Privacy Policy
Last updated on September 30, 2025
Introduction
This Privacy Policy explains how Line Graph Maker collects, uses, and protects your information when you use our free online chart creation tool. Line Graph Maker is designed with privacy in mind: all chart creation and data processing happens entirely in your browser, and we do not collect or store your chart data on our servers. If you have questions, contact us at [email protected].
Information We Collect
We collect minimal information: (1) Usage analytics (pages viewed, browser type, device information, IP address, timestamps) through privacy-respecting analytics tools to understand how our service is used and improve it; (2) If you choose to create an account for premium features: account information (name, email, authentication provider data); (3) Technical data such as browser preferences and local storage settings to preserve your chart customization preferences across sessions; (4) If you purchase premium features: transaction information processed by our payment provider (we do not store credit card details).
How We Use Information
We use collected information to: operate and improve the chart maker service; analyze aggregated usage patterns to enhance user experience; provide customer support when requested; process payments for premium features if applicable; protect against fraud, abuse, and security incidents; comply with legal obligations; and communicate service updates or respond to inquiries. Your chart data (the numbers, labels, and customizations you create) is processed entirely in your browser and is never transmitted to our servers unless you explicitly choose to save it using a premium account feature.
Information Sharing
We do not sell your personal information. We share information only with: service providers that help us operate the platform (hosting, authentication, analytics, payment processing) under strict data protection agreements; payment processors to complete transactions; authentication providers when you choose to sign in via OAuth; law enforcement or regulatory authorities when required by law; and parties involved in a business transfer such as merger or acquisition, where successor entities must honor this privacy policy.
Data Retention
Analytics data is retained in aggregated form for operational and improvement purposes. If you create an account, we retain your account information as long as your account is active or as needed to provide services. You may request deletion of your account at any time. Your chart data created without an account exists only in your browser's local storage and can be cleared at any time through your browser settings. Backup copies may persist for a limited period for disaster recovery purposes.
Security
We implement industry-standard security measures including HTTPS encryption for all data in transit, secure authentication practices, regular security updates, and access controls. Since your chart data is processed locally in your browser, it never leaves your device unless you explicitly save it to an account. However, no method of transmission or storage is 100% secure. We recommend keeping your account credentials safe and clearing sensitive data from your browser cache if using a shared computer.
Your Rights
Depending on your location, you may have rights to access, correct, delete, or export your personal data; object to or restrict certain processing; withdraw consent; and lodge complaints with supervisory authorities. California residents have rights under the CCPA/CPRA including the right to know what personal information is collected, opt-out of sales (we don't sell data), and request deletion. EU/UK residents have GDPR rights including data portability and the right to be forgotten. To exercise your rights, contact [email protected] with your request. We may verify your identity before processing requests.
Cookies and Local Storage
We use essential cookies and browser local storage to provide core functionality such as saving your chart preferences, theme settings, and session information. Analytics cookies may be used to understand usage patterns. You can control cookies through your browser settings, though blocking essential cookies may prevent some features from working. We respect Do Not Track signals and applicable legal requirements regarding consent. Your chart data stored in local storage remains private and is not accessible to us.
Third-Party Services
Our service may integrate with third-party providers for hosting infrastructure, content delivery networks (CDN), authentication services, payment processing (such as Stripe), and privacy-respecting analytics. These providers operate under their own privacy policies. We share only the minimum information necessary to operate the service. Chart rendering libraries run entirely in your browser and do not transmit your data to external servers.
Children's Privacy
Line Graph Maker is a general-audience tool and is not specifically directed to children under 13 (or the applicable age in your jurisdiction). We do not knowingly collect personal information from children. If you believe a child has provided personal information through our service, please contact [email protected] so we can take appropriate action to delete such information.
Changes to this Policy
We may update this Privacy Policy periodically to reflect changes in our practices, technology, legal requirements, or other factors. We will post the updated policy on this page with a revised "Last updated" date. For material changes, we may provide additional notice through the service or via email if you have an account. Continued use of the service after changes indicates acceptance of the updated policy.
Contact Us
For privacy inquiries, data requests, or questions about how we handle your information, please email [email protected]. We will respond to your inquiry as promptly as possible.
Need clarification?
Email [email protected] for any questions about this Privacy Policy or your data rights.