Free Online Tools
Fast, private, browser-based utilities. Nothing you type or upload is sent to a server.
Popular Tools
(11)Word & Character Counter
Paste or type text below. Counts update live, nothing leaves your browser.JSON Formatter & Validator
Paste JSON below to format, minify or validate it. Processing happens entirely in your browser.Unit Converter
Hundreds of conversion combinations across 12 categories.Color Converter
Convert between HEX, RGB and HSL. Edit any field and the others update automatically.Currency Converter
Convert between currencies using live exchange rates.Password Generator
Generate strong random passwords. Nothing is sent to a server — generated locally.QR Code Generator
Enter text or a URL and get a downloadable QR code.Regex Tester
Test your regular expression against a sample string live.CSS Gradient Generator
Pick two colors, copy the ready-made CSS code.Loan Payment Calculator
Enter the principal, annual interest rate, and term to calculate the monthly payment.VAT Calculator
Add VAT to a price or extract it from a VAT-inclusive price.Length Converter
Browse 440+ conversionsText Tools
(15)Word & Character Counter
Paste or type text below. Counts update live, nothing leaves your browser.
Text Case Converter
Convert your text to different letter case formats.
Text Reverser
Reverse characters, words, or lines.
Slug Generator
Convert your text into a URL-friendly slug.
Lorem Ipsum Generator
Generate placeholder text for your designs.
Text Diff Checker
Compare two texts and see line-by-line differences.
Character Frequency Counter
See character and word frequency in your text.
Duplicate Line Remover
Remove repeated lines and keep only unique ones.
Line Sorter
Sort lines alphabetically, reverse alphabetically, or by length.
Whitespace Remover
Clean up extra spaces, tabs, and unnecessary line breaks.
Find & Replace
Search and replace within text. Regular expressions supported.
Number to Words
Spell out a number as words (handy for invoices and official documents).
Social Media Character Counter
See how your post fits across different platform character limits.
Word Frequency Counter
See the most frequently used words in your text.
Text Encryptor / Decryptor
Encrypt your text with a password using AES-256. Nothing is sent to a server.
Converters
(37)JSON Formatter & Validator
Paste JSON below to format, minify or validate it. Processing happens entirely in your browser.
Base64 Encode / Decode
Convert text to Base64 or decode Base64 back to plain text.
URL Encode / Decode
Convert text to or from URL encoding.
HTML Entity Encode / Decode
Convert special characters to HTML entities or decode them.
Number Base Converter
Convert between binary, octal, decimal and hexadecimal.
Roman Numeral Converter
Convert between numbers and Roman numerals (1-3999).
Unit Converter
Hundreds of conversion combinations across 12 categories.
Timestamp Converter
Convert between Unix timestamps and readable dates.
Color Converter
Convert between HEX, RGB and HSL. Edit any field and the others update automatically.
Morse Code Translator
Convert between text and Morse code.
Image Compressor
Compress JPG or PNG images directly in your browser. Files never leave your device.
Length Converter
Convert between meters, kilometers, miles, yards, feet, inches and more.
Weight Converter
Convert between kilograms, grams, pounds, ounces and more.
Temperature Converter
Convert between Celsius, Fahrenheit and Kelvin.
Area Converter
Convert between square meters, hectares, acres and more.
Volume Converter
Convert between liters, milliliters, gallons and more.
Speed Converter
Convert between km/h, mph, knots and m/s.
Time Unit Converter
Convert between seconds, minutes, hours, days and more.
Data Size Converter
Convert between bytes, KB, MB, GB and TB.
Pressure Converter
Convert between pascal, bar, PSI, atmosphere and more.
Energy Converter
Convert between joules, calories, kilowatt-hours and more.
Power Converter
Convert between watts, kilowatts, horsepower and more.
Angle Converter
Convert between degrees, radians, gradians and more.
CSV → JSON
Paste your CSV data, get the JSON output.
JSON → CSV
Paste a JSON array, get the CSV output.
Markdown → HTML
Write Markdown, get a live HTML preview and code.
XML Formatter
Turn your XML data into an indented, readable structure.
Binary ↔ Text
Convert between text and binary (0s and 1s) code.
ROT13 Encode / Decode
The classic ROT13 letter-shift cipher. Encoding and decoding are the same operation.
