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🔐 Base64 Encoder / Decoder

Encode any text to Base64 or decode Base64 strings back to readable text.…

Base64 Tool

📎 Embed This Calculator

Free to embed on your website. Courtesy of JustCalculators.app.

<iframe src="https://justcalculators.app/Utility/base64-encoder-decoder.html" width="100%" height="600" frameborder="0" title="Base64 Encoder / Decoder" loading="lazy"></iframe>

🔗 Base64 Encoder / Decoder — powered by JustCalculators.app

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How to Use the Base64 Encoder / Decoder

Base64 encoding converts binary data into ASCII text using 64 characters (A–Z, a–z, 0–9, +, /). It's used to embed binary data (images, files) in text-based formats like HTML, CSS (data URIs), JSON, and email attachments. Base64 increases data size by approximately 33%.

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