Synthetic sound effects

Free CC0 synthetic sound effects for games, apps, videos, and podcasts. 63 sounds.

Most downloaded synthetic sounds

Top 30
Laser and explosion with extra deep bass rumble·alien, bass
0:04
Laser blast followed by a deep rumbling explosion·alien, bomb
0:04
A crisp sound of a switch being flicked or toggled.·high-quality, switch
0:00
A space-themed background soundscape suitable for sci-fi projects or cosmic scenes.·alien, ambiance
0:19
A deep synth chord that adds a futuristic touch to any audio project.·synth, ambience
0:09
Synthetic Space Drone for sci-fi interfaces or game FX.·alesis, ambient
0:50
A haunting electronic piece that creates a sense of dread, perfect for horror films.·brass, creepy
1:35
A synthetic heartbeat at 94 BPM with an accompanying rhythmic loop.·bass, beat
0:41
A cyberpunk-inspired sound snippet processed with voice and coil recordings, suitable for sci-fi and futuristic projects.·abstract, artificial
0:51
A short, synthetic click sound effect for buttons.·button, click
0:01
A short, synthetic click sound effect for buttons.·button, click
0:01
An eerie atmosphere filled with machinery sounds, suitable for dark environments.·amb, ambiance
0:38
Looped sound of ocean waves, suitable for ambient or sound design use.·ambient, beach
0:26
A synthesized sound resembling an alien creature, suitable for sci-fi projects.·60s, 70s
4:04
A synthetic submarine sonar ping sound with a clean, resonant tone.·submarine, synthetic
0:04
A short, synthetic click sound effect for buttons.·button, click
0:01
A short, synthetic click sound effect for buttons.·button, click
0:01
A corrupted signal interference for sci-fi interfaces or game FX.·alien, broken
0:07
An eerie soundscape of howling winds, perfect for dystopian themes in film or games.·ambient, apocalyptic
1:09
A short, synthetic click sound effect for buttons.·button, click
0:01
Happy birthday Freesound for wet scenes or liquid motion.·freesound, freesound15years
3:36
A synthesized sound effect suitable for cancel, back, or exit buttons in UI.·back, back-button
0:01
A vocoder-processed speech loop with a mechanical, synthetic character, ideal for sci-fi and electronic genres.·ambient, analog
0:05
An experimental acid loop with harmonic elements, perfect for electronic music tracks.·303, abstract
0:32
A synthetic vocal sound created using open-source speech synthesis, suitable for electronic and experimental music.·140bpm, android
0:07
Original file created using Steinberg's Padshop Pro VSTi for wet scenes or liquid motion.·science-fiction, vsti
1:03
Alien Voice for sci-fi interfaces or game FX.·alien, atmospheric
0:05
Bass Drone Pad Hz Higher for sci-fi interfaces or game FX.·alien, ambience
0:34
Wub Quarter Note Spankmyfilth for montage beds or social cuts.·1-shot, industrial
0:05
Wub Quarter Note Spankmyfilth for montage beds or social cuts.·1-shot, industrial
0:05

Lots of Sounds API

Get synthetic sounds from code

Search the full CC0 catalog from your app, game or AI agent with the REST API or the MCP server.

curl
curl -G https://api.lotsofsounds.com/api/v1/sounds \
  -H "x-api-key: $LOS_API_KEY" \
  --data-urlencode "tags=synthetic" \
  --data-urlencode "limit=10"

Questions

What are synthetic sounds used for?
Synthetic sounds are commonly used in apps, games, videos, podcasts, and interactive media projects.
Can I use these sounds commercially?
Yes. Every sound is CC0: free for personal and commercial use, with no attribution required. A credit link to lotsofsounds.com is appreciated but optional.
How do I download a sound?
Open any sound to preview it for free. Sign in to a Lots of Sounds account to download MP3 files.

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