DevToolkit

All-in-one web-based toolkit for developers. Use JSON Formatter, JWT Decoder, Image Resizer and more directly in your browser without installation.

JSON Formatter

Format, minify, and validate JSON data.

JWT Decoder

Decode JWT tokens to view Header, Payload, and expiration time.

Image Resizer

Resize images, convert formats, and adjust quality in your browser.

Unix Timestamp

Convert between Unix timestamps and human-readable dates.

Base64 Converter

Encode and decode text or files to/from Base64.

App Icon Generator

Generate app icons for iOS, Android, and Favicon in all required sizes.

QR Code Generator

Generate QR codes for URLs, WiFi, contacts, and more.

Color Picker

Extract colors from images and generate color palettes.

URL Parser

Parse URLs into components and edit query parameters.

UUID/ULID Generator

Generate UUID v1, v4, and ULID with various format options.

Number Base Converter

Convert between binary, octal, decimal, and hexadecimal.

Hash Generator

Generate and compare MD5, SHA-1, SHA-256, SHA-512 hashes.

SQL Formatter

Format SQL queries with support for multiple dialects.

Cron Parser

Parse cron expressions and predict next execution times.

Markdown Preview

Live preview Markdown with syntax highlighting support.

Diff Checker

Compare two texts and visualize the differences.

Lorem Ipsum Generator

Generate placeholder text by words, sentences, or paragraphs.

URL Encoder/Decoder

Encode or decode URLs for safe transmission.

HTML Entity Encoder

Encode and decode HTML special characters to entities.

Box Shadow Generator

Visually edit CSS box-shadow and generate code.

Gradient Generator

Visually create CSS gradients and generate code.

User Agent Parser

Parse User Agent strings to identify browser, OS, and device.

Regex Tester

Test regular expressions and see matches in real-time.

Meta Tag Generator

Generate SEO meta tags, Open Graph, and Twitter Cards.

cURL Builder

Build HTTP requests and generate cURL commands.

SVG Optimizer

Optimize SVG files to reduce file size.

CSS to Tailwind

Convert CSS properties to Tailwind CSS classes.

Prettier Playground

Format code in various languages using Prettier.