
HTML Entity Converter
Escape HTML characters or convert entities back to text.
Hash Generator
Generate SHA-256, SHA-384 and SHA-512 hashes locally.
Regular Expression Tester
Test regular expressions with flags and highlighted match details.
Number Base Converter
Convert integers between binary, octal, decimal and hexadecimal.
Password Generator
Create strong cryptographically random passwords with custom options.
Lorem Ipsum Generator
Generate placeholder paragraphs for layouts and prototypes.
Random Number Generator
Generate unbiased random integers within a selected range.
Length Converter
Convert metric and imperial units with instant precision.
Temperature Converter
Convert Celsius, Fahrenheit and Kelvin temperatures.
Compound Interest Calculator
Project investment growth with regular contributions.
Loan Payment Calculator
Estimate monthly payments, total interest and repayment cost.
Date Difference Calculator
Find the exact number of days between two dates.
Age Calculator
Calculate age in years, months and days from a birth date.
Image Resizer
Resize JPG, PNG and WebP images locally with aspect ratio control.
Grayscale Image Converter
Turn photos and avatars grayscale without uploading them.