Base64 Decoder

Decode Base64 text back to plain text.

Base64 Decoder restores plain text from Base64 strings produced by encoders or external tools.

Input
Output

When to use Base64 Decoder

  • Reading Base64 samples from docs
  • Checking encoded fixtures
  • Reversing demo payloads

Example

SGVsbG8gSFRNTCBDU1MgSlM=

Benefits

  • Free to use—no account required
  • Runs in your browser
  • Instant results with no software install
  • Basic processing does not upload your content to a server
  • Invalid Base64 strings will error—check padding and alphabet characters.

Not the same as

URL percent-decoding is a different tool: URL Decoder.

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