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Security & Privacy

Your calculations.
Private by design.

Every mathematical operation on MathTools runs locally in your web browser. Your inputs, graphs, and equations are never sent to an external math service. We keep our architecture as simple as possible to minimize the surface area for attacks and data collection.

Read the Documentation Privacy Policy

The short version

These are the six core controls that apply whether you use a tool anonymously or hold an account.

Local Execution

The math engine runs in your browser via JavaScript. No numbers are sent to a backend API to be calculated.

Encrypted in Transit

All communication with our servers (login, saving history, contact forms) is encrypted using standard HTTPS/TLS.

Temporary by Design

Guest history is held only in your browser's memory and clears on reload. Logged-in history is capped at 100 items.

Accounts Hardened

Passwords are hashed with bcrypt. Sessions use HTTP-only, secure JWT cookies to prevent XSS and CSRF attacks.

Zero Tracking

We do not use Google Analytics, advertising pixels, or third-party trackers. Your usage is not monitored.

Data Isolation

We will never sell, rent, or share your email address or saved calculation history with any third party.

1 Encryption in transit

Everything that moves between your browser and our servers is encrypted with HTTPS/TLS. This includes authentication requests, saving calculation history, and sending messages through our contact form. The application is hosted on a secure cloud infrastructure that automatically provisions and renews SSL certificates for the domain. No data is ever transmitted in plain text.

2 Data storage and deletion

  • • Guest calculations: Processed entirely in your browser's memory. If you reload the page or close the tab, the history is immediately destroyed.
  • • Account calculations: If you create an account, your recent calculations are stored in our database. We cap this at 100 items to minimize data retention.
  • • Contact form messages: When you contact us, your name, email, and message are encrypted in transit and delivered directly to our support inbox. This data is not stored in our main user database.
  • • Deletion on demand: You can clear your calculation history at any time from the Account page. If you delete your account, all associated data is permanently removed from our systems.

3 Accounts and sign-in

  • • Passwords are hashed: We use bcrypt to hash passwords before they are saved. Even we cannot see your password.
  • • HTTP-only cookies: Your session is stored using a secure, HTTP-only JSON Web Token (JWT) cookie. This prevents malicious scripts from stealing your login token via XSS.
  • • Rate limiting: Login attempts are monitored to prevent brute-force password guessing and protect account integrity.

4 Where data is processed

The MathTools calculation engine runs 100% on the client side (your browser). The server is only used for authentication, saving calculation history, and routing contact messages. The database stores only your email, hashed password, and recent calculation history. We do not log your IP address or device information.

5 What we don't do

  • • We do not use advertising trackers or Google Analytics.
  • • We do not sell, rent, or trade your personal data with any third party.
  • • We do not ask for your credit card information, because MathTools is 100% free.

Privacy questions, answered

How long are my calculations kept?
If you are using the site as a guest, your calculation history is kept only in your browser's memory and is instantly cleared when you reload the page. If you create an account, we store up to 100 of your most recent calculations to sync across your devices.
Who can see my calculations?
Only you. We do not inspect, share, or sell your calculation history. If you are a guest, the data never leaves your browser. If you are logged in, only your authenticated account can access the history.
Is the math calculated on your servers?
No. The MathTools engine runs entirely in your browser using JavaScript. No numerical data, equations, or graphs are sent to our servers to be processed.
Do I need an account to use the tools?
No, you can use all 34 calculators without an account. Creating an account is only required if you want to save your history and sync it across devices.
What do you store if I sign up?
We only store your email address, a securely hashed version of your password, and up to 100 of your recent calculations. We never store plain-text passwords.
How do I delete my account?
You can delete your account at any time from your Account Settings page. Once deleted, your email, password hash, and calculation history are permanently removed from our database.
Do you use cookies or trackers?
We do not use advertising cookies, Google Analytics, or third-party tracking scripts. We only use a single, secure, HTTP-only cookie to keep you logged in if you create an account.
Is my data used to train AI models?
No. We do not use your calculation inputs, history, or contact form messages to train any artificial intelligence models.
Which third parties touch my data?
We use a secure cloud hosting provider and a database provider to run the site. We do not share your data with any advertising, marketing, or analytics companies.
How do I exercise my privacy rights?
If you want to access, export, or delete your data, you can do so from your account dashboard. If you need further assistance, you can contact us directly at support@maths.tools.

Get in touch via support@maths.tools for anything these do not cover.

Reporting a vulnerability

If you believe you have found a security vulnerability in MathTools, please contact us immediately at support@maths.tools. We take all reports seriously, and we will investigate and patch any verified issues as quickly as possible.

For legal rules, check the Terms of Use and Privacy Policy.