What is the best free alternative to Glean?
NotebookLM is the closest free alternative to Glean: same AI Note-Taking & Docs sub-category, and it is free tier + paid. Grounded answers from your own sources
Best free Glean alternatives
Looking for a free alternative to Glean? Here are 10 ai note-taking & docs worth trying — 10 with a free tier. Glean itself is paid.
| Tool | Glean (you searched) | NotebookLM | AFFiNE | Blinko |
|---|---|---|---|---|
| Pricing | paid | freemium | free | free |
| Best for | Enterprise Work AI platform searching across all connected company systems | Grounded answers from your own sources | Open-source workspace that merges docs, whiteboards and databases | Self-hosted personal note tool with AI retrieval over your notes (RAG) |
| Visit | Open ↗ | Open ↗ | Open ↗ | Open ↗ |
Glean alternatives — straight answers
Are there free Glean alternatives?
Yes — 10 of the 10 alternatives listed here are free or freemium: NotebookLM, AFFiNE, Blinko, Karakeep, Notion AI. None of them are paid-only.
Is Glean free?
Glean is paid. That is why this page exists: the free and freemium options are listed first below.
How were these Glean alternatives chosen?
They are the other tools in AI Note-Taking & Docs, then the rest of Productivity & Workflow, ordered free tiers first and capped at 10. There is no sponsorship and no paid placement in that ordering — only the pricing tier decides.
All Glean alternatives
Browse AI Note-Taking & Docs →NotebookLM
Deep Research & Documents
✦ WhyA Glean alternative — Grounded answers from your own sources.
- Grounded answers from your own sources
- Audio Overviews (podcast-style)
- Mind maps and study guides
- Free tier available
✦ WhyA Glean alternative — Open-source workspace that merges docs, whiteboards and databases.
- Open-source workspace that merges docs, whiteboards and databases
- AI assistant for writing, mind maps and slides in the workspace
- Free to self-host
- Local-first with offline editing
✦ WhyA Glean alternative — Self-hosted personal note tool with AI retrieval over your notes (RAG).
- Self-hosted personal note tool with AI retrieval over your notes (RAG)
- Lightweight card-style notes similar to flomo
- Free and open source
- Runs with your own model keys
✦ WhyA Glean alternative — Self-hosted bookmark and notes app that auto-tags saved links with AI.
- Self-hosted bookmark and notes app that auto-tags saved links with AI
- Full-text search plus archived pages and screenshots
- Works with OpenAI or local Ollama models
- Free and open source
Notion AI
AI Note-Taking & Docs
✦ WhyA Glean alternative — AI across docs, wikis, databases and projects.
- AI across docs, wikis, databases and projects
- Cross-document Q&A and writing
- Connectors to Slack, Drive and more
- Free personal plan
Mem
AI Note-Taking & Docs
✦ WhyA Glean alternative — Self-organizing, AI-first notes.
- Self-organizing, AI-first notes
- Auto-tagging and smart search
- Chat with your knowledge base
- Free tier
Coda AI
AI Note-Taking & Docs
✦ WhyA Glean alternative — Docs that combine text, tables and apps.
- Docs that combine text, tables and apps
- AI to summarize, draft and automate
- Coda Brain across your workspace
- Free plan available
Craft
AI Note-Taking & Docs
✦ WhyA Glean alternative — Beautiful native-feel docs with whiteboards, tasks, calendar in one app.
- Beautiful native-feel docs with whiteboards, tasks, calendar in one app
- AI assistant with Core/Fast/Max model tiers
- Deep integrations with Claude, ChatGPT, Cursor
Capacities
AI Note-Taking & Docs
✦ WhyA Glean alternative — Object-based (not page-based) note model with typed content.
- Object-based (not page-based) note model with typed content
- Core product free forever per vendor policy
- AI assistant, smart queries, calendar integration on Pro
Tana
AI Note-Taking & Docs
✦ WhyA Glean alternative — Supertags turn notes into structured, queryable objects.
- Supertags turn notes into structured, queryable objects
- Multi-LLM support (Claude, Gemini, OpenAI) inside one graph
- Free tier includes AI meeting transcripts and 50 AI queries/mo