Simple Base64 decoder

Decode copied Base64 text without leaving the page. Simple Base64 Decoder detects Base64 text when you copy it and shows the decoded result in a compact on-page message. If the result is an HTTPS link, you can open it directly. Processing happens locally in your browser. Highlights: • Automatic decoding after copy • Standard and URL-safe Base64 support • One-click copy for decoded text • Optional local decode history • Adjustable minimum length and display duration • Quick on/off control No account is required. Copied and decoded content is not sent to the developer or third parties. Settings and optional history remain in Chrome’s local extension storage.