Cookie Policy
The cookies and browser storage powervideos uses. Essential and preference only, with no advertising or cross-site tracking.
Effective date: September 18, 2026
This Cookie Policy explains which cookies and similar browser storage powervideos uses on powervideos.dev, and why. For how we handle personal data more broadly, see our Privacy Policy.
The short version
We use only the cookies and browser storage needed to sign you in, keep the Service secure, and remember your preferences. We do not use advertising cookies, and we do not track you across other websites.
What cookies and browser storage are
Cookies are small text files a website stores in your browser. "Browser storage" (localStorage) works similarly but stays in your browser and is not sent to our servers with each request. We use both.
Cookies we use
| Name | Purpose | Type | Duration |
|---|---|---|---|
better-auth.session_token | Keeps you signed in and protects your account | Essential | 7 days, renewed while you use the Service |
better-auth.session_data | Short-lived cache of your session so pages load faster | Essential | 1 hour |
PARAGLIDE_LOCALE | Remembers whether you chose English or Chinese | Preference | 400 days |
sidebar_state | Remembers whether the dashboard sidebar is collapsed | Preference | 7 days |
On the live site, the sign-in cookies carry a __Secure- prefix, which means browsers only send them over encrypted HTTPS connections. During Google sign-in, short-lived security cookies may also be set to protect the sign-in flow; they are removed once sign-in finishes.
Browser storage we use
| Key | Purpose |
|---|---|
theme | Remembers light, dark, or system theme |
PARAGLIDE_LOCALE | Remembers your language choice |
powervideos:pending-prompt | Keeps a story you typed on the homepage so it can continue after you sign in; removed when it is used, and ignored if it is more than an hour old |
Third-party services
- Stripe. When you subscribe or buy credits, you complete payment on Stripe's checkout page, which sets its own cookies for payment processing and fraud prevention under Stripe's cookie policy.
- Google. If you choose "Sign in with Google", Google's sign-in page may set its own cookies under Google's policies.
Neither service places cookies on powervideos.dev pages themselves.
Analytics
We currently do not use analytics or advertising cookies. 【TO CONFIRM: if you add an analytics tool (such as Google Analytics, Plausible, or Umami), list its cookies here and, where required, ask for consent before setting them.】
Managing cookies
You can view and delete cookies in your browser settings, and block them for this site. Essential cookies are required to sign in; if you block them, you will not be able to use your account, but you can still browse public pages. Clearing your browser storage resets your theme and language choices.
Changes
If we start using new cookies, we will update this policy and the effective date above.
Contact
Questions about cookies? Contact support@powervideos.dev.