MAC TOOLS + BROWSER UTILITIES · ALL PRIVATE · ALL FREE

Your datanever leaveshome.

Explore the collection

A growing collection of Mac tools and browser utilities built on one rule: your data stays on your device.

crafted by CHUNK-jp — independent developer

CHUNK-jp Craft

Privacy-first tools for developers and power users.

CHUNK-jp Wonder

Playful, imaginative tools for a broader audience. Same privacy values, a warmer feeling.

Browser Utilities

All browser utilities run entirely client-side — no server, no tracking, no data sent anywhere.

Software should work for you. Not harvest from you.

Whether it's a full Mac app or a lightweight browser tool — every piece of software here runs locally, stores nothing remotely, and requires no account.

The reason for not relying on the cloud is simple. Every time I searched for a file, analyzed health data, or read the news, I disliked the feeling that my information was being sent off to some server. So I decided to build tools where everything stays on my own machine.

Local by design

Every computation runs on your hardware. No network requests, no cloud sync, no backend.

I know the cloud is convenient. But I didn't want to accept the trade-off where your data becomes training material, gets used for ad targeting, or disappears one day when a service shuts down.

Open source

Every line of code is public. Read and verify the privacy guarantees yourself.

Tools that don't show you what they're doing make me uneasy. Trust doesn't come from a black box.

No accounts, ever

No email, no sign-up, no subscription. Download, open, use. Software the way it used to be.

Account registration tends to be the gateway to data collection. I was determined to make something you can use without handing anything over.

Who this is for

People who want to know exactly where their data goes

People tired of subscription fatigue

People who use AI tools but don't want to give up privacy

People who simply value everything running on their own Mac