Free Online Tools

📝

Word Counter

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

Text

🔤

Case Converter

UPPERCASE, lowercase, Title Case, camelCase, snake_case and more.

Text

🔒

Password Generator

Generate strong random passwords with customisable options.

Security

🌍

NationBuilder

Run an AI-driven nation simulator with diplomacy, economic structure, GDP PPP tracking, and your own OpenRouter key.

Simulation

📋

JSON Formatter

Pretty print, minify and validate JSON with syntax highlighting.

Developer

🔍

Regex Tester

Test regular expressions with real-time highlighting and match groups.

Developer

🔄

Diff Checker

Compare two blocks of text side-by-side with highlighted differences.

Developer

🎨

Color Picker

Pick colors visually. Convert between HEX, RGB, HSL formats.

Design

🔐

Base64 Encoder

Encode and decode text or files to and from Base64 format.

Developer

🔗

URL Encoder

Encode and decode URLs and query parameters with percent-encoding.

Developer

🔏

Hash Generator

Generate SHA-256, SHA-384, SHA-512 and SHA-1 hashes from text.

Security

⏰

Timestamp Converter

Convert between Unix timestamps, ISO 8601, and human-readable dates.

Developer

🎲

UUID Generator

Generate random v4 UUIDs with bulk mode, format options, and one-click copy.

Developer

📄

Markdown Previewer

Write Markdown and see a live HTML preview. Supports headers, code blocks, tables and more.

Developer

📃

Lorem Ipsum Generator

Generate lorem ipsum placeholder text. Choose paragraphs, sentences, or words with one-click copy.

Text

🔏

JWT Decoder

Decode and inspect JSON Web Tokens. View header, payload, claims and expiration status.

Developer

🌈

CSS Gradient Generator

Create linear, radial and conic CSS gradients visually with multiple color stops and one-click copy.

Design

🕓

Cron Expression Parser

Parse and build cron expressions. See human-readable descriptions and next run times.

Developer

🔢

Number Base Converter

Convert between binary, octal, decimal and hexadecimal with a live bit visualiser.

Developer

🖼

Text to Image

Convert text into downloadable PNG images with custom fonts, colors, sizes, and padding.

Design

📱

QR Code Generator

Generate QR codes for URLs, text, Wi-Fi, email and phone. Customise colors and download as PNG or SVG.

Developer

🔗

Slug Generator

Convert any text into a clean, URL-friendly slug with custom separators and unicode support.

Developer

⚖

Contrast Checker

Check WCAG 2.1 color contrast ratios. Test AA and AAA compliance for any foreground/background pair.

Design

📈

Line Sorter

Sort lines alphabetically, numerically, by length, reverse, shuffle, or remove duplicates.

Text

💠

Box Shadow Generator

Create CSS box shadows visually with multiple layers, inset shadows, presets and one-click copy.

Design

📐

HTML Entity Encoder

Encode and decode HTML entities. Supports named, decimal and hex formats with a quick-reference table.

Developer

📐

CSS Unit Converter

Convert between px, rem, em, pt, vw and vh units with configurable base sizes and a quick-reference table.

Design

📊

Markdown Table Generator

Build Markdown tables visually with a spreadsheet editor. Set alignment, tab between cells, copy output.

Developer New

📐

Aspect Ratio Calculator

Find ratios, resize dimensions proportionally, and browse common screen and video resolutions.

Design New

🎨

Favicon Generator

Generate favicons from emoji or text. Pick colours, preview at multiple sizes, and download as PNG or SVG.

Design New

🔄

JSON ↔ YAML Converter

Convert between JSON and YAML formats instantly. Supports nested objects, arrays, and all scalar types.

Developer New

🔒

Chmod Calculator

Convert between symbolic (rwxr-xr-x) and numeric (755) Unix file permissions with common presets.

Developer New

🏷

Meta Tag Generator

Generate SEO, Open Graph and Twitter Card meta tags with live Google and social card preview.

Developer New

📊

CSV to JSON Converter

Convert between CSV, TSV and delimited data and JSON. Supports headers, type detection, and bi-directional conversion.

Developer New

📡

HTTP Status Codes

Complete reference for every HTTP response status code with descriptions and usage examples.

Developer

💾

SQL Formatter

Format, beautify and minify SQL queries with syntax highlighting, adjustable indentation and keyword casing.

Developer New