tsmap in the browser¶

The browser version of tsmap is available at telecasterer.github.io/tsmap/app/.

It uses a WebAssembly build of the same Rust parser as the desktop app. Files are parsed entirely in your browser — nothing is sent to a server. Parsing runs in a background Web Worker, so the interface stays responsive even while a large file loads.

Opening files¶

Click Open file to pick one or more files from your device, or drag and drop files anywhere in the window. Multiple files are loaded as a batch and merged into a single gallery, with a rename step to label each wafer.

For STDF and ATDF files with more than 200 tests, a test selector overlay appears before parsing — pick which tests to import, then click Import. A Filter tests… button in the toolbar lets you change your selection at any time after load.

Supported formats¶

All four formats are supported in the browser:

STDF / ATDF — parsed directly from binary/text bytes via WASM
CSV / JSON — column mapping overlay appears before rendering; the mapping is saved per column layout and restored automatically next time
Gzip (.gz) — decompressed in-browser using the native DecompressionStream API
Zip (.zip) — extracted in-browser using fflate

Differences from the desktop app¶

Feature	Browser	Desktop
File parsing	WASM in a Web Worker (same logic)	Native Rust (off-thread)
File picker	Browser dialog	Native OS dialog
Last used directory	—	Remembered between sessions
Drag and drop	Yes	Yes
PNG export	Browser download	Native save dialog
HTML reports	Opens in new tab	Writes to temp file
Zip extraction	In-browser (fflate)	Rust (native)
Offline use	Yes (once loaded)	Yes

Browser requirements¶

Any modern browser with WebAssembly and DecompressionStream support — Chrome 80+, Firefox 113+, Safari 16.4+, Edge 80+.

Running locally¶

bash git clone https://github.com/telecasterer/tsmap cd tsmap npm install npm run dev:web # opens at http://localhost:5301

Requires Node 22+ and Rust (for rebuilding the WASM parser — not needed just to run the dev server).