Dev tools · alternatives · 2026

24 alternatives to SpatiumDDI

Open Source DDI Solution (DHCP, DNS, IPAM)

Below are 24 products that do a similar job, ranked by how close each is in meaning and then by launch-day votes.

1. 1
   OpenAPI DevTools – Chrome extension that generates an API spec▲811

   Effortlessly discover API behaviour with a Chrome extension that automatically generates OpenAPI specifications in real time for any app or website.

   2023 · github.com · its alternatives →

2. 2
   ManageEngine DDI Central▲3

   Unified DNS, DHCP and IP address manager

   2024 · manageengine.com · its alternatives →

3. 3
   Free IP API▲83

   Free, Fast and Reliable IP Geolocation, Countries, Timezones and Phone codes API for commercial and non-commercial usage, Available in JSON and XML formats.

   2023 · freeipapi.com · its alternatives →

4. 4
   Tiny, fast, and free API to geolocate IP addresses▲144

   Lightweight API service to get geolocation data from IP addresses. - risk3sixty/geoapi

   2019 · github.com · its alternatives →

5. 5
   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 · its alternatives →

6. 6
   GPT Router▲211

   Avoid OpenAI downtimes - one API for 30+ LLMs

   2023 · github.com · its alternatives →

7. 7
   OpenUI▲322

   Thesys just open-sourced their generative UI rendering engine. Interesting timing given where Google a2ui and Vercel's json-render are headed. The difference worth noting: a2ui and json-render both treat JSONL as the contract between the LLM and the renderer. Thesys is betting that's the wrong primitive. Their engine uses a code-like syntax (OpenUI Lang) instead — LLM writes it, renderer executes it. The argument is that LLMs are fundamentally better at generating code than generating structured data, so you get cleaner output and ~67% fewer tokens. The broader vision seems to be a…

   Mar 2026 · openui.com · its alternatives →

8. 8AS
   A simple-to-update dynamic DNS service▲30

   2014 · dhcp.io · its alternatives →

9. 9ZI
   zzzz.io, a free DynDNS replacement I created on the weekend▲156

   2014 · zzzz.io · its alternatives →

10. 10
    I built an OSS alternative to Azure OpenAI services▲200

    Hey HN, I am proud to show you guys that I have built an open source alternative to Azure OpenAI services. Azure OpenAI services was born out of companies needing enhanced security and access control for using different GPT models. I want to build an OSS version of Azure OpenAI services that people could self host in their own infrastructure. "How can I track LLM spend per API key?" "Can I create a development OpenAI API key with limited access for Bob?" "Can I see my LLM spend breakdown by models and endpoints?" "Can I create 100 OpenAI API keys that my students could use in a classroom…

    2023 · github.com · its alternatives →

11. 11
    REST Alternative to GraphQL and tRPC▲123

    2023 · openapistack.co · its alternatives →

12. 12
    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 · its alternatives →

13. 13
    LinkApi▲65

    API management + iPaaS in a dev-friendly experience.

    2020 · its alternatives →

14. 14
    Simple Dynamic DNS Using the Cloudflare API▲19

    Simple, free dynamic DNS via Cloudflare. Contribute to lyoshenka/cloudflare-ddns development by creating an account on GitHub.

    2015 · github.com · its alternatives →

15. 15
    Free and easy geoip API thanks to Cloudflare and Heroku▲47

    Free and easy geoip API thanks to Cloudflare and Heroku. - jlxw/geoip

    2016 · github.com · its alternatives →

16. 16
    tldx▲109

    Fast CLI to bulk-check domains via RDAP & MCP

    May 2026 · github.com · its alternatives →

17. 17
    VPNHome – 1-click, self-hosted OpenVPN deployment and management app▲85

    1-click, self-hosted deployment of OpenVPN with DNS ad blocking sinkhole - ezaquarii/vpn-at-home

    2018 · github.com · its alternatives →

18. 18
    I just made an All-In-One IP Toolbox form builder open-sourced▲14

    The best IP Toolbox. Check your IP address & geolocation, test IP for WebRTC and DNS IP leaks, run an IP quality check, browser fingerprint check, website availability check, network speed test, global latency test, MTR test, Whois search, and more. - jason5ng32/MyIP

    2024 · github.com · its alternatives →

19. 19DD
    Dnsyo – DNS propagation checker▲56

    2013 · samarudge.github.io · its alternatives →

20. 20
    FluxRadar▲7

    Ping, DNS, IP & network diagnostics in one place

    Jul 2026 · its alternatives →

21. 21
    IP-Api.io – Geolocation by IP▲36

    Fast JSON API for IPv4/IPv6 geolocation, ASN/ISP data, and VPN/proxy detection. Start in minutes.

    2019 · ip-api.io · its alternatives →

22. 22
    Otari: your open-source LLM control plane▲20

    Open-source, OpenAI-compatible LLM gateway you run yourself. One endpoint for 40+ providers, with virtual keys, budgets, and usage tracking. - mozilla-ai/otari

    Jul 2026 · github.com · its alternatives →

23. 23
    Ddosify – High-performance load testing tool, written in Golang▲11

    Anteon (formerly Ddosify): eBPF-based Kubernetes Monitoring and Performance Testing - getanteon/anteon

    2021 · github.com · its alternatives →

24. 24
    ipapi.co▲6

    IP address location API

    2016 · ipapi.co · its alternatives →

Ranked by how close each launch is in meaning, then by votes. Prices were read from each product’s own site when checked and can change. Refine with your own description →