Chat with documents tools
Ask questions of PDFs and files. 5 tools we track, checked .
Short answer page: What's the best chat with documents tool?
Ranked by fit for solo businesses: tools we profile in depth first, then those used in our research notes, then the rest. Affiliate status never changes the order.
- 1
Claude
Pick this if you want long documents, careful writing and code.
Anthropic's AI assistant, strong at long documents, writing and coding.
Free plan + paid plans · Free plan: Yes · $0 · then $20/mo, or $17/mo billed yearly ($200 upfront) · Difficulty 1/5
- 2
NotebookLM
Pick this if you want grounded Q&A and audio overviews of your files.
Google's research notebook that answers questions only from the sources you upload.
Free plan + paid plans · Free plan: Yes · Difficulty 1/5
- 3
SciSpace
Pick this if you want understanding dense papers fast.
Reads, explains and summarizes academic papers.
Free plan + paid plans · Free plan: Yes
- 4
ChatPDF
Pick this if you want quick questions to a single PDF.
Chat with PDF files and get answers with page references.
Free plan + paid plans · Free plan: Yes
- 5
Humata
Pick this if you want teams searching document libraries.
Ask questions across many documents with cited answers.
Free plan + paid plans · Free plan: Yes
Side-by-side
| Tool | Pricing model | Free plan | Starting price | Difficulty | Output rights | Best for |
|---|---|---|---|---|---|---|
| Claude | Free plan + paid plans | Yes | $0 · then $20/mo, or $17/mo billed yearly ($200 upfront) | 1/5 | You own or may use output commercially | Long documents, careful writing and code |
| NotebookLM | Free plan + paid plans | Yes | See official site | 1/5 | – | Grounded Q&A and audio overviews of your files |
| SciSpace | Free plan + paid plans | Yes | See official site | – | – | Understanding dense papers fast |
| ChatPDF | Free plan + paid plans | Yes | See official site | – | – | Quick questions to a single PDF |
| Humata | Free plan + paid plans | Yes | See official site | – | – | Teams searching document libraries |
"Starting price" is shown only for tools we profile in depth, where we read the official pricing page on . For the others, check the official site.