Sonilo

Sonilo generates music and sound effects to fit a video's pacing, mood, and scene changes. Users can upload MP4 or MOV videos, or describe the audio they want with text. Sonilo reads the visuals while leaving the original video audio available to keep, adjust, replace, or layer. It creates several variations by default, and an optional prompt can guide the style. The service also translates speech, re-voices videos, supports lip-sync re-rendering, and accepts SRT or VTT subtitles. Plugins are available for Adobe Premiere Pro, Unity, Godot, Epic Games Fab, Roblox Studio, and Defold. Its API covers video- and text-based music and sound-effects generation, audio ducking, task polling, and account usage. Sonilo is available on Android, iOS, and web, as well as through an API. The free plan provides 2,000 credits every two weeks; paid plans start at $4.99/mo (annual). Commercial-use rights apply to Pro, Premium, Enterprise, and eligible API users; Free is for personal, non-commercial use. Sonilo says uploaded videos and related data may be used for AI training and product improvement by default.

Sonilo combines video-matched audio generation with text-to-audio tools, translation, and editing integrations. Check credit requirements, commercial-use eligibility, and the default data-use policy before choosing a plan.

Sonilo may suit video creators who want generated music or sound effects, as well as teams using its editing plugins or API. Commercial projects need a plan or API access with commercial-use rights.

Sonilo is an audio-generation and video-translation service for creators who want music or sound effects shaped around a clip’s visuals, plus tools for integrating generation into editing workflows. It suits video editors and developers with recurring audio needs; its strengths are broad input options and integrations, while credit costs and data-use terms deserve close attention.

Overview

Upload an MP4 or MOV, or describe the desired music or effects in text. Sonilo works from visuals rather than the video’s existing audio, leaving dialogue and ambience available to keep, adjust, replace, or layer. It generates several variations by default and accepts an optional prompt to steer the style. That makes it useful when a soundtrack should follow scene changes without sacrificing existing audio, though video-aware generation costs substantially more credits than text-only creation.

Video-to-music and video-to-sound-effects each cost 18 credits per output second; text-to-music costs 5 and text-to-sound-effects 4. A 15-second and 200-credit minimum applies. The minimum matters for short requests, while longer clips can quickly consume a plan’s allowance. Sonilo supports videos up to 180 seconds in the general entry limits, with shorter caps on Free and longer caps on paid plans.

Key features

Beyond soundtrack generation, Sonilo translates speech, re-voices video, supports lip-sync re-rendering, and accepts SRT or VTT subtitles. Translation allowances on Pro and Premium are measured per language, making those plans more suitable for defined localization workloads than open-ended use.

The API supports video- and text-based music and sound-effects generation, audio ducking, task polling, and account-usage checks. Plugins for Adobe Premiere Pro, Unity, Godot, Epic Games Fab, Roblox Studio, and Defold give creators several ways to bring the tools into existing workflows. This breadth is a practical advantage for teams already using those editors or engines; it does not remove the need to budget credits.

Sonilo says its models use licensed music datasets, including content authorized through Shutterstock. Its privacy policy also allows uploaded videos, prompts, outputs, and related data to be used for AI training and product improvement by default, without a separate opt-out. The service prohibits uploading minors’ data, facial-recognition or biometric data, voiceprints, government IDs, health or other highly sensitive personal information, and confidential third-party business materials unless authorized in writing. That makes it a poor fit for sensitive or restricted projects.

Pricing

Sonilo is freemium, with paid plans from $4.99/mo (annual). Free costs nothing and provides 2,000 credits every two weeks, preview-quality exports, videos up to 3 minutes, 500 MB of storage, and one task. Its allowance is enough to explore the different generation modes, but personal, non-commercial use only and preview exports rule it out for many finished commercial projects. The free allowance corresponds to about seven 15-second video soundtracks, six minutes of text-to-music, or eight minutes of text-to-sound-effects.

Pro costs $11.99 a month, billed yearly as $143.88~~$240~~. It includes 40,000 credits per month, videos up to 8 minutes, 1.5 GB, 800 seconds of video translation per language, unlimited tasks, and unlimited free downloads. It suits solo creators with regular output who need commercial-use rights and longer videos; the monthly credit pool still makes frequent video-aware generation a cost to monitor. Its stated credit equivalents are 148 15-second video soundtracks, 133 minutes of text-to-music, or 166 minutes of text-to-sound-effects.

Premium costs $23.99 a month, billed yearly as $287.88~~$480~~. For 100,000 credits per month, 3 GB, videos up to 30 minutes, and 2,000 seconds of translation per language, it is the stronger individual plan for heavier workloads and longer source videos. It includes unlimited tasks and unlimited free downloads, but costs more than Pro and still uses credits. Its equivalents are 370 15-second video soundtracks, 333 minutes of text-to-music, or 416 minutes of text-to-sound-effects.

Enterprise has custom pricing and is aimed at organizations that need volume credit rates, no minimum charge, 20 seats, custom credit and upload limits, a dedicated dashboard, an account manager, and priority support.

Platforms

Sonilo is available on Android, iOS, and the web, with API access for developers. The platform range makes it usable both as a direct creator tool and as a component in software workflows.

Who it's for

Sonilo is a strong fit for video creators who need visuals-matched audio, multiple candidate generations, or translation and re-voicing in the same service. Developers can benefit from the API and editor or engine plugins. It is less suitable for occasional users who need commercial rights but cannot justify a paid plan, for projects that routinely exceed credit allowances, and for anyone handling sensitive material covered by its upload restrictions or default improvement-use policy.

Pros and cons

• Pros: Video-aware music and effects generation leaves original audio available to preserve or edit.
• Pros: Text generation, translation, re-voicing, lip-sync re-rendering, an API, and multiple editor plugins cover more than soundtrack creation alone.
• Pros: Pro and Premium include commercial-use rights, with translation quotas and video-length limits that scale up on Premium.
• Cons: Video-aware generation costs 18 credits per second, far more than text generation, and a 15-second/200-credit minimum can weigh on short requests.
• Cons: Free is non-commercial and exports only at preview quality; commercial projects require an eligible paid plan or API access.
• Cons: Uploaded content and generated material may be used for model improvement by default, and sensitive data categories are barred absent written authorization.

Alternatives

For a broader browsing starting point, see AI Sound Effect Generators.

• Async is another freemium option for users seeking an AI media workflow with a lifetime credit allowance and storage.
• Creen is worth considering for Android, iOS, or web users who want free daily generation on select models.
• HueFold is an alternative freemium service for Android and web users.
• Noiz AI is a free option for iOS and web users.
• Phaser is a free, open-source JavaScript and TypeScript framework for WebGL and Canvas rendering, rather than an audio-generation service.
• Morphic is a web-based freemium option with a limited free tier of up to 20 credits for one user.
• AudioGen is a free self-hosted API option for Linux users with a GPU that has at least 16 GB of memory.
• Autunes is a web-based freemium alternative with a lifetime free credit allowance and daily credits after it is exhausted.

Verdict

Choose Sonilo if you need video-aware music or effects alongside translation, re-voicing, and integrations for a regular creator or developer workflow. Its most compelling advantage is that breadth, with paid commercial rights and scalable individual or enterprise plans. Look elsewhere if credit-based video generation is hard to budget, or if your work cannot accept default model-improvement use of uploaded content.