Digital Tools — Collection
Here I list small web tools that I built for teaching. For each entry you'll find the live site as well as the link to the GitHub repository; two short sentences summarize the purpose and application possibilities.
Note on feedback: If you have errors or suggestions for improvement, please open an issue in the respective GitHub repository. Use this contact form as a quick alternative.
For Every Subject
Card Creator
- Live: https://ccreator.tinfo.space/
- Repo: https://github.com/HansTydecks/card-creator-website A browser-based tool for creating flashcards and exporting them as print-ready PDFs. Ideal for quickly printing individualized learning cards for classes.
Gap Text (Word Reveal)
- Live: https://words.tinfo.space/
- Repo: https://github.com/HansTydecks/word-reveal An interactive gap-text generator in three steps: enter text, select words, use gap text.
Table Reveal (Tabula)
- Live: https://tabula.tinfo.space/
- Repo: https://github.com/HansTydecks/table-reveal Tool for gradually revealing table cells (CSV/Excel/TSV) with timer function — good for assessments and interactive presentations.
Lesson Plan Creator (Lessplan)
- Live: https://lessplan.tinfo.space
- Repo: https://github.com/HansTydecks/fast-lessonplan Tool for quickly documenting lesson plans. AI prompt included!
Computer Science
Pixel & Bits (Edu Pixel Draw)
- Live: https://pixel.tinfo.space/
- Repo: https://github.com/HansTydecks/edu-pixel-draw A small drawing area (pixel grid) with learning missions that shows how bits are used for image representation. Usable as an exercise to intuitively convey bit depth and memory requirements; offline-capable and without backend.
Binary-ASCII-Visualizer
- Live: https://bascii.tinfo.space/
- Repo: https://github.com/HansTydecks/binary-ascii-visualizer Interactive visualization of 8 bits: switches, ASCII characters, decimal values and grayscale view. Designed for use on smartboards, the tool helps understand bits/bytes and different interpretations of the same bits.
More about Binary-ASCII-Visualizer →
Binary-Decimal-Visualizer (Becimal)
- Live: https://becimal.tinfo.space/
- Repo: https://github.com/HansTydecks/binary-decimal-visualizer The same format as the Binary-ASCII Visualizer, but with focus on Binary -> Decimal conversion, completely ASCII-free.
More about Binary-Decimal-Visualizer →
EVA Stations
- Live: Various stations (see detail page)
- Repo: GitHub links on detail page A collection of interactive stations for the EVA model (Input-Processing-Output). With physical devices (microphone, MIDI keyboard, barcode scanner, printer), different input and output modalities can be experienced.
Graph Theory and Network Topologies
- Live: https://graphs.tinfo.space/
- Repo: https://github.com/HansTydecks/network-topology Interactive simulation of graphs with nodes and edges. Learners discover different network topologies, simulate data flow (BFS/DFS) and analyze failures — ideal for graph theory and networks.
Lock Simulation
- Live: https://lock.tinfo.space/
- Repo: https://github.com/HansTydecks/combination-lock A digital combination lock simulation, perfectly suited for escape rooms or locked digital content. When physical locks are not available, this simulation offers a good alternative.
Logic Stories (Lories)
- Live: https://lories.tinfo.space/
- Repo: https://github.com/HansTydecks/logic-story Three different interactive stories for introduction to programming logic and variables. Usable without prior knowledge, ideal for lesson starters. With dyslexia support.
Storage Media Visualizer (Memory)
- Live: https://memory.tinfo.space/
- Repo: https://github.com/HansTydecks/memory-visualizer This simulation puts storage media (CD, DVD, USB stick, etc.) and file types in relation to each other. In combination with physical storage media as demonstration objects, learners can tangibly understand storage sizes.
More about Memory Visualizer →
Dilemmataxi
- Live: https://dilemmataxi.tinfo.space/
- Repo: https://github.com/HansTydecks/car-dilemma A survey website about ethical dilemmas in autonomous driving. Learners answer questions about machine decision-making processes — ideal for discussions about utilitarianism vs. principle-based ethics (plan about 40 minutes).