Base64 Encoder & Decoder
Encode text to Base64 or decode Base64 strings back to plain text. Runs entirely in your browser — your data never leaves your device.
Base64
Encode or decode Base64 strings
How to use this tool
1. Enter your input. Use the form above — all processing happens in your browser, no data is sent to any server.
2. View the result. The output appears instantly below the input. Copy any value with one click.
3. Explore related tools. See the related tools section below for adjacent calculators and converters.
4. Bookmark this page. This tool runs entirely client-side, so it works offline once loaded. Add it to your bookmarks for quick access.
Frequently Asked Questions
Everything you need to know about this currency pair
Base64 is used to encode binary data (like images, files, or special characters) into a plain-text format that can be safely transmitted over text-only channels — email, JSON, URLs, HTML, or XML. It's also used in JWT tokens, data URIs, and basic HTTP authentication. Base64 isn't encryption — it's a reversible encoding, so never use it to secure sensitive data.