Secret sound effects

Free CC0 secret sound effects for games, apps, videos, and podcasts. 6 sounds.

Most downloaded secret sounds

A secret agent-inspired loop with dark, eerie textures, suitable for suspense or espionage themes.·agent, creepy
0:27
A ukulele background loop with a mysterious and captivating atmosphere.·alien, atmosphere
0:45
An ambient soundscape that evokes mystery, perfect for cinematic projects.·ambient, chill
1:02
An atmospheric soundscape, perfect for horror or fantasy-themed projects.·ambient, atmosphere
1:01
An atmospheric soundscape that evokes mystery, perfect for cinematic scenes.·ambient, atmosphere
0:32
A haunting soundscape that evokes a mysterious stormy atmosphere.·ambient, atmosphere
1:02

Lots of Sounds API

Get secret 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=secret" \
  --data-urlencode "limit=10"

Questions

What are secret sounds used for?
Secret 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.

Get access to royalty-free sounds today

12,000+ CC0 sounds. Browse free, or add them to your app with one API key.

No credit card required. API from $15/mo. Pricing · API docs