What it does, and what it does not
A small tool that does one thing. Both lists are here so you can work out in thirty seconds whether it solves your problem.
What it does
Splits documents that are too long
ChatGPT caps text files at 2 million tokens. Past that, a document is truncated with no warning. The extension cuts it into pieces that fit and sends them in order.
Sends the instruction that stops early answers
Before any content, ChatGPT is told how many parts are coming and asked to hold its answer. Skipping this is why manual splitting produces a summary of part one.
Reads PDF, Word, text, markdown and HTML
Parsing happens in your browser using standard libraries. Text-based PDFs and DOCX both work.
Runs entirely in your browser
There is no server. Your document is read locally and the text goes to ChatGPT, the same as if you had pasted it.
Shows progress and can be stopped
You can see which part it is on and cancel part way through if it is not going the way you wanted.
Includes four prompt shortcuts
One click for a structured summary, a professional rewrite, a code review, or a set of quiz questions on whatever is in the conversation. It puts the prompt in the box and leaves sending to you.
What it does not do
Better to find out here than after installing it.
Raise any of ChatGPT's limits
Those are enforced by OpenAI. Nothing running in a browser can change them, and anything claiming otherwise is not telling you the truth.
Work with video or audio
Neither is among the file types OpenAI lists for uploads. Get a transcript and upload that instead.
Read scanned PDFs
A scan is images. Every ChatGPT plan except Enterprise discards images from documents, so there is nothing to extract. Run OCR first and it works normally.
Run on a phone or tablet
Mobile Chrome does not support extensions at all. This is a limitation of mobile Chrome and no extension can work around it.
Cost anything, ever
No paid tier exists. This is on the honest list rather than the features list because "free" is usually the setup for a price.
Opens the official Chrome Web Store listing. No account, no payment.