I'd like to analyze the structure of some complex web pages that I've visited. Manually parsing out tags in the HTML source is tedious and prone to errors.
I'd like to find a utility that will accept HTML source (or a URL) as input, and show the hierarchical arrangement of the HTML elements, including source and id attributes, preferably in a treeview.
I was confident that it should be easy to find such a tool, but a few Google searches haven't turned up anything for me. I'm still confident that such a tool exists. Can the community help me find something? (I'm a Windows user and of course would prefer free if possible.)
IE8+ and Chrome both have wonderful developer tools built right in. Just visit a webpage and in IE, press F12, and in Chrome, go to wrench->tools->developer tools. They both show the tree view of the page as well as let you modify it. They're both very powerful.
Most browsers have a DOM viewer built in. Firefox has a third party extension that provides this.
These will all show the DOM after error recovery has been performed by the browser, before then you can't be sure that a valid tree could be constructed.
You can also use any good editor like Notepad++ which has highlighted syntax and node collapsing.
As other have mentioned, most modern web browsers have "developer tools" built into them which include a way to browse the HTML source in a tree-view. I've put together a quick screenshot comparison of the tools that the latest versions of the top five browsers (Internet Explorer 9, Firefox 4, Chrome 12, Opera 11 and Safari 5) offer.
Web Browser Developer Tools Screenshot Comparison
Use firebug or DOMinspector addon on firefox.
Download Firefox (http://www.mozilla.org/) and install the
Firebug addon https://addons.mozilla.org/firefox/addon/firebug/) BOTH ARE FREE
Related
I have been using Adobe Dreamweaver (2005) for doing web development. I recent switched to VS Code. Dreamweaver has a built in browser where I can inspect a HTML element and it will find it in the editor immediately. This comes in really handy especially when I'm working on messy projects that have been evolving for years. I really like a lot of things about VS Code but this feature is important in saving me a lot of time. Is there any way to get this feature in VS Code?
Thanks
The feature you're looking for is now built into every major browser in the form of dev tools: https://developers.google.com/web/tools/chrome-devtools/open#elements
You can simply click on an element, and in a separate pane, you will be shown the corresponding code.
You can also link DevTools directly to VS code via the extension debugger for chrome in the VS code marketplace - or debugger for Firefox, etc.
However, I recommend starting with the browser dev tools if you're not familiar with them already, as they are simple to use and require no configuration.
It is possible to open Microsoft Edge using a "pre-href" tag (my term for it), but I would like to be able to open other browsers as well. I am unable to find a list of pre-href tags to achieve this. Ideally, I would like a list that includes Internet Explorer 32bit, 64bit and Google Chrome
As an example, this works for Edge:
Open Google in Edge
The reason to do this, for my case, is that we are using a product that requires SilverLight support. Our users typically have Chrome as their default, which does not support SilverLight, so when they click a link from an email that references said site, it fails to load. I would like to format the link to load Internet Explorer.
EDIT: The environment this will be used in is self-contained and controlled. I am not proposing this technique be used on the general web, as I can see the problems that would create. That said, Microsoft has already done this on Bing in an effort to drive Edge adoption. I.e. That horse has already left the barn.
Example in the wild
Notice the big blue "Open Microsoft Edge".
I feel this is still a valid question, and would appreciate answers.
Any specific tools are there to develop the application using html 5?
I had used Aptana studio, I feel it is not fully user friendly tool to write a html 5 application.
http://marakana.com/bookshelf/html5_tutorial/index.html take a look at that for starter points.
This is a great, easy to read tutorial which will almost definitely help you learn HTML5 and CSS - http://net.tutsplus.com/articles/news/30-days-to-learn-html-and-css-a-free-tuts-premium-course/
For debugging, you can use Chromes developer tools (F12 on the keyboard) or the same on Opera & Internet Explorer. For Firefox download "Firebug".
Another "debugging" tool is http://html5.validator.nu/ which will validate your HTML and show any errors.
Notepad++ is a great free app to start developing HTML5 on, you can also use others, for example Aptana is a great IDE. For one with a GUI, I'd advise purchasing Dreamweaver, it is expensive but I say it's the best for learners.
For the last few years I have been using Firefox, Firebug, and the Web Devevloper Firefox toolbar for all my web dev needs, quite happily. I am, however, very interested in experimenting with moving my web dev support over to Chrome, but I have no idea where or how to start. How much functionality is build into Chrome and how do I access it? What add-ins do I need and where do I learn about using them?
These are two of many questions I think face most web devs moving into a much less familiar environment. I'm trying to ask a broader question here, along the lines of, what do I need to use and know for effective web deb and JavaScript debugging in Chrome and where is best to learn what I need to?
Google Chrome (as well as Safari) has really underestimated Developer Tools feature. Lots of developers are indifferent to it and use Firebug through habit. (to no purpose!)
But for me it is the main debug tool: it looks more pleasant than the latter and includes a way cooler features. (e.g. Timeline — separate time intervals for Loading, Scripting and Rendering).
Developer Tools Tutorial.
Can't give up with Firebug? Have a look — Firebug Lite.
More tools.
→ Webmaster tools;
→ Speedtracer;
→ Page Speed.
→ From google webmasters-faq:
There are several tools to help you test your website in Google Chrome:
Web Inspector
Right-click on any component on a web page to launch the web inspector. You'll be able to see the elements and resources associated with the component on which you clicked, including a hierarchy view of the DOM and a JavaScript console.
Task Manager
Select the Page menu icon, then Developer > Task Manager (or press Shift+Esc). The task manager shows all running Google Chrome processes, and the resources that they're using (memory, CPU, and network).
JavaScript Debugger
Select the Page menu icon, then Developer > Debug JavaScript. This launches a JavaScript debugger that can be used to attach to existing processes.
in chrome: right click and "Inspect Element"
the Light Version of Firebug is available too.
While in Chrome, press Ctrl+Shift+I and start experimenting. It's all you'll need.
The Web Developer port from Firefox is very handy.
The usual recommendations for a web development and debugging web browser are Firefox/Firebug or Safari/Web Inspector.
But I like Google Chrome, and would like to use this as my primary development browser. What plugins or tools should I get to optimise my web programming experience with Chrome?
Google Chrome's own "Firebug" is very good, just right click and inspect element to bring it up.
Frame two pages is helpful.
Chris Pederick's Web Developer toolbar is good too.
The Development and Coding Search (Chrome extension) is one of many Chrome extensions for developers. See the featured web development extensions for more developer-friendly extensions.
Pendule has a lot of good bits and bobs under one extension/icon. Few things I like about it...
View generated source
Colour picker
Ruler
Validator
There are probably tons of alternatives, but it's the best I've seen so far.