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Life & fun · October 18, 2022

Filesystem Watcher

An arbitrary filesystem event watcher which is: - simple - efficient - dependency free - runnable anywhere with a filesystem - header only Watcher is extremely efficient. In most cases, even when scanning millions of paths, this library uses a near-zero amount of resources. Watcher is simple. The library exposes a single function and a single object. That is all. Happy hacking.

Filesystem Watcher launched on October 18, 2022 with 91 votes, #447 of 3,153 launches that month and more than 90% of that year's launches. The site was still online in September 2026, 4 years on.

Visit github.com ↗Filesystem Watcher alternativestop 14% of October 2022

In plain words

Filesystem Watcher is a header-only library that monitors filesystem events across any system with a filesystem. It is designed for developers who need to track file changes efficiently without external dependencies. The library emphasizes simplicity, exposing only a single function and object, while maintaining near-zero resource usage even when scanning millions of paths.

written from the facts on this page · September 2026

From the sources

Filesystem watcher. Works anywhere. Simple, efficient and friendly. - e-dant/watcher

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