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I'm Instafluff (Raphael Mun)

Instafluff

I make useful things. And some very silly ones.

I'm Raphael. I build apps, games, tools, and whatever else I get curious about. This is my corner of the internet for sharing the projects and the thoughts behind them.

Fluffington, the friendly Instafluff mascot
Photo of Raphael Mun, also known as Instafluff

Hi, I'm Raphael

Building is the thing I keep coming back to.

By day I'm a principal engineer at Microsoft, here in Prague. The rest of the time I'm making games, writing, cooking out of a cookbook I somehow ended up publishing, and every so often flying a small plane. Sometimes I build something because it solves a real problem. Sometimes because it sounds fun. The ones I like best are both.

More about me →

Writing

The thoughts behind the things.

Read all articles →

I want this place to be more than a shelf of apps. I'm writing about what I build, what I learn, and whatever else is on my mind.

Use something

Easier to show you than explain it.

HideFace finds faces on your own computer and covers the people you choose before you share a photo or video. Drag the slider and watch it happen.

Try HideFace ↗
The original group photo before face censoring
The same group photo after HideFace covered each face with an emoji
BeforeAfter
Real HideFace output using a Pexels sample. HideFace documents its on-device media processing and sample credits.

Comfy Pass

More time to build. More to share.

I love making things. Supporting and running a gazillion separate projects leaves less time for that. Comfy Pass is one subscription for five named apps, with room for me to keep improving them and announce new additions when they're ready. Subscriptions aren't open yet.

See the five apps →

A few things I made

Useful, playful, and a little all over the place.

See all projects →
Real community artwork after Media Optimizer compressed it
791.1 KB→ 109.1 KB86% smaller
Applive

Media Optimizer

Compress images and animated GIFs in your browser, compare the result, and download smaller files.

webmediaperformance
Free tier · Pass access planned · Verified Nov 11, 2026Optimize an image ↗
A pixel-art Fluffington character
Experimentlive

Pixel Art Gallery

Pups, kittens, emotes, effects, community requests, and animated chaos made on stream.

pixel-artcommunitycreative
Free · Verified Nov 11, 2026Open the gallery →
Thumbnail for How the Internet Works by Instafluff
Videomaintained

How the Internet Works

A quick walk through what actually happens after you type a URL into a browser.

webengineeringexplainer
Free · Published Jan 1, 2021Watch on YouTube ↗
How the Internet Works video thumbnail
Watch + Learn

How the Internet Works

A short explanation from the stream archive. Fragile pipes, browser requests, and all.

Watch on YouTube ↗
A crocheted Fluffington tucked inside a crocheted green mug
Crocheted by OrchidBarbie
Illustration of Raphael grinning next to Fluffington, both thinking about birthday cake
Drawn by Maaya
Illustration of Raphael in a party hat holding a controller over a birthday cake
Drawn by MSGamer
A lovebird perched on a hand in front of a monitor showing the Instafluff stream
Hanna watching the stream, sent by Mon

The Comfy Corner keeps going on Discord

Come hang out with the people behind the pixels.

People here have drawn me, crocheted Fluffington, and sent birthday art for years. I share updates in the Discord, talk through weird ideas, and stay in touch with the folks who helped shape a ridiculous number of these projects.

Join the Discord ↗
PixelPlush Parachute Drop gameplay with characters falling toward a target

Made with Maaya

PixelPlush

PixelPlush is the game studio I build with Maaya. It has its own games, community, characters, and wonderfully chaotic stream overlays.

Visit PixelPlush ↗

Free Instafluff account

Keep your comfy things together.

See your membership, billing, and connected apps in one place. Each app you use has its own connection step. Everything public here stays open without an account.

Create your free account →