Offsend Browser Extension

Offsend helps you catch sensitive data before it is sent to web AI chats. When you write or paste a prompt and press Send, the extension checks the text locally in your browser. If it finds API keys, tokens, private keys, emails, phone numbers, IDs, card-like values, or other sensitive data, you can mask them before the prompt is submitted. Masked values are replaced with readable placeholders like {{API_KEY_1}} or {{EMAIL_1}}, so the prompt still makes sense without exposing the original data. You can also restore masked values later when needed. Local scanning Prompt content is scanned on your device. Offsend does not upload prompts, findings, or the sites you use for scanning. There is no server-side analysis and no cloud account required. The extension only uses the network for licensing, updates, and an optional anonymous active-install ping. That ping does not include prompt content, detected values, or browsing details, and can be turned off. What Offsend helps with