DevDeck — All Your Dev Tools. One Command Away.

DevDeck

All your dev tools. One command away.

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⚡ 29 tools • Instant • No signup

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⚡Instant Tools

🧠Smart Detection

⌨️Command First

Developer Tools

API Request Builder

Build and test HTTP requests directly in your browser with a full-featured request editor

CSS → Tailwind

Convert CSS properties to Tailwind utility classes instantly with smart mapping

HTML → JSX

Convert HTML markup to valid JSX syntax with automatic class→className, event handlers, and self-closing tag conversions

Cron Expression Builder

Build cron expressions visually, get a plain-English description, and preview the next 5 scheduled run times

Image Tools

Base64 Image

Convert images to Base64 and decode Base64 back to image

QR Code Generator

Generate QR codes from any text, with optional logo overlay

Image Resizer

Crop, scale, and rotate images with a live preview canvas

Aspect Ratio Calculator

Calculate and copy the simplified aspect ratio of any image

Encoding & Text

Encoder / Decoder

Encode and decode text using Base64, URL encoding, HTML entities, Unicode, hex, and binary formats

Base64 Text

Encode plain text to Base64 and decode Base64 back to text

Text Case Converter

Transform text to UPPER, lower, Title, camelCase, snake_case and more

Hash Generator

Generate MD5, SHA-1, SHA-256, and SHA-512 hashes from any text

Regex Tester

Test regular expressions with live match highlighting and group capture

JWT Toolkit

Decode, inspect, and generate JWT tokens — sign with HMAC, RSA, ECDSA, and EdDSA

YAML ↔ JSON

Convert YAML to JSON and JSON to YAML with error feedback

Text Diff

Compare two text blocks and highlight added and removed words

Word Counter

Count words, characters, lines, sentences, paragraphs and reading time

CSV to JSON

Parse CSV data into JSON with configurable header row support

URL & Web

URL Validator

Check HTTP status codes and strip tracking parameters from URLs

URL Shortner

Shorten any long URL to a compact shareable link

Utilities

Smart Formatter

Paste any data and auto-detect the format — JSON, JWT, URLs, Base64, UUID, hash, cURL, timestamps, CSV, HTML, colors, and IP addresses

Password Tools

Generate secure passwords and analyze strength with crack-time estimation

JSON Viewer

Format, validate, and interactively browse JSON data

Color Converter

Convert colors between HEX, RGB, and HSL formats instantly

UUID Generator

Generate one or more UUID v4 values with a single click

Command Playground

Paste any data and instantly detect its type — JSON, JWT, URL, Base64, UUID, hash, timestamp, and more

Timestamp Converter

Convert Unix timestamps to human-readable dates and vice versa

Number Base Converter

Convert numbers between binary, octal, decimal, and hexadecimal

Lorem Ipsum

Generate lorem ipsum placeholder text by paragraphs, sentences, or words

Learn

What is JSON Viewer? →How Base64 Encoding Works →Regex Explained →Understanding JWTs →Password Security Guide →View all guides →

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Guides:JSON Viewer·Base64 Guide·Regex Guide·JWT Decoded·Password Security

DevDeck — All Your Dev Tools. One Command Away.