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JavaScript file system utilities for Node.js and browser.

npm i memfs

• In-memory Node.jsfs API
• In-memory browser File System (Access) API
• fs to File System (Access) API adapter
• File System (Access) API tofs adapter
• Directorysnapshot utility
• print directory tree to terminal
• Code reference
• Test coverage

• Git in browser, which writes to a real folder
• Git in browser, which writes to OPFS file system
• Git on in-memory file system
• fs in browser, creates a.tar file in real folder
• fs in browser, synchronous API, writes to real folder

• unionfs - creates a union of multiple filesystem volumes
• fs-monkey - monkey-patches Node'sfs module andrequire function
• linkfs - redirects filesystem paths
• spyfs - spies on filesystem actions

Apache 2.0