Linux has many utilities that report memory usage such as free, top, and ps.
In this roundup we focus on useful tools that help you work out the amount of memory used by programs. Some of the tools focus on the visualisation of memory usage, others follow a more traditional approach.
There’s a wide range of tools available for Linux.
Here’s our verdict captured in a legendary LinuxLinks-style ratings chart. Only free and open source software is eligible for inclusion here.

Explore each tool in detail by clicking the links below.
| Process Memory Tools | |
|---|---|
| ps_mem | Accurately reports memory usage of programs |
| pscircle | Visualizes Linux processes in a form of radial tree |
| psrecord | Record the CPU and memory activity of a process |
| process-mem | Display memory used by processes |
| process-map | Visualize the virtual memory of a process |
| mstat | Measure memory usage of a program over time |
| alram | Helps when available memory is below threshold, with optional task killer |
Read our complete collection of recommended free and open source software. Our curated compilation covers all categories of software. Spotted a useful open source Linux program not covered on our site? Please let us know by completing this form. The software collection forms part of our series of informative articles for Linux enthusiasts. There are hundreds of in-depth reviews, open source alternatives to proprietary software from large corporations like Google, Microsoft, Apple, Adobe, IBM, Cisco, Oracle, and Autodesk. There are also fun things to try, hardware, free programming books and tutorials, and much more. |
