Censys Search Pricing 2026: Plans, Costs & Free Options

Last Updated: May 2026

Internet-wide scanning and search engine for discovering and monitoring exposed assets and services. This page breaks down Censys Search's Freemium pricing model, what it includes, and how it compares to free alternatives in the Threat Intelligence category.

Pricing Overview

Pricing Model

Freemium

This means the tool is free to use and typically open-source — you self-host it, customize it, and pay nothing for the software itself.

Is Censys Search Free?

Yes, Censys Search is completely free and open-source. You can download, use, and modify it without paying any license fees.

Is Censys Search Worth It?

Censys Search is rated 4.5/5 in our Threat Intelligence directory and is completely free, which makes it an easy recommendation for any team that can self-host and manage their own deployment. You get full functionality without licensing costs, though you trade vendor support for community forums and documentation. For Threat Intelligence workflows, Censys Search delivers strong value, especially for individuals, students, and budget-conscious teams. The main consideration is operational overhead — you own the install, updates, and tuning. If your team has the technical capacity, Censys Search is well worth adopting.

Cheaper Alternatives

If Censys Search's pricing is out of budget, these Threat Intelligence tools offer free or freemium options:

Frequently Asked Questions

How much does Censys Search cost?

Censys Search uses a Freemium pricing model. This means the tool is free to use and typically open-source — you self-host it, customize it, and pay nothing for the software itself. For exact current pricing, visit the Censys Search website directly — vendors update tiers and quotas regularly.

Is there a free version of Censys Search?

Yes, Censys Search is completely free and open-source. You can download, use, and modify it without paying any license fees.

What are cheaper alternatives to Censys Search?

In the Threat Intelligence category, the most popular free or freemium alternatives are VirusTotal, MISP Platform, Filigran OpenCTI Cloud. Each offers a comparable feature set at lower or zero cost — see our /alternatives page for full breakdowns.