Monika
Open source and free HTTP monitoring tool
Monika launched on February 18, 2022 with 78 votes, #560 of 2,645 launches that month and more than 75% of that year's launches. The site was still online in September 2026, 4 years on.
What it does
Get notified from whatever app you want (Telegram, Slack, etc) when your website or API is down based on HTTP status code or content of the response, or when your server is slow. You can install it in as many as computers as you want wherever they are.
Free and Open Source Synthetic Monitoring Tool
Or from any other communication channel. It's quick, easy, and completely free! Thank you Monika by Hyperjump. With Monika, we can improve our services SLA, get notified early when we have a server issue. Easy to install, have multi notification channels, can be setup from different server regions, and is easy to integrate on the dashboard make it all complete and help us to analyze the issue asap. Before using Monika, we were unaware when our website is down until our users reported it. We don’t want it to happen again. Now with Monika, we are notified much faster so our team can react quicker to solve the issue. Thank you, Monika! Already know what you want to monitor? Great! First step…from monika.hyperjump.tech
Does a similar job
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Monika, Open Source Monitoring2021 · monika.hyperjump.tech · ▲20Free and Open Source Synthetic Monitoring Tool

Simple Uptime2024 · simpleuptime.app · ▲203Monitor the health of your websites and servers inside Slack

StatusOk (Open source)2016 · github.com · ▲134Get notified through Slack/email when your website is down

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