Privacy
Last updated: 2026-05-06.
The short version
Most of what Slatework does happens in your browser. The few tools that send data anywhere send it only to a language model for processing — we don't store it, log it, or sell it.
What we collect
- Email address — only if you sign up for the newsletter. We hash it to deduplicate. You can unsubscribe in one click and we delete the record.
- Rate-limit fingerprint — when you use an AI-backed tool, we hash your IP address and time-stamp the request to prevent abuse. We don't store the request body. The hash is rotated daily.
- Feedback — only if you click the thumbs widget at the bottom of a tool page. We store the verdict (yes/no), the tool name, and your optional note. Nothing else.
What we don't do
- No accounts, no logins, no profiles.
- No third-party trackers, no pixels, no Google Analytics.
- No selling or sharing of your data.
- No storing the inputs you give to AI-backed tools (lesson plan, worksheet, marking, CEFR AI).
AI-backed tools (lesson plan, worksheet, marking, CEFR AI)
When you use one of these four tools, the text you submit is sent to Anthropic for processing. We don't keep a copy on our servers. Anthropic's data-handling policy applies.
For the marking accelerator and the CEFR AI mode specifically: please don't include a student's name or other identifying information in the input. Paste the writing only.
For slideshow image illustrations: when you generate a slideshow with the teen or adult audience profile, single-word image keywords (e.g. "classroom", "coffee") that the slideshow generator extracts from the lesson plan are sent to Pexels to fetch matching photos. No student details, lesson goals, or profile data are sent — only the keywords. Slideshows for the young learner audience use a curated illustration bundle that ships with Slatework and makes no external image request.
Student names in uploads
The marking accelerator and the CEFR AI assessor both let you upload student writing — pasted text, a Word doc, a PDF, or a photo of handwritten work. That writing often contains the student's name. Here's exactly what happens to it:
- We never store it. The file (or its extracted text) is forwarded to Anthropic's API. The response is returned to you. No copy lives on our servers, our database, or our logs.
- We never log the request body. Our rate-limit system records only an IP fingerprint, the tool name, and a timestamp — not the content you sent.
- Anthropic's data policy applies during processing. Anthropic does not train on API requests by default and processes them according to their privacy policy.
- We don't share or sell anything. Period.
- Best practice we'd suggest: if you're nervous, redact the student name with a black square in the photo, or replace it with a placeholder ("Student A") in the pasted text. Slatework works the same either way.
Profiles (optional)
Slatework lets you save tutor and student profiles in your browser's localStorage so you don't re-enter the same information every lesson. These profiles never leave your device — they're not sent to our server, not synced, not backed up by us.
Profiles are entirely optional. Slatework was designed to work without saved data and continues to work that way for users who never opt in.
Use nicknames or initials for student profiles if you'd rather avoid storing real names. You can:
- Export your profiles as a JSON file (move to another device manually)
- Import a JSON file (restore from backup)
- Wipe all profiles in one click
Cookies
None.
Your rights
If you signed up for the newsletter, email [email protected] to be removed. We hold no other personal data tied to you.
Changes
If this policy materially changes, the change goes here, dated at the top.