When comparing Chromium vs QtWeb, the Slant community recommends QtWeb for most people. In the question“What are the best lightweight web browsers?” QtWeb is ranked 5th while Chromium is ranked 9th.
Ranked in these QuestionsQuestion Ranking
Pro Completely Open Source
Both Chromium and and its rendering engine Blink are licensed under the BSD-license which includes no copyleft unlike the GNU or Mozilla Licenses.
Pro Supports all of Google Chrome features
As Chrome is based on Chromium they overlap in supported features. Chromium syncs between devices, automatically updates, has great built-in developer tools, installs extensions without a restart, includes a combined text bar for entering URLs and searching and has excellent HTML5 compatibility just like Chrome.
Pro Access to Chrome's extensions
Chromium can access the Chrome Web Store and all the extensions hosted there can be installed and used on Chromium.
Chrome and Chromium are available on almost every device nowadays
Every tab and plugin runs in its own subprocess so they will never affect the whole browser ,however that consumes more memory than other browsers
Pro Latest Blink
This is the browser Blink is made for and developed alongside.
It does not have any extensions preinstalled and focuses to be a web browser.
Pro Backed by Google
Chromium was first released as a large portion of Chrome's source code as an open source project by Google in september 2008. The idea was to encourage developers to review the underlying code and to contribute in making Chrome cross platform and port it to Mac and Linux as well.
Nowadays Chromium is a large project with a huge community that's standing behind it but still Google continues to take an extremely active role in Chromium development. This ensures the longevity and constant development and improvement of the browser.
Pro Does not come with Google
Unlike Chrome it does come wihout any Google account requirement.
Pro Despite its very small size, it is self-contained: it does not depend on IE
Pro Very small download
Windows: installer ~8MB; portable (zip) ~7.4MB
Pro Very lightweight with minimal system requirements
Pro Windows version available in installer and portable (zip) formats
Pro Available for different operating systems
Windows, Linux, Unix and MacOS X.
Con High RAM usage
Due the sandboxing, Chromium also eats a lot of RAM , which can be a problem for machines with smaller RAM.
Con Lacks privacy options
Con No official builds
There are no official builds available so you have to rely on a third party distributor
Con Lacks support for certain common media formats
As Chromium avoids bundling any proprietary software, media that requires proprietary codecs or formats such as AAC, H.264, MP3 and Flash will not play by default on Chromium.
Con Not possible to disable WebRTC
Con Can be dangerous / only available as Source
There are plenty of unofficial Chromium distributors and every one of them can disable specific features (like sandboxing) for their build, so you will never know what you get.
Con It's not in active development
Last version (3.8.5) was released on Sep 9, 2013.