Alternatives · SEO Extensions
Web Developer alternatives
As of Oct 24, 2026, the best Web Developer alternative for most people is SEOquake (3.2 GPA), first in our ranking of SEO browser extensions. It's also the best free one.
Web Developer compared with 5 alternatives: SEOquake, Detailed SEO Extension, META SEO inspector, View Rendered Source and HeadingsMap.
Web Developer is free to use. All 5 alternatives are free or have a free plan.
Listings checked up to Oct 23, 2026 · Where the facts come from
At a glance
| Tool | Price | Free plan | Runs on |
|---|---|---|---|
| Web DeveloperThis tool | Free | Free | Browser extension |
| SEOquake | Free | Free | Browser extension |
| Detailed SEO Extension | Free | Free | Browser extension |
| META SEO inspector | Free | Free | Browser extension |
| View Rendered Source | Free | Free | Browser extension |
| HeadingsMap | Free | Free | Browser extension |
Price against what you get
Web Developer has no paid plan and scores 2.3 out of 4 on features, ease of use and platforms. None of the 5 alternatives on this chart both scores higher and starts lower.
SEOquake scores higher without starting lower.
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
How each one differs from Web Developer
SEOquake
Free Semrush extension for page audits and metrics in Google results
- SEOquake is free.
- SEOquake also covers backlink analysis and AI search visibility.
Suits: Checking a rival's traffic and backlink figures while browsing
Detailed SEO Extension
Free Chrome and Firefox extension for one-click on-page SEO checks
- Detailed SEO Extension is free.
- Detailed SEO Extension also covers schema markup.
Suits: SEOs checking a page's meta tags, headings and schema without reading the source
META SEO inspector
Free Chrome extension that lays out a page's hidden metadata
- META SEO inspector is free.
- META SEO inspector also covers schema markup.
Suits: Checking a page's titles, descriptions and social tags before publishing
View Rendered Source
Free Chrome extension comparing raw HTML with the rendered page
- View Rendered Source is free.
Suits: SEOs checking what a JavaScript-heavy page looks like before and after rendering
HeadingsMap
Free extension that maps a page's headings and flags broken levels
- HeadingsMap is free.
- HeadingsMap also covers content optimization.
Suits: Content editors checking that a page's headings follow a clean order
Limits worth knowing in 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.
Common questions
What are the alternatives to Web Developer?
The alternatives to Web Developer in this directory are SEOquake, Detailed SEO Extension, META SEO inspector, View Rendered Source and HeadingsMap. Each one has a side-by-side comparison with Web Developer.
Is there a free alternative to Web Developer?
Yes. SEOquake, Detailed SEO Extension, META SEO inspector, View Rendered Source and HeadingsMap are free to use.
When were these prices checked?
Every listing on this page was checked on Oct 23, 2026, against the pages it cites. Vendors change prices without notice, so confirm on their site before you buy.