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

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 →
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ISP.Tools▲15Instant global network diagnostics for ISPs and engineers.
Nov 2025 · isp.tools · its alternatives →
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Inspect webhook payloads with automatic type generation
2022 · typedwebhook.tools · its alternatives →
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Identifying the DNS server used to fulfill an HTTP request
2013 · 5f5.org · its alternatives →
- 8DD
2013 · samarudge.github.io · its alternatives →
- 9

Test or debug your connection without ads or tracking.
2025 · apps.apple.com · its alternatives →
- 10

41 free tools for website owners
Jun 2026 · tools.hostdroplet.com · its alternatives →
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TraceWarrior▲14Free network diagnostic tools for it professionals
2025 · tracewarrior.com · its alternatives →
- 13

Your All-in-One DNS & Domain Diagnostic Toolkit
Aug 2026 · dnsscouter.xyz · its alternatives →
- 14

Free diagnostic tools for DNS, email, and network security.
Apr 2026 · its alternatives →
- 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

Detect domain security issues before they hurt your business
May 2026 · domainscan.tools · its alternatives →
- 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

Monitor DNS queries by host processes using eBPF! Contribute to furkanonder/DnsTrace development by creating an account on GitHub.
2024 · github.com · its alternatives →
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9 free tools to keep your email out of spam
Aug 2026 · truelist.io · its alternatives →
- 21
IPMYP▲2IP, DNS & network diagnostics and monitoring for developers
Jul 2026 · ipmyp.com · its alternatives →
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A tool to monitor website status, domain expiry, etc
2025 · webonitor.xyz · its alternatives →
- 24

Every tool a developer needs, all in one place
2025 · toolkit-hub.gotodev.ma · its alternatives →
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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 →