Life & fun · alternatives · 2026

24 alternatives to DNS Rebind Toolkit

A front-end JavaScript toolkit for creating DNS rebinding attacks. - brannondorsey/dns-rebind-toolkit

Below are 24 products that do a similar job, ranked by how close each is in meaning and then by launch-day votes. Prices are shown for the 1 we have checked on their own sites, 1 of them free or with a free tier. DNS Rebind Toolkit launched in 2018; newer entries below may have overtaken it.

1. 1
   DNS rebinding protection for Express.js▲30

   Express.js middleware for "Host" and "Referer" header validation to protect against DNS rebinding attacks. - brannondorsey/host-validation

   2018 · github.com · its alternatives →

2. 2
   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 →

3. 3RD
   Recursive DNS Server Fingerprint▲120

   2017 · recdnsfp.github.io · its alternatives →

4. 4
   I built a DNS resolver from scratch in Rust – no DNS libraries▲115

   I built a DNS resolver that lets me use https://frontend.numa instead of localhost:5173 — auto-generated TLS certs, WebSocket passthrough, path routing. No mkcert, no nginx, no /etc/hosts.

   Apr 2026 · github.com · its alternatives →

5. 5
   tunnelto.dev▲186

   Expose localhost to the internet with a public URL

   2020 · tunnelto.dev · its alternatives →

6. 6WD
   Which DNS servers are you pointing to?▲283

   2020 · which.nameserve.rs · its alternatives →

7. 7
   Get your local and public IP addresses in JavaScript▲239

   Demo: https://diafygi.github.io/webrtc-ips/. Contribute to diafygi/webrtc-ips development by creating an account on GitHub.

   2015 · github.com · its alternatives →

8. 8
   I built a guided Build your own DNS Server challenge▲57

   Hey everyone. It's Sherub here, author of the Build your own DNS Server challenge on CodeCrafters. Currently it’s available in Rust, Go, and Python and is free while in beta. https://codecrafters.io/dns-server I've kept the challenge accessible but still challenging for an intermediate developer. This challenge, like others from CodeCrafters, is self-paced. You can use any tools you prefer (terminal, editor, etc.) to build the project. At the end of the challenge, you will have created a DNS forwarding server. The server can create and read DNS packets and respond to DNS…

   2023 · app.codecrafters.io · its alternatives →

9. 9
   NsLookup▲72

   A simple and powerful tool for querying DNS records

   2020 · nslookup.io · its alternatives →

10. 10
    Tunnelto.dev – expose localhost with a public URL (built in Rust)▲100

    Expose your local web server to the internet with a public URL

    2020 · tunnelto.dev · its alternatives →

11. 11
    Local development with .local domains and HTTPSfree tier, from $8/mo▲84

    Hi HN! I'm Jarek, and I've built this tool that allows publishing .local domains on the local network using mDNS. It also has a reverse proxy that handles HTTPS termination and port forwarding. I'm working on adding more features, like an index page with all available domains or allowing proxy redirects, so you could redirect from HTTP to HTTPS. Let me know if you have any questions or feedback!

    2023 · localcan.com · its alternatives →

12. 12
    Reshift Security▲123

    Find vulnerabilities in your JavaScript code for free

    2021 · socolivezb.tv · its alternatives →

13. 13
    Chevrotain – Fault-Tolerant JavaScript Parsing DSL▲42

    Parser Building Toolkit for JavaScript. Contribute to Chevrotain/chevrotain development by creating an account on GitHub.

    2016 · github.com · its alternatives →

14. 14
    A site to look up DNS records▲82

    DNS record lookups just as you like 'em

    2017 · dnsrecords.io · its alternatives →

15. 15
    A simple, highly commented, rootkit which attacks GCC and Python▲94

    2014 · github.com · its alternatives →

16. 16
    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 →

17. 17
    MassDNS – A high-performance DNS stub resolver in C▲35

    A high-performance DNS stub resolver for bulk lookups and reconnaissance (subdomain enumeration) - blechschmidt/massdns

    2016 · github.com · its alternatives →

18. 18
    DNS Diagnosis▲86

    Free AI DNS record diagnostics tool

    2023 · its alternatives →

19. 19
    Deno Subhosting▲82

    Allow developers to extend your product with custom code

    2023 · deno.com · its alternatives →

20. 20DD
    Dnsyo – DNS propagation checker▲56

    2013 · samarudge.github.io · its alternatives →

21. 21
    DNS Rewrite Proxy▲14

    2020 · github.com · its alternatives →

22. 22
    Identifying the DNS server used to fulfill a HTTP request▲17

    Identifying the DNS server used to fulfill an HTTP request

    2013 · 5f5.org · its alternatives →

23. 23
    Bless your JavaScript code▲19

    A Node.js package for invoking divine blessings for one's Javascript code. - rudimk/dua.js

    2017 · github.com · its alternatives →

24. 24
    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 →

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 →