Breach Check for Passwords
Breach Check for Passwords is a Firefox extension that hashes passwords locally and sends only a five-character hash prefix to a breach lookup service. It displays filtered breach results and evaluates password length, character variety, and obvious patterns offline for Firefox users.
Overview
7 featuresIn the Browser DevTools & extensions space, Breach Check for Passwords takes a focused approach. It focuses on checking whether passwords have appeared in breaches without sending the full password to an online service. Breach Check for Passwords is a consumer product aimed at firefox users concerned about password security. Breach Check for Passwords costs nothing to use. It runs on the web and embeddable surfaces.
Behind Breach Check for Passwords is isa, and it first shipped in 2026. Among its 7 catalogued features are local hashing, breach lookup, and filtered results. The interface is available in 32 languages, including Czech, German, and Greek. It exposes integrations via a public API.
Summary written by a language model from the project’s public pages.
- Local hashing
- Breach lookup
- Filtered results
- Password strength rating
- Pattern detection
- Firefox for Android
- Offline analysis
Built with & integrations
Trust & compliance
Indexing history
1What PulseGate has recorded for this listing
- Indexed27 Aug · 16:01 UTCBreach Check for Passwords verified against its public sourceSource: PulseGate · Open
Frequently asked questions about Breach Check for Passwords
- What is Breach Check for Passwords?
- Breach Check for Passwords focuses on checking whether passwords have appeared in breaches without sending the full password to an online service. It is catalogued under Browser DevTools & extensions on PulseGate.
- Who is Breach Check for Passwords for?
- Breach Check for Passwords is a consumer product built for firefox users concerned about password security.
- Is Breach Check for Passwords free?
- Yes — Breach Check for Passwords is free to use.
- What platforms does Breach Check for Passwords run on?
- Breach Check for Passwords runs on the web and embeddable surfaces.
- Is Breach Check for Passwords still active?
- Unverified. Breach Check for Passwords has not been re-checked since it entered the index, so there is no finding either way — and only a positive finding would say otherwise.
- What projects are similar to Breach Check for Passwords?
- Similar projects tracked by PulseGate include "Can I React?", HTML-Essentials, and AJAX Admin Navigation Sidebar AJAX."Can I React?"HTML-EssentialsAJAX Admin Navigation Sidebar AJAX
- Who makes Breach Check for Passwords?
- Breach Check for Passwords is developed by isa.
- How long has Breach Check for Passwords been around?
- Breach Check for Passwords first shipped in 2026.
Also in Browser DevTools & extensions
Same category — not a similarity match