BantamwarePurveyors of featherweight softwareEst. 2026

Software that doesn't waste your time

Bantamweight tools that punch above their weight: zero dependencies, zero network calls, one small binary that starts before you blink and phones no one — ever.

Official weigh-in — Shattercut v1.2.2
0Dependencies
0Network calls
406 KBOn disk
92 MBRAM, playing 1080p

Main event

Tale of the tape

Shattercut, our video player, against a typical Electron app doing the same job.

Shattercut
Red corner
vs.
Typical Electron app
Blue corner
406 KB
Weight on disk
312 MBChromium ships in every box
204 MB
Memory, playing 4K
1.2 GBrenderer + GPU process
0
Third-party dependencies
1 browserChromium in a trench coat
0
Network requests at idle
Dozensupdate checks and telemetry
90 ms
Cold start to a usable window
4.2 ssplash screen included
None
Data collected
Unknowablethe privacy policy is 40 pages
Measured on an ordinary desktop. No contest.

Fighting weight

Small is a feature

The Hoover Dam intake-tower monument — a five-story Art Deco tower whose marble panel lists Flood Control, Navigation, Irrigation, Water Storage, and Power.

Smaller than (this picture of) the Hoover Dam

It took a five-story marble monument to enumerate the dam's five features — Flood Control, Navigation, Irrigation, Water Storage, Power. Shattercut ships its one feature — it cuts video — in 406 KB, no monument required. The photo straight off the camera was 821 KB — larger than the entire app — so we squashed it to 55 KB on principle.

Lighter than the tab you'd watch it in

Shattercut plays a full movie in less memory than a browser tab spends showing you a login page.

Quieter than airplane mode

There is no network code in the binary. Nothing can send telemetry, because nothing can send anything. Your files never leave your machine.

How we train

House rules

Four rules, no exceptions. They're why the numbers above are possible.

1

No dependencies

Every library is somebody else's supply chain. We compile against the operating system and nothing else — what you audit is what you run.

2

No network

If a tool doesn't need the internet, it doesn't get the internet. Nothing is sent anywhere, because nothing can be.

3

One file

No installer, no background services, no registry sprawl. Copy it to run it. Delete it and it's gone without a trace.

4

Fast is respect

We don't build in features nobody cares about. We build in speed. Cold start is measured in milliseconds — the best splash screen is none.

Tonight's lineup

The card

Shattercut app icon
Main event · available now

Shattercut

The video player. Opens anything, starts instantly, tracks nothing. Undefeated against bloat.

406 KB · Win by KO Download Shattercut
64-bit Windows · signed · timestamped
Cornerman app icon
Bout II · available now

Cornerman

Works your corner. A tray-sized watcher for the NZXT Kraken Elite — reads coolant temperature and pump/fan RPM and holds guarded fixed-duty control. No CAM, no account, no network, one small file.

53 KB · Win on points Download Cornerman
Cornerman v1.5.3 · 64-bit Windows · signed · timestamped
Roost app icon
Bout III · available now

Roost

Watches the yard. A single-window viewer for your UniFi Protect cameras — live RTSP pulled straight from the console, hardware-decoded video and audio, credentials sealed in the Windows vault. No cloud, no subscription, no phone-home. Rules the roost.

486 KB · Win by shutout Download Roost
Roost v1.0.1 · 64-bit Windows · signed · timestamped

The undercard

Cornerman vs. CAM

Cornerman, our Kraken tray tool, against the software it replaces.

Cornerman
Red corner
vs.
NZXT CAM
Blue corner
53 KB
Weight on disk
Hundreds of MBa web browser, to draw a fan curve
None
Account to run it
Sign-ina cloud account to reach your own cooler
0
Network at idle
Phones homeit is, after all, "connected"
One tray icon
Background footprint
Service + web appalways running, always watching
Instant
Cold start
Loading…for a temperature and two fans
One job
What it actually does
EverythingCornerman does the part you needed
Only one app can hold the cooler at a time. Pick the one that isn't a browser.

Working the corner

Running Cornerman

A tray tool for the 2023 NZXT Kraken Elite. No installer — four steps and you're cooling.

1

Quit NZXT CAM

Only one app can hold the cooler at a time. Close CAM — or anything else talking to it — before you start.

2

Look in the tray

Run Cornerman.exe. No window opens — it lives in the system tray, and its icon shows your live coolant temperature.

3

Click to control

Double-click the tray icon for the control panel; right-click it for profiles, manual duty, and Exit.

4

Run it at login

Optional: press Win+R, type shell:startup, and drop a shortcut to Cornerman.exe in that folder. Delete the shortcut to stop — it never adds itself.

Prelim bout

Roost vs. the Electron viewer

Roost, our native Protect viewer, against the Electron app that does the same job.

Roost
Red corner
vs.
UniFi Protect Viewer
Blue corner
484 KB
Weight on disk
Hundreds of MBElectron bundles all of Chromium
Native Direct3D 11
How it draws the video
Browser rendererChromium's compositor + GPU process
None
Runtime it needs
An entire browsera Chromium shipped per app
One process
Background footprint
Three and upmain, renderer, GPU
Instant
Cold start to a live feed
Splash, then loadboot the browser first
A camera viewer
What it actually is
A browser showing camerasthe browser does the real work
Same feeds off the same console. One of them isn't a web browser in a viewer's coat.