Our Base64 Encode / Decode Tool is a free and powerful online utility that helps you convert text or files into Base64 format and also lets you decode Base64 strings back to their original content. Whether you're a developer, cybersecurity analyst, data engineer, or just a curious user, this tool offers a fast and secure way to handle Base64 encoding and decoding in your browser.

Base64 encoding is commonly used to safely transmit binary data such as images, files, and encrypted data via text-based formats like JSON, XML, or email protocols. With our tool, you can encode to Base64 or decode Base64 strings with just a single click. No installations, no logins, and no data ever leaves your device.

Base64 is a binary-to-text encoding scheme that translates binary data into an ASCII string format using a 64-character set. It’s especially useful for embedding data into HTML, JavaScript, and CSS, or when storing data in databases where plain binary isn't supported.

For example, when you upload an image to a web server, the image is often converted to Base64 for safe transmission. Similarly, API payloads and authorization headers may include Base64-encoded content.

• Instant Base64 Encoding: Convert plain text, code, or file contents into a valid Base64 format in real time.
• Quick Base64 Decoding: Paste any Base64 string and decode it to its original text, file, or binary data.
• Supports File Uploads: Encode or decode files such as .txt, .json, .csv, and more using the file input option.
• Cross-Platform Compatibility: Works on all modern browsers – no software download required.
• Clipboard Copy & Download: One-click copy of results and option to download encoded or decoded output.
• Secure & Private: 100% browser-based – your input data stays on your device and never reaches any server.

1. Enter your plain text or Base64 string in the input area.
2. Select whether you want to Base64 encode or Base64 decode.
3. Click the corresponding button to process your data.
4. You can also upload a file for encoding or decoding directly.
5. Copy or download the result using the provided buttons.

That’s it! Whether you’re converting a JSON payload, decoding email attachments, or simply exploring how Base64 works, our tool makes the process seamless.

Here are common use cases where Base64 encoding and decoding are essential:

• Encoding images, videos, or files for inline HTML or CSS
• Decoding web tokens or authentication data (like JWTs)
• Transferring data safely over email or APIs
• Embedding files in XML or JSON objects
• Extracting original data from Base64-encoded sources

Thanks to our tool’s simplicity and power, anyone from beginners to experienced developers can work with Base64 encoding and Base64 decoding confidently and efficiently.

Skip the hassle of manual conversions or installing bulky software. With this easy-to-use online Base64 encoder and decoder, you’ll have everything you need to handle encoded data — for free, on any device, anytime. Whether you're trying to decode Base64 messages, encode configuration data, or test API inputs, this tool is your go-to resource.

Start using the tool now and streamline your workflow with the best online Base64 Encode / Decode tool available!