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Base64 Encoder & Decoder

Encode plain text or decode Base64 strings safely with full UTF-8 Arabic and Unicode support.

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How to Encode and Decode Base64 Strings

  1. Paste raw ASCII/UTF-8 text or Base64 encoded payload.
  2. Select "Encode" or "Decode" mode.
  3. View the instantaneous conversion with complete Unicode character support.

RFC 4648 Base64 Specification

  • Base64 divides binary data into 6-bit chunks, representing each group using a set of 64 ASCII characters (A-Z, a-z, 0-9, +, /) with "=" padding.

Example

  • Text: ToolFlux Lab
    Base64: VG9vbEZsdXggTGFi

Common Applications

  • Encoding basic authentication headers (Authorization: Basic ...).
  • Embedding small inline data URIs in CSS and HTML.
  • Decoding JSON Web Tokens (JWT) payload segments.

Frequently Asked Questions

Is Base64 encryption?

No. Base64 is an encoding format designed for safe binary-to-text transmission, not cryptographic security. Anyone can decode it.

Does this support Arabic and Unicode characters?

Yes, our encoder uses UTF-8 byte serialization to safely support multilingual scripts.