Metadata-Version: 2.1
Name: voyager
Version: 2.1.1
Summary: Easy-to-use, fast, simple multi-platform approximate nearest-neighbor search library.
Author-Email: Peter Sobot <psobot@spotify.com>
Classifier: Development Status :: 5 - Production/Stable
Classifier: License :: OSI Approved :: Apache Software License
Classifier: Operating System :: MacOS
Classifier: Operating System :: Microsoft :: Windows
Classifier: Operating System :: POSIX :: Linux
Classifier: Programming Language :: C++
Classifier: Programming Language :: Python
Classifier: Topic :: Database :: Database Engines/Servers
Classifier: Programming Language :: Python :: 3.7
Classifier: Programming Language :: Python :: 3.8
Classifier: Programming Language :: Python :: 3.9
Classifier: Programming Language :: Python :: 3.10
Classifier: Programming Language :: Python :: 3.11
Classifier: Programming Language :: Python :: 3.12
Project-URL: Homepage, https://github.com/spotify/voyager
Requires-Python: >=3.8
Description-Content-Type: text/markdown

![The word Voyager_in blue, with a multicoloured graphic illustrating an orbit to its left.](https://github.com/spotify/voyager/assets/213293/c99cd0e8-cd38-486f-bb61-15f74028ba52)

[![License: Apache 2.0](https://img.shields.io/badge/License-Apache%202.0-blue.svg)](https://github.com/spotify/voyager/blob/master/LICENSE)
[![Documentation](https://img.shields.io/badge/Documentation-on%20github.io-brightgreen)](https://spotify.github.io/voyager)
[![Supported Platforms](https://img.shields.io/badge/platforms-macOS%20%7C%20Windows%20%7C%20Linux-green)](https://pypi.org/project/voyager)
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**_Voyager_** is a library for performing fast approximate nearest-neighbor searches on an in-memory collection of vectors.

Voyager features bindings to both Python and Java, with feature parity and index compatibility between both languages. It uses the HNSW algorithm, based on [the open-source `hnswlib` package](https://github.com/nmslib/hnswlib), with numerous features added for convenience and speed. Voyager is used extensively in production at Spotify, and is queried hundreds of millions of times per day to power numerous user-facing features.

Think of Voyager like [Sparkey](https://github.com/spotify/sparkey), but for vector/embedding data; or like [Annoy](https://github.com/spotify/annoy), but with [much higher recall](http://ann-benchmarks.com/). It got its name because it searches through (embedding) space(s), much like [the Voyager interstellar probes](https://en.wikipedia.org/wiki/Voyager_program) launched by NASA in 1977.

[![Python Documentation](https://img.shields.io/badge/Python%20Documentation-on%20github.io-brightgreen)](https://spotify.github.io/voyager/python)
[![Java Documentation](https://img.shields.io/badge/Java%20Documentation-on%20github.io-brightgreen)](https://spotify.github.io/voyager/java)


### License
Voyager is copyright 2022-2025 Spotify AB.

Voyager is licensed under the [Apache 2 License]([https://www.gnu.org/licenses/gpl-3.0.en.html](https://www.apache.org/licenses/LICENSE-2.0)).

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