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287+ Free Online Tools
Built for Everyone

Fast, private, and client-side. No login, no tracking, no data stored.

287+
Tools
100%
Free
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Servers Used
∞
Uses

📝 Text Tools

📝

Duplicate Lines Remover — Remove Duplicate Lines Online

Free online duplicate lines remover. Remove duplicate lines from text, keep unique lines only.
📝

Email Extractor — Extract Email Addresses from Text

Free online email extractor. Extract all email addresses from any block of text.
📝

Email Validator — Validate Email Addresses Online

Free online email validator. Validate one or many email addresses with format checking.
📝

Extract Hashtags from Text

Extract hashtags and mentions from any text or social media post. Free online hashtag extractor.
📝

Extract Numbers from Text

Extract all numbers from any text. Free online number extractor tool.
📝

Keyword Density Checker

Check keyword density in your text for SEO optimization. Free online keyword density analyzer.
📝

Line Break Remover — Remove Newlines Online

Free online line break remover. Remove or replace newlines and line breaks from text instantly.
📝

Lorem Ipsum Generator — Generate Placeholder Text

Free lorem ipsum generator. Generate any amount of placeholder text for your designs and mockups.
📝

Palindrome Checker — Check if Text is a Palindrome

Free online palindrome checker. Instantly check if a word or phrase is a palindrome.
📝

Random Text Line Picker — Pick Random Line from List

Free online random line picker. Pick one or more random lines from a list instantly.
📝

Reading Time Calculator

Calculate reading time for any text. Free online reading time estimator.
📝

Text Cleaner — Remove Extra Spaces & Clean Text

Free online text cleaner. Remove extra spaces, tabs, special characters and clean messy text instantly in your browser.
📝

Text Repeater — Repeat Text N Times Online

Free online text repeater. Repeat any text N times with custom separators.
📝

Text Replacer — Find & Replace Text Online

Free online text replacer. Find and replace any word or phrase with regex support.
📝

Text Reverser — Reverse Text, Words or Lines Online

Free online text reverser. Reverse characters, words, or lines of any text instantly.
📝

Text Separator — Split Text by Delimiter

Free online text separator. Split text by any custom delimiter — comma, space, newline, tab and more.
📝

Text Sorter — Sort Lines Alphabetically

Sort lines of text alphabetically, numerically, by length, or randomly. Free online text sorter.
📝

Text to Slug — Convert Text to URL Slug

Free online text to slug converter. Convert any text to a clean, SEO-friendly URL slug.
📝

Unique Word Finder — Remove Duplicate Words

Find unique words in text or remove duplicate words. Free online unique word finder tool.
📝

URL Extractor — Extract All URLs from Text

Free online URL extractor. Extract all links and URLs from any block of text instantly.
📝

Word Count — Count Words, Characters & Lines

Free online word counter. Count words, characters, sentences, paragraphs and lines in real time.

🔄 Encoding

🔄

Base64 to Text Decoder

Free online Base64 decoder. Decode Base64 encoded strings back to plain text.
🔄

Text to Base64 Encoder — Encode Text Online

Free online Base64 encoder. Encode text, strings or URLs to Base64 format instantly.
🔄

CSV to JSON Converter

Free online CSV to JSON converter. Convert CSV data to JSON format instantly.
🔄

HTML Entity Decoder

Free online HTML entity decoder. Convert HTML entities back to regular characters.
🔄

HTML Entity Encoder — Encode HTML Entities Online

Free online HTML entity encoder. Convert special characters to HTML entities.
🔄

JSON Beautifier — Format & Pretty Print JSON

Free online JSON beautifier. Format, pretty print, and indent JSON data with ease.
🔄

JSON to CSV Converter

Free online JSON to CSV converter. Convert JSON arrays to CSV format.
🔄

JSON to XML Converter

Free online JSON to XML converter. Convert JSON to XML format instantly in your browser.
🔄

JSON Validator — Validate JSON Syntax Online

Free online JSON validator. Validate JSON syntax and get detailed error messages.
🔄

Punycode to Unicode Converter

Convert Punycode ACE domain names back to Unicode (IDN) format online.
🔄

ROT13 Decoder

Free online ROT13 decoder. Decode ROT13 encoded text instantly.
🔄

ROT13 Encoder

Free online ROT13 encoder. Encode text using the ROT13 cipher instantly.
🔄

Unicode to Punycode Converter

Convert Unicode internationalized domain names (IDN) to Punycode format online.
🔄

URL Decoder — Decode Percent-Encoded URLs

Free online URL decoder. Decode percent-encoded URLs and query strings back to readable text.
🔄

URL Encoder — Percent Encode URLs Online

Free online URL encoder. Percent-encode special characters in URLs and query strings.
🔄

XML to JSON Converter

Free online XML to JSON converter. Convert XML data to JSON format instantly.

