Pulsy vs UptimeRobot
The open-source UptimeRobot alternative
UptimeRobot is a solid hosted monitor, but its plans scale by paid monitor count, features unlock by tier, and the code is closed. Pulsy runs the same HTTP, keyword, and TLS-expiry checks and is open source under AGPL-3.0 — self-host it free forever on your own infrastructure, or run Pulsy Cloud on flat plans that are never billed per monitor.
Where Pulsy differs from UptimeRobot
- Open source (AGPL-3.0) — read the code, fork it, or self-host it free forever with every capability on.
- No per-monitor billing. Self-hosted has no bill at all; Pulsy Cloud is flat plans.
- Every notification channel, public status page, and TLS-expiry alert is included, not unlocked by tier.
- Localized dashboard in five languages with full right-to-left support.
UptimeRobot vs Pulsy, side by side
| Feature | Pulsy (self-hosted) | Pulsy Cloud | UptimeRobot |
|---|---|---|---|
| Pricing | Free forever — you run it (AGPL-3.0) | Free tier, paid plans from $12/mo | Free tier + paid per-monitor plans |
| Source code | Open source, AGPL-3.0 | The same AGPL-3.0 code, managed for you | Proprietary |
| Where your data lives | Your own infrastructure | Hosted by Pulsy, exportable any time | Hosted by UptimeRobot |
| Pricing model | No bill — no monitor limit | Flat plans, not per-monitor | Priced by monitor count |
| Feature gating | Every capability on, no tiers | All channels and status pages on every plan | Integrations and features by tier |
| TLS expiry monitoring | Built in | Built in, every plan | Built in |
| Status pages | Included, custom domains | Included, custom domains | Included on paid plans |
| Dashboard | Localized (5 languages, RTL) | Localized (5 languages, RTL) | English-first |
Switching from UptimeRobot is painless
Re-create your monitors in minutes: point Pulsy at the same URLs, choose GET/HEAD/POST, set your interval and failure threshold, and connect your notification channels. Self-host with docker compose if you want the data on your own infrastructure, or start on Pulsy Cloud and move later — it is the same software either way.
Frequently asked questions
- Is there an open-source UptimeRobot alternative?
- Yes. Pulsy is open source under AGPL-3.0-or-later. Self-host it free forever with every capability on and no monitor limit, or use Pulsy Cloud (free tier, paid plans from $12/mo) if you would rather not run it yourself.
- Does Pulsy charge per monitor like UptimeRobot?
- No. Self-hosted Pulsy has no bill and no monitor limit. Pulsy Cloud is flat plans — the price does not scale with how many endpoints you watch.
- Can Pulsy monitor SSL certificate expiry like UptimeRobot?
- Yes. Pulsy watches TLS certificate expiry on every HTTPS monitor and can alert you before a certificate lapses, alongside up/down and degraded status.
- Does Pulsy have status pages?
- Yes. Pulsy serves public status pages with custom-domain support, included on every plan and in the self-hosted build.
Compare Pulsy with other monitors
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