Developer Tools

Convert text between different case formats: uppercase, lowercase, camelCase, PascalCase, snake_case, and more

Count words, characters, paragraphs, and reading time

Compare two text inputs and highlight differences

Remove duplicate lines from text while preserving order

Remove line breaks and join text into a single line

Find and replace text with support for regex patterns

Convert text to URL-friendly slugs

Encode special characters to HTML entities and decode HTML entities back to characters

Generate placeholder text in words, sentences, or paragraphs for design mockups

Escape and unescape strings for JSON, JavaScript, HTML, and URL contexts

Inspect characters: show Unicode codepoint, name, hex, decimal, HTML entity, and binary

Sort lines alphabetically, numerically, by length, or shuffle randomly

Convert text to binary, hexadecimal, and decimal representations and back

Format, validate, and beautify JSON data with syntax highlighting

Convert JavaScript objects to JSON strings

Parse JSON strings into readable format

Format and beautify HTML code with proper indentation

Format and beautify SQL queries with syntax highlighting

Automatically detect and fix common JSON errors like trailing commas and missing quotes

Live Markdown editor with rendered preview — supports GitHub Flavored Markdown

Format and validate TOML configuration files

Format and minify XML documents with syntax validation

Validate and reformat CSV files with custom delimiters and preview

Minify JSON by removing whitespace and comments to reduce file size

Test regular expressions with live matching and explanations

Explain code snippets in plain English with detailed breakdowns

Generate and test regular expressions with common patterns and real-time matching

Encode and decode URLs and URL components — percent-encoding for query strings and paths

Convert numbers between decimal, hexadecimal, binary, and octal bases

Look up MIME types by file extension or find extensions for a given MIME type

Generate QR codes from text or URLs — download as PNG

Format numbers with commas, currency symbols, scientific notation, ordinals, and locale settings

Encrypt and decrypt text using various algorithms (AES, DES) with custom keys

Generate MD5, SHA1, SHA256 hashes from text input

Generate secure passwords with customizable length and character sets

Generate UUIDs (v1, v4) with bulk generation options

Format and validate .env files with syntax highlighting

Decode and validate JWT tokens with header and payload inspection

Encode text or files to Base64 and decode Base64 back to plain text

Generate signed JSON Web Tokens with custom header, payload, and HS256 secret

Convert between CSV and JSON formats with customizable delimiters

Convert between YAML and JSON formats with validation

Convert between XML and JSON formats with attribute handling

Validate JSON data against JSON Schema with detailed error reporting

Merge multiple JSON objects with conflict resolution options

Flatten nested JSON objects or unflatten dot-notation objects

Minify or beautify CSS code with compression options

Convert HTML to JSX with proper attribute transformations

Convert between HEX, RGB, HSL color formats with live preview

Generate CSS gradients with live preview and multiple color stops

Generate CSS box-shadow with live preview and multiple shadows

Convert between CSS units: px, rem, em, vw, vh, and pt with configurable base font size

Generate color palettes — shades, tints, complementary, analogous, and triadic colors

Generate realistic fake data for testing (names, emails, addresses, etc.)

Compose and test HTTP requests with headers and body data

Generate browser user-agent strings for different browsers and devices

Convert between epoch timestamps and human-readable dates

Look up IP address information including location, ISP, and your current IP

Generate .gitignore files for different programming languages and frameworks

Format and lint Dockerfile with best practices suggestions

Format and validate YAML files with syntax highlighting

Generate NGINX configuration files for common use cases

Build cron expressions with natural language explanations

Calculate Linux file permissions — set rwx checkboxes to get octal and symbolic notation

Calculate network address, broadcast, subnet mask, host range, and usable IPs from CIDR notation

Look up DNS records (A, AAAA, MX, TXT, CNAME) for any domain using DNS-over-HTTPS