nanofaker

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nanofakerPerformance-focused faker library

Lightweight TypeScript faker with complete locale coverage. Blazing fast, type-safe, and comprehensive.

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⚡

Performance-First

Sub-millisecond generation speed. Generate 10,000 full names in just 0.32ms. Built for performance from the ground up.

🌍

26 Locales

Complete translations for 26 languages: Arabic, German, English, Spanish, French, Portuguese, Chinese, and many more.

📝

Fully Type-Safe

Written in TypeScript with comprehensive type definitions. Excellent IDE support with autocomplete and inline documentation.

🎯

16+ Data Categories

Person, Address, Company, Internet, Phone, Food, Animals, Sports, Music, Commerce, Books, Vehicles, Words, Tech, System, Science, and more.

🛠️

Powerful CLI

Generate fake data from the command line. Perfect for seeding databases, creating fixtures, and testing APIs.

🔄

Reproducible Data

Built-in seeding support for consistent, deterministic test data. Same seed always produces the same results.

🪶

Ultra Lightweight

Minimal dependencies and tiny footprint. Tree-shakeable modules for optimized bundle sizes in production.

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Rich Utilities

Powerful helper methods for arrays, strings, numbers, dates, and unique value generation with collision detection.

🧪

Testing Optimized

Purpose-built for unit tests, integration tests, E2E tests, and realistic test fixtures with locale support.

🌐

Locale Variants

Region-specific data with variants like en-US, en-GB, es-MX, fr-CA, and more for precise localization.

🔌

Zero Config

Works out of the box with sensible defaults. Optional configuration for advanced use cases and customization.

📚

Extensive Documentation

Comprehensive guides, API references, examples, and best practices for every feature and locale.

Meet The Team

Chris Breuer's avatar
Chris Breuer
Open sourceror.
Core Stacks team.
Working at Stacks.js
Glenn's avatar
Glenn
Open sourceror.
Core Stacks team.
Working at Stacks.js
Mike's avatar
Mike
Open sourceror.
Core Stacks team.
Working at Stacks.js
Zoltan's avatar
Zoltan
Open sourceror.
Core Stacks team.

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Contributors

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Released under the MIT License.

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