Base64 Encoder and Decoder
Easily encode text and files into Base64 format, or decode Base64 strings back into readable text. All processing happens locally in your browser for maximum speed and privacy.
How to use this tool
- To encode text: Paste your text into the input box and click "Encode to Base64".
- To decode text: Paste your Base64 string into the input box and click "Decode to Text".
- To encode a file/image: Click "Upload File" to select a file from your device. The Base64 data URL will be generated instantly.
- If you encode an image, a live preview will appear below the output box.
- Click the "Copy" button to copy the result to your clipboard.
Why use our Base64 Encoder and Decoder?
Base64 encoding is a fundamental tool for web developers. Whether you need to embed a small image directly into your CSS to save an HTTP request, encode credentials for Basic Authentication in an API header, or safely transport binary data inside a JSON payload, our tool handles it instantly. Because it runs entirely client-side, your sensitive data and files never leave your device.
Frequently Asked Questions
What is Base64 encoding?
Base64 is a binary-to-text encoding scheme that represents binary data in an ASCII string format. It translates data into a radix-64 representation, using only printable characters (A-Z, a-z, 0-9, +, and /). This is essential for transmitting data over media that are designed to deal with textual data, ensuring the data remains intact without modification during transport.
Is Base64 encryption?
No, Base64 is NOT encryption. It is an encoding mechanism. It does not use a key and can be easily decoded by anyone who has the Base64 string. Never use Base64 to secure or hide sensitive data like passwords or personal information.
Why do developers use Base64?
Developers use Base64 to embed binary data (like images or fonts) directly into HTML, CSS, or JSON files. This reduces the number of HTTP requests a browser has to make, which can speed up page load times for small assets. It is also heavily used in email protocols (MIME) and API authentication (Basic Auth).
Can Base64 store images?
Yes! You can convert any image (PNG, JPG, SVG, WebP) into a Base64 string. This string can then be used directly in an HTML <img> tag using the "data:image/png;base64,..." syntax, or embedded in CSS as a background image.