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Encoding & Decoding

Base64 Encoder/Decoder

Encode and decode Base64 strings with UTF-8 Unicode, emojis, and URL-safe mode.

Text to Encode
Base64 Output

How to Use the Online Base64 Encoder/Decoder

Convert text to Base64 and Base64 back to plain text. Fully supports UTF-8 multi-byte characters and emojis, URL-safe Base64 (- and _), and chunk splitting.

Designed for writers, editors, students, and software developers, our Base64 Encoder/Decoder runs 100% locally in your web browser. This means your text is never transmitted across the network, stored on databases, or analyzed by third-party tracking algorithms.

Key Features & Capabilities

  • Instant Client-Side Processing: Calculations update in real-time as you type or paste without lag.
  • One-Click Actions: Convenient buttons to Copy output, Clear input, Paste clipboard data, and Load Sample Text.
  • Unicode & Internationalization: Robust handling of multi-byte characters, accents, diacritics, and emojis.
  • 100% Free & Private: Unlimited usage with zero registration required.