All Developer Tools

Word Counter

Count characters, words, sentences and lines instantly

Case Converter

Convert text to UPPER, lower, Title, camelCase, snake_case

String Reverse

Reverse characters or words in any string

Duplicate Line Remover

Paste a list and strip duplicate lines instantly

Sort Lines

Sort lines alphabetically, numerically or randomly

Text Diff Checker

Side-by-side comparison of two text blocks

Lorem Ipsum Generator

Generate placeholder text by words, sentences or paragraphs

Slug Generator

Convert a title to a URL-friendly slug

Text Repeater

Repeat a string N times with optional separator

Number Base Converter

Convert between binary, octal, decimal and hex

Roman Numeral Converter

Convert to and from Roman numerals

Random Number Generator

Generate random numbers with range and quantity options

Percentage Calculator

What is X% of Y? What % is X of Y?

Ratio Calculator

Simplify or solve ratios instantly

HTML Encoder/Decoder

Encode special characters to HTML entities and back

URL Encoder/Decoder

Encode and decode URL query strings

HTML Formatter

Prettify minified or messy HTML with proper indentation

HTML Minifier

Strip whitespace from HTML for production

HTML to Markdown

Convert HTML markup to clean Markdown

Markdown to HTML

Convert Markdown to HTML markup

Meta Tag Generator

Fill a form, get copy-paste meta tags

OG Tag Generator

Generate Open Graph tags for social sharing

Robots.txt Generator

Form-based tool to build a valid robots.txt file

.htaccess Generator

Generate redirects, HTTPS rules and directory protection

Favicon Generator

Upload an image, download .ico and PNG favicon sizes

CSS Formatter

Beautify and format minified CSS

CSS Minifier

Compress CSS by removing whitespace and comments

Box Shadow Generator

Visual sliders generate copy-ready CSS box-shadow

Border Radius Generator

Visual tool to generate CSS border-radius values

Gradient Generator

Create linear and radial gradients, copy CSS

Flexbox Visualizer

Toggle flexbox properties and see a live preview

CSS Grid Generator

Define rows and columns visually, copy CSS

px ↔ rem Converter

Convert px to rem and back with configurable base size

CSS Specificity Calc

Paste a selector and get its specificity score

JS Formatter

Beautify and format minified JavaScript

JS Minifier

Minify JavaScript for production use

JSON Formatter

Validate, pretty-print and compact JSON

JSON to CSV

Convert JSON arrays to CSV format

JSON to XML

Convert JSON to XML markup

JSON Path Tester

Test JSONPath expressions against sample data

Base64 Encoder/Decoder

Encode and decode Base64 strings and files

URL-Safe Base64

Encode and decode URL-safe Base64

MD5 Hash Generator

Generate MD5 hashes from text input

SHA Hash Generator

Generate SHA-1, SHA-256 and SHA-512 hashes

HMAC Generator

Generate HMAC signatures with a secret key

BCrypt Hash Generator

Hash and verify passwords using BCrypt

JWT Decoder

Decode JWT tokens — header, payload and signature

Password Generator

Generate secure passwords with custom character sets

Password Strength Checker

Check how strong a password is against common attacks

File Hash Generator

Generate MD5/SHA hash of any file client-side

UUID Generator

Generate v1 and v4 UUIDs in bulk

Nano ID Generator

Generate compact, URL-safe unique IDs

Random String Generator

Define charset and length, generate random strings

QR Code Generator

Generate QR codes from any URL or text

Barcode Generator

Generate Code128, EAN and other barcodes

Unix Timestamp Converter

Convert Unix timestamps to human-readable dates and back

Date Difference Calc

Calculate days, weeks and months between two dates

Timezone Converter

Convert times between any two time zones

Cron Expression Builder

Visual cron builder with human-readable explanations

Color Picker & Converter

Convert between HEX, RGB, HSL and HSV color formats

Color Palette Generator

Generate complementary, analogous and triadic palettes

Color Contrast Checker

Check WCAG AA and AAA contrast pass/fail ratios

Tint & Shade Generator

Lighten and darken a color, copy all hex values

Image Color Extractor

Upload an image and extract the dominant color palette

Regex Tester

Live regex match highlighting with flags and group list

Diff Checker

Line-level and word-level text diff comparison

cURL Command Generator

Build cURL commands from a simple form

HTTP Status Codes

Searchable reference for all HTTP status codes

MIME Type Lookup

Look up MIME types by file extension or type string

IP Address Lookup

Find your public IP address and geolocation data

DNS Lookup

Query A, AAAA, MX, TXT and CNAME DNS records

SSL Certificate Checker

Check SSL cert validity and expiry for any domain

Word Frequency Counter

Paste text and rank words by occurrence frequency

CSV Table Viewer

Paste CSV data and view it as a formatted table

CSV to JSON

Convert CSV data to a JSON array

XML Formatter

Validate and pretty-print XML markup

YAML to JSON

Convert YAML configuration files to JSON

JSON to YAML

Convert JSON to YAML configuration format

SVG Optimizer

Optimize and compress SVG files in your browser