All Tools

90 free tools for developers and designers. No signup required.

Frontend Tools (28)

Color Palette Generator

Create beautiful color palettes with perfect harmony

Type Scale Generator

Build responsive typography systems in seconds

Contrast Checker

Ensure WCAG accessibility with instant contrast ratios

CSS Gradient Generator

Create stunning gradients with live preview & CSS export

PX to REM Converter

Convert pixels to rem units for responsive design

Glassmorphism Generator

Design frosted glass effects with backdrop blur

Neumorphism Generator

Create soft UI shadows for modern interfaces

Box Shadow Generator

Craft CSS box shadows with real-time visual preview

Responsive Checker

Test your designs across all screen sizes instantly

DP to PX Converter

Convert Android dp values into real device pixels

PX to DP Converter

Reverse pixel values into Android density-independent units

SP to PX Converter

Preview Android text sizing across density and font scale

PX to SP Converter

Reverse Android text pixels into scale-independent units

iOS Points to Pixels

Convert UIKit and SwiftUI point values into asset pixels

Mobile Spacing Scale

Generate Android and iOS spacing tokens with live previews

Adaptive Icon Previewer

Preview Android launcher masks and the icon safe zone

Safe Area Preview Tool

Visualize notch, dynamic-island, and gesture-bar insets

CSS Background Patterns

Generate geometric patterns & textures in pure CSS

Flexbox Generator

Visual builder for flex layouts & alignment

CSS Grid Generator

Visual builder for grid layouts & alignment

Color Converter

Convert any color between HEX, RGB, HSL, and OKLCH instantly

Image Color Extractor

Extract dominant colors from any image with draggable pickers

Font Pairing Generator

Discover perfect typography combinations with 200+ curated font pairings

CSS Animation Generator

Create custom bezier curves & timing functions

Design System Generator

Generate complete design systems with professional exports

Color Name Finder

Find the closest human-readable name for any color instantly

Color Picker

Pick any color with a canvas, sliders, and screen sampling

Color Blindness Simulator

See your designs through the eyes of people with color vision deficiency

Backend Tools (16)

SEO Tools (26)

Open Graph Checker

Preview how your website appears on social media

Meta Tag Generator

Generate complete HTML meta tags for SEO and social media

Slug Generator

Create clean URL slugs from titles and lists with batch mode and SEO-friendly controls

Sitemap Generator

Create XML sitemaps to help search engines index your site

Schema Generator

Generate JSON-LD structured data for rich search results

Redirect Checker

Trace URL redirect chains & detect redirect loops

Canonical URL Checker

Validate rel=canonical tags and preferred URL alignment

Robots.txt Checker

Audit crawl directives, sitemap lines, and tested paths

Hreflang Checker

Check alternate language tags, x-default, and return links

Core Vitals Checker

Analyze load times across 3G, 4G, 5G & fiber connections

Meta Tag Extractor

Extract and analyze all meta tags from any webpage

HTTP Header Analyzer

Check security headers, caching & performance optimization

HTML Cleaner

Strip bloated HTML attributes from AI and editor content

Word Counter

Count words, characters, sentences, and paragraphs instantly

Reading Time Estimator

Calculate reading and speaking time for any text

Case Converter

Convert between camelCase, snake_case, kebab-case & 15+ formats

Alt Text Checker

Check image accessibility and WCAG compliance for any URL

Sitemap Splitter

Split large XML sitemaps into smaller files (50,000 URLs each)

Sitemap Validator

Validate XML sitemaps for errors and Google compliance

XML Sitemap Extractor

Extract and export all URLs from XML sitemaps to CSV

Meta Length Checker

Check title and meta description character counts for SEO

Favicon Generator

Generate all favicon sizes from any image — ico, PNG, apple-touch-icon, webmanifest

OG Image Generator

Create beautiful 1200×630 Open Graph images for social media previews

Reading Level Checker

Analyze text readability with Flesch-Kincaid, SMOG, Dale-Chall and more

Serp Simulator

Preview how your webpage appears in Google search results with live editing

Favicon Checker

Check if your favicon is set up correctly across all platforms

Intel Tools (20)

Third-Party Script Auditor

Detect analytics, pixels, chat widgets, replay tools, and external vendors on live pages

AI Token Counter

Count OpenAI and Claude prompt tokens, inspect context fit, and spot token-heavy inputs

WHOIS Lookup Tool

Inspect RDAP registration data, nameservers, expiry dates, registrar contacts, and hosting clues for public domains

MX Lookup Tool

Inspect MX records, SPF presence, provider hints, and inbound mail readiness for any public domain

Email Header Analyzer

Parse raw email headers to inspect SPF, DKIM, DMARC, routing hops, and sender identity mismatches

CNAME Lookup Tool

Check DNS alias targets, direct A and AAAA answers, and flattening hints for public hostnames

IPv4 to IPv6 Converter

Generate IPv4-mapped, compatible, and 6to4-style IPv6 representations for IPv4 addresses

IPv6 to IPv4 Converter

Extract embedded IPv4 values from mapped, compatible, and 6to4 IPv6 address forms

Hash Identifier

Detect likely hash formats, password-hash schemes, and common digest ambiguities from raw values or batches

Cookie Scanner

Scan live pages for Set-Cookie flags, tracking categories, persistence, and consent banner signals

Number Base Converter

Convert binary, octal, decimal, and hexadecimal values with fixed-width, signed, unsigned, and byte-level views

Two's Complement Calculator

Encode signed integers and decode binary or hex patterns with width-aware signed, unsigned, and bit-level views

Tech Stack Detector

Find what any website is built with — frameworks, hosting, analytics and more

NPM Package Alternative Finder

Find alternative packages for any npm package you're using

Can I Use

Check browser support for CSS, JS and HTML features

npm Trends

Compare npm package downloads, growth, bundle size and GitHub stars

Package Comparator

Compare any two npm packages side-by-side by downloads, bundle size, health score and GitHub stars

Package Health

Check if any npm package is still maintained — health scores, download trends and GitHub activity

Proxy Checker

Test proxy status, latency, anonymity level and location

Screen Resolution Detector

Inspect screen size, viewport size, DPR, orientation, safe-area insets, and live resize signals