nowfound

Dev tools · alternatives · 2026

24 alternatives to ToolWeb.io

All-in-one DNS, IP and email diagnostic & monitoring toolkit

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

    Yes, it's open source: https://github.com/lissy93/web-check :) Why I'm building this? There are a lot of tools out there for discovering meta and security data relating to a website, IP or server. But currently, there isn't anything that does everything, all in one place and without a paywall/ user sign up. It's still a WIP, and I'm working on a new version, with some more comprehensive checks, so any feedback would be much appreciated :)

    2024 · v1.web-check.xyz · its alternatives →

  2. 2

    Free AI DNS record diagnostics tool

    2023 · its alternatives →

  3. 3

    Instant global network diagnostics for ISPs and engineers.

    Nov 2025 · isp.tools · its alternatives →

  4. 4

    Stop your SEO from breaking

    2020 · authenticatornft.io · its alternatives →

  5. 5

    Inspect webhook payloads with automatic type generation

    2022 · typedwebhook.tools · its alternatives →

  6. 6

    DNS lookup & propagation checker

    2025 · dnsfinder.org · its alternatives →

  7. 7

    Identifying the DNS server used to fulfill an HTTP request

    2013 · 5f5.org · its alternatives →

  8. 8DD

    2013 · samarudge.github.io · its alternatives →

  9. 9

    Test or debug your connection without ads or tracking.

    2025 · apps.apple.com · its alternatives →

  10. 10

    41 free tools for website owners

    Jun 2026 · tools.hostdroplet.com · its alternatives →

  11. 11

    Online free Web Tools for web developers

    2022 · its alternatives →

  12. 12

    Free network diagnostic tools for it professionals

    2025 · tracewarrior.com · its alternatives →

  13. 13

    Your All-in-One DNS & Domain Diagnostic Toolkit

    Aug 2026 · dnsscouter.xyz · its alternatives →

  14. 14

    Free diagnostic tools for DNS, email, and network security.

    Apr 2026 · its alternatives →

  15. 15

    HTTP Toolkit is a suite of open-source & cross-platform tools for developing, debugging & testing anything using HTTP. It lets you intercept HTTP(S) with one...

    2019 · httptoolkit.tech · its alternatives →

  16. 16

    Detect domain security issues before they hurt your business

    May 2026 · domainscan.tools · its alternatives →

  17. 17

    For the past months we've been working on making our open source tool Internet.nl easier to deploy and develop on. Last week we release version 1.8.0 (https://en.internet.nl/article/release-1.8/) which includes these changes. Tests include: IPv6, DNSSEC, HTTPS/TLS, various security options like XSS, CSP headers, security.txt, RPKI, DMARC, DKIM, SPF, STARTTLS, DANE for web/email, and a browser connection test for IPv6 and DNSSEC. (see: https://en.internet.nl/faqs/) Using Docker & Docker Compose it is now trivial to deploy your own…

    2023 · github.com · its alternatives →

  18. 18

    Monitor DNS queries by host processes using eBPF! Contribute to furkanonder/DnsTrace development by creating an account on GitHub.

    2024 · github.com · its alternatives →

  19. 19
    DNSFly▲3

    Free DNS, SSL & Domain Toolkit

    Feb 2026 · dnsfly.net · its alternatives →

  20. 20

    9 free tools to keep your email out of spam

    Aug 2026 · truelist.io · its alternatives →

  21. 21
    IPMYP▲2

    IP, DNS & network diagnostics and monitoring for developers

    Jul 2026 · ipmyp.com · its alternatives →

  22. 22

    Save time with free network, DNS, security & infosec tools..

    2022 · its alternatives →

  23. 23

    A tool to monitor website status, domain expiry, etc

    2025 · webonitor.xyz · its alternatives →

  24. 24

    Every tool a developer needs, all in one place

    2025 · toolkit-hub.gotodev.ma · its alternatives →

Also compare

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 →