can i fork it?

Head-to-Head Comparison · Alternative to Things 3 · ✅ tasks

Things 3 vs Vikunja

A capable Todoist replacement once you accept becoming its hosting department Here is how Vikunja ($0/mo open source) stacks up against Things 3 (paid subscription) across cost, hosting, data privacy, and real-world trade-offs.

Open-Source Alternative

Vikunja

$0.00/mo · AGPL-3.0+

Things 3 vs Vikunja Specification Matrix

facts verified 2026-08-10

DimensionThings 3 (Paid)Vikunja (Replacement)
Monthly PricePaid tier$0 / mo
Source & LicenseProprietary SaaSopen source AGPL-3.0+
Where It RunsVendor CloudLocal or hosted (your machine or their cloud)
PlatformsWeb / Cloud
desktopwebself-hosteddocker to self-host
GitHub Stars—★ 5.0k (active aug 2026)

Deep Dive: Switching from Things 3 to Vikunja

Trade-offs, installation & data architecture

The Catch vs Things 3

What you trade away

Vikunja feels like a hosted web task system and cannot match Things’ native offline polish, frictionless capture, or elegant Today and Upcoming experience.

Installation

How to deploy Vikunja

Use the paid hosted service or deploy the free server with Docker Compose, a package, or the standalone binary

Day-2 Operations & Setup

What it takes to run

The free path requires a server or Docker, persistent volumes, secrets, and normally a reverse proxy with TLS

Data Ownership

Where your data lives

Tasks, projects, users, and settings live in SQLite, MySQL/MariaDB, or PostgreSQL, with attachments in a persistent files directory, on the selected host

Build vs Fork Verdict: YES (the core loop fits in a weekend)

Why fork Vikunja instead of vibe-coding a Things 3 clone?

The core loop is small enough for a capable coding agent to produce a useful local version in one sitting. For Things 3, build a polished personal task manager with areas, projects, tags, deadlines, and a today view. The hard boundary is exceptional native design, apple-device sync, shortcuts, and long-term maintenance, plus cross-device reliability and workflow polish.

Things 3 vs Vikunja FAQ

Is Vikunja a good free alternative to Things 3?+

Yes. Vikunja is a verified open-source (AGPL-3.0+) replacement for Things 3. A capable Todoist replacement once you accept becoming its hosting department

What is the catch when switching from Things 3 to Vikunja?+

Vikunja feels like a hosted web task system and cannot match Things’ native offline polish, frictionless capture, or elegant Today and Upcoming experience.

How do I install or self-host Vikunja instead of Things 3?+

Install: Use the paid hosted service or deploy the free server with Docker Compose, a package, or the standalone binary. Setup: The free path requires a server or Docker, persistent volumes, secrets, and normally a reverse proxy with TLS

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