# Introducing Upright: An Open Source Synthetic Monitoring System

DevFeed: [Introducing Upright: An Open Source Synthetic Monitoring System](<https://devfeed.tech/articles/introducing-upright-an-open-source-synthetic-monitoring-system-33504.md>)

Original publisher: [Read original article](<https://dev.37signals.com/introducing-upright/>)

Author: Lewis Buckley

Published: 2026-02-16T18:00:00Z

Content type: release

Language: en

Sources: [37signals Dev](<https://devfeed.tech/sources/37signals-dev.md>)

Topics: [synthetic monitoring](<https://devfeed.tech/topics/synthetic-monitoring.md>), [Monitoring](<https://devfeed.tech/topics/monitoring.md>), [Open Source](<https://devfeed.tech/topics/open-source.md>), [Playwright](<https://devfeed.tech/topics/playwright.md>), [Rails](<https://devfeed.tech/topics/rails.md>), [Prometheus](<https://devfeed.tech/topics/prometheus.md>), [Grafana](<https://devfeed.tech/topics/grafana.md>), [Deployment](<https://devfeed.tech/topics/deployment.md>), [SQLite](<https://devfeed.tech/topics/sqlite.md>)

Tags: [deployment](<https://devfeed.tech/tags/deployment.md>), [grafana](<https://devfeed.tech/tags/grafana.md>), [monitoring](<https://devfeed.tech/tags/monitoring.md>), [open-source](<https://devfeed.tech/tags/open-source.md>), [playwright](<https://devfeed.tech/tags/playwright.md>), [prometheus](<https://devfeed.tech/tags/prometheus.md>), [rails](<https://devfeed.tech/tags/rails.md>), [sqlite](<https://devfeed.tech/tags/sqlite.md>), [synthetic-monitoring](<https://devfeed.tech/tags/synthetic-monitoring.md>)

## AI overview

37signals is open-sourcing Upright, a synthetic monitoring system built to monitor Basecamp, HEY, Fizzy, and other services. Upright runs health checks from multiple geographic locations and reports results through Prometheus metrics for alerting and Grafana visualization.

## Source excerpt

We're open-sourcing Upright, the synthetic monitoring system we built to watch over Basecamp, HEY, Fizzy and our many other services.