Alarm Sound Generator — 33 Presets & Custom Tones

A free online alarm sound creator for making custom alarm tones, notification beeps, sirens, and alert sounds. Choose waveform type, frequency, duration, and pattern — download the result instantly.

How to Create an Alarm Sound

Choose a preset from 7 categories or switch to the Custom tab

Click Play to preview the sound — adjust volume as needed

Tweak settings: frequency, pattern, waveform, or advanced controls

Select duration and format, then click Download to save the file

Generate alarm clock tones, notifications, sirens, and alert sounds

Process

Frequency Hz

Waveform

Beep duration 0.30s

Pause duration 0.20s

Beeps per group

Group pause 1.0s

Second oscillator

Sweep

LFO rate 0Hz

Fade in 0s

Fade out 0s

Volume 70%

Export

Features

33 presets across 7 categories — alarms, notifications, sirens, buzzers, and more Custom synthesizer with waveform, pattern, sweep, and LFO controls Real-time oscilloscope visualization of the generated sound Multiple download options including iPhone ringtone format

Why Use Timbrica's Alarm Sound Generator

Most alarm generators offer only a handful of basic beeps or require registration. Timbrica gives you 33 distinct alarm presets — from gentle wake-up chimes to emergency sirens — plus a full custom synthesizer with pattern control, sweep, and LFO. Export in 8 formats including M4R for iPhone. Runs in your browser via WebAssembly: no watermarks, no limits.

Frequently Asked Questions

Can I use the generated sounds as phone alarms or ringtones?

Yes. Export as M4R for iPhone or MP3 for Android. Set the file as your alarm or ringtone in your phone's settings.

How many alarm presets are available?

33 presets across 7 categories: Alarm Clock, Notification, Alert, Siren, Buzzer, Musical, and Retro. Each produces a unique sound.

Can I customize the sound?

Yes. Switch to the Custom tab to control frequency, waveform, beep pattern, sweep, LFO modulation, fade, and even add a second oscillator.

What formats can I download?

WAV, MP3, OGG, FLAC, M4A, AAC, OPUS, and M4R (iPhone ringtone). Lossy formats support bitrate selection from 128 to 320 kbps.

Is there a maximum duration?

You can export up to 5 minutes. M4R (iPhone ringtone) is limited to 40 seconds by Apple's format requirement.

💡 Want us to improve this tool just for you?

We can — and it's free! Just send us a quick message with your idea. If you'd like to discuss it in detail, leave your email and we'll get back to you. You can stay anonymous.

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Published 01 Mar 2026 Updated 21 May 2026