NotebookLM
FreeUpload PDFs, notes, and URLs. Ask questions that can only be answered from those files. Best free research tool for a defined corpus.
No cardMM-friendly
Free tier
Free notebooks grounded only in sources you upload.
Limits
It only knows what you upload. Source caps apply per notebook.
Best for
- Contract / brief Q&A
- Course notes
- Source-limited research
How to use it well
- One notebook per project. Do not mix unrelated PDFs.
- Ask “quote the passage” before you ask “summarize”.
- Use Audio Overview only as a review pass, not as the source of truth.
Myanmar notes
Upload Burmese PDFs as text-selectable files, not photos, or extraction quality drops.