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Base64 Encode/Decode

Encode plain text to Base64 or decode Base64 back to plain text.

100% Client-Side (Data never leaves your device)
WHATWG Compliant Encoder

Base64 Encoder / Decoder Suite

Encode and decode strings using modern TextEncoder/TextDecoder. Fully supports UTF-8 and Emojis. Includes URL-Safe mode for JWTs and real-time size overhead analytics.

Paste text on the left to see output.

💡 Processed locally using TextEncoder/TextDecoder. No data leaves your browser. 100% private and secure.

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How to Use Base64 Encode/Decode

  1. Toggle between Encode and Decode modes using the switch button.
  2. Paste your plain text or Base64 string into the left input box.
  3. The system converts and displays the result in the right panel in realtime.
  4. Click copy to use the output string.

About & How Base64 Encode/Decode Works

Detailed insight and guide for optimal results

A Base64 encoder and decoder for converting plain text to Base64 or decoding Base64 strings back to original text.

Base64 is widely used for embedding images in HTML/CSS, sending data via APIs, and storing JWT data. Developers frequently convert between Base64 and plain text.

Expert Tips for Best Results

  • Select Encode or Decode mode.
  • Paste text or Base64 string in the input.
  • Results update in real-time.
  • Supports Unicode and Thai characters.

คำถามที่พบบ่อย — Base64 Encode/Decode

This tool allows you to encode plain text to Base64 or decode Base64 back to plain text quickly, accurately, and easily, without needing complex software or manual scripting.
Yes, 100% secure. All computations and file processings are performed directly in your web browser (client-side), meaning your data never leaves your device.
No, this utility is completely free. You can use the Base64 Encode/Decode to encode plain text to Base64 or decode Base64 back to plain text as many times as you need without any restrictions.

⭐ ให้คะแนนเครื่องมือนี้

4.7

/ 5.0

25

รีวิว

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