Lunr.js vs Orama
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 | Orama |
|---|---|---|
| Deploy effort | Read-the-docs project | Read-the-docs project |
| Health score | 29 · At risk | 87 · Excellent |
| Category | Search Engines | Search Engines |
| License | MIT | Apache-2.0 |
| Language | JavaScript | TypeScript |
| Setup difficulty | Easy | Easy |
| Min. RAM | 64 MB | 128 MB |
| Deployment | source | source, binary |
| GitHub stars | ★ 9,203 | ★ 10,561 |
| First released | 2013 | 2022 |
| Replaces | Algolia, Elasticsearch | Algolia, Elasticsearch |
What are Lunr.js and Orama?
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
Orama
Orama is an open-source full-text, vector, and hybrid search engine that runs anywhere JavaScript runs, including the browser, edge functions, and servers. It can power in-app search and documentation search without external infrastructure.
- Runs in the browser
- Full-text and vector search
- Hybrid search
- Tiny footprint
Lunr.js vs Orama: key differences
Lunr.js is written in JavaScript, while Orama is built with TypeScript. Licensing differs — MIT for Lunr.js versus Apache-2.0 for Orama. Lunr.js is the lighter option, starting around 64 MB of RAM against 128 MB for Orama. Lunr.js is the more established project (first released 2013), while Orama arrived in 2022.
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 Orama if…
- Released under the Apache-2.0 license
- Easy to set up — beginner-friendly
- Mature project with 10.6k GitHub stars
- Written in TypeScript
Frequently asked questions
Is Lunr.js or Orama better?
Neither is universally better. Orama has the larger community; both share a easy setup difficulty, so the decision comes down to features and licensing.
Are Lunr.js and Orama free and open-source?
Yes. Lunr.js is licensed under MIT and Orama under Apache-2.0. Both can be self-hosted at no software cost.
Can I run Lunr.js and Orama with Docker?
Lunr.js: check the project docs for container support. Orama: check the project docs for container support.
Which is lighter on resources, Lunr.js or Orama?
Lunr.js has the smaller minimum footprint at 64 MB of RAM, compared to about 128 MB for Orama. Real-world usage depends on library size, user count, and enabled features.