Taking notes is deeply personal. You capture your thoughts, business plans, health concerns, financial details, and private conversations. Your note-taking app sees everything. If it’s not encrypted, the company behind it sees everything too.

Most mainstream note-taking apps (Apple Notes, Microsoft OneNote, Evernote) store notes in plaintext on their servers, encrypted only in transit. The company can read your notes. They don’t, but they can. That risk is unacceptable for sensitive information.

This guide compares four privacy-focused alternatives: Standard Notes, Joplin, Obsidian, and Notesnook. Each uses end-to-end encryption; each has different trade-offs.

The Encryption Model: What You Need

End-to-end encryption (E2E): Your device encrypts notes before sending to server. Server stores encrypted blobs. Company cannot read your notes.

How it works:

1. You write note on device.
2. Device encrypts note with your password/key.
3. Encrypted note sent to server.
4. Server stores encrypted data only.
5. Only your device (with your password) can decrypt.

Key difference from Google Drive encryption:

• Google Drive encrypts in transit (HTTPS) but decrypts on server. Google employees can read files.
• E2E encryption means files are encrypted on server. Google cannot read them.

Trade-off: E2E encryption is slower. Searching notes, syncing, sharing all require decryption on device. But privacy is worth it.

Standard Notes (Best Overall Privacy)

Pricing: Free tier (limited), Plus plan $8/month ($96/year), Professional $20/month ($240/year).

Platforms: Web, iOS, Android, macOS, Windows, Linux.

Encryption: AES-256 end-to-end. Client-side encryption before upload.

Self-hosting: Yes. Open-source server available. Requires technical setup.

Strengths

• Military-grade encryption: AES-256. No backdoors.
• Transparent & audited: Code is open-source. Third-party security audits published (Cure53, 2020).
• Privacy-first company: Based in Canada (strong privacy laws). No ads, no data selling.
• Minimal data collection: Only stores encrypted notes. Server doesn’t log IP addresses.
• Two-factor authentication: TOTP or backup codes.
• Extensions ecosystem: Plugins for themes, editors, tags (all encrypted).

Weaknesses

• Slow search: Full-text search requires decryption on device. Slow on large vaults (1000+ notes).
• Limited formatting: Default editor is minimal. Markdown support via extension.
• No offline editing on web: Web version requires internet.
• Expensive for premium features: Plus tier is $96/year; doesn’t include Advanced Editor or Themes. Professional tier required.

Use Case

Ideal for privacy-conscious users who prioritize encryption over features. Journalists, activists, health workers storing sensitive data.

Verdict

Standard Notes is the privacy winner. If encryption is your primary concern, choose this. Trade-off: slower, more expensive.

Joplin (Best Open-Source Alternative)

Pricing: Free, open-source. Optional sync server subscription $5.99/month.

Platforms: Windows, macOS, Linux, iOS, Android. Web via CapRover (advanced).

Encryption: E2E encryption via libsodium. Client-side encryption before sync.

Self-hosting: Yes. Joplin Server (open-source) can be self-hosted.

Strengths

• Truly free: Core app is open-source and free forever.
• No vendor lock-in: Export all notes as JEX files (encrypted archives). Use on any device.
• Markdown-first: Native Markdown editor, not an afterthought.
• Tags + notebooks: Organize notes hierarchically.
• Plugin ecosystem: Markdown plugins, rich text editors, themes (community-built).
• Offline-first: Works fully offline. Syncs when connection available.
• Self-hosting: Joplin Server can be self-hosted on a VPS for full control.

Weaknesses

• Clunky UI: Desktop app feels dated. Mobile experience is adequate but uninspiring.
• Sync is finicky: Sync between devices sometimes drops. Requires troubleshooting.
• No web client: Access notes from browser. Desktop app only on primary device.
• Search is slow: Like Standard Notes, full-text search requires decryption.
• Community-driven: Small team. Feature updates are slow compared to Obsidian.

Self-Hosting Cost

Joplin Server on DigitalOcean droplet: ~$5/month (droplet) + storage. DIY setup requires Linux knowledge; takes 1–2 hours.

Verdict

Best for privacy + frugality. If you’re willing to self-host or tolerate slower UI, Joplin is unbeatable. All notes remain yours; no subscription lock-in.

Obsidian (Most Powerful; Privacy Optional)

Pricing: Free for personal use, Obsidian Sync $8/month (optional), Publish $16/month (optional).

Platforms: Windows, macOS, Linux, iOS, Android.

Encryption: Not built-in. Sync is optional and uses E2E encryption (AES-256). Self-hosting required for full privacy.

Self-hosting: Yes, via git/Syncthing or third-party services.

Strengths

• Most powerful editor: Markdown with embedded images, tables, code blocks, LaTeX.
• Graph view: Visualize connections between notes. Powerful for knowledge management.
• Plugins: Enormous plugin ecosystem. Kanban boards, daily notes, spaced repetition (Anki integration).
• Templates: Reusable templates for recurring notes.
• Customization: CSS themes, fully customizable workspace.
• Backwards compatibility: Notes are plain Markdown. No lock-in. Open any text editor.

Weaknesses

• Privacy not default: Encryption requires Obsidian Sync subscription ($8/month). Or self-host, which is complex.
• No web client: Desktop + mobile only.
• Sync is optional: Without Sync, you need git or Syncthing to sync between devices.
• Obsidian Inc. uses your metadata: Even with Sync, Obsidian Inc. sees sync timestamps, vault size, device info. Not end-to-end encrypted by default.

