I need a super simple, privacy-focused uptime monitoring service for my personal projects that has a good free tier.

For simple + privacy-focused + free, I’d narrow it to these:

• hetrixtools.com — best fit if you want hosted simplicity. Its free plan gives you 15 uptime monitors, 1-minute checks, multiple monitoring locations, private reports, and email/notification integrations. Reports are private by default.HetrixTools+1

• Catch: the free account requires you to log in at least once every 90 days to keep it active.HetrixTools

• uptimerobot.com — simplest mainstream option. Free gives 50 monitors with 5-minute checks, plus HTTP, ping, port, keyword, SSL/domain monitoring and status pages. No credit card is required.UptimeRobot Help Center+1

• Privacy-wise, I'd put it behind HetrixTools if minimizing third-party exposure is your priority.

• Uptime Kuma — best privacy option if you're willing to self-host. It's open-source and runs on your own server, so monitoring data stays under your control. The tradeoff is that you have to deploy and maintain it yourself.KumaAlert

My practical pick

If this is for a handful of personal sites and you don't want to maintain another server, I'd start with HetrixTools. The combination of 1-minute checks, a generous free tier, and private-by-default reports is unusually good for a personal setup.HetrixTools+1

If by "privacy-focused" you mean "I don't want a third party seeing my monitoring targets at all," use Uptime Kuma self-hosted instead.

For a personal project, I’d pick one of these:

• Uptime Kuma — best privacy choice. Open source, self-hosted, no third party sees your URLs or uptime data. Great if you have a small VPS, Raspberry Pi, NAS, or Docker host. Tradeoff: you maintain it yourself.Netwarden+1
• HetrixTools — best hosted free tier. Free plan includes many monitors and fast checks, plus SSL/domain monitoring. Tradeoff: your monitoring data is stored by a provider.HetrixTools
• UptimeRobot — simplest setup. Good if you just want “ping my site and email me.” Tradeoff: less privacy because it is SaaS, and free-tier limits vary.PageLantern

My recommendation for a privacy-focused solo developer:

1. Run Uptime Kuma in Docker if you can spare 15 minutes of setup.
2. Use HetrixTools if you want zero maintenance.
3. Avoid sending sensitive internal endpoints to any hosted monitor. Use a private tunnel or self-hosting for those.

For personal projects where you want simplicity, a solid free tier, and minimal data tracking, a few standout options fit the bill depending on whether you prefer a hosted SaaS or self-hosting:

• Uptime Kuma — Best overall if privacy is your absolute top priority. It is a self-hosted, open-source cool-kid favorite. Because you run it yourself (it spins up via Docker in under two minutes), zero data about your personal projects leaves your own server. It features a gorgeous UI, supports Telegram/Discord/Gotify/Email alerts, and has no artificial limits.nurbak.com+1
• UptimeRobot — Best plug-and-play hosted free tier. If you don't want to manage a server just to monitor your servers, their generous free plan gives you 50 monitors with 5-minute check intervals. It's stripped-down, straightforward, and gets out of your way.uptimerobot.com
• OpenStatus — Best modern developer-focused alternative. Open-source core with a clean design, offering a free hobby tier that includes API/uptime monitoring and a status page. It's heavily focused on modern tech stacks and transparency.openstatus.dev+1

User Experiences

Uptime Kuma is open-source, loaded with integrations, and genuinely well-regarded in the self-hosted crowd. Spinning it up via Docker takes minutes and barely uses any CPU/RAM

UptimeRobot's free tier is the classic answer for a reason: 50 monitors, 5 minute checks, easy email/Slack alerts, and it just works

Would you prefer a fully hosted cloud service like UptimeRobot, or do you have a small VPS or home server where you can self-host Uptime Kuma?

