Monitor websites for changes and send alerts when content updates. Single container with local datastore for checks and snapshots.
Notes
Designed for low-resource self-hosting and long-running watches.
Open-source contribution
freechangedetection.io is commercially funded and takes no donations. We cannot forward anything, so this template costs nothing.
Last checked 2026-07-29
01
Connect a device: a Raspberry Pi, a Linux machine, or an Apple silicon Mac.
02
Click install in the dashboard. The template is signed; your device verifies the signature before anything runs.
03
Optionally attach your own domain. HTTPS certificate included, no port forwarding.
Your data stays on your device. obacht handles the tunnel, SSL, and domain.
Sign up for the closed beta