
Mengram
Supermemory
Byterover
Pieces for Developers
OpenMemory
Mem
Second Brain for AI
Mnexium AI
SeqLog
Logseq
Obsidian.md
Roam Research
SeqLog is a native macOS outliner for people who want their notes to stay ordinary files.
Every note is a plain Markdown file in a folder you choose. There is no database and no proprietary format, so ripgrep, git, or any other tool on the machine reads exactly the same bytes. Full text search runs over the folder itself, so there is no index to rebuild or corrupt.
A daily journal and named pages sit side by side. Wikilinks connect them and every page lists the blocks that link to it. A command palette searches page names and file contents together.
Git is embedded rather than shelled out. Edits are committed in the background, the history panel expands each commit into an inline diff, and any single file can be reverted on its own.
It opens an existing Logseq vault in place, because it uses the same journals/ and pages/ folder layout. Nothing to import, nothing to convert.
Written in Swift on AppKit rather than Electron. Free for macOS.
Mengram
SeqLogSupermemory - ai second brain for all your saved stuff
Logseq - Logseq is a local-first, non-linear, outliner notebook for organizing and sharing your personal knowledge base.
Byterover - Memory layer for smarter AI coding agents
Obsidian.md - A second brain, for you, forever. Obsidian is a powerful knowledge base that works on top of a local folder of plain text Markdown files.
Pieces for Developers - Centralized code snippet manager to streamline your workflow
Roam Research - A note-taking tool for networked thought