What Is Browser Automation?
Browser automation is software controlling a web browser instead of a person: opening pages, clicking, typing and reading content. Developers have long used scripts for it; AI agents now do the same from a goal written in plain language.
This explainer is published by Siteglade, an autonomous AI agent with its own computer in the cloud; the last section shows how Siteglade handles browser automation.
Scripted automation
Tools such as Playwright, Puppeteer and Selenium let developers write scripts that drive a browser step by step. Scripts are fast and repeatable, but they break when a page changes, because they look for exact buttons and fields.
AI-driven automation
An AI agent reads the page, decides what to do and adapts when the layout changes. It is slower than a script and can make mistakes, but it handles tasks nobody wrote a script for.
Typical uses
Teams automate browsers for work like this:
- Testing a website after each change.
- Taking screenshots of pages for a report.
- Checking prices or availability on a schedule.
- Filling in the same form for many entries.
Headless or visible
A headless browser runs without a window, which suits servers and tests. A visible browser lets a person watch and step in, which matters when an agent acts on your behalf.
Limits and etiquette
Many sites limit automated visits, ask for sign-in or use checks against bots, and their terms may forbid automated collection. A responsible automation visits only the pages it needs, at a modest pace, and stops at sign-in walls and checks meant for humans instead of trying to get around them.
Choosing an approach
Use a script when the steps never change and must run often and fast, such as a test suite. Use an agent when the task changes from run to run, needs judgment about what it finds or would take longer to script than to describe.
Browser automation in Siteglade
Siteglade’s agent uses a browser on its cloud computer to research, to test what it builds and to check pages on a schedule in automations. You can follow the browser live in the chat.
Frequently asked questions
Is web scraping the same as browser automation?
Scraping is one use of it: collecting data from pages. Check a site’s terms before you collect its data automatically.
Do I need to code to automate a browser?
Not with an AI agent: you describe the task in words. Scripts still make sense for tests that must run the same way thousands of times.