PeakFlow
Mac-level productivity tools for Windows. six tools that run from the system tray.
Download · Website · Blog
FocusDim ... dims everything except the active window
Liquid Focus ... Pomodoro timer with webcam focus detection
ScreenSlap ... full-screen meeting alert with one-click join
What's in it
| Tool | What it does |
|---|
| FocusDim | Dims every window except the one you're working in. Multi-monitor. |
| QuickBoard | Clipboard manager. Stores 100+ items, full-text search, auto-paste. |
| Liquid Focus | Pomodoro timer with Todoist integration and webcam focus detection. |
| SoundSplit | Per-app volume sliders with real-time VU meters. |
| ScreenSlap | Full-screen meeting alerts from Google Calendar. One-click join for Zoom, Meet, Teams, Webex. |
| MeetReady | Camera and mic check before meetings. Shows video preview, mic levels, lighting quality. |
| Dashboard | Hub that launches everything else. Install only the tools you want. |
FocusDim and SoundSplit use Win32 APIs directly through FFI (koffi), not Electron overlays. The webcam focus tracker runs TensorFlow.js face detection on-device. Nothing leaves your machine.
Tech stack
- Electron 33 + React 19 + TypeScript 5.7
- Vite 6 via electron-vite
- Tailwind CSS 4
- koffi (FFI for Win32:
GetForegroundWindow, DwmGetWindowAttribute, SendInput)
- TensorFlow.js + BlazeFace (on-device face detection)
- PowerShell sidecar for WASAPI audio control (SoundSplit)
Setup
git clone https://github.com/inchwormz/peakflow-electron.git
cd peakflow-electron
npm install
Copy the env template and add your own API credentials:
cp .env.example .env
You need a Todoist app and Google OAuth client if you want calendar/task integrations. Both use PKCE, so no client secret is needed for Google. The Todoist secret goes in .env.
Start the dev server:
npm run dev
Build
npm run build:win # NSIS installer → release/
npm run build:unpack # Unpacked build for testing → release/win-unpacked/
npm run typecheck # Check types (main + renderer)
npm run lint # ESLint
Project structure
src/
├── main/ # Electron main process
│ ├── services/ # Business logic per tool (focus-dim.ts, clipboard.ts, etc.)
│ ├── native/ # Win32 FFI bindings
│ ├── security/ # Trial and licensing
│ └── sidecar/ # PowerShell audio bridge
├── preload/ # contextBridge API
├── renderer/ # React UI
│ └── src/tools/ # One component per tool
└── shared/ # IPC types and tool definitions
Contributing
Open an issue before submitting a PR. Bug reports and feature requests are welcome.
If you're adding a new tool, follow the existing pattern: service in src/main/services/, IPC channels in ipc-handlers.ts, React component in src/renderer/src/tools/.
License
GPL v3. See LICENSE.
Free to build and run from source. The code is open because PeakFlow touches your screen, mic, and clipboard. You should be able to read what it does.
If you want to support the developer, grab the installer at getpeakflow.pro:
- $6.99/month ... all 7 tools, cancel anytime
- $9.99 ... one tool, yours forever (v1)
- $49.99 ... all 7 tools, yours forever (v1)
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