Privacy Setup (DIY)

For full privacy without subscription:

1. Store vault in git repository (GitHub private repo, or self-hosted Gitea).
2. Use Obsidian git plugin to auto-commit changes.
3. Encrypt entire git repo with git-crypt or similar.
4. Sync across devices via git.

Time investment: 2–3 hours for Linux knowledge. Not trivial.

Verdict

Obsidian is the most powerful note-taking app but requires Sync subscription or DIY encryption setup. Best if you value features over privacy. For privacy, pair with self-hosted sync.

Notesnook (Privacy-First; Newer)

Pricing: Free tier (limited features), Plus plan $5.99/month ($72/year), Professional $15/month ($180/year).

Platforms: Web, iOS, Android, Windows, macOS, Linux.

Encryption: E2E encryption via TweetNaCl.js. Client-side encryption before upload.

Self-hosting: Not available yet. Cloud-only.

Strengths

• Privacy-first design: Founded 2020 by privacy engineers. Encryption is core, not an add-on.
• Web + mobile + desktop: Full app ecosystem. Web app is responsive.
• Modern UI: Clean, intuitive interface. Better than Joplin and Standard Notes.
• Rich editor: WYSIWYG + Markdown. Tables, embedded images, code blocks.
• Publishing: Publish encrypted notes as web page (recipient needs key).
• Biometric lock: Fingerprint/Face ID to unlock app.
• Zero-access: Even Notesnook team cannot access encrypted notes.

Weaknesses

• No self-hosting: All data on Notesnook’s servers. If company shuts down or is compromised, you have limited control.
• Newer = less battle-tested: Founded 2020. Encryption not yet audited by third-party (as of 2026).
• Smaller community: Fewer plugins and themes than Obsidian.
• Export is complex: Notes are encrypted; export requires decryption within app. No direct file export.

Security Audit Status

As of March 2026, Notesnook has not published a third-party security audit. This is a concern for enterprise/legal use. Standard Notes and Joplin have published audits.

Verdict

Notesnook is the modern alternative for privacy-conscious users. Better UI than Standard Notes, no self-hosting required. Risk: newer, unaudited. Good for personal use; avoid for legal/medical records until audit published.

Comparison Table

Quick Decision Matrix

Use Standard Notes if:

• Privacy is your absolute top priority.
• You want audited encryption.
• You don’t mind spending $8–20/month.
• You use Markdown for writing.

Use Joplin if:

• You want open-source and no cost.
• You’re comfortable with slower UI.
• You want full control via self-hosting.
• You need offline-first operation.

Use Obsidian if:

• You need powerful features (graph view, plugins).
• You’re willing to self-host for encryption.
• You want Markdown + customization.
• Cost is acceptable ($8/month for Sync).

Use Notesnook if:

• You want privacy with modern UI.
• You prefer cloud-only (no self-hosting).
• You’re okay with a younger company.
• You need web + mobile + desktop parity.

Cost Comparison (Annual)

Standard Notes Professional: $240/year (full features + encryption + advanced editor).

Joplin (cloud sync): $72/year (optional; free without).

Obsidian Sync: $96/year (optional; free without Sync).

Notesnook Professional: $180/year (all features including encryption).

Winner: Joplin (free) or Obsidian (free, without Sync).

For encryption + features: Notesnook ($180/year) or Standard Notes ($240/year).

Real-World Setup

Scenario 1: Private Journal for Therapist Notes

Use Standard Notes or Notesnook.

• E2E encryption mandatory.
• No self-hosting risk.
• Audit trail (Standard Notes) or biometric lock (Notesnook).
• Cost: $8–15/month. Worth privacy.

Scenario 2: Team Knowledge Base (Dev Team)

Use Joplin or Obsidian (self-hosted).

• E2E encryption not critical (team is trusted).
• Self-hosting gives full control.
• Offline work required (dev teams, occasional internet loss).
• Cost: $5/month (Joplin server) or free (Obsidian + git).

Scenario 3: Personal Notes + Published Blog

Use Notesnook or Obsidian.

• Publish feature needed (Obsidian Publish or Notesnook’s public links).
• Modern UI is a plus (Obsidian + themes, Notesnook’s design).
• Cost: $96–180/year.

Migration Between Apps

All four apps support export/import:

Standard Notes → others: Export as TXT or JSON via Extensions.

Joplin → others: Export as JEX (encrypted archive) or individual MD files.

Obsidian → others: Notes are plain Markdown. Copy folder to new app.

Notesnook → others: Export decrypts notes (in-app). Download as ZIP or MD files.

Easiest migration: From Obsidian (plain Markdown). Hardest: From Notesnook (decryption required).

Final Verdict (2026)

Privacy ranking: Standard Notes > Joplin > Notesnook > Obsidian (requires DIY).

Ease of use: Notesnook > Obsidian > Standard Notes > Joplin.

Overall recommendation:

• For privacy: Standard Notes ($240/year) or Notesnook ($180/year) if you want modern UI.
• For cost + privacy: Joplin (free, self-host).
• For features + privacy: Obsidian Sync ($96/year) + self-hosted sync setup.

If budget is no constraint and privacy is paramount: Standard Notes. If you’re frugal and technical: Joplin. If you want simplicity and modern design with privacy: Notesnook.