All Developer Tools

18 free tools across 8 categories

18 of 18 tools

JWT Decoder

Decode and inspect JWT tokens — view header, payload, and signature information instantly.

security

Hash Generator

Generate MD5, SHA-1, SHA-256, and SHA-512 hashes from any text input. Fast, secure, and browser-based.

security

JSON Formatter

Format, validate, and beautify your JSON data with syntax highlighting and error detection.

formatters

Base64 Encoder / Decoder

Encode or decode text and files to and from Base64 format instantly.

encoders

URL Encoder / Decoder

Encode or decode URLs and query parameters for proper web transmission.

encoders

HTML Entities Encoder

Convert special characters to HTML entities and vice versa for safe web rendering.

encoders

Password Generator

Generate strong, secure passwords with customizable length and character sets.

generators

UUID Generator

Generate UUID v4 identifiers for databases, APIs, and distributed systems.

generators

Lorem Ipsum Generator

Generate placeholder text for your designs, mockups, and layouts.

generators

YAML to JSON Converter

Convert YAML data to JSON format and vice versa with live preview.

converters

Color Converter

Convert between HEX, RGB, HSL, and named CSS colors with live preview.

converters

Case Converter

Convert text between camelCase, snake_case, kebab-case, and more.

text

Markdown Preview

Write and preview Markdown in real-time with syntax highlighting and HTML output.

text

Text Diff Checker

Compare two texts side by side and highlight the differences between them.

text

Image Converter

Convert images between formats using your browser's Canvas API. No uploads needed.

images

SQL Formatter

Format and beautify SQL queries for better readability and maintainability.

formatters

Regex Tester

Test regular expressions in real-time with match highlighting, group capture, and flag controls.

text

XML Formatter

Format, validate, and beautify XML data with syntax highlighting.

formatters

Formatters

Format and beautify your code and data

Browse Formatters →

Encoders & Decoders

Encode and decode data in various formats

Browse Encoders & Decoders →

Generators

Generate passwords, UUIDs, and more

Browse Generators →

Converters

Convert between different formats and units

Browse Converters →

Text Tools

Manipulate and analyze text content

Browse Text Tools →

Image Tools

Process and convert images in your browser

Browse Image Tools →

Security

Hash, encrypt, and analyze security data

Browse Security →

Web Tools

Utilities for web development and debugging

Browse Web Tools →