A fast, offline-first tracker for following a structured movement practice — and logging the rest of your day — entirely on your own device.
CosmicWorkOut is a personal training notebook, not a fitness product. No account, no backend, no sync, no ads. You open it, log what you did in a couple of taps, and get on with your life. Everything you record stays on your device.
Most fitness apps are either too simple (a notes app) or too complex (a gym-management platform), and almost all of them assume one kind of training and an always-on connection. CosmicWorkOut aims for the underserved middle: structured, multi-week programs with real flexibility, that work offline, and treat each new movement type as configuration rather than a rewrite.
The one friction it refuses to add: logging what you just did should take under five seconds, one-handed, without thinking.
flowchart LR
P["Structured practice<br/>Strength · Belly Dance"]
A["Activities<br/>runs, sports, yoga"]
H["Habits + mood"]
M["Health metrics<br/>weight · blood pressure"]
P --> Hist[History calendar]
A --> Hist
H --> Hist
M --> Hist
Hist --> Ins[Insights charts]
classDef practice fill:#3b3f8c,stroke:#23264f,color:#ffffff;
classDef quick fill:#1f6f6f,stroke:#0f3a3a,color:#ffffff;
classDef habit fill:#7a4f9e,stroke:#46295c,color:#ffffff;
classDef health fill:#9a6a1f,stroke:#5c3f12,color:#ffffff;
classDef view fill:#2f7d4f,stroke:#1a472d,color:#ffffff;
class P practice;
class A quick;
class H habit;
class M health;
class Hist,Ins view;
- Follow structured programs across more than one Discipline — Strength and Belly Dance ship today, each with built-in course programs you can run or copy and customize.
- Log sessions with one tap — strength sets remember your last weight; dance routines track sections and moves.
- Quick-log activities — runs, walks, sports, yoga, and more, with duration and intensity.
- Track daily habits and mood — water, reading, meditation, a −5…+5 mood check-in, plus your own.
- Track health metrics (optional, off by default) — weight and blood pressure.
- Review your history on a calendar and see trends in the Insights charts.
- Own your data — works fully offline, installs as a PWA, and exports a complete JSON backup you can restore anytime.
npm install
npm run dev # http://localhost:5678For the full script list, project layout, and conventions, see the Dev Guide.
- New to the app? Read How It Works for the mental model.
- Want the full picture? The complete project wiki lives in docs/ — vision, architecture, requirements, per-feature decisions, and the glossary.
CosmicWorkOut is built with Svelte 5 + SvelteKit and stores everything in IndexedDB + localStorage. See the Tech Stack for details.