Caesar Cipher
Shift letters by a chosen amount to encrypt or decrypt.
Unicode Code Point Lookup
See the Unicode code point of any character.
Currency Converter
Convert between currencies using live exchange rates.
Time Zone Converter
Convert a time between different UTC offsets.
Image Resizer
Resize your image by entering a width and height.
Image → Base64
Upload an image, get the Base64 (data URI) output.
Base64 → Image
Paste Base64 code, preview and download the image.
Image Format Converter
Convert your image to JPG, PNG or WebP.
Generators
(13)Password Generator
Generate strong random passwords. Nothing is sent to a server — generated locally.
Password Strength Checker
Type your password to see its strength instantly. Nothing is stored or sent anywhere.
UUID Generator
Generate random v4 UUIDs (GUIDs).
Hash Generator
Compute hash values of your text. Calculation happens entirely in your browser.
QR Code Generator
Enter text or a URL and get a downloadable QR code.
Random Number Generator
Enter a min and max value to generate a random number.
Passphrase Generator
Generate strong, easy-to-remember multi-word passphrases.
Username Generator
Generate random username suggestions.
WiFi QR Code Generator
Enter your network name and password, get a QR code that connects automatically when scanned.
vCard QR Code Generator (Digital Business Card)
Enter your contact details, get a QR code that adds to contacts when scanned.
Favicon Generator
Upload an image, download favicon PNGs in multiple sizes.
Placeholder Image Generator
Generate placeholder images at any size for your designs.
Text to Speech
Listen to your text with a voice of your choice.
Developer Tools
(16)JWT Decoder
Paste a JWT to view its header and payload. Decoding only, no signature verification.
Regex Tester
Test your regular expression against a sample string live.
Cron Expression Explainer
Enter a cron expression to see exactly when it runs.
CSS Minifier
Minify your CSS to reduce file size.
CSS Beautifier
Turn your CSS into readable, indented code.
HTML Minifier
Minify your HTML to reduce file size.
SQL Formatter
Turn your SQL query into readable code.
SEO Meta Tag Generator
Generate ready-to-use meta tag HTML for your page.
Open Graph Tag Generator
Generate share-card tags for Facebook, LinkedIn and other platforms.
robots.txt Generator
Build your robots.txt rules visually.
UTM Link Builder
Build a UTM-tagged link for campaign tracking.
Email Format Validator
Checks the email address format. Does not verify the address actually exists.
IBAN Validator
Validate the format and check digit of an IBAN.
Card Number Validator (Luhn)
Checks whether a card number is mathematically valid using the Luhn algorithm. No real card data is stored.
HTTP Status Code Reference
Search for an HTTP status code or its name.
Common Port Numbers
Search for a port number or service name.
Design Tools
(6)Color Contrast Checker
Calculate the contrast ratio between two colors and see WCAG AA/AAA compliance.
CSS Gradient Generator
Pick two colors, copy the ready-made CSS code.
CSS Box Shadow Generator
Adjust the settings, copy the ready-made CSS code.
CSS Border Radius Generator
Adjust the corners, copy the ready-made CSS code.
Color Palette Generator
Pick a color, see harmonious palette suggestions.
Image Color Picker
Upload an image, click on it to pick a color.
Calculators
(15)Age Calculator
Enter your birth date to find your exact age.
BMI Calculator
Enter your height and weight to find your body mass index.
Percentage Calculator
Different types of percentage calculations.
Discount Calculator
Enter the original price and discount rate.
Tip Calculator
Enter the bill amount, tip percentage and number of people.
Days Between Dates Calculator
Enter a start and end date.
GPA Calculator
Add courses with credits and letter grades to calculate your GPA.
Loan Payment Calculator
Enter the principal, annual interest rate, and term to calculate the monthly payment.
Compound Interest Calculator
See how your investment grows over time with compound interest.
Simple Interest Calculator
Enter principal, rate and time to calculate simple interest.
VAT Calculator
Add VAT to a price or extract it from a VAT-inclusive price.
Fraction Simplifier
Reduce a fraction to its simplest form.
GCD / LCM Calculator
Enter multiple numbers separated by commas.
Prime Number Checker
Check whether a number is prime and see its factors.
Business Days Calculator
Calculate the number of weekday (non-weekend) business days between two dates.