Catalog
Explore and compare curated open-source alternatives. Filter by platform, licensing, or deployment mode to find your perfect fit.
41 tools found
AppFlowy
AppFlowy is an open-source, local-first alternative to Craft and Notion that provides block editing, Kanban boards, and offline databases with zero fees.
78.1kLinuxmacOSWindows7d ago
AGPL-3.0Personal Notes
Joplin
Joplin is an open-source, encrypted note-taking app that replaces Evernote with offline-first Markdown, terminal CLI access, and flexible self-hosted sync.
57.0kLinuxmacOSWindows1d ago
MITPersonal Notes
Logseq
Logseq is an open-source, local-first outliner and personal knowledge base that replaces Roam Research with private, bidirectional markdown notes.
45.5kLinuxmacOSWindows2d ago
AGPL-3.0Personal Knowledge Management (PKM)
Open-Notebook
Open-Notebook is a self-hosted alternative to NotebookLM for document research, offering multi-model support, private data storage, and custom podcasts.
41.5kWeb2d ago
MITPersonal Knowledge Management (PKM)
Trilium Notes
Trilium Notes is an open-source personal knowledge base replacing Evernote with deep hierarchical note trees, note cloning, and private local storage.
38.7kLinuxmacOSWindowstoday
AGPL-3.0Personal Notes
Hoarder
Hoarder is an open-source bookmark and read-it-later tool replacing Raindrop with self-hosted privacy, local AI tagging, and full-page web archiving.
30.2kLinuxmacOSWindows2d ago
AGPL-3.0Bookmarks & Read-it-Later
EasyPThe modern standard for Protobuf workflows
Lint, codegen, breaking-change checks and dependency management in one Git-native CLI. Open source, no registry lock-in.
lintgeneratebreakingeasyp.lock
easyp.tech
Tolaria
Tolaria is an open-source desktop markdown note-taking app with built-in Git versioning, opinionated note types, and local AI agent context.
20.4kLinuxmacOSWindowstoday
AGPL-3.0Personal Notes
Foam
Foam turns VS Code into an open-source personal knowledge base with bi-directional wikilinks, graph navigation, and Git-backed Markdown storage.
17.5kLinuxmacOSWindows5d ago
MITPersonal Knowledge Management (PKM)
Scalar
Open-source offline-first API platform and Postman alternative that turns OpenAPI specs into interactive documentation and local request runners.
16.4kDockerLinuxmacOStoday
MITDocs & Wikis
Notesnook
Notesnook replaces Evernote with an open-source note-taking app that provides multi-device sync, rich formatting, and local zero-knowledge encryption.
14.9kLinuxmacOSWindowstoday
GPL-3.0Personal Notes
Gollum
Gollum is a Git-powered wiki replacing SaaS tools like Slab with local plain text files, version control, and multi-format markup support.
14.3kLinuxmacOSWindows11mo ago
MITDocs & Wikis
Fumadocs
Fumadocs is an open-source React docs framework replacing hosted platforms like Mintlify with modular Next.js MDX components and native search.
13.5kWebtoday
MITDocs & Wikis
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