# SFX Engine vs Sonilo

SFX Engine records 204,436 monthly visits with +0.8% month-over-month growth and Freemium pricing. Sonilo records 129,781 monthly visits with +108.8% growth and Freemium, Contact for Pricing pricing.

| Metric | [SFX Engine](https://openaitools.app/tool/sfx-engine) | [Sonilo](https://openaitools.app/tool/sonilo) |
| :--- | :--- | :--- |
| Website URL | https://sfxengine.com | https://sonilo.com |
| Categories | AI Sound Effect Generator, AI Text-to-Music, AI Audio Editing, AI Music Generator | AI Music Generator, AI Sound Effect Generator, AI Text-to-Music |
| Pricing Model | Freemium | Freemium, Contact for Pricing |
| Monthly Visits | 204,436 | 129,781 |
| MoM Growth Rate | +0.8% | +108.8% |
| Primary Market | United States | United States |
| Direct Visits | 34,257 | 33,413 |
| Review Score | 4.2 | 4.2 |
| Saved Count | 0 | 0 |
| Supported Platforms | Website | Website |

## SFX Engine

SFX Engine is a web-based AI sound effect generator aimed at game developers, video editors, filmmakers, podcasters, and audio producers. The core idea is simple: you describe a sound in plain language, and the engine synthesizes a new clip that matches. It supports ambience, foley, impacts, whooshes, UI sounds, creatures, vehicles, and sci-fi or magic effects, with clips running up to about 47 seconds. It is explicitly not intended for full songs, melodies, or vocals.

The workflow is fast and iterative. You write a specific prompt, add details like material, distance, mood, or length, then generate up to four variations side by side and pick the best one. Every sound is royalty-free for commercial use, which makes it practical for game studios, YouTube edits, trailers, ads, and podcasts. Generation typically takes only a few seconds to about fifteen seconds depending on load.

Pricing is credit-based and subscription-style. You can try a small number of sounds free without a card, and paid plans start around $10 per month for 500 credits, with each generated sound costing roughly 3 credits. Higher tiers add more credits, priority support, and full API access, and there is also a free public library of sounds you can browse and download.

**Pricing & Plans:** Freemium. You can try a few sounds free without a card, while downloading generated sounds requires a plan. Paid plans run roughly from $10 per month for 500 credits up to higher studio tiers with more credits and full API access; each generated sound costs about 3 credits, and the public library is free to browse and download.

- **Prompt-to-Sound Generation:** Type any sound you can imagine, from a car door closing in a parking garage to thunder over a dark sea, and get a fresh clip in seconds.
- **Royalty-Free Commercial License:** Every generated sound is royalty-free for commercial use in games, videos, podcasts, apps, and ads.
- **Multiple Takes per Prompt:** Generate up to four takes side by side and keep the one that fits your scene.
- **Free Public Sound Library:** A browsable, free-to-download library of ambience, foley, UI, game, and film sounds organized by category and use case.
- **API Access and Background Music:** Paid plans include full API access so you can integrate sound generation into pipelines and tools.

**Strengths:** Simple prompt-to-sound workflow with results in seconds; Royalty-free commercial licensing on every generated sound; Free public sound library plus a no-card trial; Multiple takes per prompt for faster iteration

**Limitations:** Not designed for full songs, melodies, or vocals; Downloads require a paid plan (there is a free prompt-based trial but files need a subscription); Generation quality still depends on how specific your prompt is

[Profile (Markdown)](https://openaitools.app/tool/sfx-engine.md)

## Sonilo

Sonilo approaches AI audio from the video side rather than the prompt side. Instead of starting with a text description and dropping the result onto a timeline, you upload your edited video and the system analyzes its timing, pacing, and emotional arc. It then generates a soundtrack whose length matches the video exactly, and places sound effects on the specific frames where actions happen. The output is a single finished audio track rather than a set of clips you have to cut and align yourself.

The same engine powers other workflows, including text-to-music, text-to-sound-effects, video translation with lip sync across 24 languages, audio ducking, and subtitle import so translations follow an existing .srt or .vtt file. Sonilo runs on the web and through a documented API at platform.sonilo.com, and it ships plugins for Adobe Premiere Pro, Unity, Godot, Epic Games Fab, the Roblox Asset Store, and the Defold Asset Store so creators can generate licensed audio without leaving their editor or engine.

Licensing is a central selling point. Tracks carry a commercial license from the Pro tier upward, covering ads, branded content, client deliverables, monetized channels, and indie games with no attribution; Premium adds film, TV, broadcast, and studio games. The company states its model is trained only on a licensed catalog rather than scraped material and provides a license certificate. Pricing is credit-based: one shared balance covers every model, billed by output length, with a free tier that gives 2,000 credits every two weeks but limits exports to preview quality for non-commercial use.

