A personal activity tracker with a GitHub-style contribution calendar.
Track daily habits, visualize progress with a heatmap, and stay on top of your goals — all locally, no account required.

Install  ·  Features  ·  Screenshots  ·  Tech Stack

Installation

Daylo runs entirely on your device — no account, no cloud, no tracking.

• Desktop app (Windows, macOS, Linux) — Download from GitHub Releases
• Docker — Self-hosted via docker compose
• From source — Clone and build

Features

• Annual heatmap view — See your entire year at a glance with a 5-level color heatmap
• Monthly detail view — Drill down into any month with activity dots per day
• Quick daily logging — Click any day to check off completed activities
• Activity management — Create, edit, and delete activities with custom colors
• Statistics — Current streak, longest streak, monthly completion rate
• Export/Import — Back up your data as JSON or CSV, restore from backup
• Offline-first — All data stays on your device, works 100% offline
• Cross-platform — Runs as a desktop app (Windows, macOS, Linux) or in the browser

Screenshots

_{Year View — See your entire year at a glance}

_{Month View — Drill down into any month}

Tech Stack

Layer	Technology
Frontend	React 19, TypeScript, Vite 7
Styling	Tailwind CSS 4
State	Zustand 5 (persisted to localStorage)
Desktop	Tauri 2
Testing	Vitest + Testing Library (unit), Playwright (E2E)
CI/CD	GitHub Actions

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Desktop App

Download the latest release for your platform from the Releases page:

Platform	File
Windows	Daylo_x.x.x_x64-setup.exe
macOS (Apple Silicon)	Daylo_x.x.x_aarch64.dmg
macOS (Intel)	Daylo_x.x.x_x64.dmg
Linux (Debian/Ubuntu)	Daylo_x.x.x_amd64.deb
Linux (Other)	Daylo_x.x.x_amd64.AppImage

Just install and open — no setup, no accounts, no internet required.

Docker

Run Daylo as a local web service with a single command. Requires Docker.

docker compose up -d

Open http://localhost:3000 in your browser.

From Source

Requires Node.js 20+.

git clone https://github.com/henfrydls/daylo.git
cd daylo
npm install
npm run dev

Open http://localhost:5173 in your browser.

To build the desktop app from source, you also need Rust:

npm run tauri:build

The installer will be generated in src-tauri/target/release/bundle/.

Development & Testing

Development

npm run dev          # Start dev server (browser)
npm run tauri:dev    # Start dev server (Tauri desktop window)
npm run build        # Build for web
npm run tauri:build  # Build desktop installer
npm run lint         # Run ESLint
npm run preview      # Preview production build locally

Testing

npm test              # Unit tests (watch mode)
npm run test:ui       # Unit tests with interactive UI
npm run test:coverage # Unit tests with coverage report
npm run test:e2e      # E2E tests (Playwright)
npm run test:e2e:ui   # E2E tests with interactive UI

Project Structure

src/
├── components/
│   ├── activities/    # ActivityForm, ActivityList, QuickLog
│   ├── calendar/      # YearView, MonthView, DayCell
│   ├── data/          # ExportModal, ImportModal
│   ├── stats/         # StatsPanel
│   └── ui/            # Button, Modal, Tooltip, Toast, Icons, etc.
├── hooks/             # useAppVersion, useFocusTrap
├── lib/               # colors, dates, dataExport utilities
├── store/             # Zustand stores (calendar, toast)
├── types/             # TypeScript interfaces
├── App.tsx
└── main.tsx

License

PolyForm Noncommercial 1.0.0 — free for any non-commercial use. Commercial use requires written permission from the author. See LICENSE.