Cleanup
Finds big files, big folders and duplicates on this Mac, and tells you how much space you can free. Undo works here too.
A Finder alternative, written in Rust, with fast search and a rich file viewer built in. Get results while you type, browse your other computers, and see inside Markdown, tables, code, PDFs and photos without opening them.
Fast Finder runs on a Mac or a Windows PC. Open this page there, or read the download notes.
Sample files. The search time is a sample inside the estimate for a Mac with M5, 25 to 37 ms in full speed mode.
01Speed
Scaled from measurements on a Mac Studio with M2 Max using Geekbench 6 ratios. How we estimate
Full speed mode is an option in Settings; the default is Throttled. Bars use a scale of 1 second, or 100% for CPU. We did not time Finder.
Measured with a 0.1.0 Mac build on a Mac Studio, Apple M2 Max, 32 GB, macOS 27.0.1, while other builds ran on the same machine. These are the measured numbers, not estimates.
| # | Measure | Result |
|---|---|---|
| 1 | Launch to window on screen | 295 ms |
| 2 | Launch to first folder listing | 365 ms |
| 3 | Open a 50,000-file folder | 364 ms |
| 4 | Scroll frame, details view, 50,000 items | 6 to 9 ms |
| 5 | Search through the app, 2,000 hits, full speed mode | 37 to 55 ms |
| 6 | Search through the app, Throttled mode (the default) | 80 to 210 ms |
| 7 | First search after launch | 4.1 s |
| 8 | First index of the disk, 5.9 million entries, full mode | 47 s |
| 9 | First index of the disk, Throttled mode | about 2 min |
| 10 | Copy one 2 GB file, same volume (APFS clone) | 0.1 ms |
| 11 | Copy one 2 GB file, other volume | 2.3 to 2.6 s |
| 12 | Copy a folder of 20,000 files, same volume | 2.7 s |
| 13 | Copy a folder of 20,000 files, other volume | 8.4 to 9.4 s |
| 14 | Idle CPU | 0.0 to 0.2% |
| 15 | Quit | 15 to 18 ms |
Each number above is a measurement on the M2 Max, multiplied by how much faster the M5 is on the kind of work that limits it. We use Geekbench 6 averages: single-core 2,719 for the M2 Max and 4,252 for the M5 (ratio 0.64), multi-core 14,777 and 17,606 (ratio 0.84). We round every result up, toward slower.
| # | Measure | What limits it | M2 Max, measured | M5, estimate |
|---|---|---|---|---|
| 1 | Launch to window on screen | One CPU core (app start, window setup) | 295 ms | 190 ms |
| 2 | Open a 50,000-file folder | One CPU core (file system calls) | 364 ms | 235 ms |
| 3 | Search, 2,000 hits, full speed mode | Search helper on all cores (4 to 5 ms), the rest on one core | 37 to 55 ms | 25 to 37 ms |
| 4 | Search, Throttled mode (the default) | Efficiency cores; we use the smaller multi-core ratio | 80 to 210 ms | 70 to 180 ms |
| 5 | Idle CPU | One CPU core (timers) | 0.2% | 0.15% |
Sources: Geekbench 6 averages from EveryMac for the Mac Studio with M2 Max and the MacBook Pro with M5. The M5 has a smaller GPU than the M2 Max, but drawing a file list uses little of it. These are estimates, not measurements, and not guarantees for your Mac.
02Search
Click Fast search, or press ⌘ F, and type a few letters. The first results show while you type. Fast Finder searches names and file contents from its own index on your Mac. While the first index builds, Spotlight answers.
Real screenshots of the search card, with sample files. The search time is a sample inside the estimate for a Mac with M5 in full speed mode, 25 to 37 ms. The default Throttled mode takes 70 to 180 ms.
Words of five letters or more still match when you make a typo.
Filters for type, size and date are there when you need them, in the search options. Save up to 100 searches.
The index lives in a private folder on your Mac. The search helper opens no network connection, and it never downloads online-only cloud files.
03Tailscale
If you use Tailscale, your other Macs and PCs show up under Network. Open them, search them, and copy files between them like any local folder.
A delete on another computer is permanent. An allowed login can read, change and delete anything there.
The agent listens on the computer's Tailscale address, never on all addresses. It does not start without one.
Each request is checked with tailscale whois. By default only your own login gets in. Tagged devices are refused.
About 15 MB of memory and 0.0% CPU while it waits. No timers.
