Utility Library

Engineered Precision Tools

Explore our comprehensive collection of 99 professional utilities engineered for startups, developers, and data experts. High-performance, client-side, and always free.

Popular

QR Code Generator

Generate a QR code for any URL or text in seconds. Download as PNG.

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Word Counter

Count words, characters, sentences and estimate reading time — live as you type.

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Color Picker

Pick any color and instantly get HEX, RGB, and HSL values. Save a palette.

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Password Generator

Generate strong, secure passwords with custom length and character rules.

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SEO

Meta Tag Generator

Create SEO-ready HTML meta tags for title, description, OG and Twitter cards.

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Robots.txt Generator

Create SEO-friendly robots.txt files with custom directives, sitemaps, and crawl delays.

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Sitemap.xml Gen

Generate XML sitemaps to help search engines index your website pages effectively.

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Keyword Density

Analyze your content to find the most frequent keywords and optimize for SEO.

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URL Slug Gen

Convert any string into an SEO-optimized, lowercase URL slug with hyphen separators.

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Twitter Card Preview

Preview how your website will look when shared on X/Twitter with meta tags.

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Open Graph Tester

Test and preview social media meta tags for Facebook, LinkedIn, and Discord.

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Google SERP Sim

Simulate how your page will appear in Google search results with title and meta.

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Redirect Gen

Generate .htaccess or Nginx redirect rules for 301/302 URL changes.

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Meta Description Opt

Write perfectly sized meta descriptions with real-time length tracking.

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Canonical Link Gen

Quickly generate canonical tags to prevent duplicate content SEO issues.

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Hreflang Tag Gen

Create multi-language hreflang tags for global website deployments.

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Domain WHOIS Link

Direct links to major WHOIS databases to check domain registration details.

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Social Post Opt

Optimize post lengths for X, LinkedIn, and Facebook with smart character count.

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UTM Param Builder

Build trackable marketing URLs with standard UTM parameters for campaigns.

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Schema JSON-LD Gen

Generate structured data schema for articles and blogs in JSON-LD format.

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Design

Gradient Builder

Design beautiful CSS gradients with multiple color stops and directional control.

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Glassmorphism UI

Generate CSS for trendy frosted-glass effects with blur and transparency.

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Box Shadow Workshop

Create complex, layered box shadows with precise spread and blur controls.

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Neumorphism Gen

Build soft UI elements with realistic shadows for a modern neumorphic look.

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CSS Radius Blob

Generate organic, organic blob shapes using complex border-radius values.

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Contrast Checker

Verify WCAG accessibility standards for text and background color combinations.

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SVG to Data-URI

Convert SVG code into CSS-ready Data URIs for background images.

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Color Palette Gen

Generate harmonious color schemes from any base color with HSL math.

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Aspect Ratio Calc

Calculate dimensions for images and videos based on standard aspect ratios.

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CSS Keyframe Anim

Visually design CSS keyframe animations with duration and timing control.

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Tailwind Shifter

Map any hex color to the nearest standard Tailwind CSS color class.

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CSS Grid Builder

Visually layout CSS Grids with adjustable columns, rows, and gaps.

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Flexbox Playground

Interactive playground to master CSS Flexbox properties and alignments.

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Font Pairing Tool

Discover beautiful typography combinations for your next web project.

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SVG Wave Gen

Create fluid, organic SVG waves for section dividers and backgrounds.

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Security

Secure Hasher (SHA)

Generate SHA-256 and SHA-512 hashes for secure data checksums and comparisons.

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JWT Decoder

Inspect and decode JSON Web Tokens locally. View header, payload, and claims.

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SQL Formatter

Format messy SQL queries into clean, readable code with proper indentation.

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HTML Entity Encoder

Encode or decode HTML entities to prevent XSS and ensure correct character rendering.

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YAML ↔ JSON Conv

Seamlessly convert between YAML and JSON configuration formats.

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Unix Timestamp Tool

Convert Unix timestamps to human-readable dates and vice versa.

