Free Base64 Converter
Quickly encode text into Base64 format or decode Base64 into plain text for free.
How to Use the Base64 Converter
Easily encode plain text into a Base64 string or decode a Base64 string back into its original, human-readable text form. This tool is perfect for developers and anyone needing to transmit data in a text-only format. All conversions happen instantly and securely in your browser.
- Step 1: Enter Your Data. Paste your plain text or Base64 string into the top "Input" box.
- Step 2: Choose an Action. Click the "Encode to Base64" button if you entered plain text, or click the "Decode from Base64" button if you entered an encoded string.
- Step 3: Get the Result. The converted output will instantly appear in the "Output" box below, ready for you to copy to your clipboard.
Key Features
- Reliable Two-Way Conversion: Seamlessly switch between encoding plain text to Base64 and decoding Base64 back to plain text without needing separate tools.
- Full UTF-8 Support: Our tool correctly handles a wide range of international characters, symbols, and emojis, ensuring accurate conversion every time.
- Completely Secure and Private: Your data is processed entirely on your device using your browser's built-in functions. Nothing is ever sent to our servers, guaranteeing the privacy of your information.
- Efficient Interface: A clean, no-fuss interface with clear buttons for encoding, decoding, and copying the result with a single click.
Frequently Asked Questions (FAQ)
What is Base64 encoding?
Base64 is a group of binary-to-text encoding schemes that represent binary data in an ASCII string format by translating it into a radix-64 representation. It's commonly used to embed image data directly into HTML or CSS, or to transmit data in text-based media like email or JSON.
Why did my decoded text look like gibberish?
This usually happens if the input string is not a valid Base64 string, or if it was encoded from something other than plain text (like a file). This tool is designed for encoding and decoding plain text strings.
Is there a size limit?
There are no artificial limits imposed by our tool. However, since the processing happens in your browser, extremely large strings (many megabytes) might cause your browser to become slow or unresponsive depending on your computer's resources.