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Developer ToolsAlternative to Chrome DevTools ProfilerAlternative to DatadogAlternative to FlameGraph

speedscope

A fast, interactive web-based flamegraph viewer for profiling data across all runtimes.

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LicenseMIT
GitHub stars7.5k
Last commit1 weeks ago
Tags5 topics
Flamegraph ViewerInteractive ProfilerDeveloper ToolsTypescriptTimeline Visualizer
Overview

Why consider speedscope?

speedscope is a fast, interactive web-based flame graph viewer written in TypeScript by Jamie Wong. It imports profiles from Node.js, Chrome, Firefox, Go pprof, Python, Ruby, and Linux perf, rendering zoomable timeline graphs that process multi-million sample traces locally.

Guided learning

Learn speedscope by building

Practical setup notes, real use cases, and copy-ready examples in one focused guide.

1 min read 2 sections
In this guide2 sections

Overview of speedscope

speedscope provides buttery-smooth interactive navigation through large performance profiles in the browser.

Quickstart

bash
1npx speedscope /path/to/profile.json

speedscope is licensed under the permissive MIT License.

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speedscope FAQs

speedscope is listed as a Developer Tools tool on TiloBox. Review the overview, features, and official documentation on this page to decide whether it solves your specific workflow.

Start with the project's GitHub repository and official website for supported installation and deployment instructions. Test the setup with representative data or a small project before rolling it out more widely.

speedscope is listed under the MIT license. Read the complete license text and the project's notices before using, modifying, or distributing the software.

Production readiness depends on your requirements. Review maintenance activity, security practices, documentation, backup and upgrade procedures, and compatibility with your stack; then validate it in a non-production environment.

speedscope is listed as an alternative to Chrome DevTools Profiler. Compare the core workflow, deployment model, integrations, and licensing against your must-have requirements before switching.