Free online tools
for everyone
Use fast utilities like password generator, percentage calculator, word counter and color converter — straight in your browser.
Age Calculator
Calculate your exact age in years, months and days from your date of birth.
Day Counter
Count the number of days, weeks and months between two dates. Ideal for deadlines and planning.
Percentage Calculator
Calculate percentages, discounts, increases and percentage changes simply and instantly.
Word Counter
Count words, characters, sentences and paragraphs in any text. Includes reading time estimate.
Character Counter
Count characters and check the limits for Twitter, Instagram, LinkedIn, TikTok and other social networks.
Lorem Ipsum Generator
Generate Lorem Ipsum placeholder text in paragraphs, sentences or words for prototypes and layouts.
JSON Formatter & Validator
Format, validate and minify JSON online. Paste your JSON and get a clean, indented result.
Number Base Converter
Convert numbers between binary, octal, decimal and hexadecimal. Built for developers.
Roman Numeral Converter
Convert Arabic numbers to Roman numerals and back. Supports I to MMMCMXCIX (1–3999).
Strong Password Generator
Generate strong, random passwords with options for length, case, numbers and symbols.
BMI Calculator
Calculate your Body Mass Index (BMI) and see your WHO classification with a visual indicator.
List Sorter
Sort lists alphabetically A–Z or Z–A, shuffle randomly, remove duplicates and number items.
Base64 Encoder & Decoder
Encode and decode text in Base64 and URL Encoding online. An essential tool for developers.
Discount Calculator
Calculate sale prices with a percent discount, find the % off between two prices, or the percentage change.
Case Converter (UPPER / lower / Title)
Convert text to UPPERCASE, lowercase, Title Case, Sentence case or invert the case. No character limit.
Slug Generator
Turn any title into a URL-friendly slug: removes diacritics, swaps spaces for hyphens and strips special characters. Great for SEO.
UUID Generator
Generate random, cryptographically secure UUID (GUID) v4 values. Up to 100 at a time, with or without hyphens. For developers.
URL Encoder & Decoder
URL encode and decode online. Convert spaces, accents and special symbols to %XX percent-encoding for query strings.
Text Diff Checker
Compare two texts and see exactly what was added, removed or unchanged. Git-style visual diff.
Duplicate Line Remover
Remove duplicate lines from a list. Options to ignore case, trim spaces, sort and keep only uniques.
Line Counter
Count lines, blank lines, words and characters in real time. Works with text or source code.
Text Reverser
Reverse characters, words or lines of any text. Full Unicode and emoji support.
Color Converter HEX/RGB/HSL
Convert colors between HEX, RGB and HSL with live preview. Built for designers and web developers.
Hash Generator MD5/SHA
Calculate MD5, SHA-1, SHA-256, SHA-384 and SHA-512 hashes of any text. Native Web Crypto API.
About gettool.app
gettool.app is a collection of free online utilities that run directly in your browser. No installation, no account, no personal data. Every tool is processed locally for privacy and speed. Perfect for daily use, work, school and personal life.