100 Free Online Tools

100 professional tools for PDF, images, text, development, colors, unit conversion, calculators, generators, and more. All in your browser — no uploads, no sign-ups, no limits.

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PDF Tools

PDF

PDF Merger

Combine multiple PDFs into one

 PDF

PDF Compressor

Reduce PDF file size

 PDF

PDF Splitter

Split and extract PDF pages

 PDF

PDF to Word

Extract text from PDF documents

 PDF

PDF to Image

Convert PDF pages to images

 PDF

Image to PDF

Convert images to PDF

 PDF

PDF to JPG

Convert PDF pages to JPEG images

 PDF

PDF Rotator

Rotate PDF pages

 PDF

PDF Page Remover

Delete pages from PDF

 PDF

PDF Metadata Editor

Edit PDF title, author, keywords
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Image Tools

Image

Image Compressor

Compress and optimize images

 Image

Image Resizer

Resize, crop and set DPI

 Image

Background Remover

Remove image backgrounds

 Image

PNG to JPG

Convert PNG to JPEG

 Image

JPG to PNG

Convert JPEG to PNG

 Image

WebP to JPG

Convert WebP to JPEG

 Image

WebP to PNG

Convert WebP to PNG

 Image

GIF to JPG

Convert GIF frames to JPEG

 Image

Image to Base64

Convert image to data URI

 Image

Image Cropper

Crop images with drag selection

 Image

Color Picker

Pick colors from any image

 Image

Grayscale Converter

Convert images to black & white

 Image

SVG to PNG

Convert SVG to PNG image

 Image

Image Filter

Apply filters to images

 Image

Image Format Converter

Convert between image formats
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Text Tools

Text

Text Case Converter

Convert between text cases

 Text

Word Counter

Count words, chars, reading time

 Text

Text Reverser

Reverse any text instantly

 Text

Text Scrambler

Scramble text characters

 Text

Lorem Ipsum Generator

Generate placeholder text

 Text

Text Diff Checker

Compare two texts side by side

 Text

Character Counter

Count characters, words, sentences

 Text

Text to Slug

Generate URL-friendly slugs

 Text

Text to Binary

Convert text to binary code

 Text

Text to Morse Code

Convert text to Morse code
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Developer Tools

Dev

JSON Formatter

Format and prettify JSON

 Dev

JSON Validator

Validate and lint JSON

 Dev

Base64 Encoder/Decoder

Encode/decode Base64 text

 Dev

URL Encoder/Decoder

Encode and decode URLs

 Dev

Password Generator

Generate strong passwords

 Dev

HTML Previewer

Live HTML preview editor

 Dev

CSS Minifier

Minify CSS code

 Dev

JS Minifier

Minify JavaScript code

 Dev

Regex Tester

Test regular expressions

 Dev

UUID Generator

Generate UUID v4 identifiers
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Color Tools

Color

Hex to RGB

Convert hex colors to RGB

 Color

RGB to Hex

Convert RGB to hex colors

 Color

HSL Converter

Convert between HSL, RGB, HEX

 Color

Color Palette Generator

Generate color schemes

 Color

Contrast Checker

Check WCAG contrast ratios
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Unit Converters

Units

Length Converter

Convert length units

 Units

Weight Converter

Convert weight and mass units

 Units

Temperature Converter

Convert temperature units

 Units

Area Converter

Convert area units

 Units

Volume Converter

Convert volume units

 Units

Speed Converter

Convert speed units

 Units

Time Converter

Convert time units

 Units

Data Storage Converter

Convert storage units

 Units

Currency Converter

Convert world currencies

 Units

Fuel Efficiency Converter

Convert MPG, L/100km, km/L
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Calculators

Calc

Percentage Calculator

Calculate percentages

 Calc

Age Calculator

Calculate exact age

 Calc

Tip Calculator

Calculate restaurant tips

 Calc

Mortgage Calculator

Monthly payment & amortization

 Calc

BMI Calculator

Body mass index calculator

 Calc

Discount Calculator

Calculate sale prices

 Calc

Loan Calculator

Estimate monthly payments

 Calc

Interest Calculator

Simple & compound interest

 Calc

Date Difference Calculator

Days between dates

 Calc

Time Duration Calculator

Calculate time between two times

 Calc

Unit Price Calculator

Compare product prices

 Calc

Scientific Calculator

Trig, log, exponent calculator

 Calc

Fraction Calculator

Add, subtract, multiply fractions

 Calc

GST Calculator

Calculate GST inclusive/exclusive

 Calc

Calorie Calculator

BMR and daily calorie needs
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Generator Tools

Gen

QR Code Generator

Generate QR codes

 Gen

Barcode Generator

Generate barcodes

 Gen

Random Number Generator

Generate random numbers

 Gen

Random Color Generator

Generate random colors

 Gen

Password Strength Checker

Check password security

 Gen

Avatar Generator

Create initials avatars

 Gen

Fake Data Generator

Generate test data

 Gen

CSS Gradient Generator

Create CSS gradients

 Gen

Box Shadow Generator

Create CSS box shadows

 Gen

Meme Generator

Create custom memes
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Conversion Tools

Convert

JSON to CSV

Convert JSON to CSV format

 Convert

CSV to JSON

Convert CSV to JSON format

 Convert

JSON to YAML

Convert JSON to YAML format

 Convert

YAML to JSON

Convert YAML to JSON format

 Convert

Number Base Converter

Convert between number bases

 Convert

Roman Numeral Converter

Convert Roman numerals

 Convert

Epoch Converter

Unix timestamp converter

 Convert

Text to ASCII Art

Create ASCII art from text

 Convert

Markdown to HTML

Convert MD to HTML

 Convert

HTML to Markdown

Convert HTML to Markdown
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Security & Network Tools

Security

HTML Entity Converter

Encode/decode HTML entities

 Security

MAC Address Generator

Generate MAC addresses

 Security

Hash Generator

MD5, SHA-1, SHA-256 hashes

 Security

URL Parser

Parse URL components

 Security

Credit Card Validator

Luhn algorithm validation

Why Use ToolKit Free Online Tools?

All 100 tools run entirely in your browser using JavaScript. Your files never leave your device — no uploads to any server. This means your data stays private and secure. No sign-ups, no email required, no file size limits. Whether you need to merge PDFs, compress images, convert between formats, calculate your mortgage, generate QR codes, or validate JSON — we have you covered with 100 professional tools.