If privacy is the priority, I’d split the options into two categories:

• Most private: Uptime Kuma — open-source and self-hosted, so your monitoring data stays on infrastructure you control. It’s very simple for HTTP/TCP/Ping checks, notifications, and status pages. The tradeoff is that you have to run it yourself.
• Simplest hosted option: UptimeRobot — currently offers 50 monitors, 5-minute checks, and a status page for $0, with no credit card required. UptimeRobot Help Center UptimeRobot Its privacy policy says it collects basic account information and uses third-party infrastructure/subprocessors, so it isn't as privacy-preserving as self-hosting.UptimeRobot
• More feature-heavy alternative: Better Stack — its free personal tier has 10 monitors/heartbeats and one status page, with 3-minute checks. It stores monitoring/telemetry data as part of a much broader observability platform, so it's arguably more service than you need for a handful of personal projects.BetterStack+1

My practical recommendation

For personal projects + minimal fuss, I'd start with UptimeRobot. Its current free tier is unusually generous: 50 monitors and 5-minute checks is plenty for a collection of hobby sites/APIs.UptimeRobot Help Center

If by "privacy-focused" you mean "I don't want a third party knowing what I'm monitoring", use Uptime Kuma on a small VPS/home server instead.

uptimerobot.com · github.com ·betterstack.com

If you tell me whether you're willing to self-host, I can narrow this down to 2–3 options that fit particularly well.

If you want absolute privacy, the ultimate solution is self-hosting . If you prefer a managed cloud service with a generous free tier and minimal data footprint, a couple of lightweight options fit best.onlineornot.com

1. Uptime Kuma (Self-Hosted / Ultimate Privacy)

If you have a spare $3/month VPS (or an old Raspberry Pi running at home), Uptime Kuma is the gold standard for personal projects.uptimekuma.co+1

• The Good: 100% open-source, zero external telemetry, beautiful UI, supports HTTP(s), TCP, Ping, Docker containers, and sends alerts via Telegram, Discord, Slack, or email.
• The Privacy Angle: You own all the data. Nothing leaks to a third-party SaaS company.
• The Cost: Free software; you just pay for whatever minimal hardware/server you host it on (if not local).github.com+1

2. Better Stack Uptime (Managed Cloud)

If you don't want to manage your own monitoring server, Better Stack offers a remarkably polished free managed tier.vantaj.co

• The Good: The free tier includes 10 monitors, 3-minute check intervals, a public status page, and email/Slack alerts.
• The Privacy Angle: They are GDPR-compliant, transparent about data collection, and don't inject tracking pixels or sell user telemetry. They only ping your public endpoints.
• The Cost: Free forever for up to 10 monitors.vantaj.co

3. UptimeRobot (The Classic Simple Option)

UptimeRobot is the most hands-off, ultra-simple hosted checker.uptimerobot.com

• The Good: Gives you a massive 50 monitors on the free tier with 5-minute check intervals. Setup takes literally 30 seconds.
• The Privacy Angle: It’s a traditional SaaS, so they collect basic account metadata, but for checking if a public URL is returning a 200 OK status, it requires zero intrusive integration.
• The Cost: Generous free tier.lemwatch.com+1

To help narrow this down:

• Do you want a hosted SaaS where you just drop a URL in, or are you open to a self-hosted tool like Uptime Kuma?
• How many monitors/projects do you need to track?

Uptime Kuma is the best choice for a super simple, 100% privacy-focused uptime monitor because it is open-source, self-hosted, and keeps all your data strictly on your own hardware or private server.onlineornot.com+2

Watch this overview of Uptime Kuma and other tools to see how easy self-hosted monitoring works:

Top Privacy-Focused and Free Options

• Uptime Kuma : An open-source, self-hosted monitoring tool with a gorgeous UI. It supports HTTP(s), TCP, Ping, and DNS checks, and sends notifications via Telegram, Discord, Gotify, and email without sharing any data with third-party SaaS platforms.reddit.com+2
• UptimeRobot (Free Tier) : A popular cloud-hosted option if you don't want to manage your own server. It offers a generous free tier of 50 monitors with 5-minute check intervals, though your URL data is hosted on their servers rather than kept strictly private.uptimerobot.com+2
• Better Stack (Free Tier) : A modern hosted observability and uptime platform providing a robust free tier with 10 monitors and rapid 30-second check intervals, though it is a cloud service rather than a self-hosted privacy-first choice.youtube.com+4

Would you prefer a self-hosted tool like Uptime Kuma that you run yourself, or a free cloud-hosted plan like UptimeRobot that requires zero setup?

If privacy is the priority, I’d pick Uptime Kuma.

