Tracy Profiler

Tracy Profiler is a free, open-source profiler for games and other applications, aimed at developers who need detailed CPU, GPU, and runtime telemetry. Its broad instrumentation and automated capture make it a strong fit for investigating performance across processes, provided the limits of merged traces suit your analysis.

Overview

Tracy combines remote telemetry with frame and sampling profiling at nanosecond resolution. It goes beyond frame timing to capture memory allocations, locks, context switches, and screenshots associated with captured frames, giving developers several kinds of runtime activity to examine in one profiler.

The 3-clause BSD license permits use under its terms, and the license names Bartosz Taudul as copyright holder for 2017–2026. GitHub releases include a PDF manual and compiled Windows x64 binaries; prebuilt profiler binaries are also available for macOS and Linux.

Key features

CPU and GPU coverage

Direct CPU profiling integrations cover C, C++, Lua, Python, and Fortran. The project points to third-party bindings for Rust, Zig, C#, OCaml, Odin, and other languages, but those are not direct integrations. GPU profiling spans OpenGL, Vulkan, Direct3D 11 and 12, Metal, OpenCL, CUDA, and WebGPU, making Tracy relevant to projects using varied graphics and compute APIs.

Capture and trace analysis

Tracy supports remote profiling, and its 0.14 capture daemon discovers clients over UDP and saves each capture to a separate file. That can reduce manual work when collecting traces from multiple processes. A companion merge tool combines those traces, but the merged result preserves zones, messages, and plots while dropping GPU zones, memory events, and call stacks. It is useful for a combined view of some activity, not a complete record of every captured category.

When sampling is enabled, heuristic reconstruction can rebuild zone call stacks. An assistant integration uses llama.cpp models to analyze captured data and runs locally after setup; its activity stays on the user's system. The 0.14.1 release also hardened protocol string-length encoding.

Pricing

Tracy Profiler costs nothing under the 3-clause BSD license. There is no free trial because the software is free. This suits individuals and teams seeking a profiler without a subscription; the trade-off is that users must work with the project's capture and trace model rather than choosing among service tiers.

Platforms

Supported platforms include Windows, Linux, Android, FreeBSD, WSL, macOS, iOS, and QNX. Prebuilt profiler binaries are available for Windows, macOS, and Linux. That gives desktop developers a direct starting point, while support for other platforms broadens where Tracy can fit into a development workflow.

Who it's for

Tracy is best suited to developers of games and other applications who need fine-grained frame, CPU, GPU, or runtime telemetry, especially when remote or automated collection matters. Its breadth is valuable for complex traces, but teams that depend on merged GPU, memory, or call-stack data should account for those omissions before centering their workflow on multi-process merging.

Pros and cons

• Pro: CPU integrations and GPU API coverage span a wide range of languages and graphics or compute workloads.
• Pro: Memory, locks, context switches, and frame-associated screenshots add context beyond timing data.
• Pro: The UDP capture daemon automates collection from discovered clients, while the local assistant can analyze captures without sending its activity elsewhere.
• Con: Trace merging drops GPU zones, memory events, and call stacks, so a merged trace may omit important evidence.
• Con: Several language options rely on third-party bindings rather than direct integrations.

Alternatives

For a wider set of game profiling options, browse Game Profiling Software. Choose Arm Performance Studio instead if you want a free suite focused on profiling Arm CPU and GPU applications. GFXReconstruct is a free alternative for graphics API capture and replay rather than Tracy's broader telemetry scope. Consider GameBench if its Pro trial—30 minutes of Pro testing and unlimited sessions for 28 days—fits your evaluation needs. CRYENGINE, Orx, Cocos Creator, MicroProfile, and Optick are other alternatives to compare.

Verdict

Choose Tracy if you need a free profiler with broad CPU and GPU coverage, additional runtime telemetry, and automated remote capture. Its main advantage is the range of data it can collect; look elsewhere or validate your workflow carefully if merged multi-process traces must retain GPU, memory, or call-stack details.