Heptabase alternatives · Note-Taking
Open-source alternatives to Heptabase
Heptabase is not described as open source on its own site. 50 of the 146 other note-taking apps in this directory are open source, according to their own sites.
Heptabase is a paid product with a free trial, starting at $8.99 per month, billed yearly ($107.88). All of them are free or have a free plan.
50 tools · Listings checked up to Oct 9, 2026 · Where the facts come from
The 12 closest to Heptabase
- Free plan · from $5/mo
Logseq
Open-source outliner for linked notes stored as local files
- Logseq starts at $5 per month for Open Collective backers, which unlocks Logseq Sync. Heptabase starts at $8.99 per month, billed yearly ($107.88).
- Logseq has a free plan. Heptabase does not, though it has a free trial.
- Only Heptabase lists a browser extension.
- Logseq is open source, according to its own site.
- Free plan · from $3.99/mo
DeepNotes
End-to-end encrypted infinite canvas for nested notes
- DeepNotes starts at $3.99 per month, billed yearly ($47.88). Heptabase starts at $8.99 per month, billed yearly ($107.88).
- DeepNotes has a free plan. Heptabase does not, though it has a free trial.
- Only Heptabase lists iOS and Android apps.
- Only Heptabase lists a browser extension.
- Free plan · from $9.99/mo
Reflect
Open-source daily notes app with backlinks and local Markdown
- Reflect starts at $9.99 per month, or $99 per year, for the iPhone and iPad app. Heptabase starts at $8.99 per month, billed yearly ($107.88).
- Reflect has a free plan. Heptabase does not, though it has a free trial.
- Only Heptabase lists a web app.
- Only Heptabase lists Windows, Linux and Android apps.
- Free
Tolaria
Free, open-source desktop app for Markdown knowledge bases
- Tolaria is free. Heptabase starts at $8.99 per month, billed yearly ($107.88).
- Tolaria has a free plan. Heptabase does not, though it has a free trial.
- Only Heptabase lists a web app.
- Only Heptabase lists iOS and Android apps.
- Free plan · from $1.99/mo
GitJournal
Mobile Markdown notes app that syncs through any Git repository
- GitJournal starts at $1.99 per month in installments, or $31.99 one-time (US App Store minimums). Heptabase starts at $8.99 per month, billed yearly ($107.88).
- GitJournal has a free plan. Heptabase does not, though it has a free trial.
- Only Heptabase lists a web app.
- Only Heptabase lists macOS, Windows and Linux apps.
- Free
Zavala
Free open-source outliner for Mac, iPhone and iPad
- Zavala is free. Heptabase starts at $8.99 per month, billed yearly ($107.88).
- Zavala has a free plan. Heptabase does not, though it has a free trial.
- Only Heptabase lists a web app.
- Only Heptabase lists Windows, Linux and Android apps.
- Free
Simplenote
Free plain-text notes that sync across every major platform
- Simplenote is free. Heptabase starts at $8.99 per month, billed yearly ($107.88).
- Simplenote has a free plan. Heptabase does not, though it has a free trial.
- Only Heptabase lists a browser extension.
- Simplenote is open source, according to its own site.
- Free plan · from $6/mo
AppFlowy
Open-core workspace for docs, wikis and projects you can self-host
- AppFlowy starts at $6 / month, billed annually (self-hosted One); cloud Pro is $16 per member. Heptabase starts at $8.99 per month, billed yearly ($107.88).
- AppFlowy has a free plan. Heptabase does not, though it has a free trial.
- Only Heptabase lists a browser extension.
- AppFlowy is open source and self-hostable, according to its own site.
- Free plan · from $6.75/mo
AFFiNE
Open-source workspace that merges docs, whiteboards and databases
- AFFiNE starts at $6.75 per month, billed annually. Heptabase starts at $8.99 per month, billed yearly ($107.88).
- AFFiNE has a free plan. Heptabase does not, though it has a free trial.
- AFFiNE is open source and self-hostable, according to its own site.
- AFFiNE also covers databases.
- Free
TiddlyWiki
Open-source personal wiki kept in a single HTML file
- TiddlyWiki is free. Heptabase starts at $8.99 per month, billed yearly ($107.88).
- TiddlyWiki has a free plan. Heptabase does not, though it has a free trial.
- Only Heptabase lists iOS and Android apps.
- Only Heptabase lists a browser extension.
- Free
Tangent Notes
Open-source Markdown notes app that maps the path between notes
- Tangent Notes is free. Heptabase starts at $8.99 per month, billed yearly ($107.88).
- Tangent Notes has a free plan. Heptabase does not, though it has a free trial.
- Only Heptabase lists a web app.
- Only Heptabase lists iOS and Android apps.
- Free
Beaver Notes
Open-source, local-first Markdown notes app for desktop
- Beaver Notes is free. Heptabase starts at $8.99 per month, billed yearly ($107.88).
- Beaver Notes has a free plan. Heptabase does not, though it has a free trial.
- Only Heptabase lists a web app.
- Only Heptabase lists iOS and Android apps.
38 more that are open source
- Cryptee
- Lockbook
- Linwood Butterfly
- NoteGen
- Bangle.io
- SilverBullet
- QOwnNotes
- Zim
- Stylus Labs Write
- MindForger
- Joplin
- Standard Notes
- Notesnook
- Trilium Notes
- SiYuan
- Xournal++
- Memos
- FSNotes
- Mimiri Notes
- FUTO Notes
- Markor
- Fossify Notes
- MiaoYan
- Notenik
- Blinko
- flatnotes
- Jotty
- NoteDiscovery
- CherryTree
- Marknote
- Saber
- Rnote
- Orgzly Revived
- Quillpad
- NotallyX
- VNote
- KeyNote NF
- TreeSheets
Common questions
Is there an open-source alternative to Heptabase?
Yes. Logseq, DeepNotes, Reflect, Tolaria, GitJournal, Zavala, Simplenote, AppFlowy and 42 more are open source, according to their own sites.
Is Heptabase open source?
Heptabase is not described as open source on its own site. The listing was checked on Oct 4, 2026 against the pages it cites.
When was this checked?
Each listing shows its own date. On this page they run from Oct 4, 2026 to Oct 9, 2026. Vendors change prices and plans without notice, so confirm on their site before you buy.
This page is built from the listings. A tool is here because its listing says so, and the order is how close each is to Heptabase: the alternatives its listing names first, then the tools that share the most features with it.