• Uptime Kuma — best privacy choice. It’s open-source and self-hosted, so your monitored URLs, uptime history, and alerts stay under your control. It’s free with no hosted-service monitor limit; the tradeoff is that you need somewhere to run it.Uptime Kuma+1
• HetrixTools — best if you want zero server maintenance. Its free tier currently includes 15 uptime monitors, checks from multiple locations, SSL/domain monitoring, status pages, and lots of notification integrations. The free account requires logging in at least once every 90 days.HetrixTools+1
• UptimeRobot — extremely simple and has a generous free monitor count, but I'd put it behind the two above for a privacy-focused setup. Its free plan has also had usage restrictions, so I'd check the current terms before relying on it for anything beyond personal projects.PageLantern

My recommendation

If you have a VPS/NAS/Raspberry Pi: Uptime Kuma. If you don't want to maintain anything: HetrixTools.

For a couple of personal websites, I'd personally choose Uptime Kuma if privacy matters more than absolute convenience. You can run it in Docker and keep the monitoring database entirely on your own machine/server.Uptime Kuma

If you tell me whether you already have a VPS/NAS/Raspberry Pi, I can narrow it down to the simplest setup.

If absolute privacy is your main goal and you want a "free tier," you actually have two distinct paths: Self-hosted open-source (where your data never leaves your own hardware/VPS, making it 100% private) or a zero-setup cloud free tier with a clean privacy track record.

Option 1: The Ultimate Privacy Choice (Self-Hosted)

• Uptime Kuma : This is the gold standard for personal and hobby projects. It's a fancy, incredibly polished, self-hosted monitoring tool.
  • Cost / Free Tier: 100% free and open-source. You just run it yourself (it takes 2 minutes via Docker). If you host it on a tiny free-tier cloud instance (like Oracle Cloud's Always Free tier) or an old Raspberry Pi at home, it costs $0.
  • Why it fits: Because it lives on your own infrastructure, zero data is sent to a third-party SaaS company. It supports 20-second check intervals, beautiful status pages, and 90+ notification channels (Discord, Telegram, ntfy, email, etc.).github.com+4

Option 2: The Easiest Zero-Setup Cloud Options

If you don't want to host or maintain a server yourself and need a managed cloud tool with a generous free tier:youtube.com+1

• Better Stack (Uptime) : Known for having a gorgeous UI and an amazing free tier.
  • Free Tier: Includes frequent checks (3-minute intervals), 10 free monitors, SSL monitoring, and incident alerts.
  • Privacy: They are transparent, GDPR-compliant, and built with modern observability standards, though your data lives on their cloud.visualsentinel.com
• UptimeRobot : The veteran simple uptime checker.
  • Free Tier: Gives you up to 50 monitors with 5-minute check intervals.
  • Privacy: Very straightforward, though the free tier is basic and heavily pushes you toward upgrades. Good if you just want simple HTTP/ping pokes without fuss.instapods.com+2

“Uptime Kuma is the self-hosted default? Unlimited monitors, 20-second checks, status pages, 90+ notification channels, $3/mo on InstaPods.”

To help you narrow this down:

• Do you have a spare server, Raspberry Pi, or cheap VPS you can host on, or do you strictly need a fully managed cloud service?
• What kind of notifications do you prefer (Discord, Telegram, Email, or Webhooks)?

If privacy is the priority, I’d pick Uptime Kuma.

• Uptime Kuma — Best privacy choice. It’s open-source and self-hosted, so your monitored URLs, incidents, and monitoring data stay under your control. It has unlimited monitors and configurable check intervals. The tradeoff is that you need somewhere to run it (Docker, VPS, home server, etc.).Nines+1
• HetrixTools — Best if you don't want to self-host. Its free tier currently includes 15 uptime monitors and checks from multiple locations, plus SSL/domain monitoring.HetrixTools
• Better Stack — Probably the nicest hosted experience, with 10 monitors, 10 heartbeats, and a status page free, with 3-minute checks. But you're putting monitoring data in a third-party SaaS, so it wouldn't be my first choice for a privacy-first setup.Better Stack

My recommendation

If you already have a VPS/home server: Uptime Kuma. If you want literally zero infrastructure: HetrixTools.

For a handful of personal projects, Uptime Kuma is hard to beat: $0 software cost, no vendor lock-in, and your monitoring data doesn't need to leave your infrastructure.Nines

If you tell me whether you already have a VPS/server or want a completely hosted solution, I can narrow it down to the simplest option and give you a 5-minute setup.