@opendsr/seedfaker-wasm

Browser WASM build of seedfaker — deterministic synthetic data with 200+ fields, 68 locales. Runs entirely in the browser, no server.

CLI · Node.js · Python · Browser/WASM · Go · PHP · Ruby · MCP

npm install @opendsr/seedfaker-wasm

Pre-1.0: API may change between minor versions. Pin your version.

Bundler (webpack, vite, rspack)

import { SeedFaker } from "@opendsr/seedfaker-wasm";

await SeedFaker.init();

const f = new SeedFaker({ seed: "demo", locale: "en", until: 2025 });
f.field("name");                                         // "Zoe Kumar"
f.record(["name", "email"], { ctx: "strict" });          // { name: ..., email: ... }
f.records(["name", "email"], { n: 5 });                  // [{ ... }, ...]
f.validate(["name", "email:e164"]);                      // throws if invalid

SeedFaker.fields();                                      // all field names
SeedFaker.fingerprint();                                 // "sf0-..."

Plain browser (no bundler)

<script type="module">
import { SeedFaker } from "@opendsr/seedfaker-wasm/web";

await SeedFaker.init();
const f = new SeedFaker({ seed: "demo" });
console.log(f.field("name"));
</script>

API

await SeedFaker.init() required once before creating instances.

| Method | Description | |--------|-------------| | SeedFaker.init() | Load WASM (async, call once) | | new SeedFaker(opts?) | Create instance | | field(name, opts?) | Single field value | | record(fields, opts?) | Single record | | records(fields, opts?) | Batch records | | validate(fields, opts?) | Validate without generating | | SeedFaker.fields() | All field names | | SeedFaker.fingerprint() | Algorithm fingerprint |

Documentation

• Quick start
• Field reference (200+ fields)
• Library API
• Guides — library usage, seed databases, mock APIs, anonymize data, NER training
• Full documentation

Disclaimer

This software generates synthetic data that may resemble real-world identifiers, credentials, or personal information. All output is artificial. See LICENSE for the full legal disclaimer.