Leelo

Free tool · Sound effects

Free AI sound effect generator.

Describe the sound you need and get it in seconds: footsteps on gravel, rain on a tin roof, a crowd at a match. About 10 short effects free, downloaded as MP3 or WAV.

  • Free: about 10 short effects
  • No card, no time limit
  • A free account is all it takes: no card, and the tool opens with this already in place.
0/300

Free account · no card · 1,000 credits to start

01How it works

Three steps, start to finish.

  1. Step 1

    Describe it

    What it is, where it is and how it moves. Specific beats general.

  2. Step 2

    Generate

    Choose a length or let it guess, make it loop, and get a few versions to choose from.

  3. Step 3

    Use it

    Download it, or drop it straight onto a project's sound lane in the Studio.

03Details

What the free plan covers.

Free to start
About 10 effects of a few seconds each.
Length
Half a second to 30 seconds, or let it decide.
Loops
Ambience that loops without a seam, for rooms, weather and crowds.
Download
MP3 or WAV, or straight into a Studio project.
Sound effects · 0:21

04Questions

Before you start.

Yes. A sound costs 20 credits a second with a 100-credit minimum, so a free account's 1,000 credits make about 10 short effects.

Sounds made on a paid plan can be used commercially, in videos, games, ads and apps. The free plan is for trying it and for personal projects.

Say what makes the sound, what it's on or in, and how it moves: “footsteps on wet gravel, slow, getting closer” beats “footsteps”.

Every sound is generated fresh on real servers, and the ones you make are kept in your account. The account is free.

Generating a sound effect from a description is fast, but the description is everything. This guide covers how to write prompts that work, how long to make a sound, and how to use loops for ambience.

Describe the source, the space and the movement

The best descriptions say what makes the sound, what it's on or in, and how it changes. “Footsteps” gets you generic footsteps; “slow footsteps on wet gravel, getting closer” gets you a scene.

  • Source: a wooden door, a crowd, a sports car, rain.
  • Space: in a cathedral, on a tin roof, down a phone line, outdoors.
  • Movement: getting closer, passing left to right, building, fading out.

Length and loops

A one-shot (a door, a hit, a whoosh) is usually under three seconds. Ambience (rain, a café, a forest) works better as a loop: generate it as one and it repeats without a seam, so a 10-second loop can sit under a 10-minute scene.

What the free plan makes

Sounds cost 20 credits a second with a 100-credit minimum, so the free plan's 1,000 credits make about 10 short effects. Each generation can give you a few versions to choose from. Sounds you make are kept in your account and can go straight onto a project's sound lane in the Studio.

Using the sounds

Sounds made on a paid plan can be used commercially in videos, games, podcasts and apps. For a whole production of voices and sound, see how Leelo is used for games and animation and podcasts.

Try it on your own work.

1,000 free credits to try everything. No card needed, and nothing to install.

Start free: 1,000 credits