Free tool
Free Disk Cataloging Tool
Drop a folder or drive below and this tool scans it in your browser: file count, total size, a breakdown by file type, and the oldest and newest file dates. Export the result as a CSV. Nothing is uploaded anywhere; the scan runs entirely on your machine.
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What does this disk cataloging tool show you?
This tool shows four things for any folder or drive you select: total file count, total size, a breakdown by file type (video, image, audio, document, archive, other), and the oldest and newest file modification dates in the scan. It also lists the 10 largest files it found, which is usually the fastest way to see what's actually eating space on a drive.
All of this comes from file metadata your browser already has access to (name, size, last-modified date). It doesn't open, read the contents of, or analyze any file beyond its name and size.
Is this a free alternative to NeoFinder or DiskCatalogMaker?
For a quick scan of a connected drive, yes. NeoFinder and DiskCatalogMaker solve a different problem: they save a browsable catalog of disks you've unplugged, so you can search them months later. This tool doesn't keep a database. It scans what's plugged in right now, free, with nothing to install.
If the reason you're cataloging is that your projects are spread across drives and you've lost track of what's backed up where, that's the problem we built Tusk for. It tracks every file's backup status across drives and cloud, even when the drive is sitting in a drawer. How Tusk tracks files across external drives covers how that works.
How do I export a list of files in a folder?
Run a scan, then click Download CSV under the results. The download includes every file the scan found: its path relative to the folder you selected, its size in bytes, its last-modified date, and the type category it was sorted into. The CSV is generated entirely in your browser from a JavaScript array, using a Blob and a temporary object URL. No file ever gets sent to a server to build the export.
Open the CSV in Excel, Numbers, or Google Sheets to sort, filter, or pass it along as a delivery manifest or a record of what's on a drive before you archive it. And if you keep exporting lists to remember what lives on which drive, Tusk does that bookkeeping automatically: it keeps a live record of every project file across your drives and cloud storage, so the list is always current without another scan.
Does this tool upload my files anywhere?
No. Nothing is uploaded. The scan uses the browser's File System Access API (Chrome, Edge, Arc, Brave) or a standard folder input (Safari, Firefox) to read file names, sizes, and modification dates directly from your Mac. No file content and no metadata is sent over the network at any point between selecting a folder and seeing your results. You can confirm this yourself: open your browser's Network tab before running a scan, and you'll see zero requests fire while the scan runs. The CSV export works the same way, building the file entirely in memory in your browser before your Mac writes it to disk.
What's the biggest file type taking up space on my drive?
The type breakdown table answers this directly: it groups every scanned file into video, image, audio, document, archive, or other, and shows both the file count and total size per category. For most creators, video and RAW image files dominate total size even when they're a small fraction of the total file count, since a handful of ProRes exports or camera RAWs can outweigh thousands of small project or cache files. The largest-files list below the breakdown names the specific files, not just the category, which is usually the faster way to find what to move or delete first. This doubles as a quick folder size calculator: select any folder and the total size and per-type sizes are the answer.
FAQ
Yes, this page is one: drop in a folder or connected external drive and it scans in your browser for file count, total size, a breakdown by file type, and the oldest and newest file dates, with a CSV export. It's free, requires no install, and doesn't upload anything. It's a quick, in-browser scan of a currently connected drive, not a saved, searchable catalog database like NeoFinder or DiskCatalogMaker builds for offline drives.
It depends on what you need. NeoFinder and DiskCatalogMaker both catalog disks you'll later disconnect: they scan once, save a searchable local database with thumbnails, and let you browse it without the disk plugged in. Neither has a real free alternative with that same offline-catalog feature. If what you actually need is a fast, free, one-time scan of a drive that's currently connected (file count, size, type breakdown, CSV export), this tool covers that narrower case for $0. If you need the drive tracked continuously as part of an active backup workflow rather than a one-off catalog, that's what Tusk is built for.
Select the folder using this tool's scan button (or drive picker), wait for the scan to finish, then click Download CSV. The file includes every scanned file's relative path, size in bytes, last-modified date, and type category. The CSV is built client-side from the scan results and downloaded directly. No upload step, no email, no account.
No, not with this tool. It only reads drives and folders that are currently connected to your Mac; it has no saved database and can't tell you anything about a drive once it's unplugged. If you need to search what's on a drive that's sitting in a drawer, you need a tool built for that specifically, like NeoFinder or DiskCatalogMaker, which save a browsable catalog from the last time you scanned the disk. A backup tool like Tusk covers a related but different case: it tracks files it's actively backing up, including their status while the drive is disconnected, but only for files inside a project it manages, not an arbitrary unindexed disk.
Yes, but with a different picker. Chrome, Edge, Arc, and Brave support the File System Access API, so this tool shows a native folder browser (showDirectoryPicker) that can also target a mounted external drive directly. Safari and Firefox don't support that API yet, so the tool falls back to a standard HTML folder input. The scan still reads every file's name, size, and date locally in both cases, and nothing is uploaded either way. The only difference is the picker dialog you see when you start a scan.