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denoland-deno/docs/linking_to_external_code/import_maps.md

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## Import maps
> This is an unstable feature. Learn more about
> [unstable features](../runtime/stability.md).
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Deno supports [import maps](https://github.com/WICG/import-maps).
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You can use import maps with the `--importmap=<FILE>` CLI flag.
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Current limitations:
- single import map
- no fallback URLs
- Deno does not support `std:` namespace
- supports only `file:`, `http:` and `https:` schemes
Example:
**import_map.json**
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```js
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{
"imports": {
"fmt/": "https://deno.land/std@0.55.0/fmt/"
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}
}
```
**color.ts**
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```ts
import { red } from "fmt/colors.ts";
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console.log(red("hello world"));
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```
Then:
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```shell
$ deno run --importmap=import-map.json --unstable color.ts
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```