Audit your system memory limits with our free Device RAM tool. Inspect hardware memory bounds, Device Memory API properties, and run a safe 120MB local Float64Array buffer allocation test directly inside your browser with complete privacy.
Open the tool to trigger automatic navigator.deviceMemory inspection.
Inspect reported RAM capacity in gigabytes (e.g. 8 GB).
Click Start Buffer Stress Test to allocate and release a 120MB local Float64Array buffer.
Queries navigator.deviceMemory to inspect approximate RAM capacity in gigabytes.
Allocates 120MB in local memory using Float64Array and immediately releases for garbage collection.
All tests run in local browser memory. Zero device RAM specs leave your device.
The W3C Device Memory API exposes navigator.deviceMemory, returning approximate system RAM capacity in gigabytes.
To protect user privacy against precise device fingerprinting, the specification quantizes values into discrete buckets (0.25, 0.5, 1, 2, 4, 8 GB upper bounds).
Web applications utilize memory metrics to dynamically adjust client-side image caching, WebGL texture resolutions, and heavy data worker threads to prevent browser tab out-of-memory crashes.