Base64 Encoder & Decoder

100% Client-Side

Convert plain text to Base64 encoded format or decode Base64 strings back to human-readable text. Private, secure, and fast.

✓ Local Validation✓ Size Metrics: 0 B → 0 B✓ 0ms Latency✓ 100% Private
input.txt
output.b64
code

Converted output will be displayed here.

What is Base64 Encoding?

Base64 is a binary-to-text encoding scheme that represents binary data in an ASCII string format. It is widely used in web development and DevOps workflows to safely transmit binary media (like images, icons, or certificate keys) over text-based protocols (like JSON, HTML, or email MIME headers) without data corruption.

How to Encode and Decode Base64

Simply type or paste your input into the text field. Click 'Encode' to turn plain text into a Base64 string, or click 'Decode' to parse a Base64 string back into human-readable text. The tool calculates sizes, helps you copy results with a single click, and processes everything instantly.

FAQ

Does Base64 encrypt data?

No. Base64 is merely a visual encoding scheme, not an encryption method. Anyone can easily decode a Base64 string back into its original text, so never use it to hide passwords or sensitive credentials.

Does it work offline?

Yes, because the Base64 logic executes entirely inside your browser's JavaScript engine, it runs locally and securely without network requests.

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