Does the Local Folder Indexer upload my files anywhere?

No. All file indexing is performed entirely inside your browser. No file data, file names, or folder structure is ever sent to any server.

Does the app work offline?

Yes. Once you have downloaded the HTML file, it runs completely offline with no internet connection required.

Can I save the index for later use?

Yes. You can save the index to the browser's localStorage or export it as a JSON file to reload in a future session.

Local Folder Indexer – Free Browser File Search Tool

Q: Which browsers support all features?

Chrome and Edge support the full File System Access API for the best experience. Firefox and Safari support the folder upload method as an alternative.

About Local Folder Indexer

Local Folder Indexer is a free, self-contained HTML web application created by Charlie Shine, Ph.D., Brain Scientist at brains4goodlife.com. It allows any user to select a local folder in their browser, instantly index every file within it, and then search, sort, filter, and export the resulting file list — entirely within the browser, with no server connection and no data upload of any kind.

Key features include: folder indexing via the File System Access API (Chrome/Edge) or folder upload (all browsers), full-text search by file name, path, extension, and MIME type, sorting by name, size, date modified, path, or relevance score, filtering by file extension, saving the index to localStorage, and exporting or importing the index as a JSON file. The app works offline once downloaded and requires no installation.

This tool is especially useful for developers, researchers, and anyone who needs to quickly find files across large local directories without exposing data to the internet.

2) Search / Filter / Sort

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Frequently Asked Questions

Does this app upload my files anywhere?

No. All file indexing runs entirely inside your browser. No file names, contents, or folder structure are ever sent to any server.

Does it work offline?

Yes. Once you have downloaded the HTML file, it runs completely offline — no internet connection is needed.

Which browsers support all features?

Chrome and Edge fully support the File System Access API for the best experience. Firefox and Safari can use the folder upload method instead.

Can I save the index and reload it later?

Yes. Use Save Index to store it in your browser's localStorage, or Export JSON to save the index as a file you can reload in any future session with Import JSON.

Local Folder Indexer · Standalone Web App

2) Search / Filter / Sort

Frequently Asked Questions