Free tools which get the job done.
General Usage
| Tool | Use case | GUI | Open source | OS | Notes |
|---|---|---|---|---|---|
| DBeaver | Database Management Tool | ✅ | ✅ | Windows/OSX/Linux | |
| Tailviewer | Log Files Viewer | ✅ | ✅ | Windows | |
| iPerf3 | Speed test (Bandwidth) tool for TCP, UDP and SCTP | ✅ | Windows/ OSX/Linux/Android | Server and Client |
Hardware Related
| Tool | Use case | GUI | Open source | OS | Notes |
|---|---|---|---|---|---|
| com0com | Null-modem emulator can be used to provide serial interface for device emulators | ✅ | ✅ | Windows |
Suites
| Suite | Open source | OS | Notes |
|---|---|---|---|
| SysInternals | Windows | ||
| Didier Stevens Suite | ✅ | Mostly Windows, and some cross-platform python scripts | |
| Nirsoft Launcher | Windows |