Generate your own sounds in bulk on Pro, each with a license certificate
473 free sound effects for indie games
Free MP3 & WAV for commercial use. No account or credit needed.
Can’t find it? Generate your own
Describe the sound you need and Sonilo’s AI makes it in seconds. Start from one of these:
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Muffled Underwater Explosion with Churning Bubbles5.0s10.0underwater, explosion, muffled
Using sound effects in an indie game
Vary the repeats
A footstep or hit that plays hundreds of times gets tiring. Pick two or three similar sounds and randomise between them, or shift the pitch by a few percent on each play.
Trim the silence
Cut any silence at the start of a one-shot. Even 50 ms of delay makes a jump or a shot feel unresponsive.
Import WAV, ship compressed
Work from the WAV so you can edit and layer without loss, then let your engine compress to Ogg or MP3 in the build.
Match the style
An 8-bit coin in a realistic shooter sounds like a bug. Keep UI and reward sounds in the same family as the rest of the game.
Sound Effects for Indie Games: questions
Can I use these sounds in a commercial game?
Yes. The sounds are free for personal and commercial use, paid games on Steam, itch.io and mobile stores included, with no credit needed in the game or its store page.
Can I edit or layer the sounds?
Yes. Trim, pitch, loop or layer them into new effects for your game. What you cannot do is resell or redistribute the files themselves as a sound pack.
Do I need an account to download them?
No. Preview and download any sound as MP3 or WAV without signing in. An account is only needed to generate a new sound with AI.
License
Every sound effect in this library is free to download and use in personal and commercial projects — videos, ads (including paid ad campaigns), client work, podcasts, apps and games. No account, no credit, no royalties and no revenue cap. Sonilo does not register library sound effects with YouTube Content ID. A free download doesn’t come with a license certificate; on Pro and above you can get one for any sound effect here. Use the files inside your own projects, including templates and other products you sell, where the audio is part of a larger work. You may not sell, share or give away the files on their own, bundle them into sound, sample or music packs, or upload them to other stock or library sites.
Believe something here should not be listed? Contact legal@sonilo.com and we will remove it.
Ready for your next edit
Find a transition, a precise impact or a background atmosphere. Preview sounds before downloading, then choose MP3 for a compact file or WAV for your editing workflow.
Made with Sonilo
This collection brings together 3,215 generated sound effects, organized by category and duration. Latest catalog addition: . Search by source, action or texture to narrow your choices.
For video, games and podcasts
Use short sounds for cuts, interface feedback and game actions. Layer longer textures under a scene or spoken segment, and adjust their level in your editor. Check the library license for the files you download.
Need something more specific?
Describe the material, action, setting and timing you want. Your search can become the starting prompt for a custom sound. Try AI sound effects with free account credits.
Working with a video?
Explore Sonilo’s text and video sound effects workflows when your scene needs more than a library clip. Explore sound effects generation.
Generating from an agent or your own code?
Connect Claude, Cursor or ChatGPT to your account through the Sonilo MCP server and ask for a sound effect in the conversation, or drive the same models from a terminal with the CLI. Prefer code? The developer API exposes them as REST endpoints, metered in the credits your plan already includes.
Sound effects FAQ
Can I use these downloads in commercial projects?
Yes. Every file is free to download and use in personal and commercial projects — monetized videos, ads (including paid ad campaigns), client work, apps, websites and games — under the library license on this page, with no credit needed. Sonilo does not register library sound effects with YouTube Content ID. A free download doesn’t include a license certificate; on Pro and above you can get one for any file here. Audio you generate in your account follows your plan’s terms instead.
Do I need an account to preview or download a sound?
You can listen and download MP3 or WAV files directly from this library without signing in. Creating new audio with the AI generator requires a Sonilo account.
What is the difference between MP3 and WAV?
MP3 is a compressed file that is convenient for quick previews and smaller projects. WAV is uncompressed and useful when you will edit, layer or process the sound. Both versions of a library sound use the same library license.
What if I cannot find the sound I need?
Describe the sound in the search box. If there are no matches, choose the AI generation option to bring that description into Sonilo’s sound effects generator. New accounts receive free credits; generation uses credits, and available exports and usage rights depend on your plan.
How is this different from a traditional sound library?
You can start with a ready-to-download sound or use your description to create a new one in the same product. Sonilo also offers video-to-sound-effects workflows, so you can move from finding a sound to making audio for a particular scene.
Can I share or embed a sound?
Each sound has a permanent detail-page link. Use Share to copy that link, or Embed to copy an HTML audio player with a link back to the sound. Your website editor must allow HTML audio; pasting a URL alone does not automatically embed it.
Can I make sound effects for an uploaded video or through an API?
Sonilo supports video-driven sound effects as well as text descriptions. Open the sound effects product page for the available workflows, or use the developer documentation for API integration. Account generation and API usage follow their own credit and licensing terms.
Custom generation licensing questions · Plans and free credits