Free Online Tools

JSON Formatter

Format, validate, and minify JSON with syntax highlighting.

Data

Base64 Encoder / Decoder

Encode or decode text and files to and from Base64.

Encoding

UUID Generator

Generate v4 or v1 UUIDs, one at a time or in bulk.

Generator

Diff Checker

Compare two texts side by side with highlighted changes.

Text

Case Converter

Convert text to UPPER, lower, Title, camelCase, snake_case, kebab-case.

Text

Word & Character Counter

Count words, characters, sentences, and estimated reading time.

Text

Hash Generator

Generate MD5, SHA-1, SHA-256, and SHA-512 hashes instantly.

Crypto

Timestamp Converter

Convert Unix timestamps to human-readable dates and back.

Time

Timezone Converter

Convert a date and time between any two timezones, DST-aware.

Time

CSV ↔ JSON Converter

Convert CSV spreadsheet data to JSON and back.

Data

JSON ↔ YAML Converter

Convert JSON to YAML and back — great for config files.

Data

URL Encoder / Decoder

Percent-encode text for URLs or decode it back.

Encoding

Regex Tester

Test regular expressions with live match highlighting.

Text

Code Minifier & Beautifier

Minify or pretty-print HTML, CSS, and JavaScript.

Dev

Color Converter

Convert between HEX, RGB, and HSL with a live picker.

Design

Markdown Preview

Write Markdown and see it rendered live as you type.

Text

Image Resizer

Resize JPG, PNG, or WebP images by pixels or percentage.

Image

Image Converter

Convert images between PNG, JPG, and WebP formats.

Image

PDF Merge

Combine multiple PDFs into a single file, in order.

PDF

PDF Split

Extract pages from a PDF or split every page out.

PDF

PDF Compress

Shrink a PDF to fit email limits, keeping it readable.

PDF

PDF to Image

Turn PDF pages into high-quality PNG images.

PDF

PDF Password Remover

Remove a password you already know from a PDF.

PDF

PDF Password Protector

Add a password so only you decide who can open it.

PDF

PDF Watermark

Stamp text like CONFIDENTIAL or DRAFT across every page.

PDF

Invoice Generator

Create a professional invoice and save it as a PDF.

Business

Password Generator

Create strong random passwords with custom length and characters.

Security

BMI Calculator

Calculate Body Mass Index in metric or imperial units.

Calculator

Unit Converter

Convert length, weight, temperature, volume, area, and speed.

Calculator

Percentage Calculator

Percent of a number, percent-of, and percent change.

Calculator

Age Calculator

Exact age in years, months, days — plus birthday countdown.

Calculator

QR Code Generator

Create QR codes for links or text — brand with your own logo.

Generator

Countdown Timer & Stopwatch

Set a countdown or run a stopwatch, right in your browser.

Generator

Random Picker

Pick names from a list, roll dice, or flip a coin — fairly.

Generator

Remove Line Breaks

Clean up text copied from PDFs and emails instantly.

Text

Tip Calculator

Tip, total, and per-person split for any bill.

Calculator

Loan Calculator

Monthly payment and total interest for any loan.

Calculator

HEIC to JPG

Convert iPhone photos to JPGs that open anywhere.

Image

EXIF Remover

Strip GPS location and metadata from photos before sharing.

Privacy

Placeholder Image Generator

Generate a custom-sized placeholder image with any colors and text.

Image

Favicon Generator

Turn a logo into a complete website icon set.

Web

JWT Decoder

Decode JSON Web Tokens with readable expiry times.

Dev

Number Base Converter

Convert live between binary, octal, decimal, and hex.

Dev

Roman Numeral Converter

Convert between numbers and Roman numerals, 1–3999.

Calculator

CIDR / Subnet Calculator

Network address, broadcast, mask, and usable host range.

Dev

Lorem Ipsum Generator

Placeholder text by paragraphs, sentences, or words.

Text

Sort & Remove Duplicates

Sort any list and strip duplicate lines instantly.

Text

HTML Entity Encoder

Escape text for HTML or decode entities back.

Encoding

Slug Generator

Turn titles into clean, SEO-friendly URL slugs.

Web

Meta Tag Generator

Create meta, Open Graph, and Twitter Card tags with a live preview.

Web

Color Palette Extractor

Pull the dominant colors out of any image as hex and RGB swatches.

Image

Cron Expression Builder

Build or parse a cron schedule with a plain-English description.

Dev

CSS Gradient Generator

Build a linear or radial gradient and copy the CSS.

Design

CSS Box-Shadow Generator

Adjust offset, blur, and spread — stack shadows and copy the CSS.

Design

Robots.txt Generator

Build crawler allow/disallow rules and download robots.txt.

Web

XML Sitemap Generator

Paste your URLs and get a ready-to-upload sitemap.xml.

Web

Word Frequency Counter

Find the most repeated words or phrases and their density.

Text

Barcode Generator

Turn any text into a scannable Code 128 barcode.

Generator

Morse Code Translator

Convert text to Morse code and back, with audio playback.

Encoding