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Dev tools · alternatives · 2026

24 alternatives to StayUp.dev

Find out if it’s your server or Cloudflare messing up.

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.

  1. 1

    After down detector went down with the rest of the internet during the Cloudflare outage today I decided to build a robust, independent tool which checks if down detector is down. Enjoy!!

    Nov 2025 · downdetectorsdowndetector.com · its alternatives →

  2. 2

    The one tab developers never close

    Feb 2026 · stayawake.dev · its alternatives →

  3. 3
    Apex Ping▲303

    Uptime & performance monitoring for websites and APIs

    2016 · its alternatives →

  4. 4

    Hi Hacker News! Shahar and Tal from Keep here. A few months ago, we introduced here at HN (https://news.ycombinator.com/item?id=34806482) Keep as an “open source alerting CLI” and got some interesting feedback - mainly around UI, automation, and supporting more tools. We were VERY early back then, and we understood that although the current DX around creating alerts is not great, it's not that critical and developers don’t need another tool just for that. But we did find something else. While talking to developers and devops, we found that a lot of companies use many tools…

    2023 · github.com · its alternatives →

  5. 5

    Tool to check if site uses CloudFlare

    2017 · its alternatives →

  6. 6

    Alert your entire team when your site goes offline.

    2015 · brandongreen.co · its alternatives →

  7. 7

    The essential tool for checking if a website is up or not

    2015 · downforeveryoneorjustme.com · its alternatives →

  8. 8

    Get instant alerts when your website goes down.

    2023 · uptime-monitor.io · its alternatives →

  9. 9

    Keep your web service alive with Pulse

    2023 · its alternatives →

  10. 10
    DTEKT▲70

    Website uptime and performance monitoring

    2021 · its alternatives →

  11. 11

    Be the first who knows that your website is down

    2021 · its alternatives →

  12. 12CA
  13. 13DM

    Hi HN! I am Krishna Thota, founder of DevRaven. DevRaven is a monitoring platform for Developers. DevRaven enables engineering teams or individual developers to setup active monitoring for their services/applications and get alerted when things don't work as expected Today's launch makes available the following features: API Monitoring - Monitor your HTTP end points and perform no-code or scripted assertions. Synthetic Monitoring - Execute browser based end-to-end tests using Playwright framework. No setup required. SSL Monitoring - Monitor SSL certificates for your end points and get…

    2022 · devraven.io · its alternatives →

  14. 14
    Monika▲78

    Open source and free HTTP monitoring tool

    2022 · monika.hyperjump.tech · its alternatives →

  15. 15

    I'm trying to disrupt the insane pricing of uptime monitoring. I hope you'll help me out. I'm trying to create the absolute cheapest dev monitoring tool on the market, while still being competitive with all the others. This means $3/month plan, while still having monitoring for: Website, REST API, UDP/TCP, ICMP, Heartbeat/CRON, WS/WSS, DNS, Domain Intel/expiry and SSL. Everything with unlimited alerts through webhooks. I'm also taking an unlimited approach to the amount of checks you can have. I'd love to hear your thoughts.

    2025 · exit1.dev · its alternatives →

  16. 16
  17. 17

    The fastest all-in-one domain & website monitoring tool

    2022 · domain-monitor.io · its alternatives →

  18. 18
    Eurker▲16

    Hi HN, I built an uptime monitoring tool similar to other services, but more lightweight, easier to set up, and focused on developer flexibility. It includes all the essential features — keyword assertions, custom HTTP methods, retries, alerts via SMS/Email/Slack/Webhooks — with a clean JSON config system for advanced setups. I originally made it last month to learn more about Firebase Cloud Functions and Cloud Run, and to build something real for my portfolio. It turned out to be genuinely useful, so I’ve decided to share it. Would love your feedback – especially from devs…

    2025 · eurker.com · its alternatives →

  19. 19

    Don't let a CDN outage break your site silently

    Dec 2025 · upsonar.io · its alternatives →

  20. 20

    Uptime monitoring system made for devs and sys admins.

    Jun 2026 · alwaysup.dev · its alternatives →

  21. 21

    Synthetic Monitoring for Developers by Developers

    2024 · checks.dev · its alternatives →

  22. 22

    Stay Online, Stay Ahead!

    2024 · uptime.utyl.in · its alternatives →

  23. 23AF
  24. 24

    Is it down? Plus 25 free web diagnostic tools

    Jun 2026 · isitdown.page · 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 →