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Walk an entire directory. Fast, simple, and asynchronous.





Install size

Walk an entire directory. Fast, simple, and asynchronous.


  • Zero dependencies. Small bundle size.
  • Written in TypeScript.
  • Fast and asynchronous. Suitable for large directories. Fastest tree-traversal solution on NPM.
  • Dead simple. Modeled after Golang's filepath.Walk.
  • Modern ESModules support.


Some comparisons between speedwalk and other Node.js libraries that provide tree-traversal solutions.

All tests were conducted on the same large directory. Each result is the average of each library's time to complete the walk with no custom functions provided.

|Package|Result| |-|-| |speedwalk|6.95ms| |walk|13826.33ms| |@root/walk|276.96ms| |walker|296.05ms|


Import the walk function from the package. To call it, pass in a root directory and a callback function accepting a path and a dirent.

import { walk } from 'speedwalk';

await walk('./', (path, dirent) => {
    console.log('Path:', path);
    console.log('Is a file:', dirent.isFile());

    if (dirent.isDirectory() && === 'node_modules') {
        // Tell "walk" to skip the traversal of a certain
        // directory by returning "true" from the callback.
        return true;

The function will asynchronously walk through the root directory and all subsequent directories until the entire tree has been traversed.