Best GDB Alternatives in 2026
Updated
20 apps from debuggers ranked against GDB on the same published basis.
- 1GDB vs LLDB
- 2GDB vs IDA Pro
- 3GDB vs FlowStorm
- 5GDB vs RenderDoc
- 6GDB vs Delve
- 7GDB vs Xdebug
- 8GDB vs TRACE32
- 9GDB vs Black Magic Debug
- 10GDB vs dnSpyEx
- 11GDB vs Erlang Debugger
- 12GDB vs OpenOCD
- 13GDB vs Perl Debugger
- 14GDB vs PonyDebugger
- 15GDB vs pyOCD
- 16GDB vs CUDA-GDB
- 17GDB vs FLEX
- 18GDB vs UDE Universal Debug Engine
- 19GDB vs WinDbg
- 20GDB vs OllyDbg
- 21GDB vs rr
GDB alternatives compared
| # | App | Score | Free plan | From | Runs on |
|---|---|---|---|---|---|
| 1 | LLDB | 6.8 | Free plan | Free | Android, iOS, Linux, Mac, Windows |
| 2 | IDA Pro | 6.6 | Free plan | $91.58/mo | Linux, Mac, Windows |
| 3 | FlowStorm | 6.5 | Free plan | Free | Linux, Mac, self-hosted, Windows |
| 5 | RenderDoc | 6.5 | Free plan | Free | Android, Linux, Windows |
| 6 | Delve | 5.6 | No | — | API, Linux, Mac, self-hosted, Windows |
| 7 | Xdebug | 5.6 | No | £16.67/mo | Linux, Mac, self-hosted, Web, Windows |
| 8 | TRACE32 | 5.4 | No | — | Windows, Mac, Linux |
| 9 | Black Magic Debug | 5.3 | No | — | Windows, Mac, Linux |
| 10 | dnSpyEx | 5.3 | Free plan | Free | Linux, Windows |
| 11 | Erlang Debugger | 5.3 | No | — | Windows, Mac, Linux |
| 12 | OpenOCD | 5.3 | No | — | Windows, Mac, Linux |
| 13 | Perl Debugger | 5.3 | No | — | Linux, Mac, Windows |
| 14 | PonyDebugger | 5.3 | No | — | Web, Mac, iOS |
| 15 | pyOCD | 5.3 | No | — | Windows, Mac, Linux |
| 16 | CUDA-GDB | 5.2 | No | — | Linux |
| 17 | FLEX | 5.2 | No | — | iOS |
| 18 | UDE Universal Debug Engine | 5.2 | No | — | Windows |
| 19 | WinDbg | 5.2 | No | — | Windows |
| 20 | OllyDbg | 5.1 | No | — | Windows |
| 21 | rr | 5.1 | No | — | Linux |
Make your app an alternative to GDB
See the priceThe sponsored alternative slot on this page is labelled and never changes the order above.
Questions about GDB alternatives
What is the best alternative to GDB?
LLDB, number 1 in debuggers with a score of 6.8 out of 10. The others here: IDA Pro, FlowStorm, RenderDoc and 16 more.
What is the best free alternative to GDB?
LLDB is the best-ranked alternative with a free plan. 5 of the 20 alternatives here publish a free plan on their own pricing pages.
How are these alternatives ranked?
Ranked free-and-open first: a usable free tier and open-source code, then the platforms it runs on and its documentation. Paid placements never change a rank.