Browser Password Manager Extension

Browser-built-in password managers (Chrome, Safari, Edge) are convenient but they're scoped to one browser, sync only inside one ecosystem, and use weaker key derivation. They're fine for casual use, weak for primary security.

Third-party extensions give you cross-browser sync, stronger key derivation, breach monitoring, TOTP, and shared vaults — features browser-built-in managers don't ship. PassCryp's extension does all of the above with a zero-knowledge architecture and an open-source codebase you can audit.

The extension matches the current page's domain against your vault locally — the vault is decrypted in your browser session, no network call needed for matching. When the extension fills a field, it injects the plaintext into the form via standard DOM APIs.

PassCryp's extension never sends your vault contents to a third party, never logs which sites you visit, and never tracks usage analytics. Telemetry is opt-in; if you opt out, the extension makes zero non-essential network calls.

Chromium browsers (Chrome, Edge, Brave, Arc, Vivaldi): full extension support, including form detection, TOTP injection, and save-on-submit.

Firefox: extension shipping in 2026 Q1. The architecture works; we just haven't finished the Firefox build pipeline.

Safari: not on the immediate roadmap. Safari's extension model is fundamentally different and would require a separate native build. We may revisit in 2027.