Web application software runs in your browser instead of on your computer
Web application software is a program you use through your web browser — Chrome, Firefox, Safari, or Edge — rather than one you download and install on your computer. When you open Gmail, edit a Google Doc, use Figma to design, or manage a Trello board, you are using web application software. The program itself lives on a company's server, and your browser is just the window you look through.
The main difference from traditional software is where the work happens. When you use Microsoft Word installed on your computer, your machine does the processing. When you use Google Docs in your browser, Google's servers do the processing, and your browser displays the result. You do not need to install anything, update anything, or worry about whether your computer is powerful enough.
Web applications work on any device with a browser — a laptop, tablet, phone, or Chromebook. You can start work on one device and finish on another without saving files or syncing folders. The software is always the current version because there is nothing to update.
Key Takeaways
- Web applications run in your browser and store data on remote servers, so you can access them from any device with internet.
- You do not install or update web applications — the company running the service handles all of that automatically.
- Web applications often cost less than traditional software because the company runs one version for many users instead of selling copies.
- Web applications require an internet connection to work, while traditional software installed on your computer works offline.
- Most web applications save your work automatically to the cloud, so you do not lose progress if your browser closes.
How web applications store your work and data
When you type into a web application, your work is saved to a server — a computer owned by the company running the service — not to your own device. This is called cloud storage. Google Docs saves your document to Google's servers, Figma saves your design file to Figma's servers, and Slack saves your messages to Slack's servers.
Because your work lives on a remote server, you can open it from anywhere. Close your laptop, open your phone, and your document is right there. Multiple people can work on the same file at the same time because they are all looking at the same version on the server. This is why web applications are popular for teams.
The trade-off is that you need an internet connection to use them. If your wifi goes down, you cannot access your work. Some web applications let you work offline and sync when you reconnect, but most do not.
Web applications versus traditional software you install
Traditional software — like Photoshop, Visual Studio, or Quicken — runs on your computer. You download it, install it, and it works whether you have internet or not. You own a copy and can use it as long as you want. Updates come as separate downloads you choose to install.
Web applications run in your browser and live on someone else's server. You never own a copy. You pay a monthly or yearly subscription (or use it free with ads), and the company can change or shut down the service. Updates happen automatically and instantly — you do not choose when.
Web applications are usually cheaper because the company runs one version for thousands of users. Traditional software is more expensive because you are buying a copy for your machine. Web applications are easier to share with a team because everyone accesses the same version. Traditional software requires you to buy a license for each person.
| Feature | Web Application | Traditional Software |
|---|---|---|
| Where it runs | On company servers, viewed in browser | On your computer |
| Installation | None — open in browser | Download and install |
| Updates | Automatic and instant | You choose when to update |
| Offline use | Usually not possible | Works without internet |
| Cost | Usually monthly subscription or free | Usually one-time purchase |
| Team collaboration | Built in — everyone sees same version | Requires file sharing and syncing |
| Device access | Any device with a browser | Only on computers where installed |
Common types of web applications and what they do
Productivity web applications let you write, calculate, and organize. Google Docs, Sheets, and Slides are web applications for documents, spreadsheets, and presentations. Notion is a web application for notes and databases. Microsoft 365 online versions are web applications too.
Design and creative web applications let you build visuals without installing heavy software. Figma is a web application for interface and graphic design. Canva is a web application for social media graphics and posters. Adobe Express is Adobe's web application for quick designs.
Project and team management web applications help groups organize work. Trello uses cards and boards. Asana uses task lists and timelines. Monday.com uses customizable workflows. Slack is a web application for team messaging.
Code and development web applications let programmers write and test code in a browser. GitHub is a web application for storing and sharing code. Replit is a web application for writing and running code. CodePen is a web application for experimenting with HTML, CSS, and JavaScript.
Why companies choose web applications for their services
Companies build web applications because they can serve millions of users from one set of servers. When you use Gmail, you are one of 1.8 billion users on the same software. The company updates it once, and everyone gets the update instantly. With traditional software, the company would have to release a new version and hope users download it.
Web applications are cheaper to support because the company controls the environment. They know exactly what browser versions people use, what operating system they run, and what hardware they have. With traditional software, users have thousands of different setups, and the company has to test and support all of them.
Web applications make money more reliably. A subscription model means steady income. Users cannot pirate the software because it does not exist on their computer. The company can see how people use the product and improve it based on real data.
Security and privacy in web applications
When you use a web application, your data travels across the internet to a company's server. This raises two questions: Is it safe in transit, and is it safe on their server?
Most web applications use encryption to protect data while it travels. Look for "https://" at the start of the web address — the "s" means the connection is encrypted. This prevents someone on your wifi network from seeing your password or documents.
Data on the company's server is a different question. The company can see your data. They may use it to improve their service, sell it to advertisers, or share it with government agencies. Read the privacy policy to understand what the company does with your information. Some web applications let you encrypt your data so the company cannot read it, but this is rare.
Frequently Asked Questions
Do I need the internet to use a web application?
Yes, almost all web applications require an active internet connection. Some let you work offline and sync when you reconnect, but most do not. If your internet goes down, you cannot access your work until it comes back.
Is my data safe in a web application?
Your data is encrypted while traveling to the company's server, but the company can see it once it arrives. Read the privacy policy to understand what they do with it. Choose services from companies with good security records if you are storing sensitive information.
Can I use a web application on my phone?
Yes. Any web application that works in a browser works on your phone's browser. Many companies also build phone apps that work like their web application but are optimized for smaller screens.
What happens if the web application shuts down?
You lose access to your work. Some services let you download your data before shutting down, but not all. If you rely on a web application for important work, keep backups on your computer or another service.
Can I use a web application offline?
Most web applications do not work offline. Some, like Google Docs and Figma, have offline modes that let you work without internet and sync when you reconnect. Check the service's documentation to see if offline work is available.