CrossLine vs outl
CrossLine
github.com
outl
outl.appSide by side
| Figure | CrossLine | outl |
|---|---|---|
| Price from | Free | Free |
| Free plan | Yes | Yes |
| Free trial | — | — |
| Open source | — | Yes |
| Windows | Yes | Yes |
| macOS | Yes | Yes |
| Linux | Yes | Yes |
| iOS | — | Yes |
| Android | — | Yes |
| API | — | Yes |
| Self-hosted | — | Yes |
| Plans published | 1 | 2 |
| Spec score · Outliner Software | 8.6 (#5) | 8.5 (#8) |
| License | The repository lists GPL-2.0 and GPL-3.0 licenses. | The source code is released under the MIT License. |
| Product | CrossLine is an outliner with cross-link capabilities, in the tradition of Ecco Pro. | outl is a local-first outliner and bullet-point note-taking app that stores plain Markdown on disk. |
| Support | The author directs users to the GitHub issue list or to email for support, issues, and feature requests. | Users are directed to Discord for questions and GitHub issues for bugs. |
| What it does | CrossLine is an outliner with cross-link capabilities, transclusion, and a built-in full-text search engine. | outl is a local-first Markdown outliner and daily-journal application whose tree data is synchronized between devices. |
Plans
In their own words
CrossLine
CrossLine is a free, open-source outliner for Windows, Linux, and macOS. It arranges text as parent, child, and subtopic nodes that can be collapsed or expanded, and supports cross-links and Ted Nelson’s transclusion concept. CrossLine also works as a full-text database with a built-in search engine; Lucene can be added as an optional alternative when building the application. Navigation includes search, history, and back/forward controls, with backlinks supported. HTML and CLDX are listed export formats. Precompiled downloads cover Windows and Linux in x86 and x64 versions, plus Mac x64 and M1. The compressed executable can be unpacked and run without installation or special privileges. The README says the Windows build runs on Windows 7 without a separate Microsoft runtime. On Mac, startup requires the context menu’s open command. The project links to a demo repository, provides source-build instructions using LeanQt, and directs support questions to GitHub issues or email. Licenses listed are GPL-2.0 and GPL-3.0.
outl
outl is a free, local-first outliner and bullet-point note app that stores plain Markdown files on disk. Its nested blocks, wiki-style links, backlinks, tags, and daily journal support structured note-taking. Stable block IDs and metadata are kept in sidecar files rather than the Markdown notes. Notes can be edited offline, and devices on the same Wi-Fi can sync directly without internet; device syncing uses peer-to-peer end-to-end encryption and does not require an account or cloud. Markdown code blocks can run Python, JavaScript, Lua, and Rust, with Lisp available behind a build flag. An MCP server lets compatible hosts including Claude, Cursor, Zed, and ChatGPT read and write local notes. Native desktop builds are listed for macOS, Linux, and Windows, alongside iOS TestFlight and Android APK beta builds. The product is pre-1.0, and the download page describes builds as public beta. The macOS desktop DMG is currently unsigned. An optional Docker deployment can run an always-on peer with a full replica of notes. Export formats include Markdown, JSON, and Hugo; navigation includes search, a fuzzy switcher, and a command palette.