High-quality APIs for Deno and the web. Use fearlessly.
Important
Newer versions of the Standard Library are now hosted on JSR. Older versions up till 0.224.0 are still available at deno.land/std.
The following list contains links to the Standard Library's packages and documentation:
| Package | Latest version |
|---|---|
| archive | |
| assert | |
| async | |
| bytes | |
| cli | |
| collections | |
| crypto | |
| csv | |
| data_structures | |
| datetime | |
| dotenv | |
| encoding | |
| expect | |
| fmt | |
| front_matter | |
| fs | |
| html | |
| http | |
| ini | |
| io | |
| json | |
| jsonc | |
| log | |
| media_types | |
| msgpack | |
| net | |
| path | |
| regexp | |
| semver | |
| streams | |
| testing | |
| text | |
| toml | |
| ulid | |
| url | |
| uuid | |
| webgpu | |
| yaml |
Note
Settled status means a package is unlikely to have breaking changes, but has not yet achieved v1 status.
The Standard Library is now in the process of stabilizing its packages. See #4600 for details.
Check out the architecture guide here.
Check out the design documentation here.
Check out the contributing guidelines here.
Package versions >=1.0.0 follow Semantic Versioning, and package versions <1.0.0 follow this proposal.
<a href="https://jsr.io/@std">
<img
width="135"
height="20"
src="https://raw.githubusercontent.com/denoland/std/main/badge.svg"
alt="Built with the Deno Standard Library"
/>
</a>[](https://jsr.io/@std)Check out the frequently asked questions page here.
