Note-taking
Verdict. The local-first knowledge base that treats your notes as plain files you own — the default pick for developers who want a second brain without lock-in.
What it is. A local-first note-taking app that stores every note as a plain Markdown file in a folder (a 'vault') on your own device, with bidirectional links, a graph view, and a large community plugin ecosystem.
Good.
- Notes are plain Markdown files — readable in any editor, version-controllable with Git, and never locked to Obsidian
- Huge plugin ecosystem (4,000+ community plugins) plus Canvas and Bases for visual and database views
- Free for personal use with no account required; fast even with very large vaults
Bad.
- No built-in sync — cross-device sync needs the paid Sync service or a DIY setup (iCloud, Dropbox, Git)
- Single-player by design: real-time collaboration is weak compared with Notion
- Getting the most from plugins takes setup; the interface can feel bare until you configure it
Best for. Developers building a personal knowledge base who value file ownership, offline access, and Markdown
Price: Free for personal use; Sync $4/user/mo billed annually ($5 monthly); Publish $8/site/mo; optional commercial licence $50/user/yr · Official site · Docs · Pricing
Verdict. The all-in-one workspace: notes, wikis, docs, and databases in one place — the best pick when your notes need to be shared and structured.
What it is. A hosted all-in-one workspace where pages, databases, wikis, and docs live together, with real-time collaboration, templates, and a large template community.
Good.
- Databases with views, filters, and relations turn notes into a lightweight app (docs, wikis, roadmaps, trackers)
- Real-time collaboration and sharing with guests; huge template gallery to start from
- Free plan is generous for solo use — unlimited blocks for a single-owner workspace
Bad.
- Your data lives in Notion's database, not in files you own; export is clunky for large workspaces
- Full Notion AI only comes on the Business tier — Free and Plus get only a limited trial
- Large databases can get slow; offline access is limited compared with local-first apps
Best for. Teams and individuals who want notes, docs, and wikis in one shared, structured workspace
Price: Free; Plus $10/user/mo billed annually ($12 monthly); Business $20/user/mo ($24 monthly); Enterprise custom · Official site · Help · Pricing
Verdict. The outliner-first, open-source second brain — great for daily journals and task-linked notes, rough around the edges for teams.
What it is. A free, open-source, local-first outliner for personal knowledge management: every note is a block in a Markdown/Org-mode graph, with daily journals, tasks, and queries built in.
Good.
- Outline-based writing with blocks, backlinks, and queries makes daily journals and task tracking natural
- Local-first Markdown/Org-mode files you own; free and open source (AGPL-3.0)
- Built-in PDF annotation, flashcards, and whiteboards without plugins
Bad.
- Sync is still in beta, via a $5/mo supporter contribution, with DIY alternatives (iCloud, Dropbox, Git) needing setup
- Smaller plugin ecosystem and less polish than Obsidian; occasional bugs and a slower release pace
- No real-time collaboration yet — team features are limited
Best for. Outliner fans who want a free, open-source daily journal and task-linked knowledge base
Price: Free / open source (AGPL-3.0); Sync in beta via a $5/mo supporter contribution · Official site · Docs
Verdict. The pragmatic open-source Evernote replacement — free, encrypted, and syncs anywhere, with a dated interface.
What it is. A free, open-source note-taking and to-do app for desktop, mobile, and terminal, with Markdown or rich-text editing, end-to-end encryption, and sync via Joplin Cloud, Dropbox, OneDrive, or WebDAV.
Good.
- Completely free app with no limits; syncs to any cloud you choose, with end-to-end encryption
- Web clipper, to-dos, tags, and notebooks cover the Evernote-style workflow
- Imports from Evernote and other apps; plugins and themes extend it
Bad.
- Interface looks dated next to Obsidian or Notion
- No backlinks or graph view out of the box — weaker for linked knowledge bases
- Official cloud sync is a separate paid plan (from €2.99/mo); collaboration is basic
Best for. Anyone who wants a free, private, encrypted Evernote-style notebook that syncs anywhere
Price: Free / open source (AGPL-3.0); Joplin Cloud from €2.99/mo (Basic), Pro €5.99/mo, Teams €7.99/user/mo · Official site · Help · Pricing
Verdict. The privacy-first notebook: end-to-end encrypted by default, simple to a fault, and the safest place for sensitive notes.
What it is. An open-source, end-to-end encrypted notes app for desktop, mobile, and web, built around zero-knowledge privacy: even Standard Notes cannot read your notes.
Good.
- End-to-end encryption on by default, including the free plan; independently audited, open-source apps
- Syncs across all devices with offline access, tags, and full data export
- Deliberately simple and fast — a clean writing surface with no distractions
Bad.
- Free plan is plain-text only — Markdown, rich text, and folders need a paid plan
- No backlinks, graph view, or databases — weak as a linked knowledge base
- Extension ecosystem is small compared with Obsidian or Logseq
Best for. Anyone whose notes are sensitive and who wants encryption-first, audited privacy above all
Price: Free (Standard plan); Productivity $90/yr; Professional $120/yr · Official site · Help · Pricing
Verdict. The offline-first, object-based workspace with the strongest privacy story — powerful and unusual, with a steep learning curve.
What it is. A local-first, peer-to-peer note-taking and knowledge-management app where everything is an 'object' (note, task, person, project) with types and relations, synced with end-to-end encryption and no central server.
Good.
- True local-first with peer-to-peer sync and end-to-end encryption — no account or central server required
- Object-based model with types, relations, and sets makes structured personal wikis natural
- Free plan includes sync, backup, and small-group collaboration
Bad.
- Steep learning curve — the object model is a different way of thinking from pages and folders
- Smaller community and fewer integrations than Notion or Obsidian
- Paid plans (Builder $99/yr, Co-Creator $299/3 yrs) are needed for more storage and larger shared spaces
Best for. Privacy-minded builders who want a structured, object-based knowledge base without a cloud account
Price: Free (Explorer); Builder $99/yr; Co-Creator $299/3 yrs; Business custom · Official site · Docs · Pricing
Verdict. The open-source Notion alternative you can self-host — the closest free equivalent to Notion's databases, still maturing.
What it is. An open-source, Notion-style workspace with pages, databases, boards, and AI features, built in Rust and Flutter; self-host it for free or use AppFlowy Cloud.
Good.
- Notion-like pages and databases, fully open source, with a free self-hosted option for total data control
- Cross-platform (desktop, mobile, web) with offline support and local AI model options
- Free cloud plan includes unlimited pages and blocks with 5 GB storage
Bad.
- Younger and less polished than Notion — fewer templates, integrations, and advanced database features
- Smaller community, so fewer guides and third-party tools
- Pro plan ($10/mo) is per workspace, and some AI features are paid add-ons
Best for. Teams who want Notion-style workspaces but need open source and self-hosting
Price: Free / open source; AppFlowy Cloud free tier; Pro $10/mo billed annually ($12.50 monthly); self-host free · Official site · Docs · Pricing
Verdict. The object-based studio for visual thinkers — beautiful, calm, and great for connected notes, but a one-person show with no real collaboration.
What it is. A note-taking app built around typed objects (notes, people, books, ideas) connected in a visual graph, with a calm writing experience, daily notes, and an AI assistant on Pro.
Good.
- Object-based notes with a visual graph and collections feel natural for research and creative work
- Free plan is genuinely full-featured: unlimited spaces, objects, sync, and offline support
- Clean, calm interface with media uploads, calendar integration, and an AI assistant (Pro)
Bad.
- No real-time collaboration — sharing is view-only; not a team tool
- Closed source and cloud-based, so no local files or self-hosting
- Smaller ecosystem than Obsidian or Notion; Pro ($9.99/mo) gates the AI assistant and task management
Best for. Solo researchers, writers, and visual thinkers who want connected, object-based notes
Price: Free (Basic); Pro $9.99/mo; Believer from $12.49/mo · Official site · Docs · Pricing