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Base64 Encode / Decode

Encode text to Base64 or decode Base64 back to readable text instantly.

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Base64 Encoder Decoder

Encode text to Base64 or decode Base64 back instantly.

✓Free · No signup · Works offline
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Base64 Encoder Decoder

Free Base64 encoder and decoder online. Encode text to Base64 or decode Base64 strings instantly.

How to Use

  1. Select Encode or Decode mode
  2. Paste your text or Base64 string
  3. Result appears instantly
  4. Copy the output

Key Features

  • Encode and decode in one tool
  • Supports Unicode text
  • URL-safe Base64 option
  • No file size limits for text

Frequently Asked Questions

Base64 is used to encode binary data in emails, APIs, and web applications.

No, Base64 is encoding not encryption. Anyone can decode it.

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Frequently Asked Questionsabout Base64 Encoder Decoder

Base64 converts bytes or special characters into text-safe characters so data can be transmitted in systems that expect plain text.
No. Base64 is encoding, not encryption. Anyone can decode it without a secret key.
Common use cases include data URLs, API payload transport, email MIME, JWT segments, and basic auth headers.
Those characters are padding used to align data length; they are expected and not an error.
URL-safe Base64 replaces + and / with - and _ so the encoded value can be used in URLs safely.
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