# iso-did

> Isomorphic did core and did key tooling

Latest version **3.0.0** (published 2026-09-27) · MIT license · 0 weekly downloads

## Install

```sh
npm install iso-did
pnpm add iso-did
yarn add iso-did
bun add iso-did
```

## Health

**Score 75/100 (B)** — status: active.

Positive: has types; esm support; no vulnerabilities; has provenance; recently updated; high maintenance score; high quality score.

Warnings: low downloads.

## Facts

| | |
|---|---|
| Version | 3.0.0 |
| Published | 2026-09-27 |
| First published | 2023-05-15 |
| Weekly downloads | 0 |
| License | MIT |
| TypeScript types | bundled |
| Module format | ESM + CommonJS |
| Dependencies | 5 |
| Unpacked size | 63.2 KB |
| Known vulnerabilities | 0 |
| Install scripts | no |
| Provenance | attested (GitHub Actions) |
| Author | Hugo Dias <hugomrdias@gmail.com> (hugodias.me) |
| Maintainers | hugomrdias |
| Keywords | did, did:key, did-core |

## Links

- npm: https://www.npmjs.com/package/iso-did
- Repository: hugomrdias/iso-repo
- Homepage: https://github.com/hugomrdias/iso-repo/tree/main/packages/iso-did
- npm.io page: https://npm.io/package/iso-did

## Dependencies (5)

- [p-race](https://npm.io/package/p-race.md) ^3.1.0
- [iso-web](https://npm.io/package/iso-web.md) ^4.0.0
- [iso-base](https://npm.io/package/iso-base.md) ^4.4.0
- [did-resolver](https://npm.io/package/did-resolver.md) ^5.0.1
- [multiformats](https://npm.io/package/multiformats.md) ^14.0.5

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## Recent versions

- 3.0.0 (latest) — 2026-09-27
- 2.1.1 — 2025-09-29
- 2.1.0 — 2025-08-27
- 2.0.1 — 2025-08-05
- 2.0.0 — 2025-07-23
- 1.8.0 — 2025-04-08
- 1.7.0 — 2025-04-07
- 1.6.0 — 2024-02-01
- 1.5.0 — 2023-12-21
- 1.4.0 — 2023-12-13
- 1.3.4 — 2023-12-13
- 1.3.3 — 2023-09-05
- 1.3.2 — 2023-08-29
- 1.3.1 — 2023-07-25
- 1.3.0 — 2023-06-29
- … 5 more at https://npm.io/package/iso-did/versions

## README

# iso-did [![NPM Version](https://img.shields.io/npm/v/iso-did.svg)](https://www.npmjs.com/package/iso-did) [![License](https://img.shields.io/npm/l/iso-did.svg)](https://github.com/hugomrdias/iso-repo/blob/main/license) [![iso-did](https://github.com/hugomrdias/iso-repo/actions/workflows/iso-did.yml/badge.svg)](https://github.com/hugomrdias/iso-repo/actions/workflows/iso-did.yml)

> Isomorphic did core and did key tooling

## Install

```bash
pnpm install iso-did
```

## Usage

```js
import { DID } from 'iso-did'

const did = DID.fromString(
  'did:example:21tDAKCERh95uGgKbJNHYp;service=agent;foo:bar=high/some/path?foo=bar#key1'
)

// did.did = 'did:example:21tDAKCERh95uGgKbJNHYp'
// did.id = '21tDAKCERh95uGgKbJNHYp'
// did.method = 'example'
// did.path = '/some/path'
// did.fragment = 'key1'
```

```js
import { DIDKey } from 'iso-did/key'

const did1 = DIDKey.fromString(
  'did:key:z6MkiTBz1ymuepAQ4HEHYSF1H8quG5GLVVQR3djdX3mDooWp'
)

// did1.key = Uint8Array([1, 2, 3, 4])
// did1.code = 0xed
// did1.type = 'ED25519'

const did2 = DIDKey.fromPublicKey('ED25519', publicKeyBytes)

// did2.id = z6MkiTBz1ymuepAQ4HEHYSF1H8quG5GLVVQR3djdX3mDooWp
// did2.did = did:key:z6MkiTBz1ymuepAQ4HEHYSF1H8quG5GLVVQR3djdX3mDooWp
```

## Docs

Check <https://hugomrdias.github.io/iso-repo/modules/iso-did.html>

## License

MIT © [Hugo Dias](http://hugodias.me)

---
_Source: https://npm.io/package/iso-did · Machine-readable twin of the npm.io package page. Health data is recomputed on every publish._