Free Online Browser Tools
Test webcam, microphone, keyboard, mouse, battery, speakers, speech, typing speed, Pomodoro, screen DPR, browser info, and clipboard — private diagnostics in your tab.
Browse every free browser tools on FileToolsHub. Open a tool to upload or paste your input, run the action, and download or copy the result — no installation and no paid plan required for everyday use.
26 free online tools
Free online browser tools
FileToolsHub browser tools diagnose the current tab — webcam, microphone, keyboard, mouse, speakers, speech synthesis, battery, clipboard, screen size, and more — without installing apps.
Everything runs locally. Camera and mic streams are not recorded or uploaded; key, pointer, and clipboard data stay on your device. Use these pages before a call, when keys stick, or when support asks for browser details.
Browse the full set on /browser, or jump between diagnostics from related links. Each tool has a stable /tool/ URL.
- Confirm a webcam works before a meeting
- Check microphone input without recording
- Find sticky or dead keyboard keys
- Test mouse buttons and scroll
- Read battery, online status, or notification permission
- Test speakers or text-to-speech voices
- Copy user agent details for a support ticket
- Verify clipboard write and read permissions
Popular browser tools
Frequently used tools in this category.
Webcam Test
Check that your webcam works with a live preview in this tab — nothing is recorded or uploaded.
Microphone Test
Verify your mic with a live input-level meter. Audio stays on your device — nothing is recorded or uploaded.
Keyboard Test
Test your keyboard with a live visual layout — keys light up as you press them, plus key/code event logs.
Mouse Test
Test mouse movement, left/middle/right clicks, and scroll wheel inside a private on-page pad.
Screen Resolution Checker
See screen size, available area, window size, pixel ratio, and orientation — updates live on resize.
Browser Info
Inspect user agent, platform, language, concurrency, timezone, and connection hints from your browser.
Clipboard Test
Verify clipboard write and read permissions with sample text — contents never leave your device.
Battery Status
Check battery level, charging state, and time remaining via the Battery Status API — private, in-browser.
All browser tools
Complete list — 26 tools.
Online Status
See whether your browser currently reports online or offline, with live updates.
Notification Permission Test
Check and request browser notification permission, then fire a local sample notification.
Speech Synthesis Test
Test text-to-speech voices in your browser — speak sample text with local Speech Synthesis.
Speaker Test
Play a short local beep through your speakers or headphones using Web Audio.
Device Pixel Ratio
Inspect devicePixelRatio and approximate physical screen pixels for your display.
LocalStorage Size
Estimate how much localStorage this origin is using — keys and approximate UTF-16 bytes.
Typing Speed Test
Measure words-per-minute and accuracy with a timed typing test — all in your browser.
Pomodoro Timer
Focus/break Pomodoro timer with customizable intervals — runs locally in your tab.
Stopwatch
Simple stopwatch with start, pause, and reset — centisecond precision in your browser.
Metronome
Browser metronome with adjustable BPM — short clicks via Web Audio, nothing uploaded.
Gamepad Test
Test connected gamepads — see button presses and axis values live in your browser.
Vibration Test
Trigger short vibration patterns via the Vibration API — mainly on mobile browsers.
Wake Lock Test
Request a screen wake lock so the display stays on while this tab is visible.
Fullscreen API Test
Enter and exit fullscreen on a page element using the Fullscreen API.
Media Devices List
List cameras, microphones, and speakers available to this browser tab.
Storage Quota Estimate
Estimate origin storage usage and quota via the StorageManager API.
Coin Flip
Flip a fair virtual coin — heads or tails — instantly in your browser.
Yes No Picker
Get a random Yes or No answer for quick decisions — private and instant.
Looking for something else? Browse the full sitemap.
Why use FileToolsHub for browser tools?
FileToolsHub keeps browser tools in one place so you do not bounce between unrelated converter sites. Each tool page explains how the workflow works, lists benefits, and answers common questions so you can finish the job without searching for instructions.
When you need a different format or a follow-up step, related tools and category links make it easy to continue — for example merge then compress, or format JSON then validate. Browse the sitemap if you want a full alphabetical-style list by category.
Every tool in this category is free for unlimited everyday use. Prefer mobile? The same pages work in phone and tablet browsers so you can convert a file or format text when you are away from your desktop.