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Cron Job Parser

Validate and explain Cron expressions in plain English for scheduling.

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HTTP Header Look

Inspect common HTTP request and response headers and their purposes.

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XML Beautifier

Clean up and format XML data for better readability and debugging.

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Markdown Previewer

Write Markdown in real-time and see exactly how it will render on GitHub.

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UUID v4 Generator

Generate bulk cryptographically secure UUIDs (Universally Unique Identifiers).

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RegEx Tester

Test and debug JavaScript regular expressions with real-time highlighting.

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Color Code Conv

Convert colors between HEX, RGB, HSL, and CIE-LAB spaces.

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Script Minifier

Compress JavaScript or CSS code by removing whitespace and comments.

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String Escaper

Sanitize strings for use in JavaScript, JSON, or SQL queries.

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Certificate CSR Gen

Generate Certificate Signing Requests for SSL/TLS security certificates.

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Base64 Tool

Convert text or files to Base64 encoding and back instantly.

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ASCII ↔ Binary

Translate text into binary code (0s and 1s) and vice versa.

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JSON Validator

Validate and lint JSON data to find syntax errors and structural issues.

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Diff Checker

Compare two text blocks or code snippets to find differences and changes.

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Text

Duplicate Remover

Instantly clean up lists by removing duplicate lines or words with one click.

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Text Case Converter

Transform text between UPPERCASE, lowercase, snake_case, camelCase, and more.

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Word & Char Counter

Analyze text length, word count, sentences, and estimated reading time.

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List Alphabetizer

Sort lists alphabetically, numerically, or in reverse order with ease.

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Find & Replace

Search for specific text strings and replace them across large blocks of text.

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Text Reverser

Flip your text backwards or reverse the order of lines in a list.

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Random Line Picker

Pick one or more random items from a list—perfect for giveaways and raffles.

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Lorem Ipsum Gen

Generate professional placeholder text for your design and development projects.

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Empty Line Remover

Clean up messy text by removing all blank or whitespace-only lines.

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Whitespace Trimmer

Remove leading, trailing, and double spaces from your text snippets.

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Sentence Case Fixer

Automatically capitalize the first letter of sentences and fix common typos.

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Markdown ↔ HTML

Convert between Markdown syntax and clean, semantic HTML code.

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JSON ↔ CSV Conv

Transform structured JSON data into CSV spreadsheets and vice versa.

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CSV ↔ JSON Tool

Convert CSV spreadsheets into clean, nested JSON objects for APIs.

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Text to URL Slug

Convert any title or sentence into a URL-friendly SEO slug.

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Finance

Percentage Calc

Calculate percentages, increases, and decreases with this multi-purpose math tool.

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Sales Tax / VAT

Quickly calculate sales tax or VAT for any price and tax rate scenario.

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BMI Health Calc

Check your Body Mass Index (BMI) and health category based on height and weight.

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Age & Time Delta

Calculate the exact age or the time difference between two specific dates.

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Loan EMI Estimator

Estimate your monthly loan repayments (EMI) for home, car, or personal loans.

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Currency Conv

Convert amounts between major global currencies with real-time rate scenarios.

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Number Base Conv

Convert numbers between Decimal, Hexadecimal, Binary, and Octal formats.

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Scientific Calc

A clean, browser-based scientific calculator for advanced mathematical equations.

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Tip Calculator

Easily calculate tips and split bills among friends with a premium UI.

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Coin & Dice Roller

Flip a digital coin or roll dice for fair decision making and board games.

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Random Name Picker

Input a list and pick one name at random—perfect for giveaways.

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Pomodoro Timer

Boost your productivity using the 25/5 Pomodoro technique with visual cues.

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Stopwatch / Timer

Precision stopwatch and countdown timer for tracking your tasks and sprints.

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Click Counter

Simple and fast tally counter for tracking occurrences, people, or events.

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ASCII Art Gen

Convert standard text into stylized ASCII banner art for terminal displays.

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