Your complete
developer toolbox

Tailwind color generator with accessible shades and instant export

QR Code Generator

Create customizable QR codes for URLs, WiFi networks, contact cards, and more. Add your logo, tune colors and shapes, then download as SVG or PNG.

7+ QR code types: URL, WiFi, vCard, Email, SMS, Phone, Text
Custom colors, shapes, and embedded logo support
Export as SVG or PNG in any size up to 1024px

Create Your QR Code

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Developer Tools

Transform, validate, and analyze your data instantly

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JSON Validator & Formatter

Validate, format, and beautify your JSON data with ease.

Security

JWT Decoder

Decode and inspect JSON Web Tokens to check their payload and signature.

Encoding

Base64 Encoder / Decoder

Quickly encode strings to Base64 or decode them back to their original form.

Encoding

URL Encoder / Decoder

Encode and decode URLs with multiple encoding methods. Parse URL components and query parameters.

Time

Timestamp Converter

Convert Unix timestamps, epoch dates, and time units. Calculate second or millisecond values plus day, month, or year boundaries.

Time

Timer & Stopwatch

Accurate countdown timer and stopwatch with persistent state and sound alerts.

Text

Text Counter & Analyzer

Count characters, words, lines, paragraphs, and sentences. Get reading and speaking time estimates.

Development

Keyboard Event Monitor

Monitor and test keyboard events in real-time. See key codes, locations, and event properties.

CSS

CSS Unit Converter

Convert rem to px, px to rem, em, %, vw, vh, pt, and more with customizable base font and viewport sizes.

List Randomizer

Shuffle and randomize any list. Import from CSV, Excel, or add items manually. Save and reload versions.

Content

Teleprompter

Online mirror teleprompter with voice control, camera-ready scrolling, markdown support, and custom fonts for creators and presenters.

JSON SQL Analyzer

Query massive JSON, CSV, and Parquet files locally with SQL. Supports 500MB+ datasets, nested objects, and zero-upload privacy.

Image Editor

Edit photos with color grading, light adjustments, sharpening, crop, and text overlays. Export to JPEG, PNG, or WebP.

Generators

Create secure passwords, unique IDs, and color palettes

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QR Code Generator

Create customizable QR codes for URLs, WiFi, contacts, and more. Supports custom colors, shapes, logo embedding, and multiple export formats.

Stack Swag

Create beautiful tech stack badges for your GitHub README, portfolio, or documentation. Select from 2600+ tech icons, customize layout, and export as SVG or Markdown.

Security

Password Generator

Generate secure passwords with customizable options including length, character types, and strength indicators.

UUID / GUID Generator

Generate universally unique identifiers (UUIDs). Support for v1 (timestamp) and v4 (random) with bulk generation.

Color Palette Generator

Generate accessible Tailwind color palettes from a base color, with 9 shades and export options for config, CSS variables, HEX, RGB, and HSL.

Developer

Crontab Generator

Create and understand cron schedule expressions. Interactive builder with human-readable descriptions and quick presets.

Developer

Barcode Generator

Generate popular barcode formats including CODE128, EAN, UPC, CODE39, ITF, and CODABAR. Supports bulk generation and SVG/PNG export.

Developer

JSON → TypeScript Generator

Convert any JSON object into TypeScript interfaces and Zod validation schemas instantly. Supports nested objects, arrays, null handling, and custom root names.

Audio

White Noise Generator

Play white, pink, or brown noise for focus, sleep, baby soothing, tinnitus masking, or blocking background distractions. Includes mono or stereo playback, stereo width, fullscreen black screen, and privacy-first in-browser audio.