Developer Tools

API Tester Online

Test API endpoints online for free — send GET, POST, PUT, DELETE requests with custom headers and JS

n8n vs Zapier vs Make Pricing

Compare automation platform costs side by side — enter workflow steps and monthly runs to see exact p

Automation ROI Calculator

Calculate return on investment for automating tasks — time saved, money saved, and break-even point

Base64 Encode/Decode

Encode plain text to Base64 or decode Base64 strings back to readable text. Supports full Unicode ch

CSS Box Shadow Generator

Create custom CSS box shadows with a live visual preview. Adjust horizontal offset, vertical offset,

Color Contrast Checker (WCAG)

Check the contrast ratio between any two colors and verify WCAG 2.1 compliance for AA and AAA levels

HEX RGB HSL Color Converter

Paste any color value in HEX, RGB, or HSL format and instantly convert it to all three representatio

CORS Tester & Checker

Test any URL for CORS headers, diagnose cross-origin errors, and get fix code for Laravel, NestJS, E

Cron Expression Generator

Build cron expressions visually by selecting minute, hour, day, month, and weekday values. Get the c

CSS Gradient Generator

Design beautiful CSS gradients visually. Choose between linear and radial types, pick your colors an

CSS Minifier

Compress your CSS by removing comments, extra whitespace, and newlines. See exactly how many bytes y

Git Cheat Sheet & Command Reference

The ultimate git cheat sheet — find any git command instantly for undo, branching, stashing, remote s

Htaccess Redirect Generator

Generate .htaccess rules for Apache servers — redirects, HTTPS rewrites, security headers, gzip comp

HTML Beautifier & Formatter

Paste minified, compressed, or messy HTML code and get clean, properly indented, human-readable outp

HTML Entity Encoder/Decoder

Encode special characters like &, <, >, and quotes into HTML entities, or decode HTML enti

HTML to Markdown Converter

Convert HTML markup to clean Markdown syntax. Handles headings, paragraphs, bold, italic, links, ima

HTTP Status Codes

Complete list of all HTTP status codes with meanings. Search by code number or keyword — 1xx to 5xx

JavaScript Minifier

Compress your JavaScript by removing comments, extra whitespace, and newlines. This basic minifier r

JSON Compare

Paste two JSON objects below to compare them side by side. The tool normalizes both inputs by sortin

JSON Formatter & Validator

Paste your JSON data below to beautify, format, and validate it instantly. Choose your preferred ind

JSON Minifier

Compress your JSON by stripping all unnecessary whitespace, newlines, and indentation. See exactly h

JSON to Dart, Kotlin & Swift

Convert JSON API responses into typed model classes for Dart (Flutter), Kotlin (Android), and Swift (iOS) instantly.

JSON to YAML Converter

Convert JSON data to clean, human-readable YAML format. Supports nested objects, arrays, strings, nu

JWT Decoder

Paste a JSON Web Token to decode and inspect its header, payload, and claims. All decoding happens i

Markdown Live Preview

Write Markdown in the editor and see it rendered as HTML in real time. Supports headings, bold, ital

Markdown to HTML Converter

Convert Markdown text into raw HTML code. Supports headings, bold, italic, inline code, links, image

Nginx Config Generator

Generate production-ready Nginx configurations for static sites, reverse proxies, PHP-FPM, load bal

Regex Tester

Test regular expressions against any text and see all matches highlighted in real time. Supports glo

SQL Formatter

Paste your SQL query to beautify it with proper indentation, line breaks, and optional keyword capit

SSH Config Generator

Generate ~/.ssh/config entries for managing multiple servers with host aliases, identity files, keep

SVG Viewer & Optimizer

Paste your SVG code to preview it visually, then optimize it by removing comments, metadata, and unn

Unix Timestamp Converter

Convert Unix epoch timestamps to human-readable dates in multiple formats, or convert date strings t

URL Encode/Decode

Encode text for safe URL usage by converting special characters to percent-encoded sequences, or dec

URL Parser

Break down any URL into its individual components — protocol, hostname, port, pathname, query parame

Web Font Performance Analyzer

Analyze @font-face CSS and Google Fonts URLs for performance — check WOFF2, font-display, preload, subsetting, and get a score with optimized CSS.

Webhook Payload Formatter

Format, validate, and debug webhook JSON payloads from n8n, Zapier, Make, Stripe, and any API

UUID Generator

Generate random UUIDs (Universally Unique Identifiers) in v4 and v7 formats. Choose quantity, format

XML Formatter

Format and beautify XML documents with proper indentation. Paste minified or messy XML and get clean

YAML to JSON Converter

Convert YAML data to JSON format instantly. Supports nested objects, arrays, strings, numbers, boole

Chmod Calculator

Convert between octal (755) and symbolic (rwxr-xr-x) Linux file permissions with a visual permissio

Code Secret Scanner

Detect API keys, passwords, tokens, and secrets in your code. Regex-based scanner runs entirely in your browser.

Dotenv (.env) Validator & Formatter

Validate .env files instantly — find duplicate keys, empty values, security issues, and missing varia

Docker Run to Docker-Compose Converter

Convert docker run commands to docker-compose.yml instantly. Parses ports, volumes, environment vari

dp sp pt px Converter

Convert between dp, sp, pt, and px for Android and iOS development. Calculate pixel values across all screen densities.

Smooth Scroll CSS & JS Generator

Generate smooth scroll code — CSS scroll-behavior, vanilla JS with custom easing, or Lenis library config. Copy-paste ready.

Website Tech Stack Detector

Paste HTML source code to detect frameworks, CMS, CSS libraries, analytics, CDN, and fonts used by any website.

Website Speed Audit Checklist

Score your website performance with an interactive checklist covering images, fonts, scripts, caching, and Core Web Vitals.

Image CDN URL Builder

Build optimized image URLs for Cloudinary, Imgix, Sanity, Bunny, and Cloudflare with visual transformation controls.

CSV to JSON Converter

Convert CSV data to JSON format instantly. Paste your CSV and get clean JSON output. Supports header

Hash Generator

Generate SHA-256, SHA-1, SHA-384, SHA-512 hashes from any text. Uses browser's built-in Web Crypto A

JSON to CSV Converter

Convert JSON array to CSV format instantly. Paste JSON objects and get downloadable CSV output. Free

Lorem Ipsum Generator

Generate Lorem Ipsum placeholder text for design and development. Choose paragraphs, sentences, or w

Markdown Table Generator

Generate Markdown tables visually. Set rows and columns, enter data, and copy the formatted Markdown

Query String Parser

Parse URL query strings into key-value pairs. Extract parameters from any URL. Edit and rebuild quer

Text to Binary Converter

Convert text to binary code and binary to text. Supports ASCII/Unicode with hex, octal, decimal output formats.

Hex to RGB Color Converter

Convert hex color codes to RGB, HSL, and CMYK values. Live preview, copy CSS-ready code. Also converts RGB to hex.

Slug Generator

Convert any text to a clean URL-friendly slug. Removes special characters, converts spaces to hyphen

Aspect Ratio Calculator

Calculate aspect ratios for images, videos, and screens. Presets for 16:9, 4:3, 1:1, 21:9, and more.

EM to PX Converter

Convert between EM, PX, REM, and PT CSS units. Configurable base size, live preview, reference table.