Drop a PDF here
Up to 20MB. The PDF needs selectable text, not scanned pages.
5 tokens to prepare a document
Chat with a PDF
Upload a document and ask it questions in plain English. Every answer points at the pages it came from, so you can check it rather than take it on trust.
- 01
Upload
Drop in a PDF up to 20MB. The document is read, split into passages and indexed, which takes a few seconds.
- 02
Ask
Type a question the way you would ask a colleague. The relevant passages are found first, then the answer is written from them.
- 03
Check the pages
Each answer carries the sections and page numbers it drew on, so you can jump to the source and confirm it.
Questions worth asking
Anything you would put to someone who had already read the file. Ordinary phrasing works better here than the keyword-style terms you would type into a search box.
- What does this paragraph mean, in plain words?
- What are the main points of this section?
- When did this happen, and where does the document say so?
- What does it say about payment terms, and on which page?
- Summarize the argument in five sentences.
- Are there any dates or deadlines I should know about?
What you save by asking
Most of the time you do not want the whole document. You want one figure, one clause, or the shape of an argument, and reading forty pages to reach it is the expensive part.
Minutes rather than an afternoon
Ask what you came to find out and read the answer. The scrolling and scanning is the part this removes.
The page comes with the answer
Answers name the sections they were built from, so checking a claim is one jump instead of a fresh hunt through the file.
Ask again in plainer words
If an answer goes over your head, say so. You can have the same passage explained more simply without starting the whole thing over.
Nothing to set up
Drop the file in and type. There are no settings to work through, and no account needed before your first document.
For anyone facing a long document
Students
Find the argument in a paper without reading forty pages to locate one section.
Anyone reading a contract
Ask what a clause says and see the page it sits on before you rely on the answer.
Researchers
Interrogate a report for the figure or method you need instead of scrolling for it.
Busy readers
Get the shape of a document quickly, then go deep only where it matters.
Working with more than one document
Uploads stack up in the rail beside the chat. Each PDF keeps its own thread, so the questions you asked about a lease stay with the lease and never turn up in the conversation about a research paper. Switching between them is a click, and the earlier answers are still there when you come back to one.
The trade is that every answer is built only from the document it belongs to. A question that spans two files has to be asked twice, once in each thread, and the two answers compared by you. That is deliberate: it is the reason a citation can point at a real page rather than at a pile of documents in general.
When you are finished with a file, delete it. That removes the document and its conversation together, which is worth doing as a habit if you have been reading something you would rather not leave sitting on a server.
Once you have found what you needed
Reading a document is usually the start of writing something. Every tool here runs on the same daily allowance, so moving a passage between them costs you nothing extra.
AI Paragraph Generator
Turn what a document told you into finished paragraphs on the topic.
AI Paragraph Rewriter
Recast a passage you pulled out so it sits inside your own prose.
Paragraph Summarizer
Cut a long extract down to the points that actually matter.
Paragraph Expander
Build a one-line note from a report into a full paragraph.
AI Humanizer
Rewrite a flat AI draft so it reads like something a person wrote.
Grammar Checker
Clean up grammar, spelling and punctuation in text taken from a PDF.
AI Chat
Ask about anything outside a document, in a thread you can steer.
ChatGPT Free Online
A free assistant in the browser, with no login and nothing to install.