Online audio, image and screen tools

Check your devices, record and fix images

Before a video interview or an online class, you want to know that the webcam and microphone work. After buying a monitor, you want to find dead pixels while you can still return it. A keyboard with a sticky key, a mouse that double-clicks on its own or a game controller with a drifting stick can all be checked in a few seconds. This family groups those tests with simple tools for sound, recording and images.

What each tool is for

Musicians will reach for the metronome to keep time and the guitar tuner, which listens through the microphone. The tone generator plays a frequency you choose, which is useful for testing speakers or headphones. To capture something, the voice recorder records audio and the screen recorder records what happens on your screen, for a tutorial or a bug report. On the image side, the image converter turns WebP or PNG files into JPG and can compress and resize them, crop image trims a photo to the frame you want, and JPG to PDF combines pictures into a single PDF document, handy for sending scanned receipts or forms.