85 sounds built into your deck, plus your own clips, frames and sounds — each on a key you press live.
Your deck
Playing itself — press any key to take over.
Real files on real keys — a transparent WEBM, two frames, a still and four sounds, played by the same overlay renderer OBS gets. Sound is off until you turn it on.
Airhorns, drumrolls, fails and a Voice Pack of Kloot's own takes are already in your deck: find the one for the moment, put it on a key, press it. Then bring your own — the stinger your designer cut, the frame you commissioned, the sound you bought. It all rides the browser source you already added.
Search by the moment, pin a sound to a key, set its volume, then sounds on any key and Sound Flows on Pro. Plus the OBS checkbox your viewers need.
Six of the 85. Here you hear just the sound; on Free, your stream hears a short Kloot sting after it.
Free fires 68 built-in sounds and 2 of your own files as timed pops. Pro ($9/mo) plays all 85 sounds clean, holds a clip or frame on screen, and raises the limit to 200.
85 sounds, nothing to upload. Free fires 68 of them on stream, each with a short Kloot sting; Pro ($9/mo) fires all 85 clean, including the 17 Pro sounds Kloot recorded itself, the Voice Pack among them.
Search by moment — “fail”, “win”, “reveal” — or pick a category. Star the ones you use, and your last three are one tap away. Trending shows what streamers press.
Repeat a sound ×2 to ×5 from one press. Put up to 4 sounds on any other key, emoji effects included, and give your counter a sound for a bump, a count down, a milestone, a reset or a streak.
Save up to 5 sounds as one key, played in sequence or layered — up to 20 flows. Three starters to begin from: Winner reveal, Fail and Hype train.
Upload the alert your designer made, the webcam frame you paid for, or your own MP3, and put it on a key. Library sounds don’t count toward your 2 Free media items (200 on Pro).
Alpha-channel WEBM composites cleanly over your gameplay — the subject cut out, the scene visible through it. No black box, no matte, no chroma key to tune.
A stinger plays once and clears itself — that is Fire, and it is on every plan including Free. Holding a webcam frame or a music bed on screen until you press the key again, looping the whole time, is Pro ($9/mo).
Media rides the single Kloot overlay URL already in your scene. It changes what is inside that source — it does not add one, and it does not remove the sources your other software needs.
One browser source powers Media and all 12 other tools.
Paste your single Kloot overlay URL into a Browser source in OBS, Streamlabs, or anything that supports browser sources. If it is already in your scene from another tool, Media is already wired in.
Drag in PNG, WEBM, MP4, GIF or MP3 — several at once. Kloot probes each one for duration, size and transparency before it uploads, so a file that will not work says so immediately instead of failing halfway.
Set the mode, position and size, then pin it to your deck. The key wears the clip’s own artwork. Press it from your browser or your phone — nothing fires on its own.
Fire it from
Full walkthrough
How to add your own alert video to your stream
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How to add a transparent WEBM to OBS
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How to add your own webcam frame to your stream
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How to add your own sound effects to OBS
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Add sound effects to your live stream, one key per sound
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How to loop background music in OBS
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How to use an overlay pack you already bought
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How to convert a MOV to a transparent WEBM
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How to build a stream soundboard without buying hardware
Every sound fires on stream through your one browser source. Pro plays them clean and lets one key do more.
85 built-in sounds, each on a deck key. Search by moment and star your favourites.
Set how loud each sound plays, so it sits under your mic.
One press, the sound several times in a row.
Up to 4 sounds riding on any key, emoji effects included, and sounds on counter bumps, milestones and resets.
Up to 5 sounds as one key, in sequence or layered. Up to 20 flows.
Upload your own and put each on a key. Library sounds do not count toward these.
Short, focused how-tos for the small things that make a big difference.
Yes. Free fires 68 built-in sounds on stream, each ending with a short Kloot sting, plus your own uploads. Pro ($9/mo) plays all 85 clean. Either way, tick “Control audio via OBS” on the Kloot browser source, or the sound plays to you and not to your stream.
Yes — through the one Kloot browser source you already added, with nothing new to install. Open that source’s properties and tick “Control audio via OBS”. Without it, OBS sends the sound to your desktop: you hear it, your viewers do not.
Images (PNG including APNG, JPEG, WEBP, GIF, SVG), video (WEBM and MP4), and audio (MP3, OGG, WAV). QuickTime .MOV is accepted too and converted to WEBM for you — that conversion is a Pro feature.
Yes, with an alpha-channel WEBM (VP8 or VP9). The subject renders cut out with your scene visible through it. A plain MP4 has no alpha channel to preserve, so it will show as a rectangle — that is a property of the format, not of Kloot.
2 of your own items, clips up to 30 seconds, and 25 MB per file — and on Free a clip plays once and clears itself rather than staying on screen. Pro raises that to 200 items and 5-minute clips, and can hold a clip or frame on screen until you switch it off. Storage is a flat 500 MB on every plan, and the built-in sounds don’t count toward any of it.
No. It runs through the same single Kloot overlay URL as every other tool, so if your overlay is already in your scene there is nothing new to add. It does not reduce your source count either — it changes what is inside the source you already have.
No. Kloot has no chat integration and no event triggers on any platform. Every clip, frame and sound is fired by you pressing a key on your deck or your phone.
Free: 68 built-in sounds and 2 of your own files, fired as timed pops, with a Kloot badge. Pro ($9/mo): all 85 sounds clean, repeats, sounds on other keys and counters, Sound Flows, 200 items, .MOV conversion and holding clips on screen.
Works alongside everything you already use
Sign in, paste one overlay URL, and fire it on stream. Free to start — a Kloot badge until you upgrade.
Free forever · Pro $9/month or $79/year · Event Pass $5 for 48 hours · Prices + applicable taxes