Heptabase costs $8.99/mo.
These cost $0.
3 free alternatives to Heptabase, checked for license, recent activity and real adoption. Each one tells you the catch, so you can switch with your eyes open.
Heptabase vs Free Alternatives Matrix
Quick side-by-side comparison · $0/mo vs $8.99/mo
| Alternative | Type | License | Where It Runs | Stars | Head-to-Head |
|---|---|---|---|---|---|
| Logseq | open source | AGPL-3.0 | Local or hosted | ★ 44k | Heptabase vs Logseq → |
| AFFiNE | free | MIT AND MPL-2.0 | Local or hosted | ★ $0 forever | Heptabase vs AFFiNE → |
| Obsidian | free | proprietary, free | Local | ★ $0 forever | Heptabase vs Obsidian → |
The picks
1 open source · 2 free to use · ranked by fit
- 01
Logseq
open sourceAGPL-3.0Local or hosted44kaug 2026Cards, block links and whiteboards for sense-making, with rougher furniture.
The catch vs HeptabaseIts links and whiteboards are powerful, but whiteboard polish, mobile experience, and performance are rougher, while the newer database path still carries beta risk.
Install, platforms & data +
- platforms
- desktopmobileone-click install
- install
- Download the desktop/mobile release or use the hosted web app; no server is required for a local graph
- setup
- Stable local installation is simple, but the visually stronger DB graph/RTC path is still beta or alpha and explicitly carries data-loss warnings; free cross-device file-graph sync requires choosing and safely operating a third-party file-sync method
- your data
- Classic file graphs are folders of Markdown or Org-mode files plus Logseq configuration/cache files and can be synced with a file service; the newer DB graph stores the graph in a local SQLite database, while optional Logseq Sync/RTC sends graph data to Logseq's service
- checked
- 2026-08-14
- 02
AFFiNE
freeMIT AND MPL-2.0Local or hostedDocuments and an infinite canvas in one local-first app, without the research tax.
The catch vs HeptabaseIt offers documents and an infinite canvas, but its canvas is less specialized for research cards, spatial synthesis, and guided sense-making than Heptabase's.
Install, platforms & data +
- platforms
- desktopmobilewebself-hostedone-click install
- install
- Use AFFiNE Cloud or install the desktop app; self-hosted collaboration uses the official Docker Compose stack with AFFiNE, PostgreSQL, and Redis
- setup
- The desktop app is straightforward, but free self-hosted sync and collaboration require Docker, PostgreSQL, Redis, persistent volumes, configuration, migrations, backups, and a correctly exposed server URL
- engines
- AFFiNE AI supports bring-your-own-key routes for OpenAI, Anthropic, Gemini, and FAL; local storage is available in the desktop app, while self-host AI is configured server-side
- your data
- A local-only desktop workspace stays on that device; AFFiNE Cloud stores it in AFFiNE's service, while self-hosted workspaces use PostgreSQL for structured data, mounted blob storage for uploads, Redis for cache, and local configuration files
- checked
- 2026-08-14
- 03
Obsidian
freeproprietary, freeLocalCanvas boards backed by linked Markdown files and an enormous plugin drawer.
The catch vs HeptabaseCanvas supplies free-form boards, but it lacks Heptabase's purpose-built card workflow, research structure, and guided visual knowledge experience.
Install, platforms & data +
- platforms
- desktopmobileone-click install
- install
- Install the native Windows, macOS, Linux, iOS, or Android app; no account is required for local use
- your data
- Ordinary Markdown files and attachments in a user-chosen local vault folder, with app settings and plugins under `.obsidian`; optional paid Obsidian Sync stores end-to-end-encrypted replicas in Obsidian's cloud
- checked
- 2026-08-14
Frequently Asked Questions
Direct answers · Heptabase open-source replacements
What is the best free alternative to Heptabase?+
The top free alternative to Heptabase is Logseq (open source, AGPL-3.0). Cards, block links and whiteboards for sense-making, with rougher furniture. Other popular Heptabase replacements include AFFiNE, Obsidian.
Can I self-host a free replacement for Heptabase?+
Yes. Of the 3 free alternatives to Heptabase, 2 can be self-hosted on your own server or local machine: Logseq (AGPL-3.0), AFFiNE (MIT AND MPL-2.0).
How much does switching from Heptabase to a free alternative save?+
Heptabase starts at $8.99/month per seat ($108/year). Switching a 5-person team to a free alternative like Logseq saves $539 per year in software subscription fees.
Should I vibe-code or build my own Heptabase clone from scratch?+
Our build verdict for Heptabase is YES (the core loop fits in a weekend). Heptabase's solo core is compact: build a local-first visual knowledge mapping app with fast capture, full-text search, backlinks, tags, and Markdown export. A competent builder can reach a useful personal version in one sitting, while the paid product mainly wins on polish, sync, importers.
What is the catch when switching from Heptabase to Logseq?+
Its links and whiteboards are powerful, but whiteboard polish, mobile experience, and performance are rougher, while the newer database path still carries beta risk.
