When we're not building curriculum, kits, and the next generation of builders, we love building software.
We build for ourselves, and for the community: boring tiny tools, each of which does one job well. Free! Borrow them, fork them, or just nick the idea.
A decade of open-source blocks for the BBC micro:bit.
We've maintained MakeCode extensions for the micro:bit community since 2017. Our flagship, the Tinker Kit, is featured on microbit.org; pxt-oled-ssd1306 is one of the most-used OLED drivers around; and we co-maintain kits like the IoT Environment Kit with our partners at ElecFreaks. Twenty-odd extensions, all free to drop into any MakeCode project.
For Teachers and makers building micro:bit hardware projects.
An interactive board of classroom widgets, with students joining live.
Drag timers, polls, randomisers, Q&A, traffic lights and a dozen more widgets onto an infinite board. Students join from their own devices with a short code, so votes, submissions and live feedback update in real time. Dark mode, autosave and voice commands are built in.
For Teachers and trainers running live, in-room lessons.
Vibe-code your micro:bit: describe it in English, get working MakeCode.
Bolts an AI assistant onto Microsoft MakeCode for the BBC micro:bit. Describe what you want and Vibbit generates blocks that actually compile, validated against real micro:bit APIs, with revert and error-aware fixes. Students bring their own API key, or a class points at one school-hosted backend.
For CS and STEM teachers running micro:bit lessons, and their students.
Turn a spreadsheet and a background image into hundreds of certificates.
Upload a certificate background, drag text fields exactly where you want them, paste in your recipient list, and generate one polished PDF per row. It handles long lists, rich formatting and font control, and can even email each certificate out via Resend or SES.
For Event organisers, course and workshop runners, and schools.
You just closed that window. Now get it back.
A privacy-first macOS menu-bar app that keeps a short, local history of your screen. Hit a hotkey to scrub back to something you just saw, then drag over any frame to OCR-copy the text (a link, an error message, a 2FA code). Everything stays on your Mac: no cloud, no subscription.
For Mac power users and developers who lose context fast.
$ cp .env.example .env $ docker compose up --build ▸ bot online as Points Accelerator#4242 ▸ dashboard ready on :8080
A group-first points economy for class communities on Discord.
Tracks shared group points and personal currency side by side, with a configurable per-role reward matrix, a custom shop, wallet transfers, and a submission workflow where approved student work automatically awards points. Ships with a Discord-login admin dashboard.
For Instructors gamifying a Discord-based cohort.
$ npm install $ netlify deploy --prod set PASSWORD, SHORT_IO_API_KEY, SHORT_DOMAIN ✓ branded short links, live
A password-protected front end for branded short links and QR codes.
Wraps the short.io API behind one shared password so your whole team can mint branded short links without ever handing out the API key. Custom slugs, auto-generated QR codes (downloadable as PNG or PPTX), and a searchable history come built in.
For Small teams and trainers sharing one short.io account.
$ ./groupmaker.py create cohort-2026 trainer@example.com ✓ created cohort-2026@your-domain.com + trainer@example.com (owner)
Create and manage Google Workspace groups without the Admin console.
A small CLI and matching web app for creating, renaming, deleting and managing membership of Google Groups through the Admin SDK. Spin up a fresh mailing list per cohort in a single command, or hand the web UI to staff behind Google sign-in.
For Workspace admins and ops teams who make a lot of groups.
It's all on GitHub. File an issue, send a pull request, or go build your own. We don't track downloads, so a GitHub star is honestly how we find out anyone's using them.
github.com/tinkertanker ↗