What is Balloon Party?

Balloon Party is a browser tool that inflates any word into simulated foil balloons you can grab, swat and throw around a lit stage. Letters, hearts, stars and round balloons are built in 3D with real physics rather than pasted from a picture library. Type up to 40 characters, pick one of 36 color palettes, then save a PNG up to 8K on desktop, an MP4 or an animated GIF. The balloons keep drifting while you work, so the frame you capture is the one you arranged.

Is Balloon Party free?

Yes. Balloon Party is completely free, with no account, no watermark, no export limits and no feature gates. Your text and your captures stay on your device.

How do I make balloon letters with someone's name?

Open Balloon Party, type the name into the Text box in Settings, and press Inflate. The letters rise as foil balloons you can drag into place with a mouse or a finger. When the arrangement looks right, open Capture and save a still, a video or a GIF. Everything runs in the browser, so nothing is uploaded and nothing is queued.

Does Balloon Party collect my data?

No. Balloon Party runs locally in your browser using JavaScript and WebGPU. Your text and your captures never leave your device. There are no servers, no uploads and no tracking beyond basic anonymous page analytics. Settings are remembered in your own browser storage, and you can turn that off in Preferences.

Can I download balloon letters with a transparent background?

Yes. Capture has a Transparent option, so the PNG comes out with the backdrop removed and only the balloons left. Drop that file straight onto a photo, a party invitation, a title card or a print layout without cutting anything out. PNG and WebP keep the transparency; JPEG does not, because the format has no alpha channel.

What do I need to run Balloon Party?

A browser with WebGPU: Chrome or Edge 113 and up, Firefox 141 and up on Windows or 145 and up on macOS, or Safari on macOS Tahoe 26 and iOS 26. No install, no plugin and no signup. If WebGPU is missing, Balloon Party says so on screen and names the versions that work, rather than leaving a blank stage.

What is a foil balloon?

A foil balloon is a balloon made from a thin metallized plastic sheet instead of latex, which is why it holds a crisp letter shape and throws hard, mirror-like highlights. Balloon Party simulates that surface directly: metallic amount, clear coat, coat softness, wrinkle depth and fine texture are all sliders, so the same word can read as glossy party foil or soft matte plastic.

How does Balloon Party compare to MockoFUN?

MockoFUN builds balloon text from a pre-made image font, and its own documentation says the letters are images: the font type cannot be changed, and sizing past 100 percent starts losing quality. Balloon Party builds every letter as 3D geometry with physics, so it stays sharp at any size and you can push the balloons around. Exports are yours to keep: PNG, JPEG and WebP stills up to 8K on desktop, plus MP4 and GIF, with no watermark and no account.

Can I use Balloon Party on my phone?

Yes, on a phone whose browser supports WebGPU, which today means Safari on iOS 26 or a recent Chrome on Android. The stage fills the screen, Settings and Capture open as panels, and you drag balloons with a finger. For a wordmark you can print instead of animate, Brickmark on the arcade does the same job as a flat PNG.

What should I type into Balloon Party?

Anything up to 40 characters. The ones people reach for most are a name, HAPPY BIRTHDAY, CONGRATS, THANK YOU, a number for a milestone birthday, or a year like 2026. Short phrases read best, because fewer letters means bigger balloons on screen. Press Enter for a second line and the words stack instead of running off the edge.

How do I make a Happy Birthday balloon banner?

Type HAPPY BIRTHDAY into the Text box and press Inflate. Press Enter between the two words to stack them on two lines, which fills a square or portrait frame better than one long row. Pick a palette, drag the letters into the arrangement you want, then open Capture, choose Transparent, and save a PNG you can drop onto a photo or a printed card.

Can I make an animated balloon GIF for a message?

Yes. Open Capture, pick the GIF tab, choose a square or portrait shape, and record. The balloons keep drifting and colliding while it records, so the loop has real motion rather than a fake shimmer. GIF records at 1080p and MP4 goes higher, so choose MP4 when the app you are sending to accepts video.

How do I get balloon letters big enough to print?

Choose Still in Capture, set the size to 4K, or 8K on desktop, and save a PNG. At 8K the image is 7680 pixels across, which prints sharply at poster size. Because every letter is 3D geometry rather than a stretched picture, the edges stay clean at any size. Turn on Transparent if you want the balloons with no backdrop behind them.

Balloon Party: inflate any word into floating foil balloons