How to Automatically Print Shipping Labels for Whatnot Wins

If you sell on Whatnot, you know the drill: win an auction, pause your show, open a browser tab, type in the buyer's name and address, print the label, close the tab, resume. Repeat 30, 50, 80 times per show. It kills your flow, slows down your energy, and adds up to 30+ minutes of wasted time every single show.

The problem with manual Whatnot label printing

Whatnot doesn't have a built-in auto-print feature. When you win an auction, the platform logs the buyer and item — but actually getting a shipping label printed requires you to manually pull the order, generate the label, and send it to your printer.

For sellers doing 10–20 wins a show, this is annoying. For sellers doing 50–200 wins, it's a serious drag on performance. Every pause you take loses momentum with your audience.

How Printly auto-prints your Whatnot labels

Printly is a desktop app for Mac and Windows that runs Whatnot inside it. Instead of opening Whatnot in your browser, you open it inside Printly. The app watches your live session in real time using WebSocket detection — the same technology Whatnot uses to update your feed.

The moment you win an auction, Printly captures the buyer name, item, and price and sends the label directly to your thermal printer. The whole thing takes under one second. You never touch your keyboard.

How it works

Install Printly on Mac or Windows

Download the app and sign in with your email. No password needed — just a 6-digit code.

Select your thermal printer

Pick your Dymo, Rollo, Zebra, or MUNBYN printer from Settings. Choose your label size.

Open Whatnot inside Printly

Whatnot loads right inside the app. Log in to Whatnot normally — Printly never sees your password.

Go live. Every win prints instantly.

Start your show. The moment you win, your label prints. No clicking, no typing, no pausing.

What printers work with Printly?

Printly works with any thermal label printer your computer can see. That includes:

Dymo LabelWriter 4XL, 450, 550
Rollo Wireless & USB
Zebra ZD410, ZD421, ZD620
MUNBYN thermal printers
Any USB or wireless thermal printer

What label sizes are supported?

Printly supports 4×6 (the standard shipping label), 2×3, 1×3, 2×1, thermal 58mm, and more. You can switch label sizes between shows in seconds from the Settings tab. Most Whatnot sellers use 4×6 for shipping and 2×3 for packing slips.

Is it safe? Does Printly access my Whatnot account?

Printly never asks for your Whatnot password. Whatnot loads inside the Printly app the same way it loads in your browser — you log in normally, and you stay logged in. Printly only reads win events from your live session, nothing else.

How much does Printly cost?

Printly is $24.99/month with a 7-day free trial — no credit card required to start. You get unlimited labels, all label sizes, Mac and Windows support, live win feed, and priority support. Cancel anytime.

Stop typing labels. Start selling.

7-day free trial · No credit card · Mac & Windows

Download Printly free