Open source Elasticsearch alternatives
Every project in the catalog is MIT, Apache or BSD licensed. 2 projects explicitly describe themselves as a Elasticsearch alternative; 0 more are in the category where Elasticsearch is a typical product.
Projects that call themselves a “Elasticsearch alternative”
Source: the project's GitHub description or README.
zincsearch · Search Engines
Alternative to (project's own claim): Elasticsearch
Common commercial products in this category: Algolia, Elastic Cloud, Azure AI Search
- Elasticsearch API compatibility allows you to integrate data entry operations with your existing systems.
- You store documents with different fields in the same directory without having to define schema.
- Using the built-in web interface, you query your data and perform user management operations.
- ↑ PositiveHacker News
ZincSearch – lightweight alternative to Elasticsearch written in Go
“(disclaimer: I'm one of the cofounder of Quickwit.io, we are doing log search) (edited to add vector search category and add manticore) When looking at OSS search projects, it's nice to have a rough ideas of the different use cases, here is the list I have in mind: - user facing…”
- • NeutralHacker News
ZincSearch – lightweight alternative to Elasticsearch written in Go
“Elasticsearch and ZincSearch both are general purpose search engines based on inverted indexes that can be used for app search as well as log search. In my stint at AWS I found that most companies used elasticsearch and anecdotally 90%+ users used it for log search. Log search…”
Tantivy
100quickwit-oss · Search Engines
Alternative to (project's own claim): Elasticsearch, Apache Solr
Common commercial products in this category: Algolia, Elastic Cloud, Azure AI Search
- In Rust projects, you use it as a full-text search library without the need for an external server.
- You make advanced searches within documents with natural query language, word phrase searches, and range queries.
- With multi-language support and a customizable tokenizer, you index text in different languages.
- • Website is unreachable (checked: 2026-10-31)
- ↑ PositiveHacker News
Tantivy – full-text search engine library inspired by Apache Lucene
“I recently deployed Quickwit (based on Tantivy, from the same team) in production to index a few billion objects and have been very pleased with it. Indexing rates are fantastic. Query latency is competitive. Perhaps most importantly, separation of compute and storage has proven…”
- ↑ PositiveHacker News
Tantivy – full-text search engine library inspired by Apache Lucene
“I started working on a personal project a few years ago, after being insanely frustrated with the resource hog that is elasticsearch. That is coming from someone who's personal computer has more resources than what a number of generous startups allocate for their product. I…”