🟢 Free Chrome extension

Think before
you buy.

Mull connects every purchase to your financial goal — before you check out, not after. Skip and save, mull it over, or buy it anyway. Your call, always.

Add to Chrome — It's Free ▶ Watch how it works

Chrome only · Takes 10 seconds to install · Safari support coming soon

No account required Your data stays on your device We never sell your data 🧭 Safari — coming soon
🔒 No account required
📵 Nothing leaves your device
⚡ Works on 40+ shopping sites
💚 100% free, forever
Why we built Mull

Every other finance app is a rearview mirror.

Budgeting apps tell you what you already spent. Banks send summaries after the damage is done. None of them are there in the moment — when you're hovering over "Add to Cart" at 11pm.

Mull is a windshield. It steps in before you spend, connects the purchase to something you actually want, and gives you a real choice — not guilt, not a lecture. Just a moment to think.

"Most finance apps are rearview mirrors. Mull is a windshield."
— Mull product philosophy
See it in action

The whole flow, start to finish.

Watch Mull work end to end — set a goal, get caught at checkout, mull it over, and see your budget and guilt-free spend come together.

Prefer to try it yourself? Open the interactive demo →

Mull vs. Others

Built different.

Most tools find you a coupon after you've already decided to buy, or just track the damage afterward. Mull works before you spend.

Other tools

Show up after you've already spent
Require accounts and data sharing
Generic budgeting advice, disconnected from your goals
Often vague about how they actually make money
Guilt-based design that makes you feel bad

Mull

Fires the moment you click Add to Cart — before you spend
No account, nothing leaves your device
Connected to your actual budget and every goal you're working toward
Transparent about how it works — 100% user-initiated
Values-first design. Never judges. Always your call.
First, the easy part

Two steps. That's the whole setup.

Pick a goal, then tell Mull a bit more about it. That's it — Mull connects every purchase to it from then on.

⏱️ Takes about 10 seconds
1Pick your goal
✕ Close
What are you saving toward?
Mull connects every purchase to what matters most to you.
CHOOSE YOUR GOAL
✈️

Travel & Experiences

See the world on your terms

🏠

Buy a Home

Build toward your down payment

💸

Get Out of Debt

Every dollar gets you closer to zero

🚀

Build Wealth & Invest

Watch small savings grow big

Choose from 5 goal types — travel, home, debt, wealth, or your own.

2Define your goal
★ FOCUS
Change Sure? Delete
✈️
Italy
TRAVEL & EXPERIENCES
$0
🎯 Set a target to track progress →
+ Log money saved elsewhere
Start ✈️ 🏔
⚙️ Edit goal
Suggested monthly contribution
$2,000 goal · $285.71/mo suggested

Add a destination and a target date, and Mull suggests a monthly pace — you're done.

✅ Setup complete — Mull is watching now
Works on

40+ shopping & travel sites

Mull fires wherever you shop — retail, travel, sneakers, furniture, and more.

🛒 Amazon
👟 Nike
🏟 REI
✈️ Expedia
🏦️ Skyscanner
🏪 Target
🛒 Walmart
👟 StockX
🛡️ Wayfair
📚 ThriftBooks
🐾 Chewy
💄 Sephora
🛒 Amazon
👟 Nike
🏟 REI
✈️ Expedia
🏦️ Skyscanner
🏪 Target
🛒 Walmart
👟 StockX
🛡️ Wayfair
📚 ThriftBooks
🐾 Chewy
💄 Sephora
🏖️ Etsy
🚛 Viator
👤 ThredUp
🏡 Zillow
🎧 Guitar Center
⚽ Dick's Sporting Goods
🛍️ Booking.com
📱 Best Buy
👜 Poshmark
🏭 Home Depot
✈️ Kayak
🛍️ Airbnb
🏖️ Etsy
🚛 Viator
👤 ThredUp
🏡 Zillow
🎧 Guitar Center
⚽ Dick's Sporting Goods
🛍️ Booking.com
📱 Best Buy
👜 Poshmark
🏭 Home Depot
✈️ Kayak
🛍️ Airbnb

+ 16 more, and counting →

The core mechanic

Everything you need. Nothing you don't.

Mull is built to be light, honest, and actually useful — not another dashboard you'll ignore. This is what every install gets, no setup required.

💭

Mull it — decide tomorrow

Not ready to decide? Save items to your Mulling List and get a reminder in 24 hours. Sleep on it, literally.

📊

Your goal, visualized

Watch your trip take flight, your home get built, or your debt shrink — a different animated visual for every goal, updating as you save.

🔒

Private by design

All goals and decisions live in your browser's local storage. No servers, no tracking, nothing ever leaves your device.

📈

Skips & mulls

Track how much you've protected toward your goal, how many times you walked away, and celebrate when you hit it.

New · Entirely optional

Now with a full picture, if you want one.

Mull still works exactly the same way — pick a goal, get caught at checkout, done in 10 seconds. But if you want to go deeper, Mull can now map your actual budget so every "worth it?" moment is grounded in real numbers, not a guess.

🎯

Multiple goals, one focus

Run several goals in parallel — a trip, a home, debt payoff — each with its own target date and pace. Star one as your focus; that's the one Mull shows you at checkout.

🔄

Move money between goals

Dollars you protect through skips aren't locked to one goal. Move them between goals anytime, or let them sit unassigned until you decide.

😌

Real guilt-free spend

Take-home, minus needs, minus what your goals need this month — Mull calculates exactly what's left to spend without a second thought.

Think before
you buy.

Free forever. No account. Works on 40+ sites. Installs in 10 seconds. Safari support coming soon.

Add to Chrome — It's Free
Transparency

How Mull makes money

Short answer: right now, it doesn't. Here's exactly why, in plain language.

Mull currently earns $0. There are no affiliate links anywhere in the extension right now — not dormant, not hidden, just not there. Right now, the only goal is getting Mull in front of as many people as possible and making it genuinely useful — not making money from it.

Someday, that may change. Mull may partner with companies down the road, and if that happens, we'll be transparent with you about it — any link that could earn Mull a commission will always be clearly labeled before it goes live, never quietly switched on.

We won't let commissions influence what we recommend. Whenever a "smarter option" is shown for a category, it'll be chosen because it's genuinely a good, trusted place to compare — not based on which one pays Mull the most.

Your data is never part of the deal. Mull doesn't collect or sell your information to anyone, ever. If affiliate commissions happen someday, they'll come only from completed purchases you choose to make — never from your data. See our privacy policy for the full details on what Mull does and doesn't collect.