💻 Developer

💻

CSS Formatter & Beautifier

Free online CSS formatter and beautifier. Format CSS code and also minify it.
💻

CSS Minifier

Free online CSS minifier. Remove whitespace and comments to reduce CSS file size.
💻

Diff Checker

Compare two text files line by line
💻

Fake Data Generator — Test Names, Emails & More

Generate random test data: names, emails, addresses, phone numbers, UUIDs, and more. Free online fake data generator.
💻

HTML Formatter & Beautifier — Format HTML Code Online

Free online HTML formatter and beautifier. Format and indent HTML code for readability.
💻

HTML Minifier — Minify HTML Code Online

Free online HTML minifier. Remove whitespace and comments from HTML to reduce file size.
💻

HTML Tags Stripper — Remove HTML Tags Online

Free online HTML tag stripper. Remove all HTML tags from content to get plain text.
💻

HTML to Markdown Converter

Free online HTML to Markdown converter. Convert HTML code to Markdown format instantly.
💻

JavaScript Formatter & Beautifier

Free online JavaScript formatter. Format and beautify JavaScript code online.
💻

JavaScript Minifier

Free online JavaScript minifier. Compress JS code by removing whitespace and comments.
💻

Markdown to HTML Converter

Free online Markdown to HTML converter. Convert Markdown documents to HTML instantly.
💻

Regex Match Extractor

Extract all matches of a regex from text
💻

Regex Replace Tool

Find and replace using regex
💻

Regex Tester — Test Regular Expressions Online

Test and debug regular expressions live. Highlights matches, view groups. Free online regex tester.
💻

SQL Beautifier — Format SQL Queries Online

Free online SQL beautifier. Format and indent SQL queries for readability.
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🧮 Math & Numbers

🧮

Average Calculator — Mean, Median & Mode

Free online average calculator. Calculate mean, median, mode, sum, min and max from a list of numbers.
🧮

Decimal to Fraction Converter

Free online decimal to fraction converter. Convert any decimal number to a simplified fraction.
🧮

Discount Calculator — Sale Price & Savings

Free online discount calculator. Find sale price, savings amount, and discount percentage instantly.
🧮

Even or Odd Number Checker

Free online even/odd number checker. Check if any number is even or odd, and get divisibility info.
🧮

Fibonacci Generator — Fibonacci Sequence Tool

Free online Fibonacci generator. Generate Fibonacci sequence to any number of terms instantly.
🧮

Fraction to Decimal Converter

Free online fraction to decimal converter. Convert any fraction to its decimal equivalent instantly.
🧮

GCD Calculator — Greatest Common Divisor

Free online GCD calculator. Find the Greatest Common Divisor (GCD/HCF) of multiple numbers.
🧮

LCM Calculator — Least Common Multiple

Free online LCM calculator. Find the Least Common Multiple of two or more numbers instantly.
🧮

Log Calculator — Logarithm Base Calculator

Free online log calculator. Calculate logarithms in any base: natural log, log base 10, log base 2, and custom bases.
🧮

Number Base Converter — Binary, Hex, Octal

Free online number base converter. Convert between binary, decimal, octal, and hexadecimal instantly.
🧮

Percentage Calculator — Find % of Any Number

Free online percentage calculator. Find percentage of a number, percentage change, and more instantly.
🧮

Permutation & Combination Calculator

Free online permutation and combination calculator. Calculate nPr and nCr instantly.
🧮

Prime Number Checker

Free online prime number checker. Check if any number is prime or composite instantly.
🧮

Prime Number Generator — List Primes in Range

Free online prime number generator. Generate all prime numbers in any given range instantly.
🧮

Ratio Calculator — Simplify & Solve Ratios

Free online ratio calculator. Simplify ratios, solve missing values, and compare ratios instantly.
🧮

Rounding Calculator

Free online rounding calculator. Round numbers to any decimal places or significant figures.
🧮

Scientific Notation Converter

Free online scientific notation converter. Convert numbers to and from scientific notation instantly.
🧮

Standard Deviation Calculator

Free online standard deviation calculator. Calculate population and sample standard deviation, variance, mean, and more.

