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Base64, URL & Hex Encoder / Decoder Online

Encode or decode Base64, Base64URL, URL encoding, hex, HTML entities and ROT13 in one place. Handy for analysing suspicious links, email content and tokens during investigations.

FreeNo sign-upAnalysis
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Base64 encoder/decoderAnalysis
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100% privateRuns in your browser, nothing uploaded
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Instant resultsNo sign-up, no install
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Base64 encoder/decoder

๐Ÿ”’ Runs locally in your browser. Nothing you enter is uploaded.

How to use it

  1. Paste your text into Input.
  2. Tap the Encode or Decode button for the format.
  3. Copy the Output.

Frequently asked questions

Is Base64 encryption?

No. Base64 is an encoding anyone can reverse. Never use it to protect secrets.

Why do attackers use encoding?

Encoding hides commands and URLs from casual inspection and simple filters. Decoding them is a routine analyst task.

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