Alternatives

Products that do what WorldIP.io does

Owner, ASN, GEO, PTR, BGP & more for every IPv4 address

1. 1AF
   A free curl API for IP data (we scan the IPv4 space in <24h)▲10

   The curl API for WorldIP is now live and completely free to use. You can hit it right from your terminal: curl worldip.io — returns information about your requesting IP. curl worldip.io&#x2F;8.8.8.8 — returns details on any specific IP. The main differentiator here is that we aren't just wrapping another provider's API and reselling their data. We built and run our own global infrastructure capable of scanning the entire IPv4 space in about a day. Happy to answer any questions about the scanning infrastructure or the stack!

   Jul 2026 · worldip.io

2. 2IG
   IP Guide – Info on IP addresses, Networks, and ASNs▲363

   Hey all, wanted to share my recent weekend hack project. I wanted to improve upon the existing space for looking up information about IP addresses and ASNs. The backend is written in Rust and pulls BGP data every 8 hours from the RIPE RIS project to build up a routing table and also adds geolocation information. The frontend is using React and Tailwind. Would love any feedback or suggestions on what to improve.

   2023 · ip.guide

3. 3
   Pointpin▲82

   Simple & reliable IP geolocation API.

   2014

4. 4
   IPLocate▲95

   1,500 free IP address lookups per day. One, quick request.

   2018

5. 5TF
   Tiny, fast, and free API to geolocate IP addresses▲144

   2019 · github.com

6. 6AS
   A simple IP address API▲241

   2014 · ipinfo.io

7. 7IG
   IP Geolocation and Threat Data API▲79

   2018 · ipdata.co

8. 8II
   IPLocate.io – a free IP geolocation service▲20

   2017 · iplocate.io

9. 9CO
   Comparison of IP Geolocation services and databases▲6

   2020 · resolve.rs

10. 10IA
    IP-Api.io – Geolocation by IP▲36

    2019 · ip-api.io

11. 11FI
    Free IP to Country and ASN Downloads from Ipinfo.io▲24

    Free IP to Country and ASN Data downloads: - MMDB, CSV and JSON format - Full accuracy (not degraded quality compared to our paid downloads) - IPv4 and IPv6 data - A single file that includes both country and ASN details - Daily updated - CC Attribution license (no usage restrictions, only requirement is a link back to ipinfo.io) Here's an example of querying the MMDB file using our mmdbctl tool: $ echo "1.1.1.1" | mmdbctl read country_asn.mmdb | jq . { "as_domain": "cloudflare.com", "as_name": "Cloudflare, Inc.", "asn": "AS13335", "continent": "NA", "continent_name": "North America",…

    2023

12. 12IA
    IPalyzer – Analyze any IP for location, RDNS, blacklisting▲123

    2016 · ipalyzer.com

13. 13RA
    REST API for Global Address Verification▲80

    2013 · lob.com

14. 14WI
    Written in Rust – Self hosted and fast GeoIP service with auto updates▲20

    2024 · github.com

15. 15OD
    Open database tracking 77K public DNS servers every 10 minutes▲7

    Hey HN! We built DNS Directory (https:&#x2F;&#x2F;dnsdirectory.com), a free, searchable database of public DNS servers with live monitoring every 10 minutes. We needed to find an up-to-date list of DNS servers used by carriers around the world for a proxy fingerprinting &#x2F; web-scraping project but we were shocked to find that it didn’t exist so we built it ourselves in an internal Hackathon We’re adding more features but so far we: Test 77K+ servers every ~10 minutes Allow filtering by uptime, location, security features (ad blocking, malware protection, DNSSEC) Show info on IPv6…

    Dec 2025 · dnsdirectory.com

16. 16
    Spott▲93

    Simple API to search geographical places.

    2019

17. 17SI
    Smartip.io – Reliable and Accurate IP Geolocation and Threat API▲9

    2019 · smartip.io

18. 18IM
    I Made a Ultra-Low Latency IP Geolocation API in Go▲15

    Hey! I'm a solo developer having fun learning Go. I have a side hustle and wanted to implement currency localization. I could use existing IP databases, but hosting on serverless is slow. So I built my own. I was surprised how fun it can be to use Go, and it's fast. Thankfully, Go's speed makes up for my dodgy code. Anyway, I'd love to get some feedback on my website&#x2F;API. After a few weeks of testing and losing money on ads, I'm confident it's very reliable. This isn't a promo. It's basicly free (30k lookups&#x2F;month), so there's no need to pay. Any advice or tips on how to grow and…

    2024 · ipflare.io

19. 19IP
    Improved passive TCP/IP geolocation▲78

    2016 · sheerun.gitlab.io

20. 20BI
    Backname.io – every IP address gets its own domain▲46

    I was setting up tests involving DNS resolution recently, where something like 127.0.0.1.service.foo would have been tremendously useful. Back in the day, I'd have used xip.io - but sadly that service died. Well, every excuse is a good one when it comes to writing a DNS server! Backname.io joins nip.io and sslip.io in the wildcard DNS game.

    2023 · backname.io

21. 21
    ProdIPData▲2

    Free monthly IPv4 geolocation data in CSV and Parquet

    Apr 2026 · prodipdata.com

22. 22SH
    Self-hosted free geoip service▲5

    Hi HN, I wanted to share this simple python app that you can host using App engine and get a free geoip service. It's pretty easy to limit it to the free quota and run without costs. You can't query for a specific IP address but it becomes super useful if you can make that request from the user's side (browser, app, etc). It only has access to lat, long, city, country, ip address but I find those to be the most useful data points. Hope this helps.

    2024 · github.com

23. 23IL
    IP Lookup▲72

    2013 · iplook.herokuapp.com

24. 24DA
    Dug, A global DNS propagation checker on your CLI▲33

    2021 · github.com

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