🏥 Health

🏥

BAC Estimator

Blood Alcohol Content (Widmark Formula)
🏥

BMI Calculator

Calculate Body Mass Index (kg/m2).
🏥

BMR Calculator (Basal Metabolic Rate)

Calculate calories burned at rest using Mifflin-St Jeor.
🏥

Body Fat % Estimator (US Navy)

Estimate body fat using US Navy method.
🏥

Body Surface Area

Calculate BSA (Mosteller formula)
🏥

Calorie Deficit Planner

Calculate weight loss timeline
🏥

Child Height Predictor

Mid-parental height formula
🏥

Cycling Wattage Estimator

Rough power output on a flat road
🏥

Target Heart Rate

Calculate training zones (Karvonen method)
🏥

Ideal Weight Calculator

Calculate ideal weight using multiple formulas.
🏥

Lean Body Mass Calculator

Calculate body weight excluding fat (Boer Formula)
🏥

Macronutrient Planner

Calculate macros based on diet goals
🏥

One-Rep Max (1RM)

Estimate your 1RM (Epley formula)
🏥

Ovulation Calculator

Estimate fertile window
🏥

Period Cycle Predictor

Estimate your next period
🏥

Pregnancy Due Date

Naegele's rule calculator
🏥

Protein Requirement

Determine daily protein intake needs
🏥

Running Pace Calculator

Calculate Min/Mile or Min/Km
🏥

Steps to Mile Converter

Calculate distance from step count
🏥

TDEE Calculator

Total Daily Energy Expenditure based on activity level.
🏥

Trimester Math

Find current trimester by week
🏥

VO₂ Max Approximator

Estimate using Resting & Max HR
🏥

Waist-to-Hip Ratio (WHR)

Calculate waist-to-hip circumferences
🏥

Daily Water Intake Calculator

How much water should you drink based on weight and activity.

🎨 Color & Design

🎨

Analogous Palette Generator

Next to each other on the color wheel
🎨

CSS Border Radius Generator

Generate CSS border-radius values visually. Create custom rounded corners and copy the CSS.
🎨

Box Shadow Generator — CSS Shadow Tool

Free online CSS box-shadow generator. Create custom box shadows and copy the CSS instantly.
🎨

Color Blindness Math

Simulate Protanopia/Deuteranopia
🎨

Color Picker & HEX/RGB/HSL Converter

Free online color picker. Pick any color and get HEX, RGB, HSL, and HSV values instantly.
🎨

Complementary Palette

Opposite on the color wheel
🎨

WCAG Contrast Checker — Accessibility Color Contrast

Check color contrast ratio for WCAG accessibility compliance. Free online contrast checker tool.
🎨

CSS Triangle Generator

Generate CSS-only triangles using border tricks. Copy ready-to-use CSS for any direction.
🎨

Gradient Generator — CSS Linear Gradient Tool

Free online CSS gradient generator. Create beautiful linear gradients and copy the CSS code instantly.
🎨

HEX to CMYK

Direct conversion from Hex
🎨

HEX to HSL Color Converter

Convert HEX color codes to HSL, RGB, and get the full color breakdown. Free online color converter.
🎨

HEX to RGB Converter

Convert #HEX to RGB values
🎨

Hex Transparency / Alpha Generator

Add transparency to HEX colors
🎨

HSV to HEX Converter

Convert HSV/HSB to Hex
🎨

Monochromatic Palette

Tints, tones and shades of a hue
🎨

Random Color Palette Generator

Generate beautiful random color palettes instantly. Free online color palette generator for designers.
🎨

RGB to CMYK

Convert RGB values to CMYK
🎨

RGB to CSS RGBA

Easily format RGB for CSS
🎨

Shade Generator

Darken a color incrementally
🎨

Split Complementary Palette

Base plus two adjacent to its opposite
🎨

Tint Generator

Lighten a color incrementally
🎨

Triadic Palette Generator

Evenly spaced around color wheel

🏗️ Dev Builders

🏗️

String to Color Generator

Generate unique color from any string
🏗️

CRON Expression Builder

Build and understand CRON expressions
🏗️

CRON to English Translator

Explain CRON expressions in plain text
🏗️

Hash Generator (SHA-256)

Generate SHA-256 hash of any text
🏗️

.htaccess Redirect Generator

Generate 301 redirects for Apache
🏗️

HTML Table Generator

Convert CSV to

tag

🏗️

JWT Decoder

Decode JWT tokens client-side
🏗️

Lorem Ipsum Generator

Generate placeholder Latin text
🏗️

Meta Tag Generator

Generate standard SEO head tags
🏗️

OpenGraph Meta Generator

Social media share tags builder
🏗️

Password Generator

Generate strong random passwords
🏗️

Regex Tester

Test regular expressions with live highlighting
🏗️

Robots.txt Generator

Generate crawler rules for your site
🏗️

SQL Insert Statement Generator

Generate SQL INSERT statements from CSV data
🏗️

UUID Generator

Generate UUID v4 (Random)

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