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Performance test

Disk Speed Test

Measure browser storage read and write speed with a temporary 32 MB file that is deleted when the test finishes.

✓ Instant result✓ No sign-up✓ Runs in your browser
Ready when you are

Run a temporary browser-storage read and write test.

Local only
▰
Browser storage benchmark32 MBBrowser storage ready

This measures the browser's private storage path. Operating-system caches can make short read results faster than sustained physical-disk performance.

01

How to use this test

  1. Select Run storage benchmark to create a temporary 32 MB test file.
  2. Keep the tab open during the write and read passes.
  3. Review measured MB/s; the temporary file is removed automatically.
02

If something looks wrong

  • Close apps that are actively copying or downloading large files.
  • Repeat the test once because operating-system caches can affect short reads.
  • Treat the result as browser-storage performance, not a laboratory SSD specification.
Quick answers

Good to know.

Does this test my physical SSD or hard drive?+

It measures the browser's private storage path, which normally uses local storage but is also affected by browser caching, encryption and operating-system behavior.

Does the test leave a large file behind?+

No. A 32 MB temporary file is created inside private browser storage and removed in a cleanup step after reading.

Why can the read result look unusually high?+

The operating system or browser may serve part of the file from memory cache, so short browser tests can exceed sustained physical-drive speeds.

Keep checking

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