AppBreakup
Submit an app

LeakIX alternatives: 6 apps ranked by verified data

Facts checked Nov 8, 2026AppBreakup editorialHow we rankAll internet exposure search engines

Top picks

  • Shodan logo

    Best overall

    Shodan

    Starting price: $49 one-time (Membership)

  • Censys logo

    Best free option

    Censys

    Free plan + paid

Common reasons people leave LeakIX: free results are delayed by 15 days, and API limited to 1 request per second on all plans. We ranked 6 alternatives by how directly each one replaces LeakIX, then by reviews, real visits and how recently each app's facts were checked against its own website. Shodan currently ranks first.

Quick comparison

#AppPricingVerified priceOpen sourcePlatformsVerified factsScore
1Shodan logoShodanFree plan + paid$49 one-time (Membership)NoWeb8 of 868.8
2Censys logoCensysFree plan + paid—NoWeb3 of 364.8
3Criminal IP logoCriminal IPFree plan + paid—NoWeb5 of 561.8
4ZoomEye logoZoomEyeFree plan + paid—NoWeb4 of 459.4
5FoFOFAFree plan + paid$25 a month, Personal plan (discounted from $49)NoWeb9 of 957.5
6GreyNoise logoGreyNoiseFree plan + paid—NoWeb4 of 449.0
  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

    68.8

    score / 100

    Why switch from LeakIX

    Much larger index of devices and banners, with a one-time membership that suits broad research.

    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 ×0.15100
    Votes ×0.150

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

    Is Shodan a good LeakIX alternative?

    Verified facts

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

    2. Censys

    Best for: Security teams that need Internet-wide host and certificate data plus attack surface management

    Free plan + paidWeb

    64.8

    score / 100

    Why switch from LeakIX

    Deeper certificate and host data and a free research tier for wider attack surface work.

    Pros

    • Broad data covering hosts, ports, certificates, websites and DNS
    • Attack surface management and threat hunting built on the same data
    • API access included on all plans

    Cons

    • Free account covers only basic visibility into standard ports
    • Credit-based billing makes costs harder to predict
    • Larger plans go through sales demos
    Visit Censys Details and reviews
    How this score is calculated
    Editorial fit ×0.387
    Reviews ×0.363
    Clicks (90 days) ×0.150
    Freshness ×0.15100
    Votes ×0.150

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

    Is Censys a good LeakIX alternative?

    Verified facts

    3 of 3 verified
    Free plan
    Yes (basic visibility)
    Checked Nov 8, 2026censys.com(opens source in a new tab)
    API
    Included on all plans
    Checked Nov 8, 2026censys.com(opens source in a new tab)
    Data covered
    IPs, ports, certificates, websites, DNS
    Checked Nov 8, 2026censys.com(opens source in a new tab)
  3. Criminal IP logo

    3. Criminal IP

    Best for: Threat hunters and SOC teams who want internet scan data with IP and domain risk scores

    Free plan + paidWeb

    61.8

    score / 100

    Why switch from LeakIX

    Adds risk scores, VPN and Tor detection and STIX or MISP threat feeds on top of scan data.

    Pros

    • Risk scores for IPs and domains alongside raw scan results
    • Detects VPN, proxy and Tor usage
    • Threat feeds in JSON, TXT, STIX 2.1 and MISP formats
    • Free account available for basic lookups

    Cons

    • No public pricing on the main website
    • Search engine lives on a separate site from the product pages
    • Enterprise purchases and training go through sales contracts
    Visit Criminal IP Details and reviews
    How this score is calculated
    Editorial fit ×0.377
    Reviews ×0.363
    Clicks (90 days) ×0.150
    Freshness ×0.15100
    Votes ×0.150

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

    Is Criminal IP a good LeakIX alternative?

    Verified facts

    5 of 5 verified
    Owner
    AI Spera Inc. (Seoul)
    Checked Nov 8, 2026criminalip.io(opens source in a new tab)
    Scan cycle
    About 3 days for all public IPv4
    Checked Nov 8, 2026criminalip.io(opens source in a new tab)
    Feed formats
    JSON, TXT, STIX 2.1, MISP
    Checked Nov 8, 2026criminalip.io(opens source in a new tab)
    Free plan
    Yes (free membership)
    Checked Nov 8, 2026criminalip.io(opens source in a new tab)
    Refund window
    14 days
    Checked Nov 8, 2026criminalip.io(opens source in a new tab)
  4. ZoomEye logo

    4. ZoomEye

    Best for: Security researchers and red teams who want a Shodan-style index with strong coverage of Asian networks.

    Free plan + paidWeb

    59.4

    score / 100

    Why switch from LeakIX

    Broad asset search with a free tier and fingerprinting of web apps and devices.

    Pros

    • Covers devices, services and web components across IPv4, IPv6 and domains
    • Official Python library and CLI for scripted searches
    • MCP server lets AI assistants query the index directly
    • Free registered tier for occasional searches

    Cons

    • Free allowance is small; bulk queries and exports need paid credits
    • Some documentation and support content is Chinese-first
    • Main site renders with JavaScript, so it's awkward without a modern browser
    Visit ZoomEye Details and reviews
    How this score is calculated
    Editorial fit ×0.369
    Reviews ×0.363
    Clicks (90 days) ×0.150
    Freshness ×0.15100
    Votes ×0.150

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

    Is ZoomEye a good LeakIX alternative?

    Verified facts

    4 of 4 verified
    Owner
    Knownsec
    Checked Nov 6, 2026github.com(opens source in a new tab)
    CLI
    Official Python library and CLI
    Checked Nov 6, 2026github.com(opens source in a new tab)
    CLI license
    GPL-2.0
    Checked Nov 6, 2026github.com(opens source in a new tab)
    MCP server
    Yes
    Checked Nov 6, 2026github.com(opens source in a new tab)
  5. Fo

    5. FOFA

    Best for: Pentesters and bug bounty hunters who need fingerprint-based asset discovery with an affordable API.

