UptimeKit-CLI

Judgement

What it is

Developer tool

What it does

A cross-platform terminal tool with a TUI for monitoring website and API uptime, storing history in SQLite.

Adopt it when

You want to watch a few endpoints from your terminal without running a server.

Watch out

Young single-author project with no pushes since March 2026.

Ready for

Experimental

Runs as

Command line

Built with

JavaScript, Node.js, SQLite and React

How established

Young: started 11 months ago, latest release v1.3.1.

What the license allows

You can build it into a product you sell, as long as you keep its copyright notice.

Judged on 2026-11-03 from the project's README and GitHub data. The license and age lines are worked out directly.

Built from

Follow it down: UptimeKit-CLI → V8 → LLVM project → runs on a microchip

How compilers were built, back to punched paper tape

Open-source alternatives to UptimeKit-CLI

1. 1
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Commercial uptime monitors

1. 1
   Pingdom SolarWinds

   Swedish website monitoring software company

   Complete system Production-ready A business wants established external monitoring of website uptime and performance.

   25 readers a month Since 2005 Commercial
2. 2
   UptimeRobot UptimeRobot

   Start monitoring in 30 seconds. Use advanced SSL, keyword and cron monitoring. Get notified by email, SMS, Slack and more. Get 50 monitors for FREE!

   Complete system Production-ready You want simple, cheap or free monitoring of a handful of sites with alerts.

   Commercial
3. 3
   Better Stack Uptime Better Stack

   The most reliable uptime monitoring. Get 10 monitors, 10 heartbeats and a status page with 3-minute checks totally FREE.

   Complete system Production-ready A small engineering team wants uptime checks, on-call and status pages in one inexpensive tool.

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4. 4
   Checkly Checkly

   The only monitoring platform built from the ground up to be operated by developers and agents to give teams a clear signal of application health.

   Developer tool Production-ready Developers want end-to-end tests of critical user flows running as production monitoring from the same code.

   Commercial