04Peek
Select a file and the details sidebar shows what is in it: rendered Markdown, tables, JSON, code with line numbers, the first page of a PDF, and photos with their camera data. Press Space for Quick Look.
Real screenshots with sample files.
05Features
Cleanup, undo for file work, cloud folders, tabs, and a few things most file managers leave out.
Finds big files, big folders and duplicates on this Mac, and tells you how much space you can free. Undo works here too.
Copy, move, rename and trash can be undone. Name clashes ask: Replace, Skip or Keep both.
Folders for OneDrive, iCloud Drive, Google Drive, Dropbox and Box appear when they exist on your Mac, with marks for online-only files. Opening an online-only file asks first.
SMB, NFS and AFP shares with Eject. Passwords stay in macOS.
Your tabs return when you open the app again. Reopen a closed tab with one shortcut.
Finder tags as colored dots, a column and a sidebar list. The Trash view shows where each item came from, with Put Back.
zip, tar, tar.gz, tar.bz2, tar.xz and 7z open read-only. Extract here or to a folder. Hardened against path traversal, links and zip bombs. There is no Compress item.
Rename one file, or a whole selection in one step.
Details, List, Small icons, Icons and Large icons. Columns resize and sort. Numbers sort as numbers.
Work in two folders side by side. F5 copies to the other pane, F6 moves.
Branch, ahead and behind, and a badge on each changed file in any repository folder.
Open Terminal or your editor in the current folder, or run a command there and see the output.
06Privacy
Your files, names, paths and search words never leave your computer. Anonymous usage counts can be turned off with one switch. Crash reports are sent only when you press Send.
DO_NOT_TRACK=1 also turns usage counts off07Keyboard
Arrow keys, Home, End and Page keys move and extend the selection. On Windows, ⌘ is Ctrl.
08Customize
The context menu is a JSON file. Add your own commands with {path}, {paths}, {name} and {dir}, limit them to some file types, and ask before they run. If the file is invalid, Fast Finder uses the defaults and shows an error.
1{
2 "label": "Shrink images",
3 "command": "sips -Z 2000 {paths}",
4 "when": "selection",
5 "ext": ["png", "jpg", "heic"],
6 "confirm": true
7}
09Windows
The same app for Windows 10 and 11, 64-bit, tested on Windows 11. Some Mac features are not there yet.
10FAQ
Yes. Fast Finder is free to download and use for personal and non-commercial use. Premium features will come later.
Fast Finder is a separate app. It does not change or remove Finder. Keep it in the Dock and use it for daily file work; Finder stays where it is. How it differs from Finder.
Macs with Apple silicon (M1 or newer) and macOS 13 or later. There is no Intel build.
Yes, a beta for Windows 10 and 11 (64-bit). It is not signed yet, so SmartScreen asks once. Quick Look, tags, the search index, the Trash view and cloud marks are not in the Windows beta. Read about the beta.
Not to us. Files move only when you copy them to your other computers or to a server you type in. Your files, names, paths and search words never leave your computer. Anonymous usage counts can be turned off with one switch. Crash reports are sent only when you press Send. Full privacy notes.
Install Fast Finder and Tailscale on each computer, signed in to the same Tailscale account, and turn on two switches. A small agent listens only on the computer's Tailscale address and checks every request with tailscale whois. By default only your own login gets in. Setup and security model.
On a Mac with M5, we estimate that a search with 2,000 hits takes 25 to 37 ms through the app in full speed mode, an option in Settings, and 70 to 180 ms in the default Throttled mode. We scaled these from measurements on a Mac Studio with M2 Max (37 to 55 ms and 80 to 210 ms) with Geekbench 6 ratios. On that M2 Max, the first index of 5.9 million entries took 47 seconds in full speed mode and about 2 minutes in Throttled mode; Spotlight answers until it is ready. The first search after launch took 4.1 seconds.
No. Fast Finder is written in Rust and draws its interface on the GPU with gpui, the UI framework from Zed. The main window uses no Electron and no web view. Only the offline HTML preview uses the system web view, with JavaScript off.
No. Fast Finder does not check for updates. To update, come back to the download page and download the newest build. New builds are listed in the changelog.
Version 0.1.0 is an early release. 656 unit tests pass, and file work has undo. Delete moves items to the Trash by default; permanent delete has its own shortcut and is labeled. Back up a folder before you try a bulk rename on it.
One download, 10.3 MB. Free, and notarized by Apple.
The Windows beta is one zip, 18.3 MB. Free.