    Free plan + paidWeb

    57.5

    score / 100

    Why switch from LeakIX

    Large fingerprint rule set for finding specific web products and frameworks across the internet.

    Pros

    • Large fingerprint rule library identifies specific products and versions
    • Free registered tier with monthly query credits
    • Query API with host and statistics aggregation on paid plans
    • Pay-as-you-go F Points for occasional bulk downloads

    Cons

    • Free tier is for non-commercial use only
    • Some pages, including company information, are only in Chinese
    • Most API fields and syntaxes are locked behind higher plans
    Visit FOFA Details and reviews
    How this score is calculated
    Editorial fit ×0.363
    Reviews ×0.363
    Clicks (90 days) ×0.150
    Freshness ×0.15100
    Votes ×0.150

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

    Is FOFA a good LeakIX alternative?

    Verified facts

    9 of 9 verified
    Free plan
    Yes, 300 query credits/month, non-commercial
    Checked Nov 8, 2026en.fofa.info(opens source in a new tab)
    Free plan use
    Non-commercial only
    Checked Nov 8, 2026en.fofa.info(opens source in a new tab)
    API
    Query API on paid plans
    Checked Nov 8, 2026en.fofa.info(opens source in a new tab)
    Pay-as-you-go
    F Points credits
    Checked Nov 8, 2026en.fofa.info(opens source in a new tab)
    Owner
    Hunan Huashun Xin'an Technology
    Checked Nov 8, 2026en.fofa.info(opens source in a new tab)
    Starting price
    $25 a month, Personal plan (discounted from $49)
    Checked Nov 8, 2026en.fofa.info(opens source in a new tab)
    Professional plan
    $119 a month (discounted from $149)
    Checked Nov 8, 2026en.fofa.info(opens source in a new tab)
    Business plan
    $1,199 a month (discounted from $1,499)
    Checked Nov 8, 2026en.fofa.info(opens source in a new tab)
    F Points
    10,000 F Points for $6
    Checked Nov 8, 2026en.fofa.info(opens source in a new tab)
  6. GreyNoise logo

    6. GreyNoise

    Best for: SOC teams and security researchers who want to filter scanner noise and spot active exploitation

    Free plan + paidWeb

    49.0

    score / 100

    Why switch from LeakIX

    Tells you which IPs are mass-scanning the internet, useful for triaging alerts rather than finding leaks.

    Pros

    • Separates harmless scanners from real attack traffic
    • Live data on which vulnerabilities are being exploited
    • Free community tier for basic IP lookups
    • Paid tiers include SIEM, SOAR and firewall integrations

    Cons

    • Paid pricing is not published
    • Free tier has a low weekly search limit
    • Only sees traffic that reaches its sensors, not full exposure data
    Visit GreyNoise Details and reviews
    How this score is calculated
    Editorial fit ×0.334
    Reviews ×0.363
    Clicks (90 days) ×0.150
    Freshness ×0.15100
    Votes ×0.150

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

    Is GreyNoise a good LeakIX alternative?

    Verified facts

    4 of 4 verified
    Free plan
    Community tier for IP lookups
    Checked Nov 8, 2026greynoise.io(opens source in a new tab)
    Pricing structure
    Platform tier plus modules
    Checked Nov 8, 2026greynoise.io(opens source in a new tab)
    Integrations
    SIEM, SOAR, TIP, firewall
    Checked Nov 8, 2026greynoise.io(opens source in a new tab)
    Founder
    Andrew Morris
    Checked Nov 8, 2026greynoise.io(opens source in a new tab)

The best LeakIX alternative for…

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

Shodan logo

Best LeakIX alternative for most people

Shodan

Much larger index of devices and banners, with a one-time membership that suits broad research.

Censys logo

Best LeakIX alternative for a free plan you can upgrade

Censys

Deeper certificate and host data and a free research tier for wider attack surface work.

Criminal IP logo

Best LeakIX alternative for working in the browser

Criminal IP

Adds risk scores, VPN and Tor detection and STIX or MISP threat feeds on top of scan data.

LeakIX alternatives: common questions

What is the best alternative to LeakIX?

Shodan ranks first right now. Much larger index of devices and banners, with a one-time membership that suits broad research. Censys and Criminal IP follow it in our ranking.

LeakIX vs Shodan: what's the difference?

Both LeakIX and Shodan are free with paid plans. Verified prices: LeakIX €25/month (Bounty Hunter), Shodan $49 one-time (Membership). Both run on Web.

Is LeakIX free?

LeakIX is free with paid plans. Free plan: €0/month, 3,000 API requests; Starting price: €25/month (Bounty Hunter). Checked on LeakIX's own site, November 2026.

How much do LeakIX alternatives cost?

Verified prices for the top-ranked LeakIX alternatives: Shodan, $49 one-time (Membership); FOFA, $25 a month, Personal plan (discounted from $49). Each price was checked on the app's own site; see each card below for the date and source.

Is there a free alternative to LeakIX?

Yes. Shodan (free plan + paid), Censys (free plan + paid), Criminal IP (free plan + paid) and ZoomEye (free plan + paid) have a free option. Check each app's verified facts for current plan limits.

Is there an open-source alternative to LeakIX?

None of the 6 alternatives in this list is open source.

Why do people switch from LeakIX?

The complaints we hear most: free results are delayed by 15 days; API limited to 1 request per second on all plans; commercial use requires the Enterprise plan.

How is this list ranked?

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