Dev tools · alternatives · 2026

24 alternatives to Codynet

DNS, RDAP, HTTP, TLS, and subnet investigations — deterministic, free, with transparent privacy limits.

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
   DN$ – an innovative, ad-supported DNS resolver▲294

   Tired of companies snooping through your DNS traffic? Don't you wish you could get advertisements with your DNS records? Today we're introducing the innovative, privacy-focused, ad-supported DNS resolver - DN$! Traditional DNS resolvers provided by your internet service provider, cloudflare, or google could be tracking your internet activity and selling it to third-party data vendors. We at DN$ want to fix that and cut out these nefarious actors (until we've amassed a critical number of users to exploit). In order to support such a radically new business model, our service needs to serve…

   2024 · github.com · its alternatives →

2. 2AS
   A search engine for your personal network of high-quality websites▲266

   Hey all, Last time when we were on HackerNews [1], we received a lot of feedback, and we incorporated most of it. - We have changed our name from grep.help to usegrasp.com - A privacy policy page - Bulk import - Pricing page We are happy to introduce a new feature: a personalized answer search engine that provides direct citations to the content on the page. Demo: https://usegrasp.com/search?q=is+starship+fully+reusable%3F 1 - https://news.ycombinator.com/item?id=35510949

   2023 · usegrasp.com · its alternatives →

3. 3
   Your Domain Bot▲295

   Telegram bot for domain monitoring

   2023 · yourdomainbot.online · its alternatives →

4. 4
   "q", a DNS query tool with support for UDP, TCP, DoT, DoH, DoQ and ODoH▲140

   A tiny command line DNS client with support for UDP, TCP, DoT, DoH, DoQ and ODoH. - natesales/q

   2022 · github.com · its alternatives →

5. 5
   Hire Cody, Your DPO as Code▲9

   Privacy Regulations in your code, no legal knowledge needed

   2022 · its alternatives →

6. 6KE
   KittenDNS – Easy to setup, rule engine, LetsEncrypt compatible▲107

   My goal was to create a DNS server as simple as the LDAP server I've been contributing to (glauth) and here it is: https://github.com/fusion/kittendns A few things to know about it: - It is easy to configure using a Toml file - I am using it to bail my coredns/etcd instances when under attack - (yes, it also works as a service location server) - It comes with a simple, plain English, rule engine that doesn't do much at this point - It can be used with LetsEncrypt. I use it to retrieve certificates for my home servers. - RFC: all the nice ones :) Anyway, feedback is…

   2022 · its alternatives →

7. 7
   tldx▲109

   Fast CLI to bulk-check domains via RDAP & MCP

   May 2026 · github.com · its alternatives →

8. 8
   dingo - a Google DNS-over-HTTPS caching proxy in Go▲75

   A DNS client in Go that supports Google DNS over HTTPS - pforemski/dingo

   2016 · github.com · its alternatives →

9. 9DD
   Dnsyo – DNS propagation checker▲56

   2013 · samarudge.github.io · its alternatives →

10. 10
    HTTPS-DNS - Rust-based minimal DNS-over-HTTPS (DoH) client▲14

    2022 · github.com · its alternatives →

11. 11PD
    Privacy DNS – free, encrypted, no-logs, DoH, DoT, DoQ, DNSProxy▲14

    2024 · privacy-dns.pw · its alternatives →

12. 12TN
    TLD.ninja – Simple top-level domain checker (weekend project)▲15

    2016 · tld.ninja · its alternatives →

13. 13
    Cap'n-rs – Rust implementation of Cloudflare's Cap'n Web protocol▲52

    Last week Cloudflare released Cap'n Web [1], a schema-free capability-based RPC protocol. I built capn-rs this week - a Rust implementation with full wire protocol compatibility. Links: GitHub: https://github.com/currentspace/capn-rs Crates: https://crates.io/crates/capnweb-server API docs: https://docs.rs/capnweb-server What's working: Wire compatibility verified via integration tests against TypeScript reference Multi-transport: HTTP batch, WebSocket, WebTransport (HTTP/3) Complete IL (intermediate language) expression evaluator…

    2025 · github.com · its alternatives →

14. 14
    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 →

15. 15
    TokenDNS▲7

    developer friendly dns service, api first

    2017 · its alternatives →

16. 16
    Dns Lookup — CbrTool▲3

    Lookup DNS Records for Any Domain Instantly

    Jun 2026 · cbrtool.com · its alternatives →

17. 17
    Subscan - CLI tool for subdomain recon▲14

    Subscan is a Go-based CLI tool that helps bug bounty hunters and pentesters with subdomain discovery (passive and brute-force), scoring (HTTP/TLS/CNAME), and misconfig probes (takeovers, open .envs, S3 buckets, etc). Output formats include JSON/CSV/HTML/Markdown. GitHub: https://github.com/omerimzali/subscan Looking for feedback!

    2025 · github.com · its alternatives →

18. 18
    Fast subdomain enumerator written in Rust▲23

    Hello! I'm learning Rust and also information security, so what better way to learn than to put a tool together practicing both skills? I've tried to use a couple of different tools for subdomain enumeration (part of the Discovery-party when it comes to penetration testing), but none of them were very fast, even if the DNS resolver I pointed them towards is, so I wrote my own tool that leverages concurrency to check a lot of subdomains, fast! It's written in Rust, main parts being using Tokio and async_channels, and I think it works good enough for a first release. I wanted to get recursive…

    2022 · github.com · its alternatives →

19. 19
    Real-time security risks detection for any website or server▲22

    Online automated vulnerability scanner to secure firewalls, servers, web applications, and apis. Try 14 days for free.

    2020 · hostedscan.com · its alternatives →

20. 20AB
    A .bit gateway for resolving ipfs:// to https://▲17

    bit.site dynamically captures all requests to *.bit.site, automatically resolving the IPFS/IPNS/Skynet content hashes for the corresponding .bit account records. It returns the relevant static content via HTTPS, enabling users to access decentralized networks with zero configuration on modern browsers. At the same time, we provide global CDN acceleration, striving to enhance the availability of decentralized content.

    2023 · bit.site · its alternatives →

21. 21
    Simple Subnet Network Tool▲26

    Free subnet calculator for IPv4 and IPv6. Get the network address, broadcast, mask, wildcard and usable host range instantly. CIDR cheat sheet included.

    2016 · subnet.im · its alternatives →

22. 22
    DNS Robot ▲1

    53 free DNS, network & security tools — no signup needed

    Feb 2026 · dnsrobot.net · its alternatives →

23. 23
    DNS Digger▲13

    Blazing fast DNS lookup, WHOIS & record check in one tool

    2025 · dnsdigger.xyz · its alternatives →

24. 24
    DomainDetails.com - Free & Private WHOIS▲26

    Free & Private domain research - right in your browser

    Dec 2025 · domaindetails.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 →