Privacy

What stays in your browser

Calculations run in your browser. Entering values, calculating, saving history, changing calculator units or theme, importing PhaseGauge JSON, and exporting CSV or JSON do not upload your calculation data. Browser storage holds your settings and up to 200 recent, unpinned calculations plus 100 pinned calculations. Your theme preference is stored separately. If stored data cannot be read or validated, PhaseGauge attempts to preserve a local recovery copy and keeps any valid history it can recover.

Shared and diagram links

Shared calculation links contain the selected calculation's input mode, two input values, and units. Notes and other history records are not included. Open full diagram includes pressure, temperature, enthalpy, and entropy in the URL; switching diagrams or diagram units preserves these parameters. Opening either kind of link sends its URL to the hosting service. These URLs may also remain in browser history. After successfully loading a shared calculation, PhaseGauge removes its calculation parameters from the address bar. This does not undo the original request. Do not open or share links containing sensitive calculation data.

Aggregate traffic measurement

PhaseGauge uses Web Analytics for cookieless, aggregate traffic measurement. Before sending each analytics event, the app removes the query string and fragment from its page URL field. Input fields, results, and history are not added to these events. Traffic measurement may also include referral, device, browser, and approximate location information. This URL redaction does not remove calculation URLs from hosting requests or other request metadata. PhaseGauge does not add advertising or session-replay scripts.

Durability

Browser storage is not a backup. Clearing site data removes saved history, and private browsing or browser storage policies may limit how long it is kept. Export important calculations as JSON for later import, or CSV for spreadsheet use. JSON preserves the exported records without display rounding. Theme preferences and local recovery copies are not included.

Delete

Export important calculations and download any recovery copies before deleting local data. After confirmation, Delete all local data removes PhaseGauge history, settings, theme preferences, and recovery copies from this browser. Deletion cannot be undone within the app. If storage cannot be fully cleared, the page will report that some data may remain. Previously downloaded files and browser history are not removed.