Size Chart Saver

WHAT IT DOES

Size Chart Saver is a browser extension that detects size charts on product pages and allows you to save them for later reference. When you visit a product page with a size chart, the tool detects the chart and lets you save it with a custom name. All saved charts are stored per domain and persist across sessions. You can view saved charts, delete them, or export them as JSON. The tool is ideal for online shoppers who frequently buy clothes, shoes, or other size-dependent items and want to keep size charts handy for future purchases.

WHERE IT RUNS

Size Chart Saver runs on any webpage, overlaying a floating panel that does not interfere with page content. It operates entirely in your browser as a lightweight userscript, scanning the page for size chart elements. It works on any page, whether static or dynamic, with no external dependencies. All chart data is stored locally using GM_setValue—no data is ever sent to any server.

HOW TO USE

After installation, open the floating panel by clicking the extension icon. The panel shows the current status (Enabled or Disabled) and a toggle button to enable or disable the tool. Click the "Detect Charts" button to scan the page for size charts. Detected charts appear in the "Detected Charts" section with a preview and a "Save" button. Click "Save" and enter a custom name for the chart. Saved charts appear in the "Saved Charts" section. Click "View" to see the full chart in a modal, or "Delete" to remove it. Click "Export JSON" to copy all saved charts for the current domain to your clipboard. All settings are saved per site.

REAL MECHANISM — WHY THIS WORKS

Most size chart tracking requires taking screenshots or bookmarking the page, which is inefficient and loses context. Size Chart Saver uses a DOM-scanning approach that detects size chart elements on the page. The tool searches for common size chart selectors including class names like ".size-chart", ".size-guide", ".sizing-chart", and ID patterns like "#size-chart", "#size-guide". It also scans tables that contain size-related text ("size", "measure", "fit", "cm", "inch") and identifies them as potential size charts. For each detected chart, the tool extracts the outer HTML, text content, title, and a preview snippet. When the user saves a chart, the tool stores the full HTML, text, preview, and metadata (name, domain, URL, timestamp) in GM_setValue. Saved charts are displayed in a list with view and delete options. The view feature renders the saved HTML in a modal, preserving the original chart formatting. The export function serializes all saved charts for the domain as JSON and copies them to the clipboard. This approach ensures accurate, persistent, and fully private size chart management without requiring any external services or network access.

THE PANEL

The floating panel is fully draggable and remembers its position per site, snapping to the edges of the viewport when dragged near them. You can collapse the panel to a small icon to minimize screen distraction and expand it back with a single click. The panel is resizable from the bottom-right corner, giving you more space to view charts. Press the Escape key to close the panel instantly. The panel remains open across page navigation within the same domain, maintaining your current view state. All preferences—panel position and all chart data—are saved per domain for a seamless experience.

PLEASE NOTE

Size Chart Saver requires the free BotGentz extension to be installed and enabled, as it relies on the cross-extension messaging API provided by BotGentz for DOM access permissions. The tool detects size charts using common CSS selectors and text patterns; it may not detect all size charts on all websites. Saved charts store the HTML content of the chart at the time of saving; if the chart format changes later, the saved version will not update. The view feature renders the saved HTML; ensure the content is safe before viewing. All chart data is stored locally in your browser using GM_setValue. No page content, chart data, or usage information is ever sent to any server. The extension does not read, store, or transmit any personal information. It only scans and stores size charts at your request.