Free Base64 Text & File Encoder / Decoder

Encode text and files to Base64 and decode Base64 strings to UTF-8 text or binary files. Supports URL-safe base64 and data URI formatting.

🔒 100% In-Browser & Zero Server Uploads

About Base64 Text & File Encoder / Decoder

Encodes arbitrary UTF-8 text and binary data into ASCII characters using RFC 4648 Base64 specification, with support for standard and URL-safe padding.

How to Use Base64 Text & File Encoder / Decoder Online

  1. Select Encode or Decode mode.
  2. Type or paste your input into the text area.
  3. View the instant converted output and copy with 1-click.

Frequently Asked Questions

Does this tool support non-English Unicode characters (emojis, accents)?
Yes, it uses TextEncoder and TextDecoder for full multi-byte UTF-8 Unicode compatibility.