Decodex - The Auto URL Decoder

Automatically decodes Base64-encoded URLs, including multiple encoding layers.

Decodex turns Base64-encoded web addresses into readable, clickable links right on the page. Stop copying encoded URLs into a separate decoder. With automatic decoding enabled, Decodex finds supported HTTP and HTTPS addresses in page text and reveals the destination URL as a link. FEATURES • Supports standard Base64, Base64URL, missing padding, percent-encoded Base64 and UTF-8 URLs. • Unwraps multiple Base64 layers until it reaches a valid web address. • Detects newly added posts, comments and updated text on dynamic pages. • Offers a compact popup to switch decoding on or off and rescan the current page. • Restores links created by Decodex to their original encoded text when switched off. • Preserves existing hyperlinks, buttons, input fields and editable areas. • Supports English, Korean, Japanese, Simplified Chinese, Traditional Chinese and Spanish, with light and dark themes. PRIVACY AND PERMISSIONS Page text and decoded URLs are processed in your browser and are not sent to an external server. Only the on/off preference is stored using Chrome sync storage. Page access is used to find and replace encoded URLs; storage permission keeps your setting. Links display the actual destination and open only when you click them. Only HTTP and HTTPS addresses become links. Decoding a link does not guarantee that its destination is trustworthy. HOW TO USE Install Decodex and open a webpage. Leave automatic decoding on to convert supported strings, or use the popup to rescan the page. Switching it off stops decoding and restores the original text. Reload existing webpages after updating the extension. LIMITATIONS Chrome internal pages and other restricted pages cannot be processed. Content inside shadow DOM, iframes, and a single encoded string split across separate text nodes is not currently processed. Results may vary with a site's structure. Base64 is an encoding format: Decodex does not decrypt password-protected data or bypass access restrictions. For the web decoder, visit https://decodex.fyi/ko/