- https://arts-and-sciences.com - private website
- https://andreas-schwenk.github.io - GitHub website
- https://andreas-schwenk.github.io/tex - TeX typesetter (writen in Dart)
- https://www.th-koeln.de/personen/andreas.schwenk/ - office website
- https://mathebuddy.github.io/ - mathe:buddy - a gamified app for higher math
- https://aufgabenpool.th-koeln.de - database for math questions
- https://sell.f07-its.fh-koeln.de/web/ - SELL, a simple E-Learning Language
- https://andreas-schwenk.github.io/weblisp/ - nano Common-LISP implementation
- https://andreas-schwenk.github.io/webstde/ - Web-based State Transition Diagram Editor (webSTDE) to generate VHDL/Verilog/C Code
- https://multila.org - compiler & computer architecture generator (currently offline)
- https://github.com/mathebuddy
- https://github.com/multila
- https://github.com/c64emu
- https://github.com/aufgabenpool
- https://github.com/sellquiz
- https://github.com/e-learning-guides
- https://pub.dev/packages/tex - Tiny TeX to SVG engine
- https://pub.dev/packages/slex - Simple and configurable lexer for tokenization
- https://pub.dev/packages/sparse - Simple and configurable PEG parser generator
- https://pypi.org/project/makemake/ - simple Makefile generator for C projects