Base64 Encode / Decode

Encode and decode Base64 with Unicode support.

Base64 Encode / Decode

Encode or decode Base64 text safely.

Input
Output

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FAQ

Unicode support?
Yes, UTF-8 encode/decode.
Uploads data?
No, fully local.
Invalid Base64?
You get a clear decode error.

Base64 Encode / Decode · 无极工具 2026

Encode and decode Base64 with Unicode support.

What can it do?

  • Text to Base64
  • Base64 back to text
  • UTF-8 friendly
  • One-click copy

Why choose this tool?

  • Daily API debugging helper
  • Instant local processing
  • No terminal switching

How to use?

  1. Paste text or Base64
  2. Encode or decode
  3. Copy result

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