Sidenote is unclaimed —

Sidenote

AI answers with receipts·getsidenote.app

Sidenote is a browser extension and web app that summarizes, explains, and answers questions about documents viewed in the browser, attaching an inline citation to every claim that scrolls to and highlights the exact source passage. It works on web pages, PDFs (including scanned ones via OCR), Word and PowerPoint files, Google Docs, Google Drive files, Confluence wikis, Notion pages, Slack canvases, SharePoint & OneDrive files, and email messages. Core features include hierarchical summaries, document-grounded chat, plain-language explanations, a jargon glossary builder, multi-document collections, and shareable snapshot links.

What it's for

Ask a wiki what was done last time and get a link to the source documentSynthesize across many documents without losing citationsGet a knowledge-base answer with a source citation ready to pasteQuote the exact clause in policy documents, vendor contracts, or compliance evidencePull supporting passages from long PDFs and arXiv papers into notesSummarize a proposal, meeting notes, brief, PRD, or contract with citationsChat across multiple documents grouped into a collectionIndex and ask questions across an entire Confluence spaceAsk questions about a Gmail or Outlook email and its attachments

Features 20

"Explain simply" plain-language explanations of highlighted passages
Answers available in 17 languages
Cited document summaries with TL;DR/Standard/Detailed variants on paid plans
Click-to-scroll citation chips that highlight the exact source passage
Confluence space indexing (Pro+ and above)
Document-grounded chat with inline citations
Email and attachment reading (Gmail/Outlook messages and attached PDFs, Word, PowerPoint)
Export to Markdown, HTML, PDF and plain text
Find tab for semantic search within an open document
Glossary builder for key terms across a collection
Google Drive file reading
Keyboard shortcut (Ctrl/Cmd+Shift+S) to open the side panel
Multi-document collections for cross-document chat
Notes and highlights with saved locations
OCR support for scanned PDFs (paid plans)
Per-site pause to disable Sidenote on specific sites
Server-side citation verification that drops unsupported claims
Slack app with /sidenote slash command and 'Save to Sidenote' message shortcut
Snapshot-frozen, revocable share links for summaries, glossaries, chat threads and answers
Tags and starred documents for library organization

At a glance

free tierfree trial

TypeBrowser extension

DeploymentCloud

PlatformsWeb

Forengineering teams, product teams, customer success teams, legal and operations teams, researchers, students

CompanySidenote

Integrations

ConfluenceNotionGoogle DocsGoogle DriveSharePointOneDriveSlackGmailOutlook

Complianceself-reported

UK GDPR

Resources

Pricing

Prices are stated in GBP and exclude VAT where applicable. Personal plans (Free, Pro, Pro+, Pro Max) are shown billed monthly; an annual toggle advertises savings of up to 20% but does not display exact annual amounts for these plans. An Enterprise option (SSO, shared team collections, per-seat billing) is available via a separate tab, overlapping with the Team plan.

FreeFree

No short or long summary variants, no multi-document collections, no print-quality rendering (OCR, Word & PowerPoint), no Confluence space indexing.

3 documents/month, up to 5 MB each, 10 standard-length summaries/month, 10 explanations/month, 3 glossary builds/month, 10 chat turns/month

Pro£10/mo

No Confluence space indexing. Billed monthly.

25 documents/month up to 20 MB each; 75 summaries/month; 70 explanations/month; 15 glossary builds/month; 35 chat turns/month

Pro+£20/mo

Billed monthly.

50 documents/month up to 40 MB each; 140 explanations/month; 150 summaries/month; 30 glossary builds/month; 50 chat turns/month; Confluence indexing 200 pages/month

Pro Max£100/mo

Billed monthly.

250 documents/month up to 75 MB each; 700 explanations/month; 750 summaries/month; 150 glossary builds/month; 250 chat turns/month; Confluence indexing 500 pages/month

Team£18/user/mo

£18/seat/month, or £14.40/seat/month billed annually. Regular team members do not get Confluence space indexing.

Pro-level per-seat caps (25 documents, 75 summaries, 35 chat turns/month); Confluence space indexing with 500 pages/month for team owners and admins

Save up to 20% when billed annually (pricing page toggle); exact annual figures for Personal plans are not shown, only the Team plan's annual per-seat rate (£14.40/seat/month vs £18/seat/month monthly) is stated.