Base64 Text Encoder

Encode plain text or UTF-8 strings into standard Base64 representation in real time.

How It Works & Processing Standards

Encode plain text or UTF-8 strings into standard Base64 representation in real time.

Your input data is never sent to any server and is securely processed on your device.

Current Limits

  • Maximum input length: 100,000 characters

Base64 Text Encoder is a 100% free, browser-based online utility. All calculations and file conversions run locally inside your browser (Local-First) without sending data to remote servers, keeping your documents and inputs strictly private.

How to Use Base64 Text Encoder

  1. 1
    Enter TextType or paste the plain text string into the input area.
  2. 2
    Copy Base64Copy the resulting Base64 encoded string.

Common Use Cases

  • Embedding text in data URIs, preparing API basic authentication tokens, and safe text transport
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