Everything MCUHex does today is free
Pro is what gets built next, and it will be $9 a month when it does. Nothing you use today moves behind it.
Free
$0 per developer / month
Everything MCUHex does today, in the browser, with no account until you upload an ELF.
- Firmware flashing over SWD
- Live variable monitoring from your .elf or .out
- Table and chart views
- CSV export of captured rows
Pro
$9 per developer / month
What gets built next, for the engineer who lives in the debugger all day.
Coming soon
- Everything in Free
- Serial and RTT console
- High-rate sampling with full-resolution charts
- Source-level debugging — breakpoints, stepping, call stack
- Long-run capture history
Questions
Is anything locked behind a paid plan today?
No. Everything MCUHex does right now — SWD flashing, live variable monitoring from a .elf or .out, table and chart views, CSV export — is on the free plan and stays there. The Pro column describes work that is not built yet.
What does "per developer" mean?
One seat per engineer, billed monthly. Boards and debug probes are not counted — one engineer can work across as many targets as they like on a single seat.
When can I actually pay for Pro?
Not during the beta — there is no checkout yet. Billing opens when the first Pro feature ships, and which feature that is depends on what people ask for. The first 100 accounts that connect a real board and parse an ELF get that feature free on their account for as long as MCUHex runs.
Which targets does MCUHex support?
ARM Cortex-M parts over SWD, with STM32 as the best-tested family. JTAG-only devices are not supported.