Life & fun · alternatives · 2026

24 alternatives to 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 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.… Below are 24 products that do a similar job, ranked by how close each is in meaning and then by launch-day votes. Filesystem Watcher launched in 2022; newer entries below may have overtaken it.

1. 1
   Filewatch▲129

   Find your public files, before someone else does

   2018 · its alternatives →

2. 2
   Fsev – OS X file event watcher under 50 lines▲22

   Pure OSX file event watcher using launchd. Contribute to arthry/fsev development by creating an account on GitHub.

   2019 · github.com · its alternatives →

3. 3
   GitHub File Watcher – get notified when files change in a GitHub repo▲68

   2015 · github-file-watcher.com · its alternatives →

4. 4
   FindDiskKiller▲106

   See which apps are hammering your Mac's disk

   Jul 2026 · finddiskkiller.com · its alternatives →

5. 5
   Pytest-watcher – A working alternative to Pytest-watch▲26

   Automatically rerun your tests on file modifications - olzhasar/pytest-watcher

   2021 · github.com · its alternatives →

6. 6
   Watch what files any Linux process accesses▲131

   Log what files are accessed by any Linux process. Contribute to spieglt/whatfiles development by creating an account on GitHub.

   2020 · github.com · its alternatives →

7. 7
   Watchpoints, an easy to use watchpoints equivalent library for Python▲77

   watchpoints is an easy-to-use, intuitive variable/object monitor tool for python that behaves similar to watchpoints in gdb. - gaogaotiantian/watchpoints

   2021 · github.com · its alternatives →

8. 8
   AWS Instance-Watcher▲116

   Daily recap notification of the running AWS instances

   2020 · github.com · its alternatives →

9. 9
   Laravel Nightwatch▲266

   First-class monitoring designed for Laravel

   2025 · nightwatch.laravel.com · its alternatives →

10. 10
    Watchman – Execute a command when a file changes▲12

    Execute a command when something changes. Contribute to crodjer/watchman development by creating an account on GitHub.

    2014 · github.com · its alternatives →

11. 11
    Mustardwatch: Detect what files a program uses, rerun when they change▲15

    2025 · github.com · its alternatives →

12. 12
    Zero – Local file system transparently swapping to the cloud▲252

    Local file system transparently swapping to the cloud - KonstantinSchubert/zero

    2018 · github.com · its alternatives →

13. 13
    Filewatch 2.0▲73

    Find your public files, before someone else does

    2019 · its alternatives →

14. 14
    Spacer▲97

    Tag-based File Explorer

    Nov 2025 · store.steampowered.com · its alternatives →

15. 15HL
    Hnwatch – Linux x64 terminal-based real-time HN watcher/reader▲102

    2015 · 2ton.com.au · its alternatives →

16. 16DA
    Datastringer, a tool for hacker-journalists▲60

    2014 · bbc-news-labs.github.io · its alternatives →

17. 17
    Arelo – A simple, flexible file watcher for auto-restarting commands▲5

    arelo is a lightweight, language-agnostic file watcher that automatically runs a command when files change. It requires no configuration files; everything is controlled via simple command-line options. Easy to use: arelo -p '**/*.go' -- go run . Flexible file watching: Supports fsnotify (real-time), polling (for environments like WSL2), and fine-grained control with extended globbing (** and {js,ts,json}). Cross-platform and lightweight: Runs on Windows, macOS, and Linux without extra dependencies. Installation: - go install github.com/makiuchi-d/arelo@latest - Or download a…

    2025 · github.com · its alternatives →

18. 18
    I missed the moving blocks, so I built a real Linux disk defragmenter▲97

    Linux filesystem defragger written in Rust and Qt Quick/Kirigami - gbin/defragger

    Aug 2026 · github.com · its alternatives →

19. 19
    Watchpod – A local K8s cluster tool: file watcher and build automator▲7

    Watchpod: Single instance K8s cluster tool that detects local file changes and automates the build and deployment of pods - MinikubeAddon/watchpod

    2018 · github.com · its alternatives →

20. 20
    ServiceRadar – open-source Network Observability Platform▲61

    ServiceRadar is an open-source platform for distributed, secure network management and observability, scaling to 100k+ devices. Born from frustration with complex traditional NMS tools like Zabbix, it bridges legacy (SNMP/syslog) and modern (gNMI, OTLP) protocols for cloud-native environments. We built ServiceRadar to simplify monitoring hybrid telecom networks, evolving it into a Kubernetes-native solution with Helm and Docker support. It uses mTLS with SPIFFE/SPIRE, NATS JetStream for event streaming (90M+ EPS), and SRQL for intuitive queries. Integrated with OpenTelemetry,…

    2025 · github.com · its alternatives →

21. 21
    Disk Space Fan▲74

    Fast disk space analyzer with smart visualizations

    2020 · diskspacefan.com · its alternatives →

22. 22
    FileSaver▲79

    Very fast multi-threaded OSS (MIT) file size scanner utility

    2020 · github.com · its alternatives →

23. 23
    Fileloom▲82

    A free, ad-free Android viewer for all your files

    May 2026 · play.google.com · its alternatives →

24. 24
    My nodejs-supervisor like tool, written in Go▲29

    Look at files changes and restarts a determined process - dallarosa/eyenotify

    2013 · github.com · its alternatives →

Ranked by how close each launch is in meaning, then by votes. Prices were read from each product’s own site when checked and can change. Refine with your own description →