Package

bluebird

Full featured Promises/A+ implementation with exceptionally good performance

v3.7.2, 28 Nov 2019MITCommonJSTypes: NonePromises and async control flow

$ npm install bluebird

npm GitHub Homepage

Key numbers

As of 25 Sept 2026

Weekly downloads: 45.1m; +48% over 12 months
Gzip bundle size: -; No Bundlephobia data
Dependencies: 0; Direct, from package.json
Last release: 6 years ago; v3.7.2
GitHub stars: 20.5k; 2.3k forks
Open issues / PRs: 80 / 50
Contributors: 238
Commits, last 52 weeks: 0

Downloads

Last week 2026-09-15 to 2026-09-21

Weekly npm downloads, one point per week, weeks starting 23 Sept 2025 to 15 Sept 2026. The y axis starts at zero.

45,054,542 downloads last week, 191,570,846 in the last month. The 12-month change of +48% compares the average of the last 4 weeks with the first 4 weeks of the series.

Maintenance

Releases, last 12 months: 0135 in total
Latest version: 3.7.2, 28 Nov 20196 years ago
First published: 24 Sept 2013
Last push to GitHub: 7 Nov 2024686 days before the snapshot
Repository archived: No
Open issues: 80
Open pull requests: 50
Commits, last 52 weeks: 0
Dependents on npm: 31,456

Major versions

v3 first release 3.0.0, 27 Oct 2015
v0 first release 0.11.6, 6 Oct 2014
v2 first release 2.0.2, 4 Jun 2014
v1 first release 1.0.0, 12 Jan 2014

Recent releases

Version	Published
3.7.2	28 Nov 2019
3.7.1	15 Oct 2019
3.7.0	1 Oct 2019
3.6.0	1 Oct 2019
3.5.5	24 May 2019
3.5.4	3 Apr 2019
3.5.3	6 Nov 2018
3.5.2	3 Sept 2018
3.5.1	4 Oct 2017
3.5.0	3 Mar 2017
3.4.7	22 Dec 2016
3.4.6	1 Sept 2016
3.4.5	31 Aug 2016
2.11.0	30 Aug 2016

Compatibility

Module format: CommonJSFrom package.json type, main and exports fields
TypeScript types: None
Node.js engine range: Not declared
Runtimes: -
Unpacked size (npm): 618 kB
Dependencies (0): None

Install

npm install bluebird

CDN

jsDelivr: 19.9m requests in 30 days

jsDelivrhttps://cdn.jsdelivr.net/npm/bluebird@3.7.2/
unpkghttps://unpkg.com/bluebird@3.7.2/
esm.shhttps://esm.sh/bluebird@3.7.2

Alternatives

Package	Weekly downloads	Gzip	Last release	Module	Comparison
es6-promise-pool Runs Promises in a pool that limits their concurrency.	468.7k	-	9 years ago	CommonJS	-

Sources: npm registry, npm downloads API, GitHub API, jsDelivr. Data fetched 25 Sept 2026.

Indexability: Indexed.