GFXReconstruct
GFXReconstruct: A free, open-source choice for Vulkan and Direct3D 12 capture, replay, and GPU analysis. Ranked #14 of 22 in Game Profiling Software by our editors (7.0/10); pricing: Free plan; best for free Vulkan and Direct3D capture replay.
At a glance
- Editor score7.0 / 10
- PricingFree plan
- Best forFree Vulkan and Direct3D capture replay
- Free planYes
- Paid fromFree
- Founded2009 · Fort Collins, Colorado, United States
- Facts checked22 Sep 2026
Where it wins
- Free and open source across Windows, Linux, macOS, and Android
- Supports Vulkan and Direct3D 12 capture and replay
- Includes trimming, shader extraction, conversion, and GPU analysis
Where it doesn't
- Does not provide CPU profiling
- Direct3D 12 capture and replay is limited to Windows
- Meta Quest and OpenXR support are experimental
Our verdict on GFXReconstruct
GFXReconstruct is an open-source suite for capturing and replaying graphics API calls from games and other applications. It is aimed at game and application developers, graphics engineers, driver and GPU teams, QA groups, and researchers working with GPU workloads. The project records Vulkan and Direct3D 12 command streams into capture files, then replays them for debugging, performance analysis, optimization, regression testing, and platform bring-up. It supports Windows, Linux, macOS, and Android, with Meta Quest support marked experimental.
Its main strength is the breadth of its capture-file workflow. Beyond capture and replay, GFXReconstruct provides deterministic replay across hardware and platforms, capture-file inspection, compression and decompression, conversion to JSON Lines, SPIR-V shader extraction, and capture trimming and optimization. GPU workload isolation and bottleneck analysis extend the tool beyond basic replay, making it suitable for investigating graphics workloads and narrowing performance issues at the GPU level. These capabilities give graphics-focused teams a practical framework for debugging and comparing captured API activity.
GFXReconstruct is a focused graphics API capture and replay framework rather than a general-purpose profiler. CPU profiling is not provided, so teams seeking CPU or broader frame-time profiling should choose a tool that covers those areas. Direct3D 12 workflows are also tied to Windows, while Meta Quest and OpenXR support remain experimental. Choose GFXReconstruct when free, open-source Vulkan or Direct3D 12 capture, replay, file analysis, and GPU workload investigation are the priority; look elsewhere when CPU analysis or mature coverage of experimental platforms is central.
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GFXReconstruct pricing
GFXReconstruct fact sheet
| Free plan | Yes |
|---|---|
| Paid from | Free |
| CPU profiling | No |
| GPU profiling | Yes |
| Memory profiling | Not verified |
| Frame-time analysis | Not verified |
| Render API capture | Yes |
| Remote profiling | Not verified |
| Supported platforms | Windows, Linux, macOS, and Android; Meta Quest support is experimental |
| Deployment | Desktop, Mobile |
| Platforms | Windows, Linux, macOS, Android |
| Support | Community, Docs |
| Built for | Small business, Mid-market, Enterprise (editorial estimate) |
| Pricing | Free plan |
| Website | lunarg.com |
| Facts checked | 22 Sep 2026 |
Alternatives to GFXReconstruct
- Tracy ProfilerA free, broad profiler covering CPU, GPU, memory, frames, and remote capture.9.4
- RAD TelemetryA wide-ranging telemetry suite for teams investigating CPU, GPU, memory, and frame-time performance.9.2
- Arm Performance StudioA free, multi-tool suite for CPU, GPU, frame, API, and shader analysis on Arm graphics.9.0
See all GFXReconstruct alternatives →
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Reviewed by iTechGuides Editors · Editorial team · Updated Oct 2026
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