Mighty Mule, Linear, and Nice. One family, one standard of engineering.

Looking for a Garage Door Opener?
You're in the Right Family.

Mighty Mule builds gate openers. Linear, our professional sister brand under Nice, builds the garage door openers. Two models. Same trusted engineering. Lifetime motor warranty.

Find a Linear Dealer Near You Compare the Models ↓

You Know Mighty Mule.
Now Meet Linear.

Mighty Mule = DIY gate openers for homeowners. Linear = professional-grade garage door and gate openers, built for certified installers. Both are brands of Nice North America, part of Nice S.p.A., a global leader in access and home automation.

Same engineering DNA. Same commitment to safety. When you choose Linear, you're choosing the professional arm of a brand family you already know.

Mighty Mule

DIY gate openers. Install it yourself.

Linear Pro

Professional garage door & gate openers. Dealer-installed.

Nice

Global family. 100+ countries. The company behind both brands.

Two Openers. One Decision.

Both share the same DC motor, battery backup, LED lighting, and lifetime warranty. The only real question is: do you want smart features?

Best Value

Nice Linear 621

The value-driven choice. Reliable, quiet, and built with every essential feature. Nothing you won't use.

Smartphone ControlNo

MotorDC, soft start/stop

Battery BackupPre-installed

LED Lighting800 lumens

Max Door8 ft, 350 lbs

Drive OptionsBelt or Chain

Motor WarrantyLifetime

View datasheet (PDF)

Smart Pick

Nice Linear 661

The connected choice. Wi-Fi + Bluetooth with the Nice G.O. app for control from anywhere, plus everything the 621 offers.

Smartphone ControlNice G.O. App

Wi-Fi / BluetoothConnected wall station

Battery BackupPre-installed

LED Lighting800 lumens

Max Door8 ft, 350 lbs

Drive OptionsBelt or Chain

Motor WarrantyLifetime

View datasheet (PDF)

Which One Is Right for You?

Choose the 621 if:

You want a reliable, quiet, feature-packed opener at the best value
You don't need app control — a wall button and remote are all you want
You prefer simplicity — set it, forget it, it just works

Choose the 661 if:

You want to open, close, and monitor your garage from anywhere
You want guest access for family, visitors, or deliveries
You value auto firmware updates and real-time alerts on your phone

What Makes These Openers Different

These aren't big-box openers. Every feature is engineered for long-term reliability and professional installation.

Battery Backup Built In

Garage door and light stay working during power outages. Up to 3 days or 70 cycles of operation. No separate purchase needed.

Whisper-Quiet DC Motor

Soft start and soft stop. No jerky movements. So quiet you won't hear it from inside the house. Opens at a consistent 6.5 inches per second.

Smart Control on the 661

Wi-Fi and Bluetooth built in. Open, close, and monitor your garage from anywhere with the Nice G.O. smartphone app. Auto firmware updates. Guest access for family and deliveries.

Lifetime Motor & Belt Warranty

Motor and drive belt covered for life. Mechanical parts and chain rails: 5 years. Electrical and battery: 1 year. Backed by Nice North America.

Installed by a Pro.
Backed for Life.

Professional installers across the country choose Linear for their customers. Quiet operation. Clean install. Built to last. See how real pros do it.

Real Installer

Watch an independent pro unbox and guide you through the Linear opener.

Finished Install

A dealer shows the opener in action at a real home. See how quiet and smooth it runs.

Proper sizing. Your dealer assesses your door and configures belt vs. chain, 7 ft vs. 8 ft rail — exactly what your setup needs.

Safety calibration. Obstruction sensors tuned and tested. Auto-reverse confirmed working. No guesswork.

Battery tested. Dealer confirms the backup battery is fully operational — your garage works even when the power quits.

Warranty protected. Professional installation keeps your lifetime motor warranty intact.

No ladder. No frustration. Done in a few hours by someone who does this every day.

Find a Certified Linear Dealer

Enter your zip code to find a Linear dealer near you. Ask them for a quote on the Nice Linear 621 or 661 garage door opener.

Quick Answers

The questions most homeowners have before they call a dealer.

Does Mighty Mule make garage door openers?

No — Mighty Mule specializes in DIY gate openers. For garage door openers, we recommend Linear, our professional sister brand under Nice. Both brands are part of the same family.

Can I buy the Linear 621 or 661 directly from this site?

Linear openers are sold and installed through certified professional dealers. Use the dealer locator above to find one near you — they'll handle the quote, purchase, and installation.

What's the difference between the 621 and the 661?

Both share the same motor, battery backup, LED lighting, and lifetime motor warranty. The 661 adds Wi-Fi + Bluetooth with the Nice G.O. smartphone app for remote control, guest access, and real-time alerts.

How much does installation cost?

Pricing varies by dealer and your specific setup — door type, drive choice, rail length. Contact your local Linear dealer for a quote.

What if I already have a garage door and just need the opener?

Both the 621 and 661 are opener-only units. They work with your existing sectional garage door (up to 8 ft tall, 350 lbs). Your dealer will assess compatibility during the quote.

What's the warranty?

Linear provides a warranty to your installing dealer: lifetime on the motor and drive belt, 5 years on mechanical parts and chain rails, 1 year on electrical components and battery. Your dealer will walk you through the coverage details.