How we built Chemistry Toolkit, a subscription resource library for chemistry teachers
Chemistry Toolkit is a subscription resource library giving chemistry teachers and tutors every worksheet, exam and answer pack in one place.

The challenge
Chemistry teachers and tutors lose hours hunting for resources scattered across drives, forums and old textbooks, and the quality is a lottery. Chemistry Toolkit needed to prove in seconds that one subscription replaces all of that, then deliver a resource library fast and organised enough that a teacher can find, preview and download exactly what they need between lessons.
What we built
- A marketing site that makes the "every chemistry resource, one subscription" promise land and routes teachers and tutors to a free trial
- The resource library app itself: worksheets, booklets, answer packs, teacher-made exams and misconception resources, filtered by qualification and year group
- Accounts, subscription billing and download management so schools and individual tutors self-serve without admin
- The brand and identity applied across the marketing site and the product as one system
- Full SEO output, analytics and uptime monitoring
The result
Chemistry Toolkit ships as a marketing site and a working, searchable resource library behind one subscription. Presented deliverable-led: no adoption figure is claimed here.
Short, boring and the same on almost every build. That consistency is the point: nothing here is rented, and all of it is yours.
Claude Code
An AI engineer writing plain, fast code inside the repo - reviewed by a senior human before anything ships.
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Every change is a commit you can read and a pull request you can reject. The repository is yours from day one.
Vercel
Pages built ahead of time and served from a network near the visitor, with a preview deployment for every change.
Resend
Transactional email that reaches the inbox - form notifications and confirmations, properly authenticated.
Supabase
Postgres with row-level security, for the products that hold real records rather than just pages.
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