Base64 Encoder & Decoder combines both directions in one page. Encode text with TextEncoder + btoa, or decode with atob + TextDecoder, then swap modes instantly.
Base64 Encode Decode
Base64 Encode / Decode
One tool for Base64 encode and decode with full UTF-8 support for Arabic, emoji, and symbols - fully local.
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What is this?
How it works
1. Choose Encode or Decode.
2. Paste text or Base64.
3. Convert locally in your browser.
4. Copy, download, or swap to the other mode.
Features
- Encode and decode in one tool
- Full UTF-8 support
- Format validity check for decode
- Swap between modes
Benefits
Handle Base64 text workflows without jumping between separate pages.
Trust & privacy
Your data is processed only in your browser. Studix does not upload or store it for this tool.
Frequently asked questions
No. Encoding and decoding run entirely in your browser.
Yes. Use Swap & switch mode after converting.