Base64 Encoder & Decoder – Free Online Tool

✓ Free Base64 Encoder & Decoder Online

Encode text to Base64 or decode Base64 back to plain text. Supports Chinese characters and Unicode. 100% browser-based.

🔄 Encode & Decode — Switch between encode and decode modes with a single click. Bidirectional conversion made simple.
🌏 Unicode Support — Full UTF-8 support including Chinese, Japanese, Korean, and emoji. Encode any character without issues.
⚡ Instant Results — Results update in real time as you type or paste. No need to click a button.
🔒 Privacy First — All encoding and decoding uses browser APIs (btoa/atob). No data is transmitted anywhere.

⚠️ JavaScript is required This tool runs entirely in your browser and needs JavaScript. Please enable JavaScript, or open this page in a modern browser with JavaScript support, to use all features.

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