One tool. One file. Open and use.

Parse, validate, mask, search, and export .env files entirely in the browser.

Draft image alt text and get instant feedback on whether it's clear, concise, and accessible.

Visually create and customize CSS cubic-bezier() easing functions with a live animation preview.

Define custom JSON responses and simulate API endpoints directly in the browser.

A fast, offline reference for common WAI-ARIA roles with attributes, semantic alternatives, and examples.

Calculate and simplify aspect ratios instantly. Supports common presets and outputs decimal ratio and CSS padding-bottom values.

A simple, offline utility to encode raw text into Base64 format and decode Base64 strings back to text.

Convert images to Base64 data URIs, or decode Base64 strings back into viewable images.

A simulated bash terminal to play with and learn common commands, entirely in your browser.

Convert between binary, decimal, hexadecimal, and octal.

Design CSS box shadows visually with live preview, presets, and copy-ready output.

Analyze HTML to verify canonical URL implementation and identify common SEO issues.

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

Visually synchronize and convert time across multiple global timezones.

Visually create complex CSS clip-path shapes and instantly copy the generated code.

Store, categorize, and retrieve code snippets with syntax highlighting, entirely offline.

Mix colors and generate harmonious color palettes.

Extract dominant colors and generate beautiful palettes directly from images in your browser.

Generate beautiful random color combinations for designers and frontend developers.

Pick a color and view it in HEX, RGB, HSL, and HSV, with generated shades and recent colors.

Load multiple commands and copy them one at a time with a terminal-style interface.

Check the WCAG 2.1 contrast ratio between two colors with AA/AAA compliance and a live text preview.

Build and customize cron schedules with presets, validation, explanations, and upcoming run previews.

Convert between Hex, RGB, HSL, HSLA, and OKLCH color formats instantly with a visual picker.

Compare multiple CSS easing curves side-by-side on a shared graph and in an animated race preview.

Build CSS Grid layouts visually with configurable columns, rows, gap, and sizing options.

Break down CSS selectors into their specificity score and see which rule wins a conflict.

Instantly convert between px, rem, em, vw, vh, and percentages.

Extract, edit, preview, copy, and download CSS custom properties with a live theme preview.

Explore, edit, and export CSS custom properties with live preview and a glassmorphism UI.

Construct ready-to-run cURL commands for REST APIs with headers, auth, body types, query params, and file uploads.

Generate a complete favicon pack and integration tags from any image, offline.

Experiment with Flexbox properties visually and copy the generated CSS.

Explain any Git command in plain English, with full flag-by-flag breakdowns for the most commonly used commands.

Generate boilerplate .gitignore files for various technologies instantly, offline.

Generate a professional GitHub profile README with live stats and an editable preview.

Glassmorphism-themed GitHub Token Validator tool that allows users to validate GitHub Personal Access Tokens directly in the browser.

Validate GitHub Personal Access Tokens with a sleek, modern interface. Token never leaves your browser.

Validate GitHub Personal Access Tokens with a terminal-style UI that displays user identity and scopes.

Validate GitHub Personal Access Tokens with a clean, modern, and responsive card-based interface GitHub style.

Validate GitHub Personal Access Tokens with a clean, straightforward interface.

Validate GitHub Personal Access Tokens with a retro terminal themed interface.

Generate sleek, frosted-glass UI effects for your components.

Visually build linear or radial CSS gradients with multiple color stops and copy-ready CSS.

Generate SHA-1, SHA-256 and SHA-512 hashes instantly in your browser.

Generate valid hreflang link tags for multilingual and multi-regional websites.

Send a request to any URL and inspect its HTTP response headers, status code, and timing.

Create, validate, organize, preview, import, and export HTTP request headers locally in your browser.

Inspect an image's width, height, aspect ratio, orientation, size, format, and megapixels locally.

Extract and view EXIF, GPS, and other hidden metadata locally without uploading your images.

Convert between JSON and CSV formats with bidirectional conversion and custom delimiters.

Compare two JSON objects semantically with added, removed, and modified value highlighting.

Format, validate, and minify JSON locally in your browser.

Validate JSON data against a JSON Schema.

Generate Schema.org JSON-LD structured data with live preview, copy, and download support.

Decode and inspect JSON Web Tokens — header, payload, claims, and expiry — entirely in your browser.

Generate placeholder lorem ipsum text for designs and mockups.

Write and preview Markdown in real time, offline.

Generate Markdown tables easily with this visual tool.

Generate essential HTML meta tags with a live preview and copy-ready code.

Create soft, extruded UI elements with customizable neumorphic shadows.

Validate Open Graph tags from any public URL with social previews, health score, and JSON export.

Generate Open Graph meta tags with a live tri-platform preview (Facebook, Twitter, LinkedIn) and copy-ready HTML.

Analyze meta tags, social previews, and SEO metadata for any URL with actionable scores.

Generate unique, collision-free variation color schemes based on color theory metrics, offline.

Generate highly secure, cryptographic random passwords instantly. 100% offline, privacy guaranteed.

Generate customizable privacy policies for websites and apps with live preview, copy, and download.

Instantly generate customizable, high-quality QR codes offline.

Visually create CSS border-radius values with live preview, presets, and copy-ready CSS output.

Test regular expressions against custom text with live highlighting and replacement.

A polished regex testing workbench with live matching, flag toggles, and match group inspection.

Test responsive layouts instantly via URL or raw HTML sandbox with intelligent scaling.

Preview a srcset/sizes image at common device breakpoints and see which source the browser selects.

Visually build, manage, and export standard-compliant robots.txt files with live syntax highlighting.

Test your website at different screen resolutions.

A standalone Sitemap Generator that helps users create valid XML sitemaps for websites entirely offline.

Translate standard SQL queries instantly into MongoDB Aggregation Pipeline JSON arrays.

Compress and optimize raw SVG code by removing unnecessary metadata, empty tags, and comments.

Paste raw SVG markup and preview it instantly, with validation and quick export options.

Paste Tailwind utility classes and get the equivalent hand-written CSS rule.

Find the closest matching Tailwind CSS color and shade for any HEX, RGB, or HSL input.

Compare two blocks of text and see line-level and word-level differences, side-by-side or unified.

Preview how Twitter/X cards appear with live updates for Summary and Summary Large Image layouts.

Encode and decode URLs or percent-encoded strings instantly using native browser APIs.

Parse any User-Agent string into a readable breakdown of browser, engine, OS, device, and CPU architecture.

Generate random v4 UUIDs instantly, offline.