# Chroma

17 Hacker News commenters recommended Chroma and 5 criticized it, November 2025 to November 2026. It was recommended in 7 of 13 months. It meets the Hacker Approved badge rule.

**Verdict:** Open-source Apache 2.0 database for AI search, favored for similarity search over documents and quick setup. Critics say results can disappoint at larger scale.

## Why people recommend it

- Open source under Apache 2.0 (3 comments): "Chroma is the open-source search database for AI applications." ([source](https://news.ycombinator.com/item?id=47224402)) "Chroma is the open-source database designed for AI." ([source](https://news.ycombinator.com/item?id=45802400)) "Chroma is also apache 2.0 - fully open source." ([source](https://news.ycombinator.com/item?id=45799397))
- Good for similarity search over documents (3 comments): "For fuzzy similarity search over unstructured documents Qdrant and Chroma are the right tools." ([source](https://news.ycombinator.com/item?id=47250461)) "I've even made a IEITYuan/Yuan-embedding-2.0-en database of my manpages with chroma" ([source](https://news.ycombinator.com/item?id=46357528)) "database of my manpages with chroma" ([source](https://news.ycombinator.com/item?id=46354409))
- Widely used across projects (4 comments): "I use Chroma for a lot of projects." ([source](https://news.ycombinator.com/item?id=46286877)) "Only brinicle, and chroma survived" ([source](https://news.ycombinator.com/item?id=46498792)) "I use ChromaDB with Python" ([source](https://news.ycombinator.com/item?id=49721567))

## What people warn about

- Results fall short of expectations (2 comments): "I was quite disappointed, what I got out looked nowhere near as good as what was advertised" ([source](https://news.ycombinator.com/item?id=46199925)) "the results can be disappointing" ([source](https://news.ycombinator.com/item?id=46195317))
- Recall degrades at larger scale (2 comments): "Works well, but I didn't tested on larger scale" ([source](https://news.ycombinator.com/item?id=46629050)) "recall quality went to garbage at ~5k memories" ([source](https://news.ycombinator.com/item?id=47767126))

## Alternatives hackers recommend

- [Qdrant](https://hackerapproved.com/p/qdrant.md): 22 recommend
- [sqlite-vec](https://hackerapproved.com/p/sqlite-vec.md): 17 recommend
- [LanceDB](https://hackerapproved.com/p/lancedb.md): 12 recommend
- [FAISS](https://hackerapproved.com/p/faiss.md): 9 recommend
- [zvec](https://hackerapproved.com/p/zvec.md): 8 recommend

## Cite as

Hacker Approved, "Chroma", https://hackerapproved.com/p/chroma/ (counts from 1,795,640 Hacker News comments, November 2025 to November 2026).