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AI sound effect generator

Generate sound effects from text

Describe the effect, pick a duration, and open Sonilo with a text-to-SFX prompt ready to generate.

Create input

Write a short sound prompt and generate standalone effects such as Foley, impacts, UI cues, ambience, and transitions.

Tool
DurationAuto, 1s to 3m
Model versionSonilo text-to-SFX

Duration

Auto, 1s, 2s, 3s, 5s, 10s, 30s, or custom

Prompt

Object, action, material, room, intensity, and tail length

Model version

Sonilo text-to-SFX

Input format

Text prompt

How it works

What you bring and what you get

  1. 01

    Describe the sound

    You bring
    The source, material, action, space and tail, for example a heavy door in a small room.
    You get
    A clear target for the generator.

  2. 02

    Set the duration

    You bring
    Auto, or a length from 1 second to 3 minutes.
    You get
    A sound effect generated to that length.

  3. 03

    Generate and compare

    You bring
    Your prompt, run as often as you need.
    You get
    Two variations of the effect to play side by side.

Specs and limits

What the text to sound effects tool takes and gives back

Input
  • Sonilo's text to sound effects tool takes a written prompt of up to 2,000 characters.
  • Sonilo's text to sound effects tool makes sounds from half a second to 3 minutes long, or picks a length from the prompt on Auto.
Output
  • Each text to sound effects generation gives two variations of the sound.
  • Sonilo's text to sound effects tool downloads each sound as an M4A, a 48 kHz WAV for game engines and DAWs, or a 320 kbps MP3.
  • On the Free plan, Sonilo downloads up to 10 sound effects a month. Pro and Premium download with no monthly limit.
  • On Pro and Premium, Sonilo can make a sound effect that loops without a gap, at no extra cost.
Cost
  • Sonilo's text to sound effects tool costs 4 credits per second of sound, with a 200 credit minimum per generation, so any sound up to 50 seconds costs 200 credits. Both variations come for that one price.
  • The Free plan comes with 2,000 credits every 2 weeks, enough for 10 text to sound effects generations of up to 50 seconds each.
Commercial use
  • Sound effects from Sonilo's text to sound effects tool can be used commercially on Pro and Premium. Pro covers ads, branded content, client deliverables, monetized channels and indie games, and Premium adds film, TV, broadcast and studio games.
  • A sound effect downloaded on the Free plan is for personal projects only and must credit Sonilo.
Not built for
  • Sonilo's text to sound effects tool makes sound effects, not music. For music, use text to music.
  • Sonilo's text to sound effects tool does not time sounds to a video. To place sounds on a finished edit, use video to sound effects.
  • One text to sound effects clip runs 3 minutes at most.

Examples

Playable Sonilo results

Mechanical snap

Prompt: Mechanical snap, small metallic tail, close microphone.

A playable short sound-design texture.

Glass impact brief

Prompt: Glass shattering on concrete, sharp initial crack, small debris tail.

A standalone effect prompt framed for one-shot SFX generation.

Menu confirmation cue

Prompt: Soft digital confirm tone, quick rise, warm click, no long reverb.

A compact UI cue prompt for apps, games, and product videos.

Compare

Original, silent, and Sonilo output

Original video

The source clip keeps its original camera audio for reference.

Silent version

The same clip muted, so timing and visual beats are easy to judge.

Sonilo output version

A prompt-generated sound effect shown inside a finished media context.

Use cases

Built for this workflow

UI clicks, alerts, swipes, notifications, and product interaction sounds.
Foley ideas before a video cut is ready.
Game pickups, weapons, spells, movement, and menu feedback.
Transitions, whooshes, risers, impacts, and logo stingers.
Ambience beds such as rain, room tone, wind, crowds, and machinery.

FAQ

AI sound effect generator

What should I put in an AI sound effect prompt?+

Name the source, material, action, space, intensity, and tail, for example: heavy wooden door creaking open in a small room.

Can I generate short one-shot sound effects?+

Yes. Text-to-SFX supports short durations such as 1, 2, 3, and 5 seconds.

Is text-to-SFX the same as video-to-SFX?+

No. Text-to-SFX starts from a written prompt. Video-to-SFX uses the uploaded video timing as context.

Can I use generated SFX for games or videos?+

Yes, on Pro and Premium. Pro covers ads, branded content, client deliverables, monetized channels and indie games; Premium adds film, TV, broadcast and studio games. A sound effect downloaded on the Free plan is for personal projects only and must credit Sonilo.

Describe the effect and generate it.

Use a concrete prompt for object, action, surface, and room so the output has a clear target.