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Censys alternatives: 1 apps ranked by verified data

Facts checked Nov 1, 2026AppBreakup editorialHow we rank

Common reasons people leave Censys: free account covers only basic visibility into standard ports, and credit-based billing makes costs harder to predict. We ranked 1 alternatives by how directly each one replaces Censys, then by reviews, real visits and how recently each app's facts were checked against its own website. Shodan currently ranks first.

Quick comparison

#AppPricingOpen sourcePlatformsVerified factsScore
1Shodan logoShodanFree plan + paidNoWeb8 of 866.5
  1. Shodan logo

    1. ShodanTop pick

    Best for: Security researchers and IT teams checking what devices and services are exposed on the Internet

    Free plan + paidWeb

    66.5

    score / 100

    Why switch from Censys

    Simpler, long-established device search with an easy CLI and lower entry cost.

    Pros

    • Long-established index of device banners across the Internet
    • Official CLI and Python library for scripting searches
    • Network monitoring alerts for your own IP ranges

    Cons

    • Requires learning its filter syntax to get useful results
    • Filters, bulk downloads and scans consume paid credits
    • Website blocks many automated requests, making some info hard to reach
    Visit Shodan Details and reviews
    How this score is calculated
    Editorial fit ×0.3100
    Reviews ×0.363
    Clicks (90 days) ×0.150
    Freshness ×0.1585
    Votes ×0.150

    0 counted reviews, 0 up and 0 down votes. Full formula

    Is Shodan a good Censys alternative?

    Verified facts

    8 of 8 verified
    What it indexes
    Internet-connected devices
    Checked Oct 29, 2026help.shodan.io(opens source in a new tab)
    Command-line tool
    Yes, installed with pip
    Checked Oct 29, 2026cli.shodan.io(opens source in a new tab)
    Query credits
    1 credit = 100 results
    Checked Oct 29, 2026help.shodan.io(opens source in a new tab)
    On-demand scanning
    1 scan credit per IP
    Checked Oct 29, 2026help.shodan.io(opens source in a new tab)
    Starting price
    $49 one-time (Membership)
    Checked Nov 1, 2026account.shodan.io(opens source in a new tab)
    Freelancer plan
    $69 a month
    Checked Nov 1, 2026account.shodan.io(opens source in a new tab)
    Small Business plan
    $359 a month
    Checked Nov 1, 2026account.shodan.io(opens source in a new tab)
    Corporate plan
    $1,099 a month
    Checked Nov 1, 2026account.shodan.io(opens source in a new tab)

The best Censys alternative for…

The highest-ranked app in this list for each need.

Shodan logo

Best Censys alternative for most people

Shodan

Simpler, long-established device search with an easy CLI and lower entry cost.

Shodan logo

Best Censys alternative for a free plan you can upgrade

Shodan

Simpler, long-established device search with an easy CLI and lower entry cost.

Shodan logo

Best Censys alternative for working in the browser

Shodan

Simpler, long-established device search with an easy CLI and lower entry cost.

Censys alternatives: common questions

What is the best alternative to Censys?

Shodan ranks first right now. Simpler, long-established device search with an easy CLI and lower entry cost.

Is there a free alternative to Censys?

Yes. Shodan (free plan + paid) has a free option. Check each app's verified facts for current plan limits.

Is there an open-source alternative to Censys?

None of the 1 alternatives in this list is open source.

Why do people switch from Censys?

The complaints we hear most: free account covers only basic visibility into standard ports; credit-based billing makes costs harder to predict; larger plans go through sales demos.

How is this list ranked?

Every app is scored with the same published formula: how directly it replaces Censys, reviews (weighted by verification), visits from AppBreakup, how recently its facts were checked against its own website, and reader votes.