Free online tools that run instantly in your browser

JSON Formatter & Validator

Format, validate, minify, and inspect JSON entirely in your browser.

Image Compressor

Compress JPEG, PNG, and WebP files client-side without uploading to a server.

Word Counter

Count words, characters, sentences, paragraphs and reading time instantly.

Image Converter

Convert images to JPG, PNG or WebP. Batch convert, resize, adjust quality and rename files.

Image Resizer

Resize images with custom dimensions or quick presets for Instagram, Facebook, and Twitter.

Image to PDF

Convert multiple images to a single PDF. Reorder pages, set a custom file name and download.

PDF Merge & Split

Merge multiple PDFs into one or split a PDF by extracting specific pages with pdf-lib.

Character Counter

Count characters with platform limit bars for Twitter, Instagram, SMS and more.

Password Generator

Generate strong random passwords with configurable length and character sets.

Case Converter

Convert text to UPPERCASE, lowercase, Title Case, sentence case, or slug-format.

Regex Tester

Test regular expressions against sample text with match highlighting.

CSS Formatter

Format or minify CSS stylesheets in your browser.

CSV to JSON Converter

Convert CSV data to formatted JSON instantly in your browser.

Find and Replace

Find and replace text with plain text or regex patterns.

Percentage Calculator

Calculate percentages, increases and decreases instantly.

Age Calculator

Calculate exact age in years, months and days from a date of birth.

Unit Converter

Convert length, weight, temperature and volume units.

Base64 Encoder Decoder

URL Encoder Decoder

Slug Generator

Timestamp Converter

JavaScript Formatter

HTML Formatter

UUID Generator

Remove Extra Spaces

Text Repeater

Lorem Ipsum Generator

QR Code Generator

Color Converter

Tip Calculator and Bill Splitter

BMI Calculator

Loan Payment Calculator

Compound Interest Calculator

Simple Interest Calculator

Fuel Cost Calculator

Running Pace Calculator

Break-Even Calculator

Markup and Margin Calculator

Aspect Ratio Calculator

Fraction Addition Calculator

Mean, Median and Range Calculator

Population Standard Deviation Calculator

Quadratic Formula Calculator

Circle Area and Circumference Calculator

Triangle Area Calculator

Cylinder Volume Calculator

Density Calculator

Speed, Distance and Time Calculator

Least Common Multiple Calculator

Prime Number Checker

Factorial Calculator

Exponent Calculator

Logarithm Calculator

Scientific Notation Converter

Random Whole Number Generator

Time Duration Calculator

Appliance Electricity Cost Calculator

Ohm's Law Voltage Calculator

Electric Power Calculator

Kinetic Energy Calculator

Gravitational Potential Energy Calculator

Pressure Calculator

Force Calculator

Momentum Calculator

Wavelength Calculator

Pythagorean Theorem Calculator

Sphere Volume and Surface Area Calculator

Cone Volume and Surface Area Calculator

Ratio Calculator