Private browser utilities · browser-local

Utility Lab: ten high-demand browser tools

Use ten private browser tools for random choices, QR codes, text counts, Base64, timers, voice recording, JSON, keyboard checks, and aim practice.

Work happens in the current browser. The route does not require an account or a server-side processing job.

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Task-first navigation

Find the right browser tool without a crowded toolbar.

Use the direct routes below for a focused workspace. Each route exposes its own browser compatibility, permission, and local-data boundary before a device or media action begins.

What it does

Useful, focused capabilities

Random selection, writing, developer, QR, and time utilities
Local microphone recording with explicit permission
Keyboard and aim-practice tools based on browser input events
One focused collection rather than ten primary-navigation links

Browser compatibility

Requirements and honest fallbacks

A modern JavaScript-enabled browser; specific optional APIs are described on each tool page.

JavaScript-enabled modern browser
File API
local storage
media capture for Voice Recorder

Questions people ask

Clear answers and limits

Does Utility Lab upload text, lists, or generated codes?

No. The supplied utilities perform their listed work in the current browser and do not include a content-upload path.

Which Utility Lab tool needs a browser permission?

Voice Recorder asks for microphone access only after you choose to record. Other supplied Utility Lab tools do not need camera, microphone, or screen-capture permission.

Are all Utility Lab features identical in every browser?

No. Each route identifies optional browser APIs such as MediaRecorder, BarcodeDetector, Notifications, Wake Lock, Pointer Lock, or Intl.Segmenter and provides an honest fallback or limitation.

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