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Base64 Encoder

Encode and decode texts in Base64 online.

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Mode

Encode

Flavor

standard

Delivery

Payload

Preset

Texto seguro

Source and presets

Input and presets

Presets

File

Input text

Máx. 8 MB.63 / 8,388,608

Output policy

Base

Options

Advanced output

Options

MIME type

Result and distribution

Input

0 B

Output

0 B

Delta

0 B

final payload

Fluxo codificado. Variação total de 0 bytes nesta rodada.

File batch

Batch files

Batch

No files loaded yet.

Base64 is NOT encryption. It is just a reversible encoding: anyone with the payload can trivially decode it. Do not use it to store passwords, API keys, JWTs or PII. If the string contains personal claims (LGPD/GDPR), treat it as sensitive data. Everything is processed locally in your browser — nothing is sent to servers.

§ How to use

How to encode and decode Base64

Convert text and files to Base64 and back — encoding/decoding runs locally in your browser.

Pick a mode
Choose Encode (text/file → Base64) or Decode (Base64 → text/file).
Add the input
Paste text, or drop a file to encode. Decoding accepts a Base64 string or data URI.
Convert
The result updates instantly. Everything is processed in-browser — nothing is uploaded.
Copy or download
Copy the output to the clipboard or download the decoded file.