**Pricing & Plans:** Free tier at $0 with 2,000 credits every two weeks and preview-quality non-commercial exports. Pro is about $11.99 per month billed yearly at $143.88 and unlocks commercial licensing, 40,000 credits per month, longer uploads, and video translation. Premium is about $23.99 per month billed yearly at $287.88 and adds film, TV, and broadcast rights. Enterprise adds custom terms, volume credit rates, and dedicated support. Credits are consumed by output length: 18 per output second for video-to-music and video-to-sound-effects, 5 for text-to-music, and 4 for text-to-sound-effects.

[Profile (Markdown)](https://openaitools.app/tool/sonilo.md)

## Frequently Asked Questions

### How do SFX Engine and Sonilo compare in monthly traffic?

SFX Engine has 204,436 monthly visits, while Sonilo has 129,781. Traffic estimates describe audience size, not product quality.

### How do their growth rates compare?

SFX Engine has a month-over-month growth rate of +0.8%; Sonilo has +108.8%.

### How does pricing compare?

SFX Engine: Freemium. Freemium. You can try a few sounds free without a card, while downloading generated sounds requires a plan. Paid plans run roughly from $10 per month for 500 credits up to higher studio tiers with more credits and full API access; each generated sound costs about 3 credits, and the public library is free to browse and download. Sonilo: Freemium, Contact for Pricing. Free tier at $0 with 2,000 credits every two weeks and preview-quality non-commercial exports. Pro is about $11.99 per month billed yearly at $143.88 and unlocks commercial licensing, 40,000 credits per month, longer uploads, and video translation. Premium is about $23.99 per month billed yearly at $287.88 and adds film, TV, and broadcast rights. Enterprise adds custom terms, volume credit rates, and dedicated support. Credits are consumed by output length: 18 per output second for video-to-music and video-to-sound-effects, 5 for text-to-music, and 4 for text-to-sound-effects.

## Alternatives

| # | Tool Name | Monthly Visits | MoM Growth Rate | Pricing Model | Summary | Profile (Markdown) |
| :--- | :--- | :--- | :--- | :--- | :--- | :--- |
| 1 | [Suno](https://openaitools.app/tool/suno) | 78,046,702 | +3.4% | Freemium | Generative AI music platform and browser studio for creating full vocal songs, stems, and MIDI. | [.md](https://openaitools.app/tool/suno.md) |
| 2 | [ElevenLabs](https://openaitools.app/tool/elevenlabs-io) | 42,396,771 | +26.1% | Freemium, Paid, Contact for Pricing | AI audio platform for speech, agents, music and dubbing | [.md](https://openaitools.app/tool/elevenlabs-io.md) |
| 3 | [MusicGPT](https://openaitools.app/tool/musicgpt) | 788,044 | -30.6% | Freemium | Generate songs, beats, sound effects and voiceovers with AI | [.md](https://openaitools.app/tool/musicgpt.md) |
| 4 | [MusicHero.ai](https://openaitools.app/tool/musichero-ai-free-ai-music-generator-from-text-online) | 286,265 | +10.8% | Freemium | Describe a song in words and get two finished tracks each time | [.md](https://openaitools.app/tool/musichero-ai-free-ai-music-generator-from-text-online.md) |
| 5 | [Beatoven.ai](https://openaitools.app/tool/beatoven-ai) | 155,957 | -16.3% | Freemium | Royalty-free AI music and sound effects for every creator | [.md](https://openaitools.app/tool/beatoven-ai.md) |
| 6 | [Stable Audio](https://openaitools.app/tool/stable-audio) | 130,879 | +3.3% | Freemium | Generative audio for music, samples, and sound design | [.md](https://openaitools.app/tool/stable-audio.md) |
| 7 | [Sound Effect Generator](https://openaitools.app/tool/sound-effect-generator) | 45,265 | -8.1% | Freemium | Turn text or video into custom sound effects, then edit and export in the browser | [.md](https://openaitools.app/tool/sound-effect-generator.md) |
| 8 | [AudioX](https://openaitools.app/tool/audiox) | 39,693 | +26.7% | Freemium, Paid | All-in-one AI studio for music, audio, image, and video generation | [.md](https://openaitools.app/tool/audiox.md) |
| 9 | [MMAudio](https://openaitools.app/tool/mmaudio) | 33,997 | -34.5% | Paid | AI video-to-audio synthesis for automatic sound effects and ambience | [.md](https://openaitools.app/tool/mmaudio.md) |
| 10 | [GenSFX](https://openaitools.app/tool/gensfx) | 27,315 | -2.1% | Free | Provides a simpler interface for instant text-to-SFX downloads, but lacks advanced audio layering controls. | [.md](https://openaitools.app/tool/gensfx.md) |

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Source: https://openaitools.app/compare/sfx-engine-vs-sonilo

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