Base64 Encoder/Decoder
Encode text or decode Base64 strings instantly.
About this tool
Base64 encoding turns text and binary data into a safe string of letters, numbers, and symbols that can be sent in emails, URLs, or APIs without breaking. Our Base64 encoder and decoder does both directions: paste plain text to get Base64, or paste Base64 to get back the original content. It's useful when you need to embed small images in HTML or CSS, pass tokens in headers, or work with APIs that expect Base64. All processing happens in your browser, so your data never leaves your device. Switch between encode and decode with one click, and copy the result straight to your clipboard. No sign-up, no file size limits for normal use, and no tracking. A simple, reliable way to work with Base64 every day.
How to use
Enter text to encode to Base64, or paste a Base64 string to decode. Use the mode toggle to switch between encode and decode.
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Pro tips
- •Use keyboard shortcuts where available to speed up your workflow.
- •Large inputs are processed in your browser—nothing is sent to our servers.
- •Bookmark this tool for quick access from your browser bar.