Norwegian Grammar Resources
Grammar Tips from (Old) Duolingo
EXTENSIVE set of grammar rules for Norwegian.
Recent updates to Duolingo has removed a lot of this important information, so a big thanks to the volunteers of duome who have been able to save it all in one place.Grammatikk.com
A complete grammar book available for free online. Website looks old but is still maintained regularly by it’s creator and NTNU Norwegian Teacher - Kjell Heggvold Ullestad.Norsk grammatikk - norsk som andrespråk
For (A2 - C1) A website with interactive grammar questions for Norwegian learners, divided into 17 seperate chapters.The Language Council of Norway (Språkrådet)
Rules for writing & Practical Grammar
*This information is only available in Norwegian and therefore more useful for advanced learners.