Last Updated: July 19, 2026 | Effective Date: July 19, 2026
This Privacy Policy describes how Fractalyst ("we", "us", or "our") collects, uses, shares, and protects information when you use the PineOptimizer browser extension ("the Extension"). We are committed to protecting your privacy and handling your data transparently in compliance with the Chrome Web Store Developer Program Policies, GDPR, and CCPA.
Privacy Summary
PineOptimizer is a free, open-source extension that processes all TradingView data locally on your device. No login or account is needed. No personal data is collected. Your strategy parameters, backtest results, and trading data remain completely local and are NEVER transmitted to our servers.
TradingView Data Disclosure
The Extension reads data from TradingView pages (strategy parameters, backtest results, performance metrics) to perform optimization. This data is processed entirely on your local device and is NEVER transmitted to our servers or any third party. We do not collect, store, or have access to your TradingView trading data.
1. Data Collection
1.1 Data We Collect
We do not collect any personal information. The Extension operates entirely on your local device. No login or account is needed.
Data Type
Collected
Storage
Purpose
Personal Information (name, email, address, etc.)
NO
N/A
N/A
Extension Settings
YES
Local Only
Remember your optimization preferences
Optimization Results
YES
Local Only
Store backtest results for analysis
Diagnostic Data (selector failures)
YES
Local Only
Detect TradingView UI updates and notify user
1.2 Data We Do NOT Collect
Data Type
Status
Email addresses or account information
Never Collected
Account login credentials
Never Collected
TradingView credentials (username/password)
Never Collected
TradingView trading data or strategies
Never Transmitted
Browsing history or activity
Never Collected
Financial information or account balances
Never Collected
Device identifiers or IP addresses
Never Collected
Cookies or tracking pixels
Never Used
2. TradingView Data Handling
Important Disclosure
This section explains exactly how the Extension interacts with TradingView data.
2.1 What Data is Read from TradingView
Strategy Parameters: Input values from the strategy settings panel
Backtest Results: Performance metrics displayed in the strategy tester
Symbol & Timeframe: Current chart symbol and timeframe
Strategy Name: Name of the loaded Pine Script strategy
2.2 How This Data is Processed
All TradingView data is processed entirely on your local device
Data is used only for optimization calculations within your browser
Results are stored in your browser's local storage
This data is NEVER transmitted to our servers
This data is NEVER shared with third parties
3. How We Use Your Data
3.1 We Use Data For:
Extension Settings: Saving your optimization preferences locally
Optimization Results: Storing backtest results for your analysis locally
Session Management: Maintaining state during optimization runs
3.2 We Do NOT Use Your Data For:
Advertising or marketing purposes
Selling to third parties
User profiling or behavioral tracking
Training machine learning models
Any purpose beyond extension functionality
4. Data Sharing
We do not sell, rent, trade, or share your personal information with anyone.
Since all data is stored locally on your device, there is no data sharing with third parties, service providers, or external servers.
5. Storage & Security
5.1 Local Storage
Settings and results stored via chrome.storage.local (browser-local, never synced to cloud)
Data never leaves your device
Clear anytime via Extension's "Clear All Data" function or by uninstalling
5.2 Security Measures
All processing happens locally in your browser
No network connections to external servers
No remote code execution
Minimal permissions principle
6. Permissions Justification
The Extension requests only the minimum permissions necessary for its functionality:
Permission
Justification
Data Access
activeTab
Interact with TradingView page when you click the Extension icon
Current tab only, on user action
storage
Save settings and optimization results locally in your browser
Extension data only, local storage
Host: *://*.tradingview.com/*
Read strategy parameters and backtest results from TradingView interface
Page DOM only, data stays local
7. Data Retention
Data Type
Retention Period
Deletion Method
Local settings & results
Until cleared or Extension uninstalled
"Clear All Data" button or uninstall
8. Your Rights
You have the following rights regarding your data:
Access: All your data is stored locally and accessible to you
Correction: Modify settings directly in the Extension
Deletion: Clear all data via "Clear All Data" button or uninstall the Extension
Portability: Export your data using the Extension's export features
Uninstall: Remove Extension to delete all local data immediately
9. GDPR Compliance (EU Users)
For Users in the European Economic Area
9.1 Legal Basis for Processing
Since we do not collect personal data, GDPR processing requirements do not apply to server-side processing. Local data processing is performed on your device under your control.
9.2 Your GDPR Rights
Since all data is stored locally on your device, you have complete control:
Right to access - Your data is on your device
Right to erasure - Uninstall to delete immediately
Right to portability - Export features available
Right to lodge a complaint with a supervisory authority
The Extension does not make automated decisions about you. Optimization algorithms (Bayesian, TPE) process TradingView data locally to assist your analysis, but all trading decisions remain entirely under your control. The Extension is a tool that provides recommendations; it does not execute trades or make decisions on your behalf.
10. CCPA Compliance (California Users)
For California Residents
10.1 Your CCPA Rights
Right to Know: We do not collect any personal information
Right to Delete: Uninstall Extension to delete all data
Right to Opt-Out: We do not sell personal information
Right to Non-Discrimination: Equal service regardless of privacy choices
10.2 Do Not Sell My Personal Information
We do not sell personal information. We have not sold personal information in the preceding 12 months.
11. Children's Privacy
The Extension is not intended for use by individuals under the age of 18. We do not knowingly collect personal information from children.
12. Changes to This Policy
We may update this Privacy Policy from time to time. We will notify users of material changes by:
Updating the "Last Updated" date at the top of this policy
Displaying a notice in the Extension for significant changes
Continued use of the Extension after changes constitutes acceptance of the updated policy.
13. Contact Us
If you have questions, concerns, or requests regarding this Privacy Policy or our data practices: