SeqLog

SeqLog is a native macOS outliner in the Logseq and Roam lineage, built from scratch with SwiftUI, AppKit and Rust rather than Electron.

Plain Markdown files are the only data store. There is no database, no cache and no search index — a vault is a folder of .md files using CommonMark and wikilinks, organised as pages/ and journals/. Anything that can read and write files, from another editor to a shell script to an AI coding agent, can work on the same notes, and SeqLog picks up external edits automatically.

Full-text search, backlinks, unlinked references and page-name lookup all run through a Rust ripgrep FFI that greps the files on each query, so nothing has to be rebuilt and nothing goes stale.

Git is embedded through libgit2 and acts as the sync layer: auto-commit on save, push and pull to any remote, branch switching, conflict resolution, commit history with inline diffs, and revert down to a single file. No git binary is required.

The editor is a keyboard-first outliner — indent, collapse, multi-select, drag to reorder across pages, with symmetric undo and redo. A daily journal is the front door. There is a command palette, a find bar that reaches across every journal day, image drag-and-drop with a lightbox, code fences, tags and checkboxes.

Rows are drawn directly with CoreText on a recycled list with absolute-frame layout, so a vault with thousands of journal days scrolls at full frame rate.

Free forever on macOS for personal and commercial use. No account, no telemetry, no cloud service. macOS 15 or later, Apple Silicon or Intel. Signed and notarized, with updates through Sparkle.