Sizzy Alternatives

The browser for ambitious web developers that want to 5× their quality and efficiency.

paid Free Trial $9.0 / Monthly (Individual user)

Live interactive cross-browser testing from your browser.

Browsershots makes screenshots of your web design in different browsers.

Test mobile or web apps instantly across 700+ browser/OS/device platform combinations - without infrastructure setup.

Browser Testing made simple! Run automated, visual, and manual tests on 1500+ real browsers and mobile devices. Test more browsers, in less time.

Develop responsive web-apps 5x faster!

open-source

BrowserStack is a software testing platform for developers to comprehensively test websites and mobile applications for quality.

freemium $29.0 / Monthly (Starts at single user plans and billed annually)

litmus tests and tracks your email campaigns, so you can always put your best design forward.

LT Browser is a free dev friendly browser for developers and testers. You can see mobile view of website on different screen sizes and resolution on 50+ pre installed view ports. You can build, test and debug your website faster then ever.

Responsive Web Design, Mobile & Cross-Browser Compatibility Testing Software.

Testize gage your webpage’s ease of use against at present acknowledged Internet gauges to recognize website appropriateness over numerous cell phones and programs.

Test the spamminess of your email

webcheck.me Free online website scanner. Checks security, seo, performance and mail problems.