Open Data by P20.dev
A personally curated archive and my contribution to our shared digital commons. Here I collect, sanitize, and refine foundational datasets with a special focus on the Danish language, culture, and authoritative public registries – shared freely so we can learn, build, and create better things together.
Connect Claude Desktop, Cursor or Antigravity to authoritative Danish dictionary and spellcheck (386k words, 4 tools).
Danish grammar, curiosities & part-of-speech lists
Irregular verbs, optional gender nouns, pluralia tantum, part-of-speech subsets, isograms, typos and rare word patterns.
Danish word game & dictionary lists
Inflected forms, 5-letter Wordle words, length-based subsets (1-33), palindromes, and lemmas with part-of-speech tags.
Directory of Danish open data sources
Curated machine-readable catalog of 25 verified public data sources, APIs, and portals across Denmark.
Danish alcohol and tobacco consumption (1921-2025)
Over a century of official time-series on sales and consumption of beer, wine, spirits, and tobacco from Statistics Denmark.
DST newborn baby names (1985-2025)
Top 50 annual rankings of most popular baby girl and boy names in Denmark from 1985 to 2025.
Refined, Not Just Raw
Raw public registries often demand hours of cleanup and normalization. Here the foundation is already curated, sanitized, and ready to plug directly into your next build.
Giving Back to the Commons
Great ideas flourish when knowledge is shared openly. This repository exists to give back useful groundwork so creators and developers never have to solve solved problems.
Build Freely Without Friction
Whether prototyping a word game, tuning a spell checker, researching demographics, or training models, grab and use everything completely freely.