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os.tmpdir()

Returns the operating system default directory for temporary files.

Since Node 0.9 Spec ↗

Syntax

os.tmpdir()

Returns

string — The absolute path of the temp directory.

Examples

import { tmpdir } from 'node:os';

console.log(tmpdir());
Output 
/var/folders/xy/tmp

import { tmpdir } from 'node:os';
import { mkdtemp } from 'node:fs/promises';
import { join } from 'node:path';

const dir = await mkdtemp(join(tmpdir(), 'build-'));
console.log(dir);
Output 
/tmp/build-a1b2c3

Notes

Pair with `fs.mkdtemp` to create a unique scratch directory; never use a fixed temp filename (predictable paths are a security risk). Temp contents may be cleared by the OS at any time.

See also