Test browser storage APIs including localStorage, IndexedDB, and Cache API. Check available storage quota, test read/write performance, and verify storage functionality. Essential for web app development and storage troubleshooting.
Modern browsers allocate storage quotas based on available disk space, typically ranging from 50MB to several gigabytes. Storage is partitioned by origin (domain), meaning each website has its own isolated storage space. This tester helps you understand your browser's storage capabilities and limitations.
Start with the live tester below. Supporting details, FAQs, and troubleshooting guidance are placed after the tool so the main action is easier to find and use immediately.
Test browser storage performance and check available quota.
Common problems
If the live tester does not behave as expected, these are the first checks most users should try before assuming the hardware is broken.
Check storage quota - see how much space is available
Test read/write speeds - important for app performance
Test different storage types - localStorage vs IndexedDB
Clear storage if needed - free up space
Test browser storage APIs including localStorage, IndexedDB, and Cache API. Check available storage quota, test read/write performance, and verify storage functionality. Essential for web app development and storage troubleshooting.
Modern browsers allocate storage quotas based on available disk space, typically ranging from 50MB to several gigabytes. Storage is partitioned by origin (domain), meaning each website has its own isolated storage space. This tester helps you understand your browser's storage capabilities and limitations.
Test your keyboard input, detect dead keys, and verify all keys are working correctly.
Test mouse buttons, scroll wheel, pointer tracking, and touch input.
Test your microphone input levels in real-time. Verify microphone is working.
Test your speakers or headphones with reference tones.
Helpful questions
Use these answers to understand results, browser limitations, permissions, and sensible next troubleshooting steps.
Open the live storage test on this page and follow the prompts shown in the tester area. The tool runs directly in your browser, so you can check your device without installing additional desktop software or signing in.
Check browser permissions, confirm the device or browser feature is enabled, and reload the page if needed. Many browser-based testers depend on permission prompts, secure context support, or hardware access that must be approved before the test can run fully.
Web app development - test storage functionality. It can help you confirm whether the issue is caused by the hardware itself, a browser permission setting, or a system configuration problem before you spend more time debugging.