Your farm plan stays on your device

Planner data stored locally

ValleyMath stores the most recent plan for each calculator page in your browser's local storage. A plan can include machine counts, planning horizon, profession, inventory item, quality, quantity, reserved quantity, and arrival day. This data is not uploaded to a ValleyMath account or database because the site does not currently provide either one.

Local plans remain until you restore the sample, clear this site's browser data, or use a private browsing session that removes storage automatically. Blocking local storage does not prevent calculations, but the plan will not persist between visits.

Optional local save import

If you choose Load my farm, the browser reads the Stardew Valley save folder you select and extracts supported farm details on this device. The save file is not uploaded to ValleyMath. The resulting machine counts and inventory plan are stored in the same local browser storage described above.

Save parsing currently targets unmodded Stardew Valley 1.6.x. If a save cannot be read, the manual planner remains available and no file is retained by the site.

Share links

The Copy share link action encodes a plan after the # in the page address. URL fragments are not sent to the website in the normal HTTP request. Anyone who receives the complete link can still decode and view that plan, so do not share a link containing a setup you consider private.

Analytics events

ValleyMath uses Google Analytics 4 to understand whether pages and tools are useful. On a first visit, a small banner asks whether you want to allow coarse usage statistics. Until you choose, analytics and advertising storage remain denied. If you allow statistics, GA4 may receive the page path and coarse events such as planner opened, planner engaged, inventory row added or removed, result generated, methodology opened, related tool selected, share link copied, or a quick-calculator or planner result summary copied.

Analytics events do not include item names, item IDs, quantities, copied result text, full plan JSON, or the share-link fragment. A copy event records only that the action was tried, whether the browser allowed it, the page or tool mode, and—where relevant—the broad planner result status. Result value is reduced to a broad profit range. Your consent choice is stored locally in this browser so the banner does not appear on every visit. You can clear it through this site's browser data controls and choose again.

Advertising is not active yet

ValleyMath does not currently load display advertising. If Google AdSense or another network is enabled, this policy will identify the active vendors. Third-party vendors, including Google, may use cookies to serve ads based on a user's prior visits to this and other websites. Users can manage personalized Google advertising in Google's Ads Settings.

Before personalized ads are served to users in the EEA, the UK, or Switzerland, ValleyMath will use a Google-certified consent management platform where required. Ad code will not be placed inside controls, disguised as navigation, or loaded on pages without substantive publisher content.

Your choices

• Use the planner without creating an account.
• Clear local plans through the sample restore action or browser site-data controls.
• Do not use share links, or remove the URL fragment before copying the page address.
• Use browser privacy controls to restrict local storage, cookies, or analytics requests.
• Manage personalized Google ads through Google Ads Settings if advertising is enabled later.