All Tools

Browse our complete directory of 110+ free online tools across 17 categories. Every tool runs in your browser.

Encoding & Decoding

7 tools

Base64 Encode & Decode

Encode and decode Base64 strings

URL Encode & Decode

Encode and decode URL/percent-encoded strings

HTML Entity Encode & Decode

Encode and decode HTML entities

XML Escape & Unescape

Escape and unescape XML special characters

JWT Decode & Inspect

Decode and inspect JWT tokens

Text to Binary Converter

Convert between text and binary representation

ASCII Table & Converter

ASCII reference table and text converter

Formatters & Beautifiers

5 tools

JSON Formatter & Beautifier

Format, beautify, and validate JSON

JSON to TypeScript

Convert JSON to TypeScript interfaces

Markdown Preview

Live Markdown to HTML preview

SQL Formatter & Beautifier

Format and beautify SQL queries

XML Formatter & Validator

Format, beautify, and validate XML

Generators

10 tools

UUID Generator

Generate random UUID v4 identifiers

Nano ID Generator

Generate compact, URL-friendly unique IDs

Password Generator

Generate secure random passwords

Lorem Ipsum Generator

Generate placeholder text

Random Number Generator

Generate random numbers in any range

Coin Flip Simulator

Flip a virtual coin - heads or tails

Dice Roller

Roll virtual dice for games and RPGs

JWT Builder & Signer

Build and sign JWT tokens visually

Random String Generator

Generate random strings and tokens

QR Code Generator

Generate QR codes from text or URLs

Hash & Crypto

5 tools

MD5 Hash Generator

Generate MD5 hash from text

SHA-256 Hash Generator

Generate SHA-256 hash from text

SHA-1 Hash Generator

Generate SHA-1 hash from text

SHA-512 Hash Generator

Generate SHA-512 hash from text

Bcrypt Hash Generator & Checker

Generate and verify bcrypt hashes

Developer Converters

4 tools

JSON to YAML Converter

Convert between JSON and YAML formats

CSV to JSON Converter

Convert between CSV and JSON formats

.env File Parser & Converter

Parse .env files to JSON, YAML, Docker, shell

SQL to MongoDB Query Converter

Convert SQL SELECT to MongoDB find()

Number & Color Converters

3 tools

Number Base Converter

Convert between binary, octal, decimal, hex

Color Converter

Convert between HEX, RGB, HSL, CMYK

File Size Converter

Convert between file size units

Text Tools

5 tools

Case Converter

Convert text between different cases

Slugify Text

Convert text to URL-friendly slugs

Line Sort & Deduplicate

Sort, deduplicate, and clean up lines

Word & Character Counter

Count words, characters, and more

String Length Analyzer

Analyze string length and byte size

Regex Tools

1 tool

Regex Tester & Debugger

Test and debug regular expressions

Date & Time

7 tools

Unix Timestamp Converter

Convert Unix timestamps to dates

Date Difference Calculator

Calculate the difference between two dates

Age Calculator

Calculate exact age from birthdate

Cron Expression Parser

Parse cron expressions to plain English

Crontab Generator

Build cron expressions with a visual UI

Timezone Converter

Convert times between timezones

ISO Date Formatter

Format and parse ISO 8601 dates

Math & Science

5 tools

Percentage Calculator

Calculate percentages and changes

Aspect Ratio Calculator

Calculate and convert aspect ratios

GPA Calculator

Calculate your GPA from course grades

Square Footage Calculator

Calculate area and square footage

Grade Calculator

Calculate overall grade and final exam score needed

Image & Media

14 tools

Image Format Converter

Convert between PNG, JPG, and WebP

HEIC to JPG/PNG Converter

Convert iPhone HEIC photos to JPG/PNG

Image Compressor

Compress images to reduce file size

Image Resizer

Resize images to any dimensions

Merge PDF

Combine multiple PDFs into one

Split PDF

Split PDF into separate pages

Compress PDF

Reduce PDF file size

Rotate PDF

Rotate PDF pages

JPG to PDF Converter

Convert images to PDF

PDF to Image Converter

Convert PDF pages to JPG/PNG images

PDF to Text Extractor

Extract text from PDF files

SVG to PNG Converter

Convert SVG files to PNG images

Add Page Numbers to PDF

Add page numbers to PDF files

Word to PDF Converter

Convert Word documents to PDF

Validators

7 tools

JSON Validator

Validate and debug JSON syntax

Email Address Validator

Validate email address format

URL Validator

Validate URL format and structure

Credit Card Number Validator

Validate card numbers with Luhn check

YAML Validator

Validate and debug YAML syntax

JSON Schema Validator

Validate JSON data against a JSON Schema

Docker Compose Validator

Validate Docker Compose files for issues

Network & Web

3 tools

URL Parser & Analyzer

Parse URLs into their components

Subnet Calculator

Calculate subnet details from CIDR

HTTP Status Codes Reference

HTTP status code reference guide

Utilities

3 tools

Diff Checker

Compare text and find differences

Chmod Calculator

Calculate Unix file permissions

Countdown Timer & Stopwatch

Countdown timer and stopwatch with lap times

Financial

11 tools

Mortgage Calculator

Calculate mortgage payments and amortization

Loan Calculator

Calculate loan payments and total interest

Compound Interest Calculator

Calculate compound interest over time

Tip Calculator

Calculate tips and split the bill

Discount Calculator

Calculate discounts and savings

Savings Calculator

Calculate savings growth with compound interest

Auto Loan Calculator

Calculate car payments and total cost

Retirement Calculator

Project retirement savings and income

ROI Calculator

Calculate return on investment and CAGR

Paycheck Calculator

Calculate net take-home pay from salary

Debt Payoff Calculator

Compare debt payoff strategies and timeline

Health & Fitness

7 tools

BMI Calculator

Calculate Body Mass Index

Calorie & TDEE Calculator

Calculate daily calorie needs and TDEE

TDEE Calculator

Calculate TDEE and daily calorie needs

Body Fat Calculator

Calculate body fat percentage (US Navy method)

Ideal Weight Calculator

Calculate ideal weight by multiple formulas

Macro Calculator

Calculate daily macros for your diet goals

Pregnancy Due Date Calculator

Calculate pregnancy due date and milestones

Unit Converters

13 tools

Unit Converter

Convert length, weight, temperature, volume

Inches to CM Converter

Convert inches to centimeters

CM to Inches Converter

Convert centimeters to inches

KG to LBS Converter

Convert kilograms to pounds

LBS to KG Converter

Convert pounds to kilograms

Celsius to Fahrenheit Converter

Convert Celsius to Fahrenheit

Fahrenheit to Celsius Converter

Convert Fahrenheit to Celsius

Miles to KM Converter

Convert miles to kilometers

KM to Miles Converter

Convert kilometers to miles

Feet to Meters Converter

Convert feet to meters

Meters to Feet Converter

Convert meters to feet

Ounces to Grams Converter

Convert ounces to grams

Grams to Ounces Converter

Convert grams to ounces