How do I encode text to Base64?

Paste your text into the Base64 Encoder, click Encode, and the Base64 string will appear instantly in the output field.

What is Base64 used for?

Base64 is used to encode binary data (like images or files) as ASCII text for safe transmission in emails, URLs, and JSON APIs.

How do I decode a Base64 string?

Paste the Base64 string into the decoder input, click Decode, and the original text or data will be displayed.

Is Base64 the same as encryption?

No, Base64 is encoding, not encryption. It is easily reversible and should not be used to secure sensitive data.

Why does Base64 end with == signs?

Base64 uses = as padding to ensure the output length is a multiple of 4 characters. One or two = signs indicate padding was added.

Base64 Encoder / Decoder – Dev Tools Online

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Quick Answer

Base64 encoding converts binary data or text into a safe ASCII string for transmission in emails, URLs, and APIs — for example, "Hello" becomes "SGVsbG8=". Use this tool to encode or decode Base64 strings instantly in your browser.

Encode text to Base64 or decode Base64 back to text. Auto-detects direction.

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Output

Cite This Tool

Base64 Encoder / Decoder. (2026). DevTools Online. Retrieved from https://devutilitypro.com/base64-encoder-decoder/

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