lnx vs Sonic
A side-by-side comparison of two self-hosted search engines options — licensing, setup difficulty, resource needs, and what each one replaces.
| Feature | lnx | Sonic |
|---|---|---|
| Deploy effort | Under-an-hour setup | Under-an-hour setup |
| Health score | 34 · At risk | 96 · Excellent |
| Category | Search Engines | Search Engines |
| License | MIT | MPL-2.0 |
| Language | Rust | Rust |
| Setup difficulty | Medium | Medium |
| Min. RAM | 512 MB | 32 MB |
| Deployment | docker, binary, source | docker, binary |
| GitHub stars | ★ 1,454 | ★ 21,349 |
| First released | 2021 | 2019 |
| Replaces | Elasticsearch, Algolia | Algolia, Elasticsearch |
What are lnx and Sonic?
lnx
lnx is an open-source search engine server built on top of the Tantivy library that exposes a simple REST API for indexing and querying documents. It aims to be a fast, easy-to-deploy alternative for full-text search.
- Built on Tantivy
- Simple REST API
- Fast full-text search
- Typo-tolerant queries
Sonic
Sonic is a fast, lightweight and schema-less search backend that can be used as a simpler, more efficient alternative to Elasticsearch. It is designed to ingest and query text with minimal resources.
- Extremely low memory usage
- Schema-less ingestion
- Fast prefix and word search
- Simple text protocol
lnx vs Sonic: key differences
Both projects are written in Rust. Licensing differs — MIT for lnx versus MPL-2.0 for Sonic. Sonic is the lighter option, starting around 32 MB of RAM against 512 MB for lnx. Sonic is the more established project (first released 2019), while lnx arrived in 2021. Sonic has the considerably larger community, at 21,349 GitHub stars versus 1,454.
Why pick each one
Choose lnx if…
- Released under the MIT license
- First-class Docker support for quick deployment
- Active community (1.5k GitHub stars)
- Written in Rust
Choose Sonic if…
- Tiny resource footprint
- Very fast for autocomplete
Watch out for
- No relevance scoring or filtering
Frequently asked questions
Is lnx or Sonic better?
Neither is universally better. Sonic has the larger community; both share a medium setup difficulty, so the decision comes down to features and licensing.
Are lnx and Sonic free and open-source?
Yes. lnx is licensed under MIT and Sonic under MPL-2.0. Both can be self-hosted at no software cost.
Can I run lnx and Sonic with Docker?
lnx: yes. Sonic: yes.
Which is lighter on resources, lnx or Sonic?
Sonic has the smaller minimum footprint at 32 MB of RAM, compared to about 512 MB for lnx. Real-world usage depends on library size, user count, and enabled features.