Tiny apps. Ordinary files.

Build one focused app, keep its interface and data together, and hand the finished .slop to anyone without running a server.

Create your first slop Download hitSlop

hitSlop is a native home for small, personal web apps. A .slop is a document you can open, move, duplicate, share, commit, and keep. Its interface, local data, media, preview, and theme travel together on your Mac.

The app owns the interface. The hitSlop host owns durable JSON, named media, export, and native window behavior. Published templates contain no personal data and need no hosted backend.

Make a slopStart with the supported Svelte template and build a working counter.

Shape the windowSet identity, discovery metadata, initial size, transparency, and native behavior.

Style the objectDefine a typed theme, structural styles, and responsive behavior.

Design its outputCreate live Finder icons, Quick Look previews, and clean PNG or PDF exports.

Use a custom silhouetteTurn an exact-size RGBA PNG into a native backing and click-through mask.

Model data and mediaUse TypeBox JSON plus named images and files in the writable document.

Edit an installed slopSafely change a document with an editor or LLM.

The supported path today

The first authoring path is Bun + Svelte 5 + JSON. The runtime package is framework-neutral, but the CLI starter gives new apps one maintained path with typed schemas, typed theme variables, local persistence, and export-ready components.

Native testing and persistence require hitSlop on Apple silicon with macOS 14 or newer. Browser preview is available anywhere Bun can run, but its data is disposable. SQLite storage, iOS, and iCloud sync are coming later.

Source and document are different things

Your source project contains Svelte components, schema.ts, theme.ts, and development dependencies. bun run build turns it into a source-free dist/<slug>.slop template.

When someone opens that template, hitSlop creates a writable document. Personal JSON, media, and theme overrides live only in the document’s stores/ directory. Learn the boundary in How .slop files work.