AI sound effects generator for video

Video to SFX: generate sound effects from your video

Upload an MP4 or MOV and Sonilo turns the video into sound effects for the action you can see: footsteps, impacts, whooshes, UI cues and ambience, synced to the cut.

MP4, MOV, M4V · Match video length or selected section · Sonilo v1.1 video-to-SFX

Commercial use included on Pro and PremiumCompare plans

  • Trained only on licensed audio catalogs
  • Commercial use included on Pro and Premium
  • License certificate anyone can verify

Hear the difference

The same clip, with and without sound effects

Same clip. Switch to Silent to hear what Sonilo added.

How it works

What you bring and what you get

  1. 01

    Upload the clip

    You bring
    A video as an MP4, MOV or M4V file.
    You get
    The clip used as the timing reference for every sound.

  2. 02

    Describe the sounds if you like

    You bring
    Optional notes such as footsteps, whooshes, impacts or ambience.
    You get
    New sound effects generated for what happens on screen.

  3. 03

    Review against the picture

    You bring
    A pass through the video with the sound on.
    You get
    Sound effects that land on the visible action and the cuts.

Commercial licensing

Licensed at the source. Cleared for commercial use.

Sonilo generates new sound effects against your video instead of pulling recordings from a stock library. The model behind it is trained exclusively on licensed catalogs, on every plan, and a paid plan carries the rights to publish what it makes.

Read the licensing termsCompare plans

  • Licensed training data

    The same model runs on every plan, trained only on licensed audio catalogs. No scraped recordings and no gray areas.

  • Commercial rights from Pro

    Ads, branded content, client deliverables, monetized channels and indie games. Premium adds film, TV, broadcast and studio games. Paid plans need no attribution.

  • A license certificate you can hand over

    Every file generated on Pro or Premium can carry a license certificate with a verification code, so a client or platform can check the rights themselves.

Free and Creator are for personal projects only.

Examples

Playable Sonilo results

Product UI sound pass

Prompt: Soft swipes, clean clicks, reveal shimmer, and a short confirmation hit.

A playable product clip reviewed for sound-design timing.

Gameplay impact layer

Prompt: Arcade jumps, pickups, whooshes, button taps, and rounded impact accents.

A playable game clip with action cues judged in context.

Trailer transition accents

Prompt: Low risers, subtle hits, cloth movement, and environmental transition cues.

A cinematic clip where SFX timing can be checked against picture.

Use cases

Built for this workflow

Short-form videos that need footsteps, hits, cloth, and environmental Foley.
Product and app demos that need UI clicks, swipes, notifications, and transitions.
Game trailers and gameplay clips that need impacts and action sweeteners.
Agency post-production where SFX must stay synchronized to the final cut.
Automated video tools that need sound effects without hand-placing every cue.

FAQ

AI sound effects generator for video

How does video to SFX work?+

Upload a video and add an optional prompt. Sonilo uses the clip as timing context and generates AI sound effects for what happens on screen, such as Foley, ambience, impacts, and transitions, so you can review each one against the picture.

Is this a sound effects generator or a sound effects library?+

A generator: the effects are new audio made for your clip. If you want ready-made files instead, the Sonilo sound effects library is free to download for personal and commercial projects, with no credit needed.

Is this for sound effects or background music?+

This page is for video sound effects. Use video-to-music when the output should be a soundtrack bed.

What kinds of SFX can I request?+

Use prompts for ambience, movement, UI cues, Foley, whooshes, impacts, product sounds, and scene transitions.

Can I use the SFX in commercial 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. The model is trained only on licensed catalogs, and each file can carry a license certificate with a verification code. Free and Creator are for personal projects only.

Add sound design to the actual cut.

Start with the video so sound effects land on visible motion instead of floating over the edit.

Commercial use included on Pro and PremiumCompare plans