Text & Code Tools

Base64 Encoder / Decoder

Encode text to Base64 or decode Base64 back to plain text. Supports Unicode characters and file uploads.

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How to Use Base64 Encoder/Decoder

  1. 1
    Choose Your Mode

    Select "Encode" to convert text to Base64, or "Decode" to convert Base64 back to readable text.

  2. 2
    Enter Your Input

    Type or paste your text directly, or upload a file. The tool supports Unicode characters, emojis, and binary files.

  3. 3
    Get Your Result

    Click the button to convert. Copy the result to clipboard or download it as a file for later use.

Why Use YaliKit's Base64 Tool?

Full Unicode Support

Properly handles emojis, accented characters, Chinese, Japanese, and all special characters without errors.

File Upload Support

Encode images, documents, or any file to Base64. Perfect for embedding assets in HTML, CSS, or JSON.

100% Private

All encoding and decoding happens in your browser. Your data never leaves your device or gets sent to any server.

Quick Swap Feature

Easily swap input and output to re-encode or decode results. Save time when working with multiple conversions.

Frequently Asked Questions

What is Base64 encoding used for?
Base64 encoding is used to convert binary data into ASCII text format. Common uses include embedding images in HTML/CSS, encoding email attachments (MIME), storing binary data in JSON, and creating data URLs for web applications.
Is Base64 encoding the same as encryption?
No, Base64 is encoding, not encryption. It transforms data into a different format but doesn't provide security. Anyone can decode Base64 data. For security, use proper encryption methods like AES or RSA.
Why does Base64 increase file size?
Base64 encoding increases data size by approximately 33%. This is because it converts every 3 bytes of binary data into 4 ASCII characters. Despite the size increase, it's necessary for safely transmitting binary data over text-based protocols.

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