---
title: "meilisearch/arroy: Annoy-inspired Approximate Nearest Neighbors in Rust, based on LMDB and optimized for memory usage :boom:"
url: https://daily.dev/posts/meilisearch-arroy-annoy-inspired-approximate-nearest-neighbors-in-rust-based-on-lmdb-and-optimized-zyxzsfdun
source_url: https://github.com/meilisearch/arroy
type: article
source: "Lobsters"
published: 2023-12-01T18:49:17.951Z
updated: 2025-09-06T02:41:07.205Z
tags: ["meilisearch", "rust"]
reading_time: 4
upvotes: 1
comments: 0
language: en
---

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# meilisearch/arroy: Annoy-inspired Approximate Nearest Neighbors in Rust, based on LMDB and optimized for memory usage :boom:

**[Lobsters](https://daily.dev/sources/lobsters)** · 4 min read · 1 upvotes · 0 comments

## Summary

Arroy is a Rust library for searching vectors in space that are close to a given query vector. It is based on LMDB and is optimized for memory usage. It is useful for finding nearest neighbors and can be used by multiple processes simultaneously. The library has additional features compared to Annoy, but also has some missing features like multithreading and Python support.

## Full article

daily.dev links to this article rather than hosting it. Read it at the original source: <https://github.com/meilisearch/arroy>

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Tags: [#meilisearch](https://daily.dev/tags/meilisearch), [#rust](https://daily.dev/tags/rust)

[View this post on daily.dev](https://daily.dev/posts/meilisearch-arroy-annoy-inspired-approximate-nearest-neighbors-in-rust-based-on-lmdb-and-optimized-zyxzsfdun)