How We Use Cookies
We use browser storage (cookies and localStorage) solely for the following purposes:
- Keeping you signed in during your session
- Storing your authentication token securely between page loads
- Preserving your user preferences within the dashboard
We do not use cookies for advertising or cross-site tracking. We use browser localStorage for product analytics (PostHog) to improve the service.
Local Storage
In addition to cookies, the FormaTeX dashboard uses browser localStorage for account display data, preferences and consented analytics. Compiled PDFs may be cached in IndexedDB, and manually entered API keys may be cached in sessionStorage. Analytics events and identifiers are transmitted to PostHog when you consent. Other browser account caches are cleared on logout in the current release. Other devices and files you download yourself require separate cleanup.
| Key | Purpose | Expiry |
|---|---|---|
| ph_* | PostHog analytics — stores pseudonymous session identity and event queue. Only set after you accept analytics cookies. | Until withdrawal or browser cleanup |
| fx-language-offer-dismissed | Remembers that you closed the offer to read a page in your browser's language, so it is not shown again. | Until cleared |
Third-Party Services
FormaTeX integrates with the following third-party services that may set their own cookies or use browser storage:
Polar.sh
When you visit the Polar.sh billing portal (accessed via the billing section of your dashboard), Polar.sh may set cookies necessary for their payment flow. These cookies are governed by Polar's Privacy Policy.
GitHub / Google OAuth
If you choose to sign in via GitHub or Google, those providers may set cookies as part of their OAuth flow. These are governed by the respective privacy policies of GitHub and Google. FormaTeX does not control these cookies.
PostHog
With your consent, FormaTeX uses PostHog for product analytics — tracking page views, feature usage, and compilation events to improve the product. PostHog stores analytics data in your browser's localStorage. Events are proxied through our own domain and processed by PostHog (US region). When signed in, events may be associated with your opaque account identifier; new identification events do not include your email. PostHog autocapture and session replay are disabled. You can withdraw consent below to stop future events in this browser. For more information, see PostHog's Privacy Policy.
Sentry
FormaTeX uses Sentry for error monitoring and performance tracking. When an error occurs in the application, Sentry captures technical diagnostic data — stack traces, browser information, and the page you were on — to help us diagnose and fix issues. We remove request bodies, personal context and arbitrary error messages before sending events. Session replay is disabled in the current release. Earlier releases enabled sampled and error-triggered replay independently of PostHog consent; historical vendor-held records are subject to separate retention and erasure review. For more information, see Sentry's Privacy Policy.
We do not integrate advertising or social media tracking scripts. Analytics (PostHog) are only active with your explicit consent.
Changes to This Policy
We may update this Cookie Policy from time to time. Changes will be reflected by an updated date at the top of this page. We will notify registered users of material changes by email.
For questions about our approach to data, please also review our Privacy Policy.
Contact
Questions about our use of cookies? Get in touch: