AI dubbing, text-to-speech, translation and voice cloning across 140+ languages, with a studio app and developer API.

SFX Engine
AI sound effect generator that turns a text prompt into royalty-free WAV sounds, with music, voiceover and API access.
What is SFX Engine?
SFX Engine is an AI sound effect generator: you describe a sound in plain words, such as boots on gravel or a power-up chime, and it returns up to four takes in roughly 5 to 15 seconds, each up to 47 seconds long. You choose the take that fits and download it as a royalty-free WAV for games, film, podcasts, ads and apps. The same credit balance also pays for background music tracks, DJ transitions, stem splitting and voiceover, and a REST API lets developers generate sounds from their own code. A public library of sounds can be browsed and downloaded free. Pricing is credit based: Starter costs $10 monthly and includes 500 credits, Creator costs $25 and includes 4,000, and Pro costs $90 and includes 15,000, with yearly billing taking 20% off. New accounts can try about five sounds free without a card, but downloads and commercial use need a paid plan.
Use cases
- Generate game sound effects
- Create UI and notification sounds
- Add foley and ambience to video
- Make podcast intros and transitions
- Produce background music tracks
- Split songs into stems
- Generate sounds through an API
Who it's for
Why use SFX Engine
- Prompts produce sounds made for your scene rather than whatever a stock library holds.
- Four takes per prompt let you compare options side by side before downloading.
- Every plan includes royalty-free commercial use, so there is no per-sound licensing step.
- One credit balance covers effects, music, transitions, stems and voiceover.
- API access is included on every plan for apps that need sounds on demand.
SFX Engine features
- Text-to-sound-effect generation up to 47 seconds
- Up to four takes per prompt
- Royalty-free WAV downloads
- Background music generator
- DJ transition generation
- Stem splitting for songs
- Voiceover at 1 credit per 25 characters
- Public library of free sounds
- REST API for generating sounds from code
How to get started with SFX Engine
- Describe the sound, adding material, distance, mood or length.
- Generate up to four takes and listen to them side by side.
- Pick the one that fits and download the WAV file.
- Drop it into your edit, game, app or DAW, or call the API to automate the process.
SFX Engine limitations
- No ongoing free plan; the free trial gives 15 credits
- Downloads and commercial use of generated sounds need a paid plan
- Unused credits do not roll over; the balance is topped up at renewal
- Not built for full songs, melodies or vocals as sound effects
SFX Engine pricing
SFX Engine has no free plan. Plans start at $10 per month, according to the official pricing page on .
SFX Engine plans
Starter
$10/month
$8/month billed yearly
- 500 credits per month
- About 166 sound effects
- Royalty-free commercial use
- API access
Creator
$25/month
$20/month billed yearly
- 4,000 credits per month
- About 1,333 sound effects
- Music, voiceover and stem splitting
- Priority support
Pro
$90/month
$72/month billed yearly
- 15,000 credits per month
- About 5,000 sound effects
- Full API access
- Priority feature requests
Plans as listed on the official pricing page on . Prices can change and may vary by country or exclude tax. Check the official pricing page.
SFX Engine alternatives
The main SFX Engine alternatives listed on Debuly are ElevenLabs, Loudly, SOUNDRAW, Beatoven.ai, AI Song Maker and ecrett music. The table compares pricing and platforms; order is A–Z.
| Tool | Pricing | Starting price | Platforms |
|---|---|---|---|
| SFX Engine | Paid | $10/mo | Web, API |
| AI Song Maker | Freemium | $10.49/mo | Web |
| Beatoven.ai | Paid | — | Web |
| ecrett music | Freemium | — | Web |
| ElevenLabs | Freemium | $6/mo | Web, API |
| Loudly | Pricing unknown | — | Web, API |
| SOUNDRAW | Freemium | $11.04/mo | Web, iOS, macOS, API |

AI Song Maker
Web AI music generator that turns text or lyrics into royalty-free songs, with covers, vocal removal and a free daily credit allowance.

Beatoven.ai
AI music generator for royalty-free background tracks and text-to-sound-effects, with MP3 or WAV downloads and a monetization license.

ecrett music
AI music generator for royalty-free background tracks, built from a scene, mood and genre with editable instruments and sections.

ElevenLabs
AI audio platform for text to speech, voice cloning, dubbing, transcription, music and conversational voice agents, via app or API.
FreemiumVisit ElevenLabs (official site)
Loudly
AI music platform with a music generator, text-to-music, remixer, stem splitter, distribution to streaming services and a developer API.

SOUNDRAW
AI music generator for royalty-free background music and beats, with genre blending, a track mixer and WAV or stem downloads.
FreemiumVisit SOUNDRAW (official site)
SFX Engine FAQ
How much does SFX Engine cost?
Plans are credit based. Starter is $10 per month with 500 credits, Creator is $25 with 4,000 and Pro is $90 with 15,000. Yearly billing takes 20% off, which comes to roughly $8, $20 and $72 monthly.
Is there a free plan for SFX Engine?
There is no ongoing free plan, but new accounts get 15 credits, roughly five sounds, with no card needed. You can generate and preview in the app, while saving files and commercial use require a paid plan. The public library is free to browse and download.
How many sound effects can I make per month?
Each sound effect uses 3 credits, so Starter yields roughly 166 sounds per month, Creator about 1,333 and Pro 5,000. Each take is counted as one sound.
Can I use the sounds commercially?
Yes. Sounds made on any paid plan are royalty-free for games, videos, ads, podcasts and apps without licensing fees.
Does SFX Engine have an API?
Yes. API access is included on every plan; you create an API key and use the REST API to generate sounds and fetch your library.
What are alternatives to SFX Engine?
Alternatives for AI or library sound effects include ElevenLabs sound effects, Epidemic Sound, Freesound and Soundly.
Sources & verification
Facts on this page come from the official sources below, each with the date we read it. Written by Debuly; the vendor did not review this page.
| Source | Type | Accessed |
|---|---|---|
| sfxengine.com/ | official | |
| sfxengine.com/pricing | pricing | |
| sfxengine.com/feature/ai-sound-generator | official | |
| sfxengine.com/solutions/app-developers | official | |
| sfxengine.com/feature/background-music | official |
Image credits
- Logo: from sfxengine.com · fetched · Vendor trademark, used only to identify the product; removed on request
- Cover: none collected yet, so a generated tile is shown.
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