Lunr.js vs Marqo
A side-by-side comparison of two self-hosted search engines options — licensing, setup difficulty, resource needs, and what each one replaces.
| Feature | Lunr.js | Marqo |
|---|---|---|
| Deploy effort | Read-the-docs project | Under-an-hour setup |
| Health score | 29 · At risk | 87 · Excellent |
| Category | Search Engines | Search Engines |
| License | MIT | Apache-2.0 |
| Language | JavaScript | Python |
| Setup difficulty | Easy | Medium |
| Min. RAM | 64 MB | 4,096 MB |
| Deployment | source | docker, kubernetes |
| GitHub stars | ★ 9,203 | ★ 5,030 |
| First released | 2013 | 2022 |
| Replaces | Algolia, Elasticsearch | Algolia, Pinecone |
What are Lunr.js and Marqo?
Lunr.js
Lunr.js is a small, full-text search library for use in the browser that provides a simple search index without needing a backend service. It is commonly used to add offline search to static sites and documentation.
- Browser-based search
- No backend needed
- Prebuilt index support
- Tiny library size
Marqo
Marqo is an open-source, end-to-end search engine that combines vector generation, storage and retrieval. It handles embedding creation automatically so you can run semantic search over text and images.
- Built-in embedding generation
- Text and image semantic search
- No separate ML pipeline needed
- Simple REST API
Lunr.js vs Marqo: key differences
Lunr.js is written in JavaScript, while Marqo is built with Python. Licensing differs — MIT for Lunr.js versus Apache-2.0 for Marqo. Lunr.js is the lighter option, starting around 64 MB of RAM against 4,096 MB for Marqo. Lunr.js is the more established project (first released 2013), while Marqo arrived in 2022. Marqo lists first-class Docker deployment; Lunr.js does not.
Why pick each one
Choose Lunr.js if…
- Released under the MIT license
- Easy to set up — beginner-friendly
- Mature project with 9.2k GitHub stars
- Written in JavaScript
Choose Marqo if…
- All-in-one vector search
- No external embedding service required
Watch out for
- Heavy GPU or RAM needs for models
Frequently asked questions
Is Lunr.js or Marqo better?
Lunr.js is the stronger all-round pick: it has both the larger community and the simpler easy setup. Consider Marqo if its specific feature set fits your needs better.
Are Lunr.js and Marqo free and open-source?
Yes. Lunr.js is licensed under MIT and Marqo under Apache-2.0. Both can be self-hosted at no software cost.
Can I run Lunr.js and Marqo with Docker?
Lunr.js: check the project docs for container support. Marqo: yes.
Which is lighter on resources, Lunr.js or Marqo?
Lunr.js has the smaller minimum footprint at 64 MB of RAM, compared to about 4,096 MB for Marqo. Real-world usage depends on library size, user count, and enabled features.