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Base64 Encode

Free

Convert plain text, URLs, or binary data to Base64 encoded strings. Useful for embedding data in JSON, HTML, or sending data in HTTP headers. Runs entirely client-side.

How to Use Base64 Encode

  1. 1

    Type or paste the text, URL, or data string you want to encode into the input field.

  2. 2

    The Base64-encoded output appears instantly in the result panel below.

  3. 3

    If your encoded string will be used in a URL or filename, toggle "URL-safe" mode to replace + and / with - and _ characters.

  4. 4

    Click "Copy" to copy the encoded string to your clipboard.

Features

  • ✓ Instant encoding
  • ✓ URL-safe Base64 option
  • ✓ Handles Unicode text
  • ✓ Copy to clipboard

Frequently Asked Questions

What is Base64 encoding?

Base64 is a binary-to-text encoding scheme that represents binary data using 64 printable ASCII characters. Commonly used in email attachments, data URIs, and API tokens.