IPFS (InterPlanetary File System) clients allow users to interact with the IPFS decentralized file storage network. Key IPFS clients include **Kubo**, **js-IPFS**, and **go-IPFS**—each with its specific focus, language base, and use cases.

### 1. **Kubo**
- **Language**: Go
- **Primary Use**: Kubo is the reference implementation of IPFS and is the most widely used IPFS client. It’s optimized for the majority of IPFS network interactions and has a rich feature set.
- **Notable Features**: Kubo provides robust support for IPFS features like content routing, file sharing, and storage pinning. It is optimized for performance and stability, making it suitable for general use and production environments.
- **Use Cases**: Best suited for server environments, large-scale applications, and services that need reliable, high-performance access to IPFS.

### 2. **js-IPFS**
- **Language**: JavaScript
- **Primary Use**: Built for compatibility with browser environments, js-IPFS enables client-side IPFS interactions.
- **Notable Features**: This implementation is tailored for applications in which IPFS functionality is embedded directly into web apps, allowing for in-browser IPFS operations. It is less resource-intensive and ideal for lightweight applications but lacks some of the heavy-duty features of Kubo.
- **Use Cases**: js-IPFS is ideal for front-end applications and in-browser usage where users don’t need the full functionality of IPFS, like direct file sharing without a backend server.

### 3. **go-IPFS**
- **Language**: Go (similar to Kubo, as it was the original IPFS implementation)
- **Primary Use**: go-IPFS was the initial IPFS implementation and has now evolved into Kubo. While technically deprecated, it laid the foundation for IPFS functionality and still serves as a model for Kubo’s performance and structure.

### 4. **Other Clients**
- **IPFS Companion**: A browser extension that allows easy access to IPFS directly from the browser, connecting to local or remote IPFS nodes.
- **Helia**: A newer TypeScript-based IPFS implementation aiming to provide enhanced modularity and flexibility, potentially useful for advanced JavaScript/TypeScript developers.

Each of these clients has strengths tailored to specific environments. Kubo remains the go-to for general and server-based IPFS needs, while js-IPFS is excellent for integrating IPFS into web applications.