Privacy Policy

This policy explains what personal data imagetolatex (imagetolatex.com, "we", "us") collects and how we use it.

What we collect

• Account details: your name and email address. If you sign in with Google, we also receive your Google profile name, email address, and profile picture.
• Password: stored only in hashed form by our sign-in system.
• Sign-in sessions: the IP address and browser information of each signed-in session, used to keep you signed in and protect your account.
• Sign-up information: the IP address, language, and referral source (the utm_source value of the link you arrived from) recorded when you create an account.
• Images and documents you convert: formula screenshots, photos, handwriting, PDFs, Word and LaTeX files you upload, and the results we make from them (LaTeX, MathML, Word, Markdown, Excel and image files).
• Conversion records: for each recognition or conversion we record its type, status, page count, credits used and the provider that handled it, so we can show your history, refund failed jobs and account for our costs.
• Refused or failed requests: when a recognition or conversion is refused or fails, we record the reason, the message you saw, the size and fingerprint of the image, and which provider was tried, so we can find and fix the problem.
• Purchases you start: with each order we keep which page and prompt led you to the plans, whether you came back from checkout without paying, and the reason and note you give if we ask why. We use this to fix what stops people from buying; it stays with the order.
• Free recognition limits: if you recognize formulas without an account, we count your tries against the daily and monthly limits with a salted hash of your IP address, a browser identifier stored in a signed cookie, and a device fingerprint computed in your browser. We do not link these to your name or email address.
• How you use the pages: Microsoft Clarity records clicks, scrolling and page content as session recordings and heatmaps, with your formulas, images, document names and typed text masked. See "Session recordings" below.

How long files are kept

Images you submit for formula recognition (screenshots, photos, handwriting and multi-formula pages) are stored privately for 30 days. We use them only to check recognition quality and fix errors, and then they are deleted automatically. If you delete your account, your formula images are deleted at once.

Documents you upload for conversion are deleted from our storage within 1 hour. Results are kept for 24 hours so you can download them again, then deleted.

We do not use your images, documents or formulas to train AI models. Conversion records without the files are kept with your account while it exists. Records of refused or failed requests are deleted after 30 days.

Security checks

Sign-up, password reset and free formula recognition use Cloudflare Turnstile to tell people from automated traffic. Turnstile processes information about your browser and device under Cloudflare's privacy policy.

Cookies

We use cookies that are needed to keep you signed in, to apply the free recognition limits, and to remember the referral source during sign-up, plus one cookie that stores your analytics choice. Microsoft Clarity sets its own cookies, described under "Session recordings" below. We do not use advertising cookies.

Google Analytics runs only after you choose "Allow analytics". It then sets its own cookies and receives anonymous usage statistics: pages viewed and product actions such as recognizing a formula, copying LaTeX or MathML, exporting to Word, starting a document conversion, exporting from the LaTeX editor, signing in, or starting a checkout. Google Analytics never receives your images, documents, formulas or account details. Google signals and ad personalization are turned off. You can change your choice at any time with the "Analytics choices" button at the bottom of the page; choosing "Only necessary" stops Google Analytics and removes its cookies. That choice does not cover the session recordings described next.

Session recordings (Microsoft Clarity)

We use Microsoft Clarity to see where the site is confusing or broken, for example where a conversion fails or a button is missed. Clarity runs on every page except the admin area and pages whose link carries a one-time code: password reset, email verification, the sign-in callback and the account-deletion confirmation link. It runs without asking for your choice; the "Analytics choices" button controls Google Analytics only.

What it records: clicks, taps, scrolling, mouse movement, text selection and the content of the pages you see, which Clarity turns into session replays and heatmaps. It also records technical details such as the page address, browser, device, screen size, page errors and loading times. Your browser sends this to Microsoft, so Microsoft also receives your IP address.

What is masked: masking happens in your browser, so masked content is never sent to Microsoft. Clarity always masks what you type into input boxes and text areas (including the LaTeX you edit) and drop-down menus, and it masks numbers and email addresses shown on the page. We also mark the following for masking: the formula images you add, recognition results (the LaTeX and its rendered preview), the formula preview in the LaTeX editor, and the names of documents you convert. A recording shows where you clicked and that a result appeared, but not the formula. Other text on the page is not masked: for example, your name in the account menu can appear in a recording.

Cookies: Clarity sets _clck, which keeps a random Clarity user ID for this site for 1 year, and _clsk, which joins your page views into one recording for 1 day. It may also use Microsoft cookies on Microsoft's own domains (CLID, MUID, MR, SM and ANONCHK), listed in Microsoft's Clarity cookie list. For visits from the European Economic Area, the United Kingdom and Switzerland, Microsoft says Clarity does not set cookies without a consent signal. We do not send one, so on those visits Clarity runs without cookies and features that rely on them, such as joining pages into one recording, may be limited.

How long it is kept: Microsoft keeps recordings for 30 days. Recordings we mark as favorites, and a random sample Microsoft selects, are kept for up to 9 months. Microsoft handles this data under the Microsoft Privacy Statement.

To stop session recordings, block clarity.ms with your browser's tracking protection or a content blocker.

Who processes data for us

• Cloudflare: hosting, private file storage, background processing and security checks.
• Neon: our database.
• Resend: account emails such as email verification and password reset.
• Mathpix: recognizes handwritten formulas, multi-formula images and documents, and converts documents to Word, LaTeX, Markdown and Excel. It receives the image or document you submit and nothing about your account.
• Google (Gemini API) and APIMart: recognize single printed formulas. Requests normally go through APIMart, which passes them to Google's Gemini models; if APIMart is unavailable, Google's Gemini API handles them directly. They receive the formula image and nothing about your account.
• Mistral AI: may be used as a backup for document recognition. It receives the document you submit and nothing about your account.
• Google: sign-in, only if you choose to sign in with Google; Google Analytics, only if you allow analytics.
• Microsoft: session recordings and heatmaps (Microsoft Clarity) on the pages described under "Session recordings", with the content listed there masked.
• Waffo Pancake (Waffo.com Limited): our Merchant of Record for payments. You enter your payment details on Waffo Pancake's checkout, and we never receive or store your card number. Waffo Pancake shares with us what we need to add your plan or credits and to handle cancellations and refunds: your email address, the product, amount and currency, order, payment and subscription IDs, billing period dates and payment status.

We do not sell your personal data.

Your choices

You can update your profile in your account settings, and delete your account in Settings → Security. When you delete your account, we delete it at once with your sign-in methods, credits, conversion history and stored formula images. We keep a keyed hash of your email address, which cannot be turned back into the address, so the same address does not receive the free sign-up credits twice. Session recordings are not linked to your account, so they are not deleted with it; Microsoft deletes them on the schedule under "Session recordings". To access or correct your personal data, email us at support@imagetolatex.com.

Children

imagetolatex is not directed to children under 13, and we do not knowingly collect their personal data.

Changes

We may update this policy. The date at the top shows the latest version.