FREEDOM251

Freedom251 › Compare

Side by side

Black Magic Debug vs FlowStorm

Both stand on debuggers. Which one you can start free with, which one lets you read the code, and what each costs once you pay.

Black Magic Debug

Free plan LinuxMacWindows

Choose Black Magic Debug if you need a free JTAG/SWD debugger with automatic target detection and control over your embedded development setup. It supports multiple host systems and useful debugging functions, but you need compatible probe hardware and a suitable toolchain. Consider the desktop-app programming speed and the status of older probe models when choosing hardware.

Visit Black Magic Debug

FlowStorm

Free plan LinuxMacSelf-hosted+1

FlowStorm combines execution recording with stepping, inspection, visualizations, and thread-event timelines for Clojure and ClojureScript. Check its runtime requirements and the async/await limitation against your project before choosing it.

Visit FlowStorm

The facts

Black Magic DebugFlowStorm
Free planYesYes
Open sourceNot publishedNot published
Runs onLinux, Mac, WindowsLinux, Mac, Self-hosted, Windows
Lowest paid planFree or on requestFree or on request
Plans published11
MakerNot publishedNot published
Websiteblack-magic.orgflow-storm.org
On debuggers#1 of 27#2 of 27

Black Magic Debug: what it does well

  • Automatic target detection avoids target-specific configuration scripts.
  • Provides watchpoints, flash breakpoints, memory and register examination, and flash programming.
  • Supports semihosting, Serial Wire Output, and USB DFU firmware upgrades.
  • Runs on Windows, Linux, and macOS.
  • Open-source project with guides for PlatformIO and STM32CubeIDE.

What to know first

  • Requires a compatible Black Magic Probe and a suitable target toolchain.
  • Programming is a little slower in desktop-app mode.
  • Several older probe models are legacy and not in production.

FlowStorm: what it does well

  • Records execution without breakpoints or code changes
  • Provides stepping, value inspection, and exception debugging
  • Timeline shows interleaving of thread instructions
  • Free and open source
  • Supports plugins and real-time visualizations

What to know first

  • Requires JDK 17 or later and Clojure 1.10.0 or later
  • Vanilla FlowStorm lacks support for the specified async/await feature

Alternatives to Black Magic Debug Alternatives to FlowStorm The whole list