Systemify Studio

Offline-first HTML planners you actually own

We make planners, trackers and children’s activity packs as single HTML files. One file, no account, no subscription, no server. You buy it once on our Etsy shop, download it, and it works offline on a laptop, a phone or a tablet. Your data stays on your own device.

Why this website exists

iPhones and iPads cannot open a downloaded .html file properly, so every purchase also comes with an online copy hosted here. Each product has its own address, and the access code printed on your order opens it. There is no account, nothing to sign up for, and we never ask for personal or payment details — the code is a product key, and it only opens the file you paid for.

Already bought something?

Open the link on your order and enter the access code that came with it. You only need to do that once on each device.

What we sell

Every one of these is a finished product in our shop. Each one also has an online copy at the address shown, which opens with the code from your order.

Getting in touch

Message us through our Etsy shop, or reply to your order confirmation. Lost your code? Ask and we will resend it.