Cookies Policy

What are cookies and local storage?

Cookies are small text files that websites store on your device. "Local storage" and "session storage" are similar browser mechanisms that can store more data than cookies and don't expire automatically (localStorage) or expire when the browser tab closes (sessionStorage).

SwiftCalculators primarily uses localStorage and sessionStorage rather than traditional cookies. We use these to keep you signed in and remember your preferences across visits.

What we store and why

localStorage (persists across browser sessions)

Key	Purpose	Expiry	Type
sc_token	JWT session token — keeps you signed in with "Remember me" active	30 days	Functional
sc_user	Cached user profile (name, avatar) for display without an API call	30 days	Functional
sc_remember_email	Pre-fills the email field on the login page when "Remember me" is checked	Persistent	Convenience
sc_theme	Your chosen light/dark mode preference	Persistent	Preference
sc_history	Your recent calculation history (when not signed in) — never sent to our servers	Persistent	Convenience

sessionStorage (cleared when the browser tab closes)

Key	Purpose	Type
sc_token	JWT session token when "Remember me" is NOT checked — expires with the browser tab	Functional
sc_user	Cached user profile for the current session	Functional
sc_redirect_after_login	Remembers where to send you after login (e.g., the page you were trying to access)	Functional

Cookies (actual HTTP cookies)

Name	Set by	Purpose	Type
__cf_bm	Cloudflare	Bot detection and management — required to protect the site against automated abuse. Contains no personal information.	Security
(none others)	—	We set no other cookies	N/A

What we do NOT use

SwiftCalculators does not use:

• Google Analytics, Google Ads, or any Google tracking cookies
• Facebook Pixel or any Meta tracking
• Any advertising network cookies
• Cross-site tracking or fingerprinting scripts
• Any third-party analytics tools that set their own cookies

Our site is intentionally free of third-party tracking scripts.

How to control and delete browser storage

Clear everything

You can clear all localStorage, sessionStorage, and cookies through your browser's settings. This will sign you out and reset all preferences.

• Chrome: Settings → Privacy and security → Clear browsing data → Cookies and other site data
• Firefox: Settings → Privacy & Security → Cookies and Site Data → Clear Data
• Safari: Settings → Privacy → Manage Website Data → Remove All
• Edge: Settings → Privacy, search, and services → Clear browsing data

Sign-out clears session data

Signing out of SwiftCalculators removes sc_token and sc_user from both localStorage and sessionStorage. Your theme preference and "remember email" data remain until you clear them manually or delete your account.

Delete your account

Deleting your account (via Dashboard → Delete account) removes all server-side data and clears your local session storage.

Updates to this policy

We may update this Cookies Policy if we change what we store or why. We'll update the date at the top of this page when we do.