Purupuru Maker

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July 23, 2026 I Built an Image Wobble Tool After Seeing a Tiny Japanese Website Go Viral

A few days ago I came across a small Japanese website that unexpectedly exploded across social media.

The idea was incredibly simple.

Upload an image, paint the area you want to move, and the image starts wobbling like jelly.

No AI.
No complicated editor.
No timeline.
Just one fun interaction.

Watching thousands of people share animated memes made me realize something:

Sometimes the simplest web toys spread faster than the most sophisticated AI products.

So I decided to build my own version—not as a clone, but as an opportunity to create an English-first experience with a cleaner workflow.

Why build another one?

Most image animation tools today fall into two categories.

  • Professional software with a steep learning curve.

  • AI animation tools that require uploading images to remote servers.

I wanted something different.

My goals were:

  • Works instantly in the browser

  • No login

  • No installation

  • No waiting for cloud rendering

  • Keep users' images private

Everything happens locally in the browser.

Your images never leave your device.

That makes the tool feel much faster and removes privacy concerns entirely.

The biggest challenge

Making an image wobble sounds easy until you actually try.

The hard part isn't moving pixels.

It's making the movement feel soft, natural, and responsive instead of looking like a cheap distortion filter.

I experimented with different mesh resolutions, spring physics, damping parameters, and mask smoothing before finding something that looked satisfying.

Small changes in these values completely changed the "feel" of the animation.

Interesting observation

This project reminded me that people don't always want productivity software.

Sometimes they just want to create something fun in 30 seconds.

The internet has always loved lightweight creative tools:

  • face morph generators

  • meme makers

  • ASCII art

  • image filters

  • GIF creators

A simple interaction with instant feedback can be surprisingly addictive.

What I learned

Building tiny products is underrated.

Instead of spending months building a huge SaaS, you can validate an idea in days.

You also learn much faster because users immediately show you where they get confused.

For this project I focused on:

  • zero onboarding

  • instant interaction

  • browser-only processing

  • fast exports

  • mobile support

Every extra click hurts.

Every second of waiting hurts even more.

What's next?

I'm planning to keep improving it with features like:

  • more motion presets

  • better brush controls

  • higher-quality exports

  • project saving

  • easier sharing to social media

I'd also love to hear what people think.

If you've built browser-based creative tools before, I'd love to know what worked well for you.

Sometimes the smallest products end up teaching the biggest lessons.

2 Comments

  1. 1

    The observation that simple creative tools can spread faster than sophisticated products is interesting. I'm curious what would convince you people are coming back for the wobble effect itself rather than because the first share performs well enough to make them want to create another.

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Paint where you want it to wobble, then make the image jiggle!