Sidenote
getsidenote.app
What it is
Sidenote is a browser-based AI reading assistant for asking questions about documents and tracing answers back to their source passages. Select a citation to jump to and highlight the cited text. It can summarize and explain documents, build glossaries, search files, and organize material with notes, highlights, tags, starred documents, and multi-document collections. It reads browser-rendered PDFs, including scanned PDFs with OCR, and accepts PDF, DOCX, PPTX, TXT, MD, MDX, and RTF uploads. Dedicated integrations include Confluence, Notion, Google Docs, Slack canvases, SharePoint, and OneDrive. Extensions are listed for Chrome, Edge, and Firefox; Opera is coming soon. The free plan allows 3 documents per month, while Pro is £10/mo billed monthly. A 7-day Pro trial requires no card and limits users to 10 documents, 20 summaries, and 10 chat turns. Users can choose to keep documents while their account is open or discard them, which purges a document within 24 hours. Sidenote says content is not used to train AI models, but it is not yet SOC 2 certified.
Spec sheet
- What it does
- Sidenote is an AI reading assistant that answers questions about documents in the browser and shows where each answer came from.Read 29 Sep 2026 · getsidenote.app
- Trial
- The 7-day Pro trial requires no card and has limits including 10 documents, 20 summaries, and 10 chat turns.Read 29 Sep 2026 · getsidenote.app
- Integrations
- Dedicated integrations include Confluence, Notion, Google Docs, Slack canvases, SharePoint, and OneDrive.Read 29 Sep 2026 · getsidenote.app
- Privacy
- The maker says user content is never used to train AI models and its AI providers use no-training defaults on the API tiers used.Read 29 Sep 2026 · getsidenote.app
- Support
- The maker lists support by email at [email protected] and says it is supported by its solo developer, Lewis Hadden.Read 29 Sep 2026 · getsidenote.app
- Headquarters
- Whittlesey, United KingdomRead 23 Sep 2026 · getsidenote.app
- Browser availability
- The site lists Chrome, Edge, and Firefox extensions, with Opera described as coming soon.Read 29 Sep 2026 · getsidenote.app
- Cited answers
- Answers cite source passages, and clicking a citation scrolls to and highlights the passage in the page.Read 29 Sep 2026 · getsidenote.app
- Compliance limit
- Sidenote says it is not yet SOC 2 certified and that formal attestation is on its roadmap.Read 29 Sep 2026 · getsidenote.app
- Data residency
- Documents are stored in Supabase in the UK eu-west-2 London region, encrypted at rest and isolated per account with row-level security.Read 29 Sep 2026 · getsidenote.app
- Document tools
- Features include summaries, explanations, glossaries, multi-document collections, document search, notes, highlights, tags, and starred documents.Read 29 Sep 2026 · getsidenote.app
- File support
- Sidenote reads browser-rendered PDFs, including scanned PDFs with OCR, and accepts PDF, DOCX, PPTX, TXT, MD, MDX, and RTF uploads.Read 29 Sep 2026 · getsidenote.app
- Retention
- Users can choose Store retention while the account is open or Discard, which purges a document within 24 hours; users can also delete library documents at any time.Read 29 Sep 2026 · getsidenote.app
- Who it is for
- The maker describes use cases for engineering, product, customer success, legal and operations, and research teams.Read 29 Sep 2026 · getsidenote.app
Plans and prices
Free Free forever 3 documents/month · 5 MB/document · 10 summaries/month · 10 explanations/month · 3 glossary builds/month · 10 chat turns/month · no collections or Confluence space indexing Read 29 Sep 2026 · getsidenote.app
Pro £10 a month monthly 25 documents/month · 20 MB/document · 75 summaries/month · 70 explanations/month · 15 glossary builds/month · 35 chat turns/month · collections up to 5 documents Read 29 Sep 2026 · getsidenote.app
Team (annual billing) £14.40 a year billed annually Pro-level caps per member · shared team collections · SAML SSO with domain auto-join · team owners/admins get Confluence indexing at 500 pages/month Read 29 Sep 2026 · getsidenote.app
Team £18 a month monthly Pro-level caps per member · shared team collections · SAML SSO with domain auto-join · team owners/admins get Confluence indexing at 500 pages/month Read 29 Sep 2026 · getsidenote.app
Pro+ £20 a month monthly 50 documents/month · 40 MB/document · 150 summaries/month · 140 explanations/month · 30 glossary builds/month · 50 chat turns/month · collections up to 10 documents · Confluence indexing 200 pages/month Read 29 Sep 2026 · getsidenote.app
Pro Max £100 a month monthly 250 documents/month · 75 MB/document · 750 summaries/month · 700 explanations/month · 150 glossary builds/month · 250 chat turns/month · collections up to 25 documents · Confluence indexing 500 pages/month Read 29 Sep 2026 · getsidenote.app
Strong points and limits
Strong points
- Citations jump to and highlight source passages.
- Reads scanned PDFs with OCR.
- Accepts seven listed document upload formats.
- Free plan includes 3 documents monthly.
- Discard retention purges documents within 24 hours.
Limits
- Free plan has no collections.
- Free plan allows 3 documents monthly.
- Not yet SOC 2 certified.
- Opera extension is coming soon.
Who it suits
Sidenote suits people and teams who need to question, summarize, and organize documents in a browser. The maker names engineering, product, customer success, legal, operations, and research teams as use cases.
Verdict
Sidenote combines document Q&A with source citations and a broad set of reading and organization tools. Check its plan limits and SOC 2 status against your requirements before choosing it.
Where Specifiction places it
- AI Summarizers#17 of 367.9
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