WebDiff

Quickly compare a website before and after an update, and spot any unwanted change

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We’ve all been there…You have to update a (WordPress) website for one of your clients. You update the CMS, the plugins, the theme. After the update you check some web pages and everything looks good. After one hour the client calls you (not in a good mood) because some buttons disappeared and the contact forms don’t work anymore. There must be a better way.

This is why we created WebDiff. WebDiff is a desktop app available for MacOS and Windows that allows you to compare a website before and after an update, allowing you to spot any unwanted change. Fewer errors, less stress, more satisfied clients.

TL;DR

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Compare web pages instantly with pixel-perfect visual, source code, and network request analysis
Get notified when reports are ready so you can focus on other tasks

At-a-glance

Overview

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Easily compare web pages, whether they’re online, on your local network, or behind a VPN.

Compare any website, anytime

Effortlessly analyze differences between web pages with WebDiff.

  • Enter any URL to compare pages side by side
  • Works locally and online for full flexibility
  • No page limits so you can analyze as much as needed
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Get notified the moment your web page analysis is complete.

Hands-free website analysis

Let WebDiff do the work while you focus on other tasks.

  • Automated analysis runs in the background
  • Stay notified with alerts when comparisons are ready
  • No waiting required—check results at your convenience
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Instantly spot web page changes with clear, color-coded reports.

Clear, actionable reports

Quickly understand changes with WebDiff’s detailed comparison report.

  • Traffic light indicators highlight key differences at a glance
  • Visual comparison detects even the smallest pixel changes
  • Source code tracking ensures page structure integrity

Tracking web page changes shouldn’t be a hassle. WebDiff gives you a clear, detailed comparison report, so you can catch every update—big or small—without lifting a finger.

Get lifetime access to WebDiff today!


From the founders

Introducing WebDiff

Hey, awesome Sumo-ling community!


Tired of manually checking websites after updates? We've got you covered!

I'm Emanuele, co-founder of TangoDev, the company behind WebDiff. We built this tool to help developers, agencies, and website owners easily compare different versions of their sites and spot unexpected changes or errors after updates. As a software developer, I know how frustrating it can be when an update breaks something without you noticing - WebDiff was born to solve that problem efficiently!


What can you expect from this deal?

With WebDiff, you'll get an easy-to-use desktop app that compares your site's versions, highlighting differences and potential issues before they become real headaches. It's a must-have for web professionals who want to ensure their updates go smoothly.


Who is WebDiff for?

It's perfect for developers, web designers, agencies and site owners who want to catch errors before they affect their users.

Do I need coding skills?

Nope! WebDiff is super intuitive - just scan, compare, and catch any unexpected changes.

Does WebDiff work with any website?

Absolutely! WebDiff works with local websites, intranet sites, or any online website.


You can reach me at info@webdiff.app for any questions!

Cheers,

Emanuele

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