Atheos vs Harlequin
A side-by-side comparison of two self-hosted ides & code editors options — licensing, setup difficulty, resource needs, and what each one replaces.
Not the right match-up?
Atheos
Web-based IDE framework with a small footprint and minimal
VS
Harlequin
The SQL IDE for your terminal
| Feature | Atheos | Harlequin |
|---|---|---|
| Category | IDEs & Code Editors | IDEs & Code Editors |
| License | MIT | MIT |
| Language | JavaScript | Python |
| Setup difficulty | Medium | Easy |
| Min. RAM | 512 MB | 128 MB |
| Deployment | docker | binary, source |
| GitHub stars | ★ 675 | ★ 6,314 |
| First released | 2025 | 2023 |
| Replaces | — | DataGrip |
Why pick each one
Choose Atheos if…
- Released under the MIT license
- First-class Docker support for quick deployment
- Written in JavaScript
- Lightweight — runs in 512 MB RAM
Choose Harlequin if…
- Released under the MIT license
- Easy to set up — beginner-friendly
- Mature project with 6.3k GitHub stars
- Written in Python
Frequently asked questions
Is Atheos or Harlequin better?
Harlequin is the stronger all-round pick: it has both the larger community and the simpler easy setup. Consider Atheos if its specific feature set fits your needs better.
Are Atheos and Harlequin free and open-source?
Yes. Atheos is licensed under MIT and Harlequin under MIT. Both can be self-hosted at no software cost.
Can I run Atheos and Harlequin with Docker?
Atheos: yes. Harlequin: check the project docs for container support.