Overview
ShortId generates short, non-sequential, URL-friendly unique identifiers ideal for use in URL shorteners, databases like MongoDB and Redis, and other systems requiring compact, secure IDs. Designed as a Dart port of the popular JavaScript library, it ensures uniqueness and avoids predictable patterns. The package is lightweight and compatible across all major platforms, making it suitable for cross-platform applications needing reliable ID generation without relying on sequential or long identifiers.
Use cases
- URL shortening services
- Database primary keys
- Session token generation
- Caching key creation
- Secure identifier generation
Key features
- Generates short, random IDs
- URL-safe characters
- Non-sequential and unpredictable
- Cross-platform support
- Lightweight and fast
- Dart port of JavaScript library
Suitable for
- Web and mobile apps needing compact IDs
- Backend services with database integration
- Applications requiring secure, non-guessable identifiers
- Projects using MongoDB or Redis
- Developers familiar with the JavaScript ShortId
Considerations
- Not cryptographically secure for high-security use cases
- IDs are not guaranteed to be globally unique without additional checks
- Depends on random number generation quality
- Limited to 16-character default length
- No built-in collision detection