ClassToText

Privacy policy — ClassToText

Last updated: 8 November 2026

Downloading

Downloading needs no account and sends nothing to us. When you click Download, the extension reads the video's download link and title from the lecture page (on Webex it asks Webex for them, as you, the same request the Webex player makes) and hands the link to Chrome's download manager. The video goes straight from the university's video platform to your computer.

Transcribing

Transcribing needs an account. You sign in with a one-time code we email you. We store:

  • Your email address, to identify your account.
  • Your transcriptions: lecture title, length, status, and the address you asked us to email the transcript to. We use this to show your recent transcriptions and count your hours.
  • Your plan: your Stripe customer number, subscription status, or exam pass end date. Payments are handled by Stripe, the seller of record, who also sends receipts and handles VAT and refunds. We never see your card details.

When you click Transcribe, the lecture's download link and title are sent to our server, which passes the link to AssemblyAI (EU region). AssemblyAI downloads the recording and transcribes it. Once the transcript has been emailed to you or saved to your computer, we delete it at AssemblyAI; uncollected transcripts are deleted after 7 days. We don't keep copies of recordings or transcripts.

Emails are sent through Resend. Our server and database run on Cloudflare (database in the EU).

Feedback

When you send a message with the bug button, we receive your message, the email address you give (optional), the extension and browser version, the platform you're on (KU Leuven or Webex) and any message shown in the extension at that moment. We keep it to answer you and fix problems, and email it to the developer.

Usage counts

To know how many people use the extension, it tells our server once a day that it was opened, and each time a video is downloaded, with the platform (KU Leuven or Webex) and nothing else. If you're signed in, these counts are linked to your account; if not, they carry no identifier at all. We also record sign-ins, transcriptions and payments for your account. We don't use any third-party analytics or advertising.

Your data

To see or delete your account and data, email us at the address below. We don't sell or share your data with anyone other than the services named here.

Permissions

  • activeTab and scripting: read the lecture's download link and title on the tab where you open the extension.
  • downloads: save the video, and the transcript if you chose that, with a readable filename.
  • storage: remember your sign-in and your transcript delivery choice.
  • alarms: check every minute for finished transcripts to save, while one is pending.
  • Access to kaltura-kaf.edu.kuleuven.cloud and *.webex.com: read the download link from the KU Leuven video player (which sits in a frame from that site) and from Webex.

Contact

Questions or deletion requests: support@blockello.app