Phishing Catcher is a free anti-phishing solution. PhishingBox KillPhish is a commercial anti-phishing solution by PhishingBox. Features, integrations, deployment and the company behind each one, side by side.
Catch possible phishing domains in near real time by looking for suspicious TLS certificate issuances reported to the Certificate Transparency Log (CTL) via the CertStream API.
Email threat scanning and reporting add-in for Microsoft 365 and Google
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Based on what each listing shows: deployment, company size, price and open source.
Phishing Catcher fits if you need to run it on your own servers, you need a free product and you want an open-source product.
PhishingBox KillPhish fits if you want a cloud product.
Common questions when comparing Phishing Catcher vs PhishingBox KillPhish for anti-phishing.
Phishing Catcher: Catch possible phishing domains in near real time by looking for suspicious TLS certificate issuances reported to the Certificate Transparency Log (CTL) via the CertStream API.
PhishingBox KillPhish: Email threat scanning and reporting add-in for Microsoft 365 and Google. Built by PhishingBox.
The table above shows where their features, integrations, deployment and company size fit differ.
Phishing Catcher is open-source with 1,757 GitHub stars. PhishingBox KillPhish is made by PhishingBox. The vendor behind a product decides its roadmap, support, and longevity, so check each company's profile before you commit.
Often, yes. Phishing Catcher and PhishingBox KillPhish are both Anti-Phishing products. Key differences: Phishing Catcher is Free while PhishingBox KillPhish is Commercial, Phishing Catcher is open-source. Use the table above to see where features, deployment and company size fit differ.
No Anti-Phishing shortlist yet. This is the closest one.
Updated 2026-11-02
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