SEOquake vs Web Developer (2026): which should you pick?
As of Oct 24, 2026, we pick SEOquake: it is first in our ranking of SEO browser extensions, and it grades higher too, 3.2 against 3.0.
Checked Oct 23, 2026 · graded Oct 23, 2026 by ToolGPA
SEOquake grades higher on features. They get the same grade on value for money, the free plan, ease of use and platforms.
Price, platforms and features side by side. The table says where each price was read and when.
SEOquake
Free Semrush extension for page audits and metrics in Google results
Free
Web Developer
Free browser toolbar of page inspection and validation tools
Free
Which one is for you
Pick SEOquake if
- Fits if you check a rival's traffic and backlink figures while you browse
- Works for reading Semrush figures for every result on a Google search page
Look elsewhere if
- Watch out: the traffic and backlink figures are Semrush estimates, not data from your own analytics
- Skip it if you use Firefox, where the version is 3.9.9 from December 2022 against 4.3.0 on Chrome
- Tight if you won't make a Semrush account, as Authority Score, referring domains and Traffic Analytics need one
- Not for you if you want the interface in a language other than English
Pick Web Developer if
- Fits if you check alt text, hidden elements and markup by hand
- Works for people who switch between Firefox, Edge and Chrome and want the same tools in each
Look elsewhere if
- Not for you if you want search, ranking or backlink data, as it has none
- Watch out: the latest release is 3.0.1 from June 2024, built in the developer's spare time with no release dates
- Skip it if you're on Opera, where the version is 0.2.2 from February 2017
- Tight if you're on Firefox, which lacks the disable features, Display Style Information and the context menu
How we grade them
| 3.2GPASEOquakeVery good | 3.0GPAWeb DeveloperVery good | |
|---|---|---|
| Value for money | AFree from Semrush, with no paid tier for the extension. Core reports and the built-in Semrush figures work with no account at all. | AFree and open source in the Chrome, Edge, Firefox and Opera stores; the developer asks for optional donations. |
| Free plan and trial | AFree outright. Authority Score, referring domains and Traffic Analytics need a Semrush account, but a free one is enough. | AFree outright: every tool, on all four browsers, with nothing held back. |
| Features | BTitle, meta, headings, canonical and indexability with an audit, Semrush figures under every Google result in any country, AI Overview sources, links with follow status and HTTP codes, keyword density and domain comparison. That covers the whole job here. | CAlt and title attributes, broken images, element outlines, hidden elements, live CSS, cookies, forms, rulers, responsive previews and validator links. A large toolbox, but only part of it is SEO, and there's no search or ranking data. |
| Ease of use | BNo rating on record, but nothing to set up: Quick View works on the first page you open, with no account. | BNo rating on record, but nothing to set up: click the toolbar button and pick a tool from the menu. |
| Platforms and integrations | CChrome and Firefox, so computers only, and the Firefox version lags far behind. It works on Google Search and draws on Semrush, and nothing else is listed. | CChrome, Edge, Firefox and Opera on Windows, macOS and Linux, but computers only, with no integrations. |
| Best for | Semrush figures on Google results and pages | a toolbar of page inspection tools |
The GPA is the average of the five grades: an A is 4 points, an F is none. The full reasons are on each tool's page: SEOquake and Web Developer. How we grade
Price against what you get
SEOquake has no paid plan and scores 2.7 out of 4 on features, ease of use and platforms. Web Developer has no paid plan and scores 2.3.
SEOquake scores higher for the same starting price. Of the other SEO browser extensions on the chart, none scores higher than SEOquake for less, and none scores higher than Web Developer for less.
Features, ease of use and platforms, averaged
What paid plans start at, a month (each step along is roughly double) →
- The best score at each price
- Has a free plan
- No free plan
Where they differ
- Web Developer is open source, according to its own site.
- SEOquake also covers backlink analysis and AI search visibility.
In commonFree planBrowser extensionSite audit
At a glance
| SEOquake | Web Developer | |
|---|---|---|
| Pricing | Free | Free |
| Starts at | Free | Free |
| Free plan | The extension is free and its core reports work without an account; connecting a free Semrush account adds Authority Score, referring domains and Traffic Analytics. | The whole extension is free in the Chrome, Edge, Firefox and Opera add-on stores; the developer asks for optional donations. |
| Free trial | None listed | None listed |
| Browser extension | ||
| Made by | Semrush Inc. | Chris Pederick |
| Price read from | chromewebstore.google.com | chrispederick.com |
| Checked | Oct 23, 2026 | Oct 23, 2026 |
Worth knowing
SEOquake
- Authority Score, referring domains and Traffic Analytics need a Semrush account, though a free one is enough.
- The Firefox version is much older: 3.9.9, last updated in December 2022, against 4.3.0 on Chrome in October 2026.
- Its traffic and backlink figures are Semrush estimates, not data from your own analytics.
- The Chrome Web Store lists the interface in English only.
Web Developer
- The latest release, 3.0.1, dates from June 2024; the developer works on it in spare time and gives no release dates.
- The Opera version is much older, version 0.2.2 from February 2017.
- The Firefox version lacks the disable features, Display Style Information and the context menu, because Firefox removed the APIs.
- It is a general web developer toolbox, with no search or ranking data; its SEO uses are page-level checks.
Key features
SEOquake
- Quick View and page audit
- Shows the title, meta description, headings, canonical, indexability and word count, then audits content, mobile and technical issues such as hreflang and alt text.
- SERP Overlay
- Puts position numbers and Semrush metrics under each organic Google result, in the country and language you pick, with CSV export.
- AI Overview sources
- Shows which pages a Google AI Overview cites and compares them by Semrush traffic and backlink figures.
- SEObar
- A toolbar on the page that keeps chosen metrics, such as traffic estimates and backlink counts, in view while you browse.
- Link and keyword density reports
- Lists internal and external links with anchor text, follow status and HTTP codes, and counts phrases of one to four words.
- URL and domain comparison
- Compares several URLs or domains side by side on Semrush traffic, backlink and other metrics; audits export as PDF.
Web Developer
- Image and attribute checks
- Display alt attributes, image dimensions and title attributes on the page, replace images with their alt text, and find broken images.
- Outline and element information
- Outline elements with optional labels, show hidden elements and tag names, and inspect an element's details as you point at it.
- Validators
- Send the page to online HTML and accessibility validators from the toolbar; the help says these third-party features are the only ones that pass data on.
- Edit CSS and print styles
- Edit a page's CSS live in a panel, view print styles, and hide background or all images to see the page without them.
- Cookies, forms and JavaScript
- View, add and edit cookies, view form information, populate form fields, remove form validation and view a page's JavaScript.
- Rulers and responsive layouts
- A ruler, line guides and a color picker, plus responsive layout previews and resize sizes you configure yourself.
Plans
SEOquake
Free$0
Quick View, Full Report, SERP Overlay, SEObar and the built-in Semrush metrics, with more metrics after a free Semrush sign-in.
Web Developer
Free$0
Every tool in the extension, free on all four browsers, with optional donations to the developer.
Common questions
Which is cheaper, SEOquake or Web Developer?
As of Oct 23, 2026, both SEOquake and Web Developer are free to use.
Which has a free plan, SEOquake or Web Developer?
As of Oct 23, 2026, both SEOquake and Web Developer have a free plan.
More comparisons
How this page was made
- The verdict at the top follows a fixed rule. When both tools are in the same category and either is in our top three for it, the verdict follows that ranking: the higher-placed tool is our pick. The top three weigh who each tool suits as well as its grades, so a pick can go against the GPA. Otherwise the page does not pick one and says which grades higher: the higher GPA first; on a tie, the one with a free plan, then the one that starts cheaper in dollars a month, counted the same way for both; if they are still level, what the choice depends on.
- The grades are our own, from each tool’s review or report card. The GPA is their average.
- Prices, plans and platforms come from each tool’s listing. The table above says where each price was read and when.
- The differences and the answers to the questions are worked out from those listings.