Standard Notes is an open-source, end-to-end encrypted note-taking app that keeps notes and files in sync across web, desktop, and mobile on unlimited devices, including a free tier. It serves people who treat their notes as sensitive by default and want audited encryption with user-held keys, without operating any infrastructure themselves. Since April 2024 it has developed as a distinct business inside Proton.[1][2][3]
Quick verdict
People leaving a non-encrypted notes service gain the most from Standard Notes, because its homepage positions it directly against services like Notion and Evernote that can expose data to employers and governments, countering with audited end-to-end encryption, offline copies, and unlimited-device sync. Its concrete strength is the free tier: encrypted sync, offline access, tags, per-note password lock, full data export, and two-factor authentication at no cost. Its material constraint is that rich editing lives behind paid tiers: the free tier covers plain-text notes, while Markdown, spreadsheets, Web Clipper, and long revision history require Productivity at $90 per year or Professional at $120 per year. If you want encrypted notes without running servers, start with the free tier; if you need Markdown and rich editing on day one, budget for Productivity.[1][2]
Key features
Audited end-to-end encryption Notes and files are protected with audited, industry-leading end-to-end encryption, and only the user holds the keys required to decrypt the data. This matters for financial records, legal documents, and other material people would never knowingly share.[1]
Free sync on unlimited devices Encrypted sync runs across web, desktop, and mobile with no device cap, even on the free tier. This covers capture on a phone and continuation on a desktop without a paid plan.[1][2]
Offline copies and cloud backup Every device keeps an offline copy of notes and files accessible without an internet connection, while automated backups and secure cloud sync protect against device loss, damage, or theft.[1]
Tags, note locking, export, and 2FA The free tier organises notes into tags, password-protects individual notes, exports all data in encrypted or plaintext format, and supports two-factor authentication plus daily encrypted email backups.[1]
Paid-tier editing and capture Productivity at $90 per year adds the Super note type with Markdown, rich text, checklists, and code snippets, plus spreadsheets with formulas, Daily Notebooks, folders, a Web Clipper, and 1-year note revision history. Professional at $120 per year adds 100GB of encrypted file storage and family subscription sharing.[1]
Self-hostable clients and server The web app compiles to static files that can be served from any web server, clients can be pointed at a custom sync server through DEFAULT_SYNC_SERVER, and an official self-hosted server repository exists. The server repository is currently marked Legacy, so this is documented capability rather than a current recommended path.[1][2]
Open source under AGPL-3.0 The canonical standardnotes/app repository is public open source under the GNU Affero General Public License v3.0, with a TypeScript and JavaScript codebase and native mobile footprints. It is organisation-owned, not a fork, and not archived.[1][2][3]
Proton-era longevity Standard Notes joined forces with Proton in April 2024 and reports tens of thousands of paying customers directly supporting development, with Proton support used to harden the architecture against abuse and outages. This is the evidenced basis for treating it as a sustained business rather than a solo project.[1]
Who will love it
Privacy-first individuals replacing Notion, Evernote, or Google Keep: the homepage contrast with those exact services scopes this migration, pairing audited encryption with the same everyday capture-and-sync workflow.[1]
Long-lived library keepers: full data export, 1-year revision history on paid tiers, daily encrypted email backups, and Proton-backed development fit notes meant to survive for years.[1][2]
Multi-device users who will not run infrastructure: unlimited-device sync with offline copies across web, desktop, and mobile needs only download-and-register, with an optional self-host path for later.[1][2][3]
Who should avoid it
Anyone needing Markdown or rich editing for free: the free tier covers plain-text notes, and the Super note type, spreadsheets, and Web Clipper require a paid tier, so rich-editing needs must budget $90 per year and up.[1]
Teams with compliance checklists: no public developer API, single-sign-on offering, vendor region list, or enterprise SLA was documented in the observed official sources, so SSO, data-residency, and enterprise-support requirements stay unverified unknowns rather than supported claims.[1][2]
Operators wanting a supported self-host story: the official self-hosted server repository is marked Legacy, so adopting Standard Notes today means relying on its managed sync cloud in practice.[1][2]
Alternatives and compatibility
Notion is the catalogue-documented incumbent contrast: the official homepage names Notion among services that cannot prevent employers and governments from reading user data, making Standard Notes the end-to-end encrypted side of the same capture-and-sync job. This is an editorial inference, not a vendor endorsement of the catalogue edge.[1]
Portability is evidenced both ways: full data export in encrypted or plaintext format avoids lock-in, and apps cover Web, Windows, macOS, Linux, iOS, and Android, so leaving or joining does not strand a library on one platform.[1][2]
Questions worth asking
How much does Standard Notes cost per year?
Standard Notes is freemium, checked October 2026: a free tier covers encrypted sync, offline access, tags, export, and 2FA, while Productivity costs $90 per year and Professional costs $120 per year with 100GB of encrypted storage and family sharing. Productivity adds a 14-day refund period.[1]
Can you self-host Standard Notes?
Yes, with qualification: the web app compiles to static files servable from any web server, clients accept a custom sync server via DEFAULT_SYNC_SERVER, and an official self-hosted server repository exists. That server repository is currently marked Legacy, so new adopters should plan on the managed sync cloud unless they verify the legacy path themselves.[1][2]
Is Standard Notes really open source?
Yes: the canonical standardnotes/app repository is public under the GNU Affero General Public License v3.0, confirmed by license detection and the LICENSE file text. It joined forces with Proton in April 2024 and continues as a distinct business, so open source here coexists with commercial paid tiers.[1][2][3]
Sources and editorial review
Source research. Reviewed on October 13, 2026. Written by Sanjib Sah. AI assisted; reviewed by a human editor.
We have not run or tested this product.
- Standard Notes - End-To-End Encrypted Notes App
official · Observed October 13, 2026
Official positioning: free E2E app, audited user-held-key encryption, unlimited-device sync, offline copies, cloud backup, and contrast with Evernote, Google Keep, Notion, and Simplenote.
- Standard Notes plans
official · Observed October 13, 2026
Official tier structure: Free contents, Productivity at $90/year, Professional at $120/year with 100GB storage and family sharing, offline access, export, Web Clipper, history.
- standardnotes/app on GitHub
official · Observed October 13, 2026
Canonical repository identity: organisation-owned, AGPL-3.0 detection, TypeScript primary language, December 2016 creation, not archived, privacy/note-taking topics.
- standardnotes/app LICENSE
official · Observed October 13, 2026
LICENSE file text is the GNU Affero General Public License version 3, corroborating AGPL-3.0 detection.
- standardnotes/app README
official · Observed October 13, 2026
README: E2E positioning, easy self-hosting steps, Mac/Windows/Linux/iOS/Android downloads plus web app, static-file serving, DEFAULT_SYNC_SERVER variable.
- standardnotes/self-hosted on GitHub
official · Observed October 13, 2026
Official self-hosted sync-server repository, currently labelled Legacy in its description.
- Standard Notes and Proton's journey so far
official · Observed October 13, 2026
Official November 2024 post: joined forces with Proton about seven months earlier, distinct business, tens of thousands of paying customers, architecture hardening.
- standardnotes/app language breakdown
official · Observed October 13, 2026
Language bytes led by TypeScript then JavaScript, with Swift/Kotlin/Java mobile footprints.