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Base64 Encoder / Decoder

Encode text to Base64 or decode Base64 back to text.

Processed locally — your data is never uploaded.

Mode

Understanding your result

Base64 is for safe transport of data through text-only channels — it is encoding, not encryption, and adds no security.

Formula and method

Base64 represents binary data as 64 printable characters. Toolzio encodes via UTF-8 bytes so emoji and accents survive the round trip.

Worked example

“Toolzio” encodes to “VG9vbHppbw==”, which decodes back to “Toolzio”.

How to use this tool

  1. Choose Encode or Decode.
  2. Paste your input.
  3. Copy the result.

Common mistakes to avoid

  • Treating Base64 as encryption — it is easily reversible.
  • Decoding text that is not valid Base64.

About the Base64 Encoder / Decoder

Encode any text to Base64, or decode Base64 back to readable text. UTF-8 characters are fully supported.

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Frequently asked questions

Does it support Unicode?

Yes. Encoding and decoding use UTF-8, so international characters and emoji work correctly.