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Web Performance Test

Measure your browser and device's computing performance, evaluated with scores and ranks. You can also check the support for the latest Web standard features at a glance.

Warning

This benchmark runs intensive calculations, which may temporarily drain the battery on smartphones and mobile devices.

Test Browser Computing Performance​

Click the "Start Test" button to run intensive computations in the browser and calculate a performance score.

Test Environment:Unknown Browser (Unknown OS)
Single Core (1 Worker)
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Not yet run
Multi Core (4 Workers)
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Not yet run
描画性能 (Canvas & DOM)
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Not yet run

Browser Feature Support

Social & Media

0 / 5
Smooth and high-quality viewing of images and videos
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AVIF / WebP SupportRequired↗
Next-generation lightweight images. Directly affects loading speed.
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AV1 DecodeRequired↗
Allows playback of 4K videos like YouTube with low overhead and high quality.
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Web Share API↗
Calls the OS standard share menu to quickly share images or links.
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Speculation Rules↗
Preloads pages before clicking links, enabling instant screen transitions.
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fetchpriority attributeRequired↗
Prioritizes loading important images to improve display speed.

Business & Tools

0 / 5
Can run app-grade sites like Notion and Figma
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EyeDropper API↗
Eyedropper tool to extract any color on the screen. Streamlines design work.
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Navigation API↗
Next-gen foundational technology for smoother, more stable SPA screen transitions.
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Anchor Positioning APIRequired↗
Ensures popups stick correctly to their target buttons.
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Popover APIRequired↗
Displays menus on top of all other elements without interference.
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Compression Streams APIRequired↗
Allows fast ZIP compression and decompression directly in the browser.

Entertainment & Creative

0 / 6
Comfortable 3D, animations, and gaming
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WebGPURequired↗
Runs full-scale 3D games and AI image generation in the browser.
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WebXR Device API↗
Directly controls VR and AR devices from the browser.
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View Transitions APIRequired↗
Smoothly fades screen transitions like a native app.
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Scroll-driven AnimationsRequired↗
Supports rich, scroll-linked visual effects.
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Offscreen CanvasRequired↗
Offloads heavy graphics processing to the background for smoother performance.
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Web Audio (Spatial Audio)Required↗
Supports spatial (3D) audio natively in the browser.

System & Misc

0 / 5
App-like features, notifications, and login comfort
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WebAuthn (Passkeys)Required↗
Enables passwordless logins using fingerprint or face recognition.
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Badging API↗
Displays unread badges on app icons.
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Screen Wake Lock APIRequired↗
Prevents the screen from turning off automatically while browsing.
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Web USB↗
Directly controls USB-connected devices from the browser.
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File System Access API↗
Directly edits and saves files on your device.

About the Score​

This tool measures aggregate performance for floating-point arithmetic, integer arithmetic, and memory access using parallel processing (Web Workers) in the browser.

  • Single Core: Performance using only one Worker. This indicator is close to the processing power of the JavaScript main thread.
  • Multi Core: Parallel performance using all logical cores of the device. Shows the ability to handle heavy processing and multitasking.

Evaluation Ranks​

Evaluates from Rank S to F based on the measured score.

  • Rank S: Unrivaled speed. Latest high-end devices.
  • Rank A: Very comfortable. Most apps run extremely smoothly.
  • Rank B: Comfortable. Headroom to spare even when multitasking.
  • Rank C: Standard. Sufficient performance for general web browsing.
  • Rank D-F: Basic performance. Complex sites may experience slowdowns.

Browser Feature Support​

Determines how well your browser supports the latest Web technologies (WebGPU, Passkeys, AV1 decoding, etc.). These are essential elements for enjoying a more advanced and faster Web experience.

Privacy

🔒 All measurement and judgment processes are done entirely within your browser. Specific device information or measurement results are never sent to any server.