Tone Generator
Instant frequency tone playback — test your speakers, subs, headphones & hearing with precision
Need to confirm your speaker’s bass output? Want to check if your headphones handle high frequencies cleanly? With Tone Generator you get a fast-access, web-based solution to play specific frequencies and evaluate your system or your hearing.
Tone Generator
Note: Most mobile phone speakers cannot accurately reproduce very low bass frequencies or ultrasonic frequencies. Results may vary depending on your device.
DISCLAIMER: By using this frequency generator, you acknowledge that you are using it at your own risk. The creators and providers of this tool are not liable for any damage to speakers, hearing, or other equipment that may result from its use. Please use responsibly and at safe volume levels to protect your hearing and equipment.
What you can do
Adjust Volume easily, with presets for Low / Mid / High.
Select common frequency ranges:
Bass & Sub-bass (20 Hz, 50 Hz, 60 Hz, 100 Hz)
Mid-range (220 Hz, 500 Hz, 1 kHz, 2.5 kHz)
High & Ultra-high (3.5 kHz, 5 kHz, 7.5 kHz, 10 kHz)
Ultrasonic / Near-ultrasonic (15 kHz, 17 kHz, 19 kHz, 20 kHz)
Note: Speaker/phone limitations apply — many mobile devices cannot reproduce very low bass or ultrasonic frequencies.
DISCLAIMER: Use responsibly — extreme volumes or frequencies may damage speakers/hearing.
Who this is for
Audio engineers and sound designers validating system response or doing speaker/subwoofer checks.
Videographers and editors who want to quickly test their mix playback devices.
Musicians or hobbyists curious about what their gear can really reproduce.
Anyone wanting a simple tool to monitor hearing sensitivity across frequency ranges.
Quick Start
Set your speaker or headphone volume to a modest level.
Choose your test range/control (Low/Mid/High) and pick a frequency.
Listen for clarity, distortion or drop-off at various frequencies.
Adjust your system (EQ, placement, gear) accordingly based on what you hear.
Safety & Good Practice
Avoid very high volumes when testing, especially at extremes (sub-bass or ultrasonic).
Be aware: mobile or laptop speakers may not reproduce some frequencies cleanly — use proper speakers or headphones when possible.
The tool is provided “as is”; you accept responsibility for any equipment/hearing risks
Development & Creative Tools
A growing suite of browser-based tools built by Scott Manley for creators, editors, musicians, and anyone who loves fast, efficient workflows. Each tool is lightweight, private, and designed to run directly in your browser—no downloads, no installs, no tracking.