All Developer Tools

HTML Tools

HTML Formatter

Beautify & indent HTML

HTML Tools

HTML Minifier

Compress HTML for production

HTML Tools

HTML to JSX Converter

Convert HTML to React JSX

HTML Tools

HTML to Markdown

Convert HTML to Markdown

HTML Tools

HTML Tag Stripper

Remove all HTML tags

HTML Tools

Open Graph Preview

Simulate social card previews

HTML Tools

Markdown to HTML

Render Markdown as HTML

HTML Tools

HTML Table Generator

Visual table builder

CSS & Design

CSS Minifier & Beautifier

Compress or format CSS

CSS & Design

CSS Grid Generator

Visual grid layout builder

CSS & Design

SVG Optimizer

Minify and clean SVG markup

CSS & Design

CSS Flexbox Generator

Build flexbox layouts visually with live preview

CSS & Design

SVG to CSS Data URI Encoder

SVG as background-image

CSS & Design

Color Palette Generator

Palettes from one color

CSS & Design

Website Accessibility Audit

Crawl a page for WCAG risks

CSS & Design

CSS Variables Generator

Generate a custom CSS variable theme

Data & Text

Image Resize Calculator

Calculate new dimensions while preserving aspect ratio

Data & Text

Password Strength Checker

Analyze password entropy and weaknesses

CSS & Design

CSS Variables Extractor

Extract CSS custom properties

CSS & Design

CSS Unit Converter

px → rem, em, vw, vh

Data & Text

YAML ↔ JSON Converter

Convert between YAML and JSON

Data & Text

JSON to YAML

Convert JSON to YAML format

Data & Text

JSON Schema Generator

Infer JSON Schema from data

Data & Text

JSON Minifier

Compress JSON by removing whitespace

Data & Text

Unit Converter

Convert length, weight, temperature & volume

Data & Text

Text Repeater

Repeat any text N times with a separator

Data & Text

JSON Formatter & Validator

Pretty-print & validate JSON

Data & Text

Base64 Encode / Decode

Base64 text converter

Data & Text

Morse Code Converter

Text ↔ Morse, with audio playback

Data & Text

Number to Words

Convert numbers to English words

Data & Text

Case Converter

UPPER, lower, camelCase…

Data & Text

JSON to CSV Converter

Export JSON arrays as CSV

Data & Text

JSON to TypeScript

Generate TypeScript interfaces

Data & Text

SQL Formatter

Beautify & minify SQL queries

Data & Text

JSON Diff

Compare two JSON objects

Data & Text

Roman Numeral Converter

Integer ⇄ Roman numerals

Data & Text

Binary ↔ Text Converter

Text to binary and back

Data & Text

Markdown Table Generator

CSV → Markdown or HTML table

Data & Text

Number Base Converter

Decimal, Hex, Binary, Octal

Generators

URL Slug Generator

SEO-friendly slugs

Generators

Favicon Generator

Letter favicons in seconds

Generators

Image to Base64

Convert images to data URIs

Generators

UTM Link Builder

Campaign URL generator

Generators

Robots.txt Generator

Crawler rules made easy

Generators

IP / CIDR Calculator

Subnet calculator & IP range

Generators

chmod Calculator

Linux file permission builder

Generators

Security Headers Generator

.htaccess & Nginx headers

Generators

.htaccess Redirect Generator

301s without the pain

CSS & Design

CSS Clamp Calculator

Fluid typography sizing

Data & Text

Hash Generator

SHA-1, SHA-256, SHA-512 online

Data & Text

List Sorter & Deduplicator

Sort, dedupe & shuffle lines

Data & Text

Text to Speech

Convert text to audio using your browser

Data & Text

Text Statistics

Words, chars, reading time & more

Generators

Fake Data Generator

Random names, emails & addresses

Generators

HTTP Request Builder

curl, fetch & axios code generator

Generators

UUID Generator

Generate v4 UUIDs instantly

Data & Text

Unix Timestamp Converter

Timestamp ↔ human-readable date

CSS & Design

Color Converter

Convert HEX, RGB, HSL, HSV, CMYK instantly

Data & Text

URL Parser

Break a URL into protocol, host, path, params, fragment

CSS & Design

Color Blindness Simulator

Preview designs through color-blind filters

CSS & Design

CSS Triangle Generator

Generate pure-CSS triangles with copy-ready code

CSS & Design

CSS Filter Generator

Visual builder for CSS filter effects

CSS & Design

CSS Animation Generator

Build @keyframes animations visually

Data & Text

SQL Query Builder

Build SELECT queries visually

Generators

Password Generator

Generate strong, configurable passwords

Generators

Text Encrypt / Decrypt

AES-GCM encrypt text in your browser

Data & Text

IP Address Info

Parse IPv4/IPv6: binary, class, CIDR, private/public

CSS & Design

CSS Border Radius Generator

Visual per-corner border-radius builder

Data & Text

Byte / Bit Converter

Convert between bytes, KB, MB, GB, TB

CSS & Design

CSS Named Colors

Browse & copy all 140 CSS color names

Data & Text

String Escape / Unescape

Escape or unescape strings for JS, HTML, URL, SQL

Data & Text

Line Counter

Count, number, and filter lines in any text

CSS & Design

HTML Color Codes

Interactive HEX, RGB, HSL color converter + reference

Data & Text

Duplicate Line Remover

Remove duplicate lines from text

HTML Tools

.htaccess Generator

Build Apache .htaccess rules visually

Generators

JWT Builder

Build & sign JWT tokens in-browser

Data & Text

Aspect Ratio Calculator

Calculate & compare image aspect ratios

HTML Tools

Meta Tags Generator

SEO & Open Graph meta tags

Data & Text

cURL to Fetch Converter

Convert curl to JS fetch / axios

CSS & Design

CSS Specificity Calculator

Calculate selector specificity

Generators

QR Code Generator

Generate QR codes instantly

CSS & Design

CSS Text Shadow Generator

Visual text-shadow builder

Data & Text

Word Frequency Counter

Analyze word and phrase frequency

CSS & Design

CSS Gradient Generator

Linear & radial gradient builder

Data & Text

JSON to SQL INSERT

JSON array → INSERT statements

HTML Tools

Markdown Cheatsheet

Interactive Markdown reference with copy examples

HTML Tools

Markdown Preview

Live Markdown → HTML renderer

CSS & Design

CSS Box Shadow Generator

Visual box-shadow builder

Data & Text

Email Address Validator

Validate email format & anatomy

CSS & Design

Image Color Picker

Extract colors from any image

HTML Tools

HTML Entity Encoder / Decoder

Encode & decode HTML entities

Data & Text

URL Encoder / Decoder

Encode & decode URLs and query strings

Data & Text

Text Diff Viewer

Compare two blocks of text

Generators

Cron Expression Builder

Visual cron schedule generator

Generators

Lorem Ipsum Generator

Placeholder text for designs & mockups

Data & Text

Number Formatter

Commas, currency, scientific notation

Data & Text

JSONPath Tester

Query JSON with JSONPath expressions

Data & Text

JWT Decoder

Decode & inspect JWT tokens

Data & Text

Regex Tester

Live regex match highlighting

AI Tools

AI HTML Fixer

Fix broken HTML with AI

AI Tools

AI Email HTML Converter

Make HTML email-safe