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sequelize

Sequelize is a promise-based Node.js ORM tool for Postgres, MySQL, MariaDB, SQLite, Microsoft SQL Server, Amazon Redshi…

npm says

4,106,507

per week

Every tarball fetch: mirrors, scanners, CI and people.

real installs

high confidence

≈ 4.1M–4.11M

per week

Mirror spikes and crawlers removed. CI and dependency installs still count, so this is not a head count.

noise under 1% of npm's count, so nearly all of it counts. noise real installs

Why this estimate

With JavaScript on, this lists what the filter found for this package.

Most used major version: 6, the latest one, with 94% of last week's downloads above the crawler floor. Most used single version: 6.37.8.

Snapshot from the daily build of Nov 6, 2026, last 7 days of npm data. With JavaScript on, this page recomputes it live from the npm API.

How many people use sequelize?

npm counted 4,106,507 downloads of sequelize in the last 7 days. Nobody can count people exactly, npm included: it does not record who downloaded what. After removing mirror spikes and crawlers, about 4.1M–4.11M look like real installs. At this scale most of them come from CI, builds and other packages that depend on sequelize, so the number of people behind them is far smaller.

Is sequelize still maintained?

Less clear: the last release is more than six months old. The latest version, 6.37.8, came out on Mar 7, 2026. The last 12 months saw 1 stable release. It was first published on May 3, 2011. npm lists 9 maintainers.

Is sequelize still used?

Downloads with publish spikes removed are up 25% over 3 months and up 62% over 11 months. For scale, the median of the 269 packages we track, which lean towards today's most downloaded, is up 157% over 11 months, so this one is behind that. Last week, 94% of downloads above the crawler floor were on major version 6, the latest one; the most used single version was 6.37.8, with 62%. Weekdays get 2.0× the downloads of weekends, which fits people at work, though CI follows the same rhythm. Crawlers account for about 13,794 downloads a week, roughly 22 per version.

How the estimate works

  1. Cut the spike every new version gets from mirrors in its first days.
  2. Subtract the flat floor robots download from every version each week.
  3. Show what is left as a range, with a confidence level. It still includes CI and dependency installs, so it is not a count of people.

Read the methodology

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