Pagefind vs Pyserini
A side-by-side comparison of two self-hosted search engines options — licensing, setup difficulty, resource needs, and what each one replaces.
| Feature | Pagefind | Pyserini |
|---|---|---|
| Deploy effort | Read-the-docs project | Read-the-docs project |
| Health score | 88 · Excellent | 86 · Excellent |
| Category | Search Engines | Search Engines |
| License | MIT | Apache-2.0 |
| Language | Rust | Python |
| Setup difficulty | Easy | Hard |
| Min. RAM | 64 MB | 2,048 MB |
| Deployment | source, binary | source |
| GitHub stars | ★ 5,481 | ★ 2,166 |
| First released | 2022 | 2019 |
| Replaces | Algolia, Elasticsearch | Elasticsearch |
What are Pagefind and Pyserini?
Pagefind
Pagefind is a fully static search library that indexes a built website and serves search entirely from the browser without a backend. It is designed to be low-bandwidth and easy to add to any static site.
- Browser-side search index
- No backend required
- Low bandwidth
- Multilingual support
Pyserini
Pyserini is an open-source toolkit for reproducible information retrieval research, providing sparse and dense search over text collections. Self-hosters use it to build and query custom search indexes.
- Sparse and dense retrieval
- Reproducible pipelines
- Custom index building
- Research grade tools
Pagefind vs Pyserini: key differences
Pagefind is written in Rust, while Pyserini is built with Python. Licensing differs — MIT for Pagefind versus Apache-2.0 for Pyserini. Pagefind is the lighter option, starting around 64 MB of RAM against 2,048 MB for Pyserini. Pyserini is the more established project (first released 2019), while Pagefind arrived in 2022. Pagefind has the considerably larger community, at 5,481 GitHub stars versus 2,166.
Why pick each one
Choose Pagefind if…
- Zero server cost
- Trivial to deploy
Watch out for
- Static content only
- Index rebuild on changes
Choose Pyserini if…
- Strong retrieval features
- Good for experimentation
Watch out for
- Research oriented
- Not a turnkey server
Frequently asked questions
Is Pagefind or Pyserini better?
Pagefind is the stronger all-round pick: it has both the larger community and the simpler easy setup. Consider Pyserini if its specific feature set fits your needs better.
Are Pagefind and Pyserini free and open-source?
Yes. Pagefind is licensed under MIT and Pyserini under Apache-2.0. Both can be self-hosted at no software cost.
Can I run Pagefind and Pyserini with Docker?
Pagefind: check the project docs for container support. Pyserini: check the project docs for container support.
Which is lighter on resources, Pagefind or Pyserini?
Pagefind has the smaller minimum footprint at 64 MB of RAM, compared to about 2,048 MB for Pyserini. Real-world usage depends on library size, user count, and enabled features.