Privacy Policy & Security
Your data never leaves your browser. Zero tracking cookies, zero analytics beacons, and zero server-side storage.
1. Local chart processing
Parsing CSV, TSV, JSON and pasted data, calculating scales, rendering charts, checking quality, and creating PNG, SVG, PDF, CSV and HTML exports happen inside your browser. Pasting spreadsheet data or importing a file does not upload that chart data to our servers, cloud APIs, analytics services or external storage. Loading the website itself still sends ordinary page requests to the hosting service.
2. Local browser storage
Saved charts are stored in IndexedDB, and automatically recovered drafts are stored in localStorage. Both are browser storage on your device; the site does not synchronize them to a cloud database. Clear the site’s data in your browser settings to remove them. Theme and language preferences are also stored locally.
3. Optional sharing through links
Share Link compresses your chart into the URL fragment after #chart=. That fragment is not included in the HTTP request when someone opens the page. However, anyone who receives the complete link can recover the chart data: compression is not encryption.
4. Before sharing with another service
If you send a chart link through a social sharing button, the complete link, including its chart data, is passed to the service you select. Its own privacy rules apply. Do not share confidential data unless you intend the recipient and that service to receive it.
5. Tracking cookies and third-party pixels
We do not use advertising trackers, surveillance pixels, cross-site trackers or third-party cookies.
6. Related information and contact
Read the Terms of Service for usage conditions. If you have questions about security or privacy, use the Contact page. Information you choose to send in a contact message is separate from data you enter into the chart editor.