Annoy
Approximate nearest neighbor library by Spotify optimized for memory usage.
About
Annoy, Approximate Nearest Neighbors Oh Yeah by Spotify, is a C++ library with Python bindings that builds read-only, file-based nearest-neighbor indexes. The indexes are memory-mapped so many processes can share the same data with low overhead, which suits recommendation and embedding lookup at serving time. It trades index immutability for speed and small memory footprint. Released under the Apache 2.0 license.
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Details
- Category
- Vector Databases & Embeddings
- Price
- Free
- Platform
- Local/Desktop
- Difficulty
- Easy (2/5)
- License
- Apache-2.0
- Added
- Apr 3, 2026
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