Base64 Encoder online free — large files supported

Encode text to Base64.

Explanation

Base64 Encoder is a fast, free online tool for encoders. Paste your input, click Run, and get results instantly via our API-backed processing.

Input Format

Plain Text

Example

Use Cases

  • Encode binary data like images or files into Base64 format for embedding in JSON or XML payloads
  • Convert authentication credentials into Base64 for HTTP Basic Authentication headers
  • Encode email attachments to MIME Base64 format for transmission via SMTP protocols
  • Transform binary data into text-safe Base64 strings for storage in databases or configuration files
  • Encode API keys or tokens into Base64 format for secure transmission in URL parameters or headers

How to Use Base64 Encoder

  1. Paste or type your input data in the left text area
  2. Click the Run button to process via the API
  3. Copy the result from the output area

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Frequently Asked Questions

How is my data processed?

Data is processed on the server via API; we do not store content beyond processing and only log minimal technical metadata.

What is Base64 Encoder?

Base64 Encoder is a free online tool that processes your input via a secure API and returns results instantly.

Is Base64 Encoder free to use?

Yes, Base64 Encoder is completely free with no registration required. You can also access it via our API with a generous free tier.

Is my data safe with Base64 Encoder?

Data is processed on the server via API; we do not store content beyond processing and only log minimal technical metadata.

Can I use Base64 Encoder for large files?

Yes, Base64 Encoder supports large files. For very large datasets, consider using the API endpoint for batch processing.