Extract Base64 Strings from Text

For developers and security analysts who need to quickly pull Base64 encoded data from logs, configs, or messages. Saves time and avoids manual errors.

Results update live as you type — no button needed. The Example button fills a sample input.

Why use Extract Base64 Strings from Text?

Instantly find all Base64 strings in any text

Works with mixed content like logs and JSON

No sign-up required, completely free

Preserves original order of appearance

Handles large text inputs efficiently

FAQ

What counts as a Base64 string?

We detect sequences of characters that match the Base64 alphabet (A-Z, a-z, 0-9, +, /, and = for padding) with a minimum length of 4 characters.

Can I extract multiple Base64 strings at once?

Yes, the tool extracts all valid Base64 strings found in the input text and lists them one per line.

Is my data sent to a server?

No, all processing is done locally in your browser. Your data never leaves your device.

Does it work with URL-safe Base64?

Currently, we support standard Base64 with + and / characters. URL-safe Base64 (using - and _) may not be fully detected.

Example input

Try it with this sample — paste it into the box above:

Session token: eyJhbGciOiJIUzI1NiIsInR5cCI6IkpXVCJ9. Confirm id: 12345

How to use Extract Base64 Strings from Text

  1. Enter or paste your data into the Paste your text box above.
  2. The result appears instantly in the Extracted Base64 strings box — everything runs in your browser, nothing is uploaded.
  3. Use Copy or Download to keep the result, or Example to load a sample first.

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