Toolbox

URL encoding & decoding

Create QR codes from URLs and text

Upper / lower / camel / snake case

Count characters, words & lines in real-time

Generate dummy text

Compare two texts side by side

Check basic grammar issues

Highlight keywords in text

Measure text readability

Remove duplicate lines from text

Real-time Markdown preview

Display kanji in large size

Test regular expressions in real-time

Generate unified diff patches

Apply a unified diff patch to text and generate the edited text

Convert SVG files to PNG format

Convert XML to JSON format

Resize images

Convert image formats

Remove image background (chroma key)

Generate gradient color scales

Optimize and minify SVG code

Edit and preview SVG path data

Convert between SVG and Data URI

Generate ICO files from images

Generate multi-size favicons

Format JavaScript / CSS / HTML

Generate robots.txt

Generate Web App Manifest

Preview Open Graph tags

Preview Twitter Cards

Check HTML special character escaping

Minify or beautify CSS

Minify or beautify JavaScript

Validate JSON against JSON Schema

Generate HTTP headers (CSP, Cache-Control, etc.)

Visual cubic-bezier curve editor

Basic arithmetic calculator

Convert length/weight/temperature etc.

Encrypt/decrypt text with AES

Decode JWT tokens

Base32 encode/decode

Base58 encode/decode

Base85 encode/decode

UUEncode encode/decode

Calculate CRC32 checksum

Calculate Adler32 checksum

Generate secure unique IDs

Generate bcrypt hashes in the browser

Encode / Decode

Format, minify & validate

HEX / RGB / HSL conversion

Unix time <-> date conversion

Read and save images from clipboard

Convert between CSV and JSON

Convert between TSV and CSV

Convert between Markdown and HTML

Convert between YAML and JSON

Convert between TOML and JSON

Generate UUID v4

SHA-1 / SHA-256 / SHA-384 / SHA-512

Generate secure passwords

3D ring frequency visualization

FFT binary piano roll

Convert between OKLCH, RGB and HEX

Generate harmonious color palettes

Check color contrast ratio against WCAG

Generate Material Design 3 theme colors

Visual cron expression builder

Calculate age and elapsed days from birthdate

Generate random names, addresses, emails, etc.

Stopwatch with lap times