Frequently Asked Questions
Answers about browser-based device testing, privacy, permissions, compatibility, and access.
How do browser-based device tests work?
Modern browsers provide secure, standardized APIs (WebRTC getUserMedia, Web Audio, Gamepad API, KeyboardEvent, and more). DeviceTry queries these direct browser interfaces to measure live signals, verify permissions, and surface hardware issues — without installing desktop drivers or software.
Does DeviceTry record or store my video or audio streams?
No. Video feeds, microphone waveforms, keystrokes, and audio playback are processed in your local browser memory and are never streamed to our servers. Optional recordings you create (voice memos, snapshots) are processed locally and can be downloaded to your device — nothing is kept unless you save it yourself. Inspection history is stored in this browser’s local storage and never leaves your machine.
Why should I run tests before a Zoom, Google Meet, or Microsoft Teams call?
Most video-meeting problems come from blocked browser permissions, the wrong default microphone or camera, or unplugged devices. A quick three-minute check — microphone level, camera stream, and speaker channels — catches those before you join.
How many diagnostic tools are available on DeviceTry?
DeviceTry offers 15 core tests plus supporting diagnostics: microphone, webcam, speakers, voice recording, tones, keyboard, mouse, gamepad, touchscreen, click speed, reaction time, screen, refresh rate, internet speed, and IP lookup. A few advanced browser diagnostics are also linked from the relevant help sections.
My browser asked for permission and I clicked Block. What now?
Permissions can be changed at any time. Click the lock (or tune) icon at the left of the address bar, set Microphone or Camera access back to “Allow”, then reload the page. Each tool page also links to detailed permission help in case access was blocked at the operating-system level.
Do the testers work on phones and tablets, or only laptops?
Both. Every tester runs in any modern mobile browser — touchscreen coverage, multi-touch, microphone, webcam, and display tools included. A few need specific hardware: the keyboard and mouse testers need physical peripherals, and the internet speed test transfers real data when started.
What do the pass, warning, and failed results actually mean?
Passed means the browser observed a healthy, responsive signal from your hardware. Warning means the device works but shows a caveat — for example elevated latency or minor stick drift. Failed means the browser could not get a usable signal at all. Results are explained in plain language and can be included in a printable report.
Can I trust the results when buying or selling used hardware?
A structured pre-purchase check catches dead or stuck pixels, chattering mouse switches, unresponsive keyboard keys, and degraded microphone input before money changes hands. The guided inspection builds a single printable report you can attach to a marketplace listing or keep as a handover record.
Which browser gives the most accurate results?
Chrome, Edge, Firefox, and Safari all work. For the fullest API coverage we recommend a current version of Chrome or Edge. Some diagnostics are limited on certain engines, and the tools tell you honestly when a measurement is not possible on your browser.
Is it really free, and do I need to create an account?
Every tester and the guided inspection are completely free with no account, email, or credit card required — and there is no paid tier. Nothing is time-limited or feature-locked.