Step-by-step guides.
Concrete instructions for common developer tasks, paired with the right tool to do each one.
How to Generate a Docker Compose File
Generate a Docker Compose configuration for multi-container applications. Define services, networks, and volumes with an intuitive interface.
How to Convert an Image to Base64
Convert images to Base64-encoded strings for embedding directly in HTML, CSS, or JSON without separate file requests.
How to Check Color Contrast for Accessibility
Test foreground and background color combinations against WCAG accessibility guidelines. Ensure your design meets AA and AAA contrast ratios.
How to Generate a .gitignore File
Generate a .gitignore file tailored to your project. Select your language, framework, and IDE to get the right ignore patterns.
How to Parse and Analyze a URL
Break down any URL into its components including protocol, host, path, query parameters, and fragment. Debug and inspect URLs quickly.
How to Generate a Secure Password
Generate strong, random passwords with customizable length and character options. Create passwords that meet any security requirement.
How to Convert a Unix Timestamp
Convert Unix timestamps to human-readable dates and vice versa. Support for seconds and milliseconds with timezone awareness.
How to Generate a CSS Box Shadow
Design CSS box shadows visually with controls for offset, blur, spread, and color. Copy the generated CSS for your project.
How to Generate a Dockerfile
Generate a production-ready Dockerfile for your application. Select your language, framework, and configuration options to get started quickly.
How to Convert Between Color Formats
Convert colors between HEX, RGB, HSL, and other formats instantly. Paste any color value and get it in every supported format.
How to Generate a QR Code
Create QR codes from any text, URL, or data. Customize size and format, then download or copy your QR code instantly.
How to Generate a CSS Gradient
Create beautiful CSS gradients with a visual editor. Choose colors, direction, and gradient type to generate ready-to-use CSS code.
How to Convert CSV to JSON
Transform CSV spreadsheet data into a JSON array of objects, using the first row as property keys.
How to Convert JSON to YAML
Transform JSON objects and arrays into clean, readable YAML format for use in configuration files.
How to Decode a JWT Token
Inspect and decode JSON Web Tokens to view the header, payload, and signature without any server-side processing.
How to Encode and Decode Base64
Encode text or binary data to Base64, or decode Base64 strings back to their original content.
How to Format JSON Online
Format messy or minified JSON into readable, properly indented output using a free browser-based tool.
How to Generate an MD5 Hash
Create MD5 checksums for text strings or verify data integrity by comparing hash values.
How to Generate a UUID
Generate random UUIDs (v4) or time-based UUIDs (v7) for use as unique identifiers in databases, APIs, and applications.
How to Minify CSS Online
Compress CSS by removing whitespace, comments, and unnecessary characters to reduce file size.
How to Test Regex Online
Write and test regular expressions with real-time match highlighting and capture group display.
How to Validate JSON
Check if your JSON is valid and get precise error messages with line numbers for any syntax issues.