Chokidar vs nodemon
Which should you use? A side-by-side look at what each one does, who it suits, what it costs, how hard it is to set up, and where each falls short.
Open source · MIT
A Node.js library that watches files and folders and reports adds, changes, and deletions reliably.
Open source · MIT
A wrapper for node that restarts your app automatically when files change.
The short answer
Choose Chokidar if you need…
- Node.js developers building build tools or dev servers that rerun work on file changes
- Teams that need consistent file events across macOS, Windows, and Linux
- Projects that watch network or unusual filesystems and can accept higher CPU use via polling
- Developers who want to scope watches with ignore rules and depth limits
Choose nodemon if you need…
- Node.js developers running a web server locally who want fast edit-and-reload cycles
- Developers working on scripts in other languages such as Python or Ruby, using the execMap setting
- Teams that want a simple, configurable file watcher without changing their code
- Beginners learning Node.js who want changes to show up immediately
Side-by-side
| Chokidar | nodemon | |
|---|---|---|
| Type | Library | Dev tool |
| Price | Free and open source | Free and open source |
| Licence | MIT | MIT |
| GitHub stars | 12.3k | 26.7k |
| Setup difficulty | Intermediate | Beginner |
| How you get it | Install with a package manager | Install with a package manager |
| Main language | TypeScript | JavaScript |
| Last code update | 9 days ago | 4 days ago |
What each one is
Chokidar
Chokidar is a JavaScript/TypeScript library for Node.js that watches files and directories for changes. Raw Node file watching is inconsistent across operating systems, so Chokidar provides normalized add, change, and unlink events, with optional handling for editor saves and large writes. Developers use it inside build tools, dev servers, and scripts that need to react when files change.
nodemon
nodemon is a command-line tool that watches the files in your project and restarts your Node.js application when they change. It is a replacement for the node command: you run your script with nodemon instead of node, and it needs no changes to your code. It is used during development so you do not have to stop and start the server by hand after every edit.
Best for
Chokidar
- Node.js developers building build tools or dev servers that rerun work on file changes
- Teams that need consistent file events across macOS, Windows, and Linux
- Projects that watch network or unusual filesystems and can accept higher CPU use via polling
- Developers who want to scope watches with ignore rules and depth limits
nodemon
- Node.js developers running a web server locally who want fast edit-and-reload cycles
- Developers working on scripts in other languages such as Python or Ruby, using the execMap setting
- Teams that want a simple, configurable file watcher without changing their code
- Beginners learning Node.js who want changes to show up immediately
Strengths
Chokidar
- Normalizes file events so add, change, and unlink behave more predictably than raw fs.watch
- Uses native file watching by default to keep CPU use low, with polling as a fallback
- Offers filtering, depth limits, and editor atomic-save handling in one API
nodemon
- No changes to your code or workflow are required; you just replace node with nodemon
- Configurable through command-line flags, nodemon.json, or the nodemonConfig section of package.json
- Works with non-JavaScript scripts through --exec and execMap
Not ideal for
Chokidar
- Non-JavaScript projects, since it is a Node.js library (the README does not cover other runtimes)
- People who only need a one-off file check rather than ongoing watching
- Users who want to watch huge trees without filtering, since the README warns it watches everything under the given paths
nodemon
- Production servers, since the README presents nodemon as a development tool (the description says it is 'perfect for development')
- Projects that need restarts triggered by something other than file changes, since the README describes file-change watching as its core behavior
Trade-offs
Chokidar
- Polling can miss in-place writes that do not change size, modification time, existence, or inode, per the README
- Atomic and write-finish timing involve trade-offs between responsiveness and safety that users must tune
- The README is truncated, so some details of the event API and version changes are not fully visible
nodemon
- The README is truncated and some configuration docs are said to 'need better documentation', so advanced setups may take research
- Ignore patterns must be written as full-path globs (for example ** patterns), which the README notes is easy to get wrong
- Designed for development use, not as a production process manager
Getting started
nodemon
Install globally with npm
npm install -g nodemonInstall as a dev dependency
npm install --save-dev nodemonFrequently asked questions
What is the difference between Chokidar and nodemon?
Chokidar: A Node.js library that watches files and folders and reports adds, changes, and deletions reliably. nodemon: A wrapper for node that restarts your app automatically when files change. Chokidar suits node.js developers building build tools or dev servers that rerun work on file changes, while nodemon suits node.js developers running a web server locally who want fast edit-and-reload cycles.
Are Chokidar and nodemon free?
Chokidar: Free and open source. nodemon: Free and open source.
Which is easier to set up, Chokidar or nodemon?
nodemon is easier to get started with (rated beginner); Chokidar is rated intermediate and usually needs more setup.
Is Chokidar or nodemon more popular?
nodemon has more GitHub stars (26.7k) than Chokidar (12.3k). Popularity isn't the same as fit — check which one matches your use case above.
What are other alternatives to Chokidar and nodemon?
Other options people compare them with include Watchman, Flysystem, tsx.
Keep comparing
Built from our catalogue entries for both products: open-source details come from each project's README (AI-assisted, refreshed weekly) and GitHub data; AI-tool details are editorial. Spotted something wrong? Let us know from either product's page.