Best Outliner Apps in 2026 — Integrity

The outline is one of the oldest ideas in writing, and one of the most durable. Long before software, people drafted arguments as nested bullets — a thesis, its supporting points, the evidence under each. An outliner app takes that shape and makes it live: fold a branch to hide the detail, drag a node to reorder the argument, zoom into one point when the rest is noise. The structure is not decoration around the document. The structure is the document.

In 2026 the category has split into distinct camps. Some apps stay close to the pure outline. Some wrap the outline in a knowledge graph. Some keep everything in local files you own forever. And a few — including the app we build, Integrity — treat the outline as one view of a single underlying tree, where a line, a task, a canvas card, and a whole document are the same node seen differently.

This is an honest tour of the field, with a clear note on who each app is for.

Workflowy — the purest outline

Workflowy is the outliner reduced to its essence: one infinite bullet list, nested as deeply as you like, synced across web, desktop, and mobile. There is almost nothing to configure, which is the point. You open it and you type. The free “Basic” tier allows 100 new nodes per month; Pro removes the cap at $6.99/month billed annually (or $8.99/month billed monthly).

Its restraint is a real strength. If you have ever bounced off a “second brain” tool because it demanded setup before it earned its keep, Workflowy is the antidote. It also holds up under load — deeply nested lists stay fast and legible where heavier apps start to feel like furniture.

Logseq — the local-first outliner

Logseq is a privacy-first, open-source outliner built on plain files. Every bullet is a discrete block that can be linked, tagged, queried, or embedded anywhere in your graph, and your notes live on your device as Markdown or Org-mode files — no cloud required by default. It leans into bidirectional links and a graph view, so an outline written for one purpose quietly becomes a node in a larger web of thought.

Through 2025 and early 2026 the team began rolling out a major architectural pivot: a SQLite-backed database version, now in beta, with a new real-time collaboration (RTC) sync that is still in early testing. Logseq is the natural pick for people who think in structured lists and refuse to give up file ownership: developers keeping technical notes, researchers building literature reviews.

Roam Research — networked thought

Roam popularized the modern outliner-plus-backlinks model and still describes itself as “a note taking tool for networked thought.” Its outline blocks, block references, and daily-notes workflow trained a generation of note-takers to link ideas rather than file them. Roam is a paid subscription tool, and it offers a distinctive multi-year “Believer” plan for people who want to bet on the tool for years.

Roam’s community energy is quieter than it was at its 2020 peak, and several ideas it pioneered now appear elsewhere. But if bidirectional linking is the feature you organize your thinking around, Roam is where that idiom was refined.

Obsidian — files first, outline optional

Obsidian is not primarily an outliner; it is a Markdown note app built on local plain-text files, with linking, a graph view, and an infinite Canvas for laying ideas out spatially. Outlining is available through community plugins rather than as the core metaphor. The core app is free without limits and requires no sign-up; Sync and Publish are optional paid add-ons.

Its defining strength is ownership and extensibility. Thousands of community plugins mean you can bend Obsidian toward almost any workflow, and because your vault is just files, you are never locked in. If you want a durable, hackable home for notes and are willing to assemble your own outliner on top, Obsidian rewards the investment.

Tana — the agentic workspace

Tana grew out of a supertag-driven outliner — now renamed Tana Outliner — and has since repositioned as an agentic meeting platform: a workspace where your team, your agents, and your shared context meet. It offers a native, embedded video call with real-time transcription, AI agents configured through natural-language “skills,” and a collaborative context graph that AI and humans can both edit. It connects out via OAuth to tools like GitHub and Linear, and exposes an MCP server so assistants like Claude Code can read and write workspace content.

Tana is ambitious and genuinely novel. It is aimed at teams that want AI acting inside the workspace during meetings, not a solo note-taker looking for a tidy list.

Integrity — one node, many views

We build Integrity, so read this section with that in mind — but the design idea is specific enough to judge on its merits.

In Integrity, everything is a node in one tree. A line of text, a heading, a task, a sticky note on a canvas, a meeting, a full document — all the same kind of unit. Turn a line into a heading or into a document without copying it anywhere; it is still one node, shown differently. That is the whole thesis, and the tagline that follows from it: keep the thread.

From that base, the shipped features compound:

• Canvas. Pull nodes onto a canvas, arrange and connect them, add sticky notes — the same nodes that live in your outline, now spatial.
• Supertags as databases. Tag a node and it becomes a row you can view as a board, a table, or a timeline. It is the same node through different views, not a copy in a separate database.
• AI that builds artifacts. The AI reads your whole workspace and produces editable artifacts — plans, decks, databases — as real nodes. You then edit them by hand, because they were never a locked export.
• Meetings as nodes. Record with a live transcript; your sparse notes become the scaffold, and AI writes clean notes. The meeting is a node you can reference later from anywhere in the tree.
• Publishing and collaboration. Publish any page to the web with analytics, and edit together in real time over CRDTs.
• Integrations. Telegram is shipped, and MCP connections let AI assistants like Claude Code work against your workspace.

We do not publish pricing here to avoid it going stale — see integrity.sh.

How they compare

Who should pick which

Pick Workflowy if you want to start outlining in the next thirty seconds and never think about configuration. Pick Logseq or Obsidian if owning your files locally is non-negotiable — Logseq if the outline is your primary metaphor, Obsidian if you want a plain-text base you extend with plugins. Pick Roam if bidirectional linking is the center of how you think. Pick Tana if you want AI agents acting inside team meetings and shared context.

Pick Integrity if the thing that frustrates you about the others is the copying — exporting an outline into a slide tool, retyping notes into a database, rebuilding a plan the AI “generated” but you cannot edit. Integrity’s bet is that one node, viewable as an outline line, a board row, a canvas card, or a document, keeps the thread from your first bullet to your finished artifact. That is a strong opinion, and it will not fit everyone. But it is the one problem the rest of this list mostly leaves on the table.

Frequently asked

What is an outliner app?

An outliner is a tool where your writing lives in nested bullets or nodes instead of flat pages. You can fold a branch to hide detail, drag a node to reorganize, and zoom into any point to focus. The structure is the document — headings, tasks, and notes are all the same kind of unit at different depths.

Which outliner is best for a beginner?

Workflowy. It is a single infinite bullet list with almost no configuration, so you can start typing in seconds. Its free Basic tier allows 100 new nodes per month, which is enough to decide whether outlining fits how you think before you pay anything.

What makes Integrity different from other outliners?

In Integrity every unit is one node in a single tree, and that same node can appear as an outline line, a heading, a task, a canvas card, a supertag row on a board, or a full document. AI reads your whole workspace and builds editable artifacts — plans, decks, databases — as real nodes you can then edit by hand.

Do outliner apps work offline or keep my data local?

It depends on the app. Logseq and Obsidian are local-first and store your notes as plain Markdown files on your device. Roam, Workflowy, Tana, and Integrity are cloud-hosted services with real-time sync, which trades local file ownership for collaboration and always-current state across devices.

Keep the thread — try Integrity.