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Terms & Privacy

Last updated 23 September 2026.

What happens to your transcript

When you upload a PDF, it is opened and read inside your own browser tab, by code that came with this page. Nothing is transmitted anywhere while that happens, and it works with your network disconnected — which is the easiest way to check the claim for yourself.

What the planner keeps afterwards is the result of reading the file: your course codes, the terms you took them in, and their titles. That text is saved in your browser's own storage (localStorage) so your plan is still there tomorrow. It stays on that one device, in that one browser. The planner cannot read it from anywhere else, and neither can we — we never receive it.

The PDF file itself is not saved. Only its file name is kept, so the upload panel can show you which file it read.

Deleting it

Open Upload transcript and click Clear uploaded data. That removes everything read from your transcript from this browser. Clearing your browser's site data for this page does the same thing, and so does using a private window, which forgets everything when you close it.

What does leave your device

Four things, and none of them involves your transcript:

• Loading the page. The published copy is served as static files by Cloudflare, at caltech-scheduler.eloise-zeng.workers.dev. Like every website, the host sees the ordinary request — your IP address, the page you asked for, the time — in its own logs. Opening the files from your own computer instead skips even this: the planner works offline, except Google Calendar sync, which works only on the published site.
• Counting the visit. The published copy loads Google Analytics, which tells us how many people open the planner and which pages they look at. It records the visit, not the person: we have switched off Google Signals and ad personalisation, so the visit is not joined to a Google advertising profile, and there are no ads on this site. Nothing read from your transcript — no course, grade, term, or file name — is ever sent to Analytics, because that data never leaves your browser's storage at all. Google receives what any site's analytics receives: an IP address, a browser and device description, and which page was opened when. Its own privacy policy covers what it does with that. A browser with tracker blocking, or "Do Not Track" honoured by an extension, simply does not load it — the planner works exactly the same either way. A copy opened from your own disk never loads Analytics at all.
• The Feedback button, if you use it. Sending a report attaches the term you are looking at, the list of courses you have selected in that term, and your browser's user-agent string, so the bug can be reproduced. It never includes your transcript or your past terms. Depending on how the site is configured, the report may be posted as a public issue on GitHub — so treat anything you type there as public. Nothing is sent unless you press Submit.
• Google Calendar sync, if you use it. Pressing Sync to Google Calendar sends that term's classes' meeting times, rooms and instructors, the final exams for those classes once the registrar has posted them, and the academic calendar's dates to Google, into one calendar this planner creates in your account. Each term goes into its own calendar — “Caltech FA 2026-27”, “Caltech WI 2026-27” and so on — and syncing one term never reads or changes another term's. Dates that have already passed are left alone: a sync neither adds them nor takes away what an earlier one wrote. Google's sign-in asks you first; the permission it grants lets this page see and change only calendars it created itself, never your others. The sign-in lasts about an hour, is held in the page's memory and is forgotten when you close the tab, so a later visit signs in again. Google remembers that you agreed; you can withdraw that at any time at myaccount.google.com/connections. The Download .ics button beside it sends nothing anywhere: the file is made in your browser.

How accurate this is

Course listings, meeting times, and requirement rules are copied from Caltech's public catalog and schedule pages and refreshed periodically. They can be out of date, and the catalog itself changes. Past terms shown on the weekly grid are drawn using this year's meeting times for the same quarter, because Caltech does not publish past-year schedules — the shape of the week is right, the exact hours may not be.

Requirement progress here is an interpretation of the catalog, not a decision by anyone who can grant a degree. Before you register, drop, or count on a requirement being satisfied, confirm it with your adviser, your option representative, and the Registrar's Office. If this planner and the registrar disagree, the registrar is right.

Who runs this

This is an independent student project. It is not affiliated with, endorsed by, or operated by the California Institute of Technology. Course descriptions and requirement text quoted from the Caltech catalog remain Caltech's.

To report a mistake in the course data, a requirement that is credited wrongly, or anything on this page, use the Feedback button in the bottom-right corner of the planner. It opens a message that goes to the project's issue tracker. There is no other contact channel, and there is nobody on call.

No warranty

The planner is provided as-is, with no warranty of any kind. It may contain mistakes, it may be unavailable, and browser storage can be lost — a browser clearing site data will take your plan with it. Use the ⤓ Backup button to keep your own copy. To the extent the law allows, the authors are not liable for any loss arising from your use of it, including a missed requirement or a registration mistake.

Changes

If these terms change, the date at the top changes with them.

You do not have to take any of this on trust. Everything described above happens in code your browser downloaded and will show you: open your browser's developer tools, switch to the Network tab, and upload a transcript. You will see no request carrying it — the only requests the planner makes are for its own files, for Analytics, if you press Submit on a feedback report, for that report, and, if you press Sync to Google Calendar, for Google's sign-in and its calendar service. Or disconnect from the network entirely and upload anyway: it still works.

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