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Online Base64 Encoder & Decoder

Encode and decode Base64 string formats adhering to RFC 4648 standards.

Interactive Tool Workspace

In-Browser Execution • 100% Private
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How to Use This Tool

  1. Step 1: Paste text or Base64 string.
  2. Step 2: Click Encode or Decode button.

Key Features & Advantages

  • RFC 4648 compliant Base64 engine.
  • UTF-8 full multi-byte character support.

Technical Details & Specifications

Uses browser native atob() and btoa() wrappers combined with TextEncoder API.

Frequently Asked Questions

Is Base64 encryption?

No, Base64 is an encoding format, not security encryption.

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