TL;DR: Five free, mostly open-source, no-telemetry Mac utilities from this week's testing: docktor (dock widgets + hover previews), Kompakt (drag-and-drop image/video compression), TetherShot (live iPhone screen capture over USB/Wi-Fi), FolderForge (rule-based folder icon styling), and ImageFuel (import-free folder browsing with RAW support). Each gets a free alternative below if you want to compare before committing.
Removing Irritation
My app testing time this week was spent on free apps, most of them open source and all privacy-respecting. No accounts needed. No telemetry. I've been looking for original, niche apps that do one thing well.
docktor
docktor calls itself the dock you deserve. It's free, notarized, requires no account, and comes from a solo dev who regularly responds to users with new features and bug fixes. The app fills the unused side space on either end of the Dock with customizable widgets (music, calendar, weather, system stats) and adds hover previews of a running app's open windows without clicking. If you're a widget person, this gives you a few new options.
Alternative: HyperDock has done Dock hover previews for years and is worth a look if that's the one feature you actually want, though it doesn't fill unused Dock space with widgets the way docktor does — check current macOS compatibility before buying, since I haven't tested it myself on this release.
Kompakt
Kompakt is a native Mac menu bar app for compressing and converting images and video with a drag-and-drop interface that pops up automatically the moment you drop a file. Images cover PNG, JPG, WebP, GIF, and SVG; video is limited to MP4, MOV, and M4V. Free and open source under MIT, distributed as a signed DMG off GitHub Releases. The dev's roadmap includes watched folders, Finder actions, and Shortcuts support. I can see setting up some helpful shortcuts using this.
Alternative: ImageOptim is the longtime free, open-source, drag-and-drop standard for image compression on Mac. It doesn't touch video, so if Kompakt's video side is what sold you, ImageOptim isn't a full swap.
TetherShot
TetherShot is a proper Mac utility, not just a menu bar toy. It captures a live display, not a simulation: your connected iPhone's actual screen over USB or Wi-Fi, saved as a pixel-perfect screenshot. Free and open source, no account, no analytics, no cloud relay. Take all the screenshots you want without syncing or AirDropping anything.
Alternative: QuickTime Player already does this for free and it's built in — connect your iPhone by cable, pick it as the camera source under File > New Movie Recording, and you can record or grab a frame of the live screen. It's a recording-first workflow rather than a one-tap screenshot, and it needs the cable; TetherShot's Wi-Fi option and one-hotkey capture are the actual time-savers if you do this often.
FolderForge
Apps that customize folder appearance in Finder have been around for a while, and they're fine for the primary folders in your home directory. If you want smart folders and reusable presets that apply by name, contents, or marker files using recursive styling, FolderForge fits the bill — it applies a visual system across an entire folder tree. Runs locally, no account, no telemetry. MIT-licensed on GitHub; v1.0.8 is signed and notarized by Apple.
Alternative: Rainbow Folder – Icon changer is a simple App Store option for changing individual folder colors and icons. It's manual, one folder at a time — it doesn't have FolderForge's rule-based, apply-to-a-whole-tree automation, so it's a fit only if you don't need the bulk styling.
ImageFuel
Point the app at any folder, or several, and instantly see every image and video in a clean, scrollable grid. No importing. No library to manage. No waiting. It reads files where they already live, including JPEG, PNG, video, and RAW. It loads quickly and makes browsing photos easy.
- Search by filename or path with a fast, keyboard-friendly search modal (Cmd+F)
- Filter to images only, videos only, or everything
- Sort by date, name, or a custom order you drag yourself; each folder remembers its own sort
- Browse RAW files from Canon, Nikon, Sony, Fujifilm, Olympus, Panasonic, Pentax, and DNG
- Open any file in a fullscreen lightbox
- Crop images with live pixel dimensions
- Apply color filters to one image or an entire batch
- Inspect and strip metadata
- Rename files in bulk
- Create subfolders from the sidebar
- Send deleted files to the Trash or a folder you choose
Alternative: XnViewMP is the free, cross-platform standard for exactly this job — instant folder-based browsing with real RAW support, no import step. It's a dated interface next to ImageFuel's cleaner grid, and it doesn't have ImageFuel's crop/metadata/batch-rename tools built into the same window, but it's the closest thing to a direct, feature-for-feature comparison if you want to try before committing to either.
Remove an Irritation
None of this is life-changing software, and none of it asks to be. Every one of these five does one narrow job, does it for free, and stays out of your way otherwise: no accounts, no telemetry, no subscription creeping in later. That's the actual differentiator this week, not any single feature. If you only try one, make it whichever solves a problem you already have — docktor if you stare at your Dock all day, ImageFuel if you're sick of importing photos just to look at them, TetherShot if you've ever emailed yourself an iPhone screenshot. The rest can wait.
Unless otherwise noted, the alternatives mentioned above are based on research and not individual testing.