Bring projects, wikis, and teams together with AI
Project ManagementFree plan available
- Autofill Tables
- Intelligent Insights
- Customizable Views
Best Obsidian Alternatives in 2026
23 similar tools you can use instead of Obsidian, with pricing and key features.
Obsidian
Sharpen your thinking
Knowledge BaseFrom $5USD / Per user, per month, billed monthly
- Offline access
- Plugin and theme customization
- Open file formats and data ownership
- End-to-end encrypted sync with version history
Obsidian alternatives
The First Knowledge Portal Platform
Knowledge BaseFrom $80 / per month
- Branches
- Variables
- Publish to Your Domain
A beautiful, flexible writing app for crafting notes and prose
Notes
- Seamless Markdown
- Organize easily
- iCloud sync
Build your APIs as a team
DocumentationFrom $50 / month
- Docs that match your API
- Changelog & change detection
- MCP platform & hosting
Your all-in-one collaborative workspace
CollaborationFree plan available
- Docs and Apps in One
- Dynamic Tables and Sync
- Automation and Formulas
A fresh take on documents
NotesFree plan available
- Templates
- Whiteboards
- Write with AI
Your notes. Organized. Effortless.
Knowledge BaseFree plan available
- Notes
- Tasks
- Calendar
Your self-organizing workspace and file explorer
Knowledge BaseAI
- Voice notes
- Quick notes
- Instant capture
One workspace for a whole product company
Business OperationsFree plan available
- Databases
- Views
- Permissions
Where technical teams document
DocumentationFree plan available
- AI-Optimized Documentation
- User-Adaptive Rendering
- API & Product Docs Support
A privacy-first, open-source knowledge base
Knowledge BaseOpen Source
- Linked References
- Queries
- Flashcards
Your AI chief of staff
AgentsAI
- Capture & organize
- Web capture
- Meeting transcription & notes
The Intelligent Documentation Platform
DocumentationFree plan availableAI
- AI Integration
- Self-updating Knowledge Management
- Intelligent User Assistance
The AI workspace that works for you
Knowledge BaseFree plan availableAI
- AI Agent
- Universal search
- Collaborative toolkit
The easy knowledge base for teams
Knowledge BaseFree plan available
- Instant Search
- Unified Knowledge Base
- AI Sidekick
Your team’s knowledge base
Knowledge BaseFrom $10 per month / monthly
- Intuitive editing experience
- Real-time collaboration
- Powerful search & AI Q&A
Beautiful, personalized, interactive docs
DocumentationFree plan available
- Interactive Documentation
- Versioning & Access Control
- Customizable Pages & Theming
Think better with Reflect
NotesAI
- Sync Across Devices
- Backlinked Networked Notes
- Reflect AI Assistant
The simplest way to keep notes
Notes
- Real-time syncing
- Markdown support
- Tags and instant search
Knowledge Base & Wiki Software
Knowledge BaseFree plan available
- Create
- Organize
- Search
One Combined Workspace. All Your Team Documentation
Knowledge BaseFrom $10 / per user/month
- Document Verification
- Bulk Document Management
- AI-Suggested Actions
High-Quality, Interactive API Docs
DocumentationFree plan available
- Docs on Autopilot
- Collaboration
- Branding & Customization
The extension for your mind
Knowledge BaseFrom $4.99 / monthly
- AI-Powered Organization
- Private All-in-One Vault
- Associative Search with Visual Cues
Frequently Asked Questions
What is Obsidian?
Obsidian is a Knowledge Base tool: Sharpen your thinking. Paid plans start from $5USD / Per user, per month, billed monthly. Key features include Offline access, Plugin and theme customization, Open file formats and data ownership and End-to-end encrypted sync with version history.
Are there free alternatives to Obsidian?
Yes. AppFlowy, Coda, Craft, Evernote, Fibery and 7 others have a free plan.
Is there an open-source alternative to Obsidian?
Yes. Logseq is open source.