AI for Word documents - summaries with the receipts.
Sidenote is a browser extension (Chrome, Edge and Firefox) that summarizes and chats with your Word (.docx) files. Read them where they live via your OneDrive or SharePoint connection, or upload a one-off file. Then ask a question and click a citation to land on the exact paragraph that proves the answer.
Read-only · Connect OneDrive or upload a file
5.1 Fees are invoiced monthly in arrears. 5.2 The Client shall pay each undisputed invoice within thirty (30) days of the invoice date. 5.3 Late payments accrue interest at 1.5% per month on the outstanding balance.
Undisputed invoices are due net 30 from the invoice date1, and late payments accrue 1.5% interest per month2.
The answer is in the document. Reading all 40 pages to find it isn't the plan.
Word documents are where the long-form thinking lives: reports, contracts, proposals, minutes, specs. They're also where it gets lost. The clause you need is on page 31, the decision is buried in the minutes, and search inside Word only gets you so far.
Sidenote reads the .docx for you, in your browser, on the file you already have open, and answers the question you actually asked, with a citation you can verify in one click.
How Sidenote reads your Word documents.
Bring in your .docx - connector or upload.
Connect OneDrive or SharePoint read-only to read Word files where they live, or upload a one-off .docx straight to the web app. Your call, file by file.
Open the document, ask a question.
Sidenote rides in your browser's side panel. Ask for a summary, a clause, the actions - or just chat with the document the way you'd quiz a colleague who'd read it.
Click a citation, see the paragraph.
Every claim is grounded in a quoted chunk of the source. Click the chip and Sidenote takes you straight to the exact paragraph - no scrolling, no guessing.
Working across a set of related files? Bundle them into a collection and query the whole set at once - citations name the source file and paragraph. Prefer the head-on pitch? See chat with documents.
What people ask a Word document - and how Sidenote answers.
“Give me the TL;DR of this 40-page report.”
A long .docx becomes a short, cited summary - every claim links back to the exact paragraph it came from, so you can check it in a click.
“What does this contract say about termination?”
Sidenote finds the clause across a sprawling agreement and quotes the line, with the surrounding context, rather than guessing.
“What were the actions from these minutes?”
It reads the meeting notes and pulls out the decisions and owners, citing the paragraph where each was recorded.
“Summarize this proposal before my call.”
Turn a dense Word proposal into the three things that matter (scope, price, timeline), each pointing at the section it lives in.
“What changed in this policy document?”
Ask what a handbook or policy .docx says about a topic and get the relevant clause quoted, instead of scrolling for ten minutes.
“Explain this technical spec in plain English.”
Simplify a jargon-heavy Word spec into language you can act on - with citations so you can verify nothing was invented.
You choose what it reads. Nothing else.
When you read Word files from Microsoft 365, Sidenote connects through read-only Microsoft Graph access, scoped to the files you open - the same connector that powers Sidenote for SharePoint and OneDrive. There's no tenant-wide crawl and no copy of every document sitting on someone else's server. Uploaded one-off files are processed only to answer your questions, with the same click-to-source citations on every answer, and a document is only ever read once you open it.
Your documents stay in your account.
Content lives behind row-level security in our UK (eu-west-2) Supabase region - your content stays scoped to your account. Anthropic and Voyage AI both run with no-training defaults on the API tiers we use; we never fine-tune models on user content.
Common questions about Sidenote for Word documents.
Make your Word docs answer back.
Add Sidenote to your browser, connect OneDrive read-only or upload a .docx, open the document, and ask for the summary you need. Free tier forever, opt-in 7-day Pro trial, no card required.
Read-only · Connect OneDrive or upload a file