htop/btop - Terminal System Monitoring
Basic Information
- Project Name: htop / btop++
- htop Founder: Hisham Muhammad (now maintained by the community)
- btop Founder: Jakob P. Liljenberg (aristocratos)
- Country/Region: Global Open Source Community
- Official Website: https://htop.dev/ / https://github.com/aristocratos/btop
- GitHub: https://github.com/htop-dev/htop / https://github.com/aristocratos/btop
- Type: Open-source terminal system monitoring tools
- Established: htop (2004) / btop++ (2021, predecessor bashtop 2019)
- License: htop (GPL-2.0) / btop++ (Apache-2.0)
Product Description
htop and btop++ are the most popular terminal interactive process viewers and system monitoring tools for Linux/macOS/BSD systems, serving as modern alternatives to the traditional top command. htop offers a classic, feature-rich interactive interface; btop++ represents the latest evolution in terminal monitoring, combining comprehensive system data with stunning visualizations, supporting charts, heatmaps, and full mouse interaction. btop++ v2.3.1 is the latest stable version as of 2026.
Core Features/Characteristics
htop
- Interactive Process Management: View, search, filter, sort, and terminate processes
- Tree View: Display parent-child relationships of processes
- Colorful Interface: Intuitive color-coded resource usage
- Customizable Layout: Configurable meters and columns
- Multi-platform: Linux, FreeBSD, macOS, OpenBSD
btop++
- Modern Visualizations: Progress bars, percentage indicators, charts, heatmaps
- Comprehensive Dashboard: Unified view of CPU, memory, network, disk
- Full Mouse Support: Intuitive mouse navigation and interaction
- GPU Monitoring: GPU usage monitoring (expanding)
- Theme System: Multiple color themes
- Written in C++: More lightweight and efficient than Python version
Business Model
- Completely Free and Open Source: No commercial versions
- Community-Driven: Developed and maintained through GitHub community
Installation Methods
- System package manager (apt/yum/brew, etc.)
- Snap/Flatpak
- Source code compilation
Target Users
- System Administrators
- Developers
- DevOps Engineers
- Linux Users
- Anyone needing to monitor system resources
Selection Suggestions
| Scenario | Recommended Tool |
|---|---|
| Classic and stable process management | htop |
| Modern comprehensive monitoring dashboard | btop++ |
| Minimal resource usage | htop |
| Visual experience and data density | btop++ |
| Remote SSH operations | htop (more lightweight) |
| Local development monitoring | btop++ (more aesthetically pleasing) |
Comparison with Competitors
| Dimension | htop | btop++ | top | Glances |
|---|---|---|---|---|
| Visualization | Basic colors | Charts + heatmaps | Plain text | Comprehensive |
| Mouse Support | Limited | Full | None | Limited |
| Resource Usage | Very low | Low | Lowest | Medium |
| GPU Monitoring | None | Supported | None | Limited |
| Web Interface | None | None | None | Supported |
| API Export | None | None | None | 15+ backends |
Relationship with OpenClaw Ecosystem
htop and btop++ are fundamental tools for OpenClaw operations personnel to quickly diagnose system resource issues in the terminal. When AI agents experience performance issues, operations personnel can use these tools to quickly view CPU, memory, and process statuses. Although they do not provide API or data export capabilities, they are indispensable as immediate diagnostic tools in daily operations. For OpenClaw production environment monitoring, it is recommended to combine tools like Prometheus+Grafana or Netdata for persistent monitoring.
External References
Learn more from these authoritative sources: