Chat across multiple documents. With citations that name their source.
Bundle documents from your Sidenote library into a collection and chat, summarize, and build glossaries across all of them at once. Every answer is grounded in passages from the member documents; every citation names the document it came from.
Data security & residency
All customer data is encrypted at rest with per-tenant keys, and those keys are rotated automatically every 90 days.
Enterprise plans can pin their workspace to a dedicated single-tenant region - EU, UK or US - with data residency guaranteed in writing.
The question you actually have rarely fits in one document.
Single-document chat is great when the answer lives on one page. But most real questions don't. Have we ever discounted X by more than 10%? spans pricing pages, customer contracts, and a case study or two. Why did we pick Postgres? spans an ADR, an RFC, and a six-month-old PRD.
Collections let you stop opening tabs. Group the documents that belong to a question, then ask the question once. Sidenote queries across every member document and tags each citation with the doc it came from.
Build it, open it, query it.
Build from your library.
Open the Collections drawer in the side panel, name the collection, and add documents you’ve already stored. A document can belong to many collections: they reference your library, they don’t copy it.
Open it like a document.
No active tab required. The side panel treats the collection as the document, and Chat, Summarise and Glossary all switch to collection mode.
Query across the lot.
Ask once. Sidenote retrieves the top chunks globally across every member document, generates the answer, and tags each citation with the source doc.
Citations that name their source.
In single-document mode, clicking a citation chip scrolls the current tab to the highlighted passage. In collection mode, the chip carries the source document with it.
Sidenote checks whether that document is already open in one of your tabs. If it is, the highlight happens there in place, no new tab. If it isn't, Sidenote opens the document in a new tab (the Sidenote viewer for uploaded PDFs and DOCX renders, the original URL for articles and live wiki pages) and highlights the passage once the page is ready. Either way, one click gets you to the source.
When teams reach for a Collection.
Research projects
Bundle a set of arXiv papers, conference talks, or working drafts and ask synthesizing questions across them. Each citation names the paper, so you can trace every claim back to a single author.
RFP and proposal responses
PRDs, case studies, the pricing page, the security overview: all in one collection. When a prospect asks a question, query the bundle once and cite the doc.
Codebase context
Architecture decision records, RFCs, runbooks, the deploy doc. Ask “why did we choose Postgres over DynamoDB?” and Sidenote pulls the answer from the ADR while citing the design doc that informed it.
Support knowledge base
A curated collection of policy pages and help docs. When a complex ticket comes in, query the bundle as one: fewer tabs, faster answer, every claim quoted.
How many documents fit in one collection.
You can have any number of collections; the limit is per collection. See full pricing for the rest of each tier's allowances.
Common questions about collections.
Ask AI across your library.
Add Sidenote to your browser, store a few documents, then bundle them into a collection. The 7-day Pro trial includes collections of up to 3 documents, no card required.
7-day Pro trial · No card required · Free plan forever