npm · npm:flat

flat active

Take a nested Javascript object and flatten it, or unflatten an object with delimited keys

The latest stable version of flat is 6.0.1, published on 2023-09-19. Verified by Vigia on 2026-11-12.

Latest stable version	6.0.1
Published	2023-09-19 14:47:19 UTC
Install	`npm install flat@latest`
Requires (engines)	`{"node":">=18"}`
Peer dependencies	—
Dist-tags	`latest: 6.0.1`
License	BSD-3-Clause
Advisories on latest version	none known
Last verified	2026-11-12 13:20:09 UTC
Sources	api.deps.dev, registry.npmjs.org, registry.npmjs.org

Maintenance

Activity	dormant
Last stable release	2023-09-19 14:47:19 UTC · 1150 days ago
Stable releases in the last 12 months	0
Published versions	28

Heuristic based only on release dates; it does not measure issue or security response times.

Version history

Version	Published
`6.0.1`	2023-09-19 14:47:19 UTC
`6.0.0`	2023-09-15 09:22:00 UTC
`3.0.1`	2020-10-14 15:24:03 UTC
`2.0.2`	2020-10-14 15:23:47 UTC
`1.6.2`	2020-10-14 15:23:32 UTC
`4.1.1`	2020-10-14 15:19:00 UTC
`5.0.2`	2020-08-06 15:29:02 UTC
`5.0.1`	2020-08-06 15:18:07 UTC
`5.0.0` withdrawn	2019-10-22 05:18:23 UTC
`4.1.0` withdrawn	2018-07-02 07:53:50 UTC
`4.0.0` withdrawn	2017-07-25 07:18:19 UTC
`3.0.0` withdrawn	2017-07-23 06:46:22 UTC
`2.0.1` withdrawn	2016-06-23 05:14:14 UTC
`2.0.0` withdrawn	2016-01-30 22:53:58 UTC
`1.6.1` withdrawn	2016-01-30 22:29:29 UTC
`1.6.0` withdrawn	2015-05-27 21:39:11 UTC
`1.5.1` withdrawn	2015-03-19 04:04:22 UTC
`1.5.0` withdrawn	2015-01-14 03:28:05 UTC
`1.4.0` withdrawn	2015-01-14 03:22:29 UTC
`1.3.0` withdrawn	2014-09-28 02:20:15 UTC

Showing the 20 most recent of 28 versions. JSON

Version compatibility

Newest stable version that declares support for each runtime version (from the requirements published with each version).

Runtime	Newest compatible version
`node 16`	`5.0.2`
`node 18`	`6.0.1`
`node 20`	`6.0.1`
`node 22`	`6.0.1`
`node 24`	`6.0.1`

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Frequently asked questions

What is the latest version of flat?

The latest stable version of flat is 6.0.1, published on 2023-09-19. Verified by Vigia on 2026-11-12.

How do I install the latest version of flat?

Run npm install flat@latest. The latest stable version is 6.0.1 (verified 2026-11-12).

Is flat deprecated?

No. flat is not marked as deprecated in the registry.

Which Node.js version does flat require?

flat 6.0.1 declares this requirement: {"node":">=18"}.

Does flat 6.0.1 have known vulnerabilities?

No known advisories affect flat 6.0.1 according to the data Vigia checks.

Is flat still maintained?

flat published 0 stable releases in the last 12 months; the most recent was 1150 days ago. Activity: dormant.

Observed changes

No changes observed yet since Vigia started tracking this package.

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