Head-to-head · Debuggers
GDB vs SEGGER Ozone
GDB leads on 1 check, SEGGER Ozone on 0, and 5 are even. Who comes out ahead on the 6 yes/no, price and count checks where we have data for both products. The editor score weighs everything else too.
Our verdict
- Highest scoreGDB · 9.4/10
- Free planonly GDB
- Most featuresGDB · 5 of 5
GDB scores higher on our rubric for debuggers: 9.4 against 7.9 out of 10; our editors rank them #1 and #11.
GDB offers free plan; SEGGER Ozone doesn't.
GDB is the better fit for broad native and systems debugging. SEGGER Ozone is the better fit for embedded ARM and RISC-V teams.
- GDB fits best
Broad native and systems debugging
- SEGGER Ozone fits best
Embedded ARM and RISC-V teams
Advertiser disclosure: iTechGuides is reader-supported. Vendors can pay for top positions in our rankings and for a place on other products' pages, and we may earn a commission when you click some links. Bought places stand at the number bought; this page and our disclosure say so. Paying vendors may get a fuller, more detailed review from our editors, and that review can change their score. How we rank.
Side by side
| Feature | GDB 9.4/10 Visit ↗ | SEGGER Ozone 7.9/10 Visit ↗ |
|---|---|---|
| At a glance | ||
| Editor score | 9.4 | 7.9 |
| Ranking | #1 in Debuggers | #11 in Debuggers |
| Best for | Broad native and systems debugging | Embedded ARM and RISC-V teams |
| Pricing model | Free | Paid |
| Starting price | Free plan | — |
| Free plan | ✓ (best) | — |
| Free trial | — | — |
| Deployment | Desktop | Desktop |
| Platforms | Windows, macOS, Linux | Windows, macOS, Linux |
| Support | Community, Docs | Email, Community, Docs |
| Built for | Solo, Small business, Mid-market, Enterprise | Small business, Mid-market, Enterprise |
| Features GDB 5/5 · SEGGER Ozone 3/5 | ||
| Remote debugging | ✓ | ✓ |
| Conditional breakpoints | ✓ | ✓ |
| Exception breakpoints | ✓ | ✓ |
| Time-travel debugging | ✓ (best) | Not checked yet |
| Core dump debugging | ✓ (best) | Not checked yet |
| Specs | ||
| Supported languages | Ada, Assembly, C, C++, D, Fortran, Go, Objective-C, OpenCL, Modula-2, Pascal, Rust | C, C++, Rust, Assembler |
| Target platforms | UNIX, Microsoft Windows, macOS; native, remote, and simulator targets | ARM, RISC-V |
| Our review | ||
| Pros |
|
|
| Cons |
|
|
| Our verdict | GDB is a free, open-source source-level debugger for examining programs while they run or after they crash. It is aimed at developers working across native applications, systems software, embedded or remote targets, and simulator… Read the review → |
SEGGER Ozone is a standalone source-level debugger and performance analyzer for embedded applications running on ARM and RISC-V microcontrollers. It is aimed at teams working with C, C++, Rust, or assembler who need more than basic… Read the review → |
Strengths and trade-offs
GDB — where it wins
- Supports Ada, C, C++, Go, Rust, Fortran, Pascal, and assembly
- Includes remote debugging, core dumps, and simulator targets
- Offers reverse execution, replay, and program-state modification
Where it doesn't
- No AI-assisted debugging features
- Remote debugging uses serial, socket, TCP, or UDP connections
- Its language coverage centers on native and systems-oriented development
SEGGER Ozone — where it wins
- Source-level debugging for C, C++, Rust, and assembler
- RTOS awareness, instruction tracing, profiling, and coverage
- Remote debugging, scripting, and power profiling support
Where it doesn't
- Paid product with no free plan
- Focused on embedded microcontroller development workflows
- Advanced capabilities depend on compatible debug connections
- GDB9.4/10 · Free plan
A free, open-source debugger with unusually broad language, target, and remote-debugging coverage.
Visit GNU ProjectFull verdict → - SEGGER Ozone7.9/10 · Paid
A deep standalone debugger for ARM and RISC-V teams working across code, trace, and performance.
Visit SEGGER OzoneFull verdict →
More comparisons
All debuggers comparisons → · Full ranking →
Reviewed by iTechGuides Editors · Editorial team · Updated Oct 2026
Last updated · How we research and update






