Beta

Doorbot is free to use during the testing period — try the free tools and help shape the app by leaving feedback.

Built for the Door & Dock Industry

The Field Reference App
for Overhead Door Techs.

100% focused on the overhead door and loading dock industry. Doorbot puts spring calculators, troubleshooting trees, guided procedures, and manufacturer documents in one offline-ready app — so you can solve problems fast, without leaving the job site.

4,500+
Manufacturer documents
30+
Top OHD manufacturers
14+
Engineering calculators
Saved to Favorites
Spring Calculator
Offline — No Signal
Still fully functional
doorbot
Torsion Spring Calc
CALC
Wire Size0.2253″
Inside Dia2.00″
WindRight Hand
IPPT7.42 in·lb
LiftMaster 8550W
DOC
Installation Manual
8550W · Rev 3.2
Error Code Reference
Blink codes + LED
Home
Procedures
Tools
Docs
Covers products from
LiftMasterGenieClopayWayne DaltonAmarrOverhead Door
Features

Everything You Need to Know, Instantly

Doorbot is a mobile-first Progressive Web App that puts the full depth of overhead door knowledge in your pocket — no signal required.

Universal Search

One search box covers everything — procedures, troubleshooting guides, engineering tools, safety content, and manufacturer documents. Find it in seconds.

Guided Procedures

Interactive, step-by-step procedures for common overhead door tasks. Follow each step on-screen without having to remember anything or flip through a binder.

Troubleshooting Wizards

Describe the symptom and Doorbot walks you through a branching diagnosis tree. Stop guessing — get a structured path to the root cause.

4,500+ Manufacturer Documents

Installation manuals, wiring diagrams, programming guides, and maintenance docs from 30+ top overhead door manufacturers — organized by brand, product type, and series. Filter by door type: sectional, rolling steel, fire, high-speed, dock, or residential.

Safety Reference

Hazard guides with severity levels and safe operating procedures — so you're never working blind on a high-risk task.

Offline-First PWA

Install Doorbot on any device like a native app. Service worker caching keeps everything accessible in commercial buildings, basements, and anywhere else you lose signal.

4,500+
Manufacturer documents
30+
Top OHD manufacturers
14+
Engineering calculators
6
Door types covered
Engineering Tools

14 Calculators Built for the Field

From torsion spring IPPT to blink code decoding, Doorbot's engineering tools cover the calculations you do every day — with Imperial and Metric support throughout.

Spring IPPT Calc
Spring Re-Engineering
Spring Identifier
Door Weight Estimator
Cable Sizing Tool
Cycle Life Calculator
Blink Code Decoder
Operator Error Codes
DIP Switch Settings
Torque Specifications
Track & Roller Sizes
Cable Drum Reference
Wire Size Reference
Spring Color Codes
Torsion Spring Calculator
Spring Re-EngineeringACTIVE
WIRE SIZE (in)
0.2253
INSIDE DIAMETER (in)
2.0000
WIND DIRECTION
Right Hand (RH)
CALC IPPT7.42 in·lb
Imperial
Metric
How It Works

On the Job in Under 5 Minutes

Doorbot is a Progressive Web App — no app store required. Sign in, install, and you're ready to go.

1

Sign In

Create an account with your Google credentials — no separate password to remember.

2

Accept Terms & Install

Agree to the Terms of Service, then tap “Add to Home Screen” to install the PWA like a native app on any iOS or Android device.

3

Search or Browse

Use universal search to find anything instantly, or browse by category — Procedures, Tools, Guides, Safety, or Docs.

4

Works Everywhere

Once loaded, Doorbot caches everything locally. Pull up a spring calc or troubleshooting tree with zero signal — deep in any building.

Manufacturer Documents
Organized by brand, category, and product series. 4,500+ docs from 30+ manufacturers.
Troubleshooting Trees
Symptom-first diagnosis wizards that walk you to the root cause, step by step.
Browse by Door Type
Sectional, rolling steel, fire, high-speed, dock, or residential — filter to exactly what applies.
Works on Any Device

Add It to Your Home Screen. Use It Anywhere.

Doorbot runs in your phone's browser — no app store download required. Tap “Add to Home Screen” and it behaves just like a native app, ready to launch from your dock.

  • Works on iPhone and Android, any modern browser
  • Calculators, procedures & guides work without a signal — great for basements and commercial buildings
  • Manufacturer documents load when you have internet, and are available once cached
  • Bookmark your most-used tools, procedures, and manufacturers to Favorites
  • Imperial / Metric toggle across all calculators

Try the Free Tools — No Sign-Up Required

Use the spring calculator, error code decoder, blink code decoder, and manufacturer directory right now — no account needed. Sign in to unlock all 13 tools, guides, procedures, and favorites.

Sign in with Google · Apple & Facebook coming soon · No download required