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Free Sidebar Gadgets for Windows 11/10/8.1/7 Desktop

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Dear users,
Thanks to your incredible support, the fundraising goal for the power backup system has been fully reached, and photos of the installed power backup system are now available.
A total of $2200+ was raised with help from more than 45 contributors.
Your contributions made it possible to install a reliable backup power system and restore stable working conditions during long power outages.
I am sincerely grateful to everyone who contributed to this project.
Power Backup Project Completed — Thank You


Can anybody help me to translate few my gadgets to other languages (Korean, Thai, Vietnamese, etc.)? If you’re that person, please call me using the contact form.

Try our new tools: Geomagnetic Storms Sidebar Gadgets Recent Indicator, Hocus pocus, Write your name in nautical flags.

Online Subwoofer test

The 60 second online subwoofer test. It's free, simple and no sign up required. How low can you go?

Click the play button to begin the test.

The current frequency is:

Hertz

Additional Test Tones

20Hz
30Hz
40Hz
50Hz
60Hz
70Hz
80Hz
90Hz
100Hz
Click here to download all low frequency test tones.

This page contains a low frequency sweep and a series of tones for testing the response of subwoofers. Click the play button below to begin the test. You will hear a sine wave start at 150Hz and gradually decrease to 1Hz over the course of 60 seconds. We have also provided a series of continuous tones to help you get the most out of your subwoofers.