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Developer Tools

Essential utilities for web developers & engineers: JSON Formatter, Base64 encode/decode, URL encoding, JWT decoder, and hash generators.

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Top Tool

JSON Formatter & Validator

Beautify, minify, validate, and inspect JSON with syntax highlighting and tree view.

Updated

Base64 Encoder / Decoder

Encode and decode plain text, Unicode strings, binary files, and media to and from Base64 with live media preview.

URL Encoder / Decoder

Encode special characters into percent-encoding format or decode raw URLs cleanly.

Security

JWT Decoder

Decode JSON Web Tokens (JWT) to inspect Header, Payload claims, issued at, and expiration status.

HTML / CSS / JS Minifier

Minify or beautify HTML, CSS, and JavaScript source code to save bandwidth and speed up page load.

Hash & UUID Generator

Generate cryptographic MD5, SHA-1, SHA-256, SHA-512 hashes and unique UUID v4 strings.

Fast

JSON Minifier

Compress JSON data by removing whitespace, line breaks, and indentation to reduce payload size.

Popular

JSON to CSV Converter

Convert JSON data or arrays of objects into structured CSV spreadsheets with nested field flattening.

CSV to JSON Converter

Transform CSV spreadsheets or TSV tab-delimited data into clean, formatted JSON arrays.

Essential

XML Formatter

Beautify and indent unformatted XML documents and feeds with customizable tab/space indentation.

XML Validator

Validate XML syntax and detect unclosed tags, illegal characters, or malformed structures with exact line numbers.

XML Minifier

Compress XML feeds, sitemaps, and documents by stripping whitespace, comments, and newlines.

DevOps

YAML Validator

Validate YAML configurations (Docker Compose, Kubernetes, GitHub Actions) with line-accurate error highlighting.

YAML to JSON Converter

Convert YAML configuration files into formatted or minified JSON data structures.

JSON to YAML Converter

Convert JSON objects and arrays into clean, human-readable YAML documents.

Web Dev

HTML Formatter

Beautify, indent, and format messy HTML5 markup and web templates.

Web Dev

CSS Formatter

Format, beautify, and organize messy CSS stylesheets with clean rule blocks and indentation.

Web Dev

JavaScript Formatter

Beautify, indent, and format JavaScript and ES6+ source code with clean brace alignment.

Database

SQL Formatter

Format and pretty-print SQL queries with capitalized keywords and structured clause indentation.

SQL Minifier

Compress SQL queries into single-line strings and strip comments for embedding in code or migrations.

Live Preview

Markdown to HTML Converter

Convert Markdown (.md) documents into clean HTML code with a real-time live visual preview pane.

HTML to Markdown Converter

Convert rich HTML markup, articles, headings, and tables into clean Markdown (.md) format.

Security

HTML Entity Encoder

Encode special characters, quotes, and symbols into safe HTML entities to prevent XSS vulnerabilities.

HTML Entity Decoder

Decode HTML entities (named, decimal, hex) back to human-readable plain text characters.

UUID Tool

UUID Validator

Validate UUID / GUID strings, detect version (v1, v2, v3, v4, v5, NIL), variant, and inspect constituent components.

Essential

Regex Tester

Test and debug regular expressions in real-time with visual match highlighting, capture groups, and sample patterns.

Random String Generator

Generate secure random strings, alphanumeric tokens, API keys, and testing identifiers in bulk.

Essential

Password Generator

Create custom passwords that are easy to remember, easy to say, or completely randomized.

High Security

Strong Password Generator

Generate military-grade cryptographic passwords with live entropy score and crack-time estimator.

Popular

QR Code Generator

Create custom QR codes for URLs, WiFi networks, text, vCards, phone numbers, and emails with PNG download.

Barcode Generator

Generate standard 1D & 2D retail and inventory barcodes (CODE128, EAN-13, UPC, CODE39) with SVG & PNG download.

Visual Dev

CSS Gradient Generator

Design stunning Linear, Radial, and Conic CSS gradients with interactive color stops, angle dial, and 1-click CSS code.

Visual Dev

Box Shadow Generator

Create modern, smooth multi-layer 3D box shadows, glassmorphic glows, and neumorphic card effects.

Visual Dev

CSS Border Radius Generator

Create organic blobs, pill shapes, and fancy 8-point border radius CSS shapes with interactive visual handles.

Visual Dev

CSS Button Generator

Design high-converting, modern CSS buttons with gradient backgrounds, hover animations, and ripple effects.

Visual Dev

CSS Spinner Generator

Generate lightweight pure CSS loading spinners, pulsating rings, and animated indicators with zero JavaScript.

HTML Generator

Quickly generate clean, semantic HTML5 boilerplates, responsive tables, contact forms, and multimedia embeds.

Asset Tool

Favicon Generator

Convert any image or text into complete multi-resolution favicon packages (16x16, 32x32, 180x180 Apple Touch, 512x512 Android) as a ZIP download.

Server Tool

.htaccess Generator

Generate secure Apache .htaccess rules: HTTPS redirect, WWW canonicalization, Gzip compression, browser caching, and security headers.