HeadingsMap
Developer Tools
Likely PaidConfidence 88Platform PayPal
To show, browse and audit (for accessibility and SEO) the headings structure
Users
100K
Rating
4.5
Reviews
81
7D Growth
0|0%
Stable signalNo paid features detectedHigh-risk permissions
Web Developer
Adds a toolbar button with various web developer tools.
Users1MCurrent public install base
Rating4.5Store average score
Reviews2,830Public review volume
Manifest versionV3Extension platform version
7-day growth0Net users gained this week
7-day growth rate0%Relative weekly velocity
Preview
6 assetsWeb Developer Media preview
Trend
User growth trend
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User Growth Over Time
Rating trend
7-day rating trend
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7-day rating change
Start
4.46
Latest
4.46
7-day rating change
0.00
2026年7月13日2026年7月19日
Growth overview
Daily, weekly, and monthly growth
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1-day growthFlat
00%7-day growthFlat
00%30-day growthFlat
00%Technical snapshot
Version, languages, and crawl freshness
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Version3.0.1
ManifestV3
Size574KiB
Languages1English (United States)
Published
Store updated
Last crawled
English (United States)
Overview
Product summary
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The Web Developer extension adds a toolbar button to the browser with various web developer tools. This is the official port of the Web Developer extension for Firefox.
--------------------
The best place for support is not in the reviews section below, but on the Web Developer site in the help:
https://chrispederick.com/work/web-developer/help/
Also available there are a full set of release notes:
https://chrispederick.com/work/web-developer/history/chrome/
Reviews
Recent review snapshot
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Store average score4.5Chrome Web Store aggregate rating, including ratings without synced review text
Synced text average4.2Average computed only from synced review bodies below
Reviews with text715Synced review bodies
Total ratings / reviews2,830Chrome Web Store public rating/review count
Store average score: 4.5. The bars below are calculated from synced review text only, so they may be empty for extensions that have public ratings but no synced