Speedometer 3.0 review
A focused, open-source benchmark for interactive web workloads—not general PC hardware.
Reviewed by iTechGuides Editors · Editorial team · Updated Oct 2026
Speedometer 3.0 is an open-source browser benchmark for measuring Web application responsiveness through simulated user interactions. It runs as a normal web page in modern browsers and is aimed at browser engineers and performance teams evaluating interactive web workloads. Its scope includes to-do list workflows, rich-text and code-editor tasks, SVG and canvas chart rendering, and navigation and interaction in a news-site workload. That makes it a focused tool for assessing browser-facing application performance rather than a general-purpose PC benchmark.
The benchmark’s strongest feature is its workload coverage. Instead of reducing responsiveness to a single synthetic action, Speedometer 3.0 combines several interaction-heavy areas that reflect different application patterns. The published results include detailed metrics and geomean scoring, giving technical teams more than one summary value to review. Results can be downloaded as JSON, Classic JSON, and CSV, which supports further analysis or integration into existing performance workflows. Its web-based delivery also keeps the benchmark accessible without a separate native installation.
Speedometer 3.0 is a good choice for teams comparing browser performance or tracking changes in web-application responsiveness across the covered workloads. It is less suitable for buyers seeking broad PC hardware testing, because it measures web applications rather than the full system, and it does not provide a verified comparison database. The project’s official 3.0 page also identifies Speedometer 3.1 as the superseding benchmark, so teams starting a new evaluation should consider whether the newer release better fits their requirements.
Speedometer 3.0 pros and cons
- Where it wins
- Covers realistic to-do, editing, chart, and news-site workloads
- Provides detailed metrics and geomean scoring
- Exports results in JSON and CSV formats
- Where it doesn't
- Measures web applications rather than general PC hardware
- Runs through a browser instead of as a native desktop tool
- Speedometer 3.1 supersedes this 3.0 release
Speedometer 3.0 fact sheet, pricing and score →
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