Privacy Policy
RSI Overlay for TradingView — last updated 2026-08-05
Summary
This extension does not collect, transmit, or sell any personal data. It does not require an account or sign-in, and it does not access your TradingView account.
What data is accessed
To calculate RSI, the extension fetches public daily closing-price data for the symbol you configure, directly from Yahoo Finance's public chart endpoint (query1.finance.yahoo.com). This is price data only — no personal or account information is sent as part of that request.
What data is stored
The following is stored locally on your device, using Chrome's built-in extension storage (chrome.storage.local), and never leaves your browser:
- Your chosen symbol and oversold/overbought thresholds
- Whether the overlay is enabled
- The most recent RSI reading
- Where you last dragged the overlay panel to on screen
None of this data is transmitted to the developer or any third party. There is no backend server operated by this extension — the only network request it makes is the price-data fetch described above.
Permissions this extension requests, and why
- storage — to save your settings locally, as described above
- alarms — to periodically re-check the RSI value in the background
- notifications — to alert you when RSI crosses your configured threshold
- Host access to query1.finance.yahoo.com — to fetch the price data used to calculate RSI
- Content script on tradingview.com — to display the overlay panel on the chart page; it does not read, modify, or transmit any content from the page itself
Third parties
No data is shared with, sold to, or used by any third party. The only outbound request is the price-data fetch to Yahoo Finance, made directly from your browser.
Changes to this policy
Any changes will be posted on this page.
Contact
Questions or concerns: open an issue at github.com/bcdixon23-spec/rsi-overlay-extension/issues.