A simple web-based tool to encode or decode Base64 strings or files. This app is built using React and runs directly in your browser. It provides an easy-to-use interface with two text areas—just paste your content and convert instantly, or upload files for encoding.

This tool also supports decoding of .b64 files into their original binary form.

• Base64 Encode/Decode: Convert plain text to Base64 and vice versa.
• File Upload: Upload files to encode or .b64 files to decode.
• Download Results: Download the converted content as .b64 or .bin.
• Dark Mode: Toggle between light and dark themes.
• Tab Support: Proper indentation when using the "Tab" key in text areas.
• Simple and Intuitive UI: Clean interface that's beginner-friendly.
• Easy Deployment: Use npm run build and npm run deploy for production.

Try it out on GitHub Pages: Base64 Converter

Please note: this is the open source version of this online tool: Base64 Encoder/Decoder (Javascript) for Text/Binary Files

To run the tool locally:

1. Clone the repository:

git clone https://github.com/doctorlai/base64-converter.git
cd base64-converter

2. Install dependencies:

npm install

3. Start the development server:

npm run dev

4. Run tests:

## or: npm test
npm run test

5. Test coverage:

npx vitest run --coverage

6. Coding format check: Use prettier to either check or format the source code:

npm run format
## fix the code style automatically
npm run format:fix

6. Open http://localhost:5173/base64-converter/ in your browser.

1. Enter plain text in the input box.
2. Click ENcode → to encode the string to Base64.
3. Enter Base64-encoded string in the input box.
4. Click “← Decode” to decode.

• To encode a file:

  • Select a file using the "Load File" button.
  • If the file is binary, it will be encoded automatically.
  • Click Save File to save the result as .b64.

• To decode a file:

  • Select a .b64 file using the "Load File" button.
  • On success, the output will show the decoded binary (which seems random output).
  • Click Save File to save the decoded content (in binary).

Use the 🌞/🌙 toggle on top to switch between Light and Dark mode.

We welcome contributions!

1. Fork the repo.
2. Create your feature branch:

git checkout -b feature-name

3. Commit your changes:

git commit -am 'Add cool feature'

4. Push to GitHub:

git push origin feature-name

5. Open a pull request 🚀

This project is licensed under the MIT License — see the LICENSE file.

Here is the AI generated wiki

• Made with ❤️ by @justyy
• Initial Boilerplate code contributed by ChatGPT-4o and o4-mini.
• Like this project? Consider buying me a coffee ☕