USearch
Shares rank 8 of 10 vector databases by recommenders
Free vector search library that people find fast at large scale and happy working with vectors on disk.
Free vector search library that people find fast at large scale and happy working with vectors on disk.
7 people gave an opinion
- recommend it
- 7
- criticize it
- 0
- approval share
- 100%
Recommended in 4 of 13 months
- November 2025: not recommended
- December 2025: not recommended
- January 2026: recommended
- February 2026: recommended
- March 2026: recommended
- April 2026: not recommended
- May 2026: not recommended
- June 2026: not recommended
- July 2026: not recommended
- August 2026: recommended
- September 2026: not recommended
- October 2026: not recommended
- November 2026: not recommended (month in progress)
Why it doesn’t carry the badge
- 7 people recommend itNeeds 10 or more, not met.
- Nobody criticizes itNeeds 2 to 1 or better, met.
- Recommended in 4 of 13 monthsNeeds 4 or more, met.
The same three rules apply to every product, and the badge can’t be bought. How the badge works
What people say about it
The reasons people give, with the number of comments that give each one. Open a reason to read what they said.
Why people recommend it
Each mark is one comment
Fast vector search
“It's plenty fast and is happy working with vectors on disk”
Comment from 7 Mar 2026 in “Querying 3B Vectors” “usearch is amazingly fast, 44m embeddings in < 100ms”
Comment from 15 Feb 2026 in “zvec: embedded vector database” “100K QPS was easily achievable in 2023”
Comment from 15 Feb 2026 in “zvec: embedded vector database”
Other vector databases people recommend
The four most recommended other vector databases, with the same counts for each, so you can compare like for like. The tick on each bar marks the 2 to 1 line the badge needs.
| Product | Recommend | Criticize | Approval | Months | Owned | Badge |
|---|---|---|---|---|---|---|
| Qdrant | 22 | 3 | 88% | 10 | — | Approved |
| Chroma | 17 | 5 | 77% | 7 | — | Approved |
| sqlite-vec | 17 | 3 | 85% | 7 | — | Approved |
| turbopuffer | 13 | 2 | 87% | 8 | — | Approved |
| USearchThis page | 7 | 0 | 100% | 4 | — | — |
What people said
5 of the 7 comments that mention it, newest first. Each links to the original comment.
“It's plenty fast and is happy working with vectors on disk”
“It gets similar performance and is very convenient.”
“USearch has some impressive work”
“100K QPS was easily achievable in 2023”
“usearch is amazingly fast, 44m embeddings in < 100ms”
Counts come from 1,795,640 Hacker News comments, November 2025 to November 2026. How we count. Report a mistake.