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About Base64 Encoder & Decoder

Our free online Base64 Encoder & Decoder lets you quickly encode or decode text and files to/from Base64 format. Base64 encoding is essential for data transmission, email attachments, and embedding files in web pages. Use this tool to ensure your data is safely and efficiently converted for any application.

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Key Features
  • Encode text to Base64 format instantly
  • Decode Base64 back to readable text
  • Support for file encoding and decoding
  • Client-side processing for privacy and security
  • No file size limits or registration required
  • Copy results with one click
How to Use the Base64 Encoder & Decoder
  1. 1**Enter or Upload:** Paste your text or upload a file.
  2. 2**Choose Action:** Select 'Encode' to convert to Base64 or 'Decode' to revert.
  3. 3**Get Result:** Instantly view and copy the output.
  4. 4**Download (Optional):** Download the result as a file if needed.
Why Use This Tool?
  • **Universal Compatibility:** Base64 is widely used for data exchange in web, email, and APIs.
  • **Data Security:** Encoded data is less prone to corruption during transmission.
  • **No Server Uploads:** All operations are performed in your browser for maximum privacy.
  • **Convenience:** No installation or sign-up required.
Common Use Cases
  • Embedding images or files in HTML/CSS as Base64 strings
  • Encoding email attachments for safe delivery
  • Transferring binary data in JSON or XML APIs
  • Decoding Base64 data from webhooks or third-party services
  • Quickly converting files for web development or testing
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's commonly used to encode data for transmission over media that are designed to deal with textual data.

Is Base64 encoding secure?

Base64 is not an encryption method. It only encodes data for safe transport or storage. For security, use encryption in addition to encoding.

Can I encode large files?

Yes, this tool processes files in your browser and does not impose file size limits, but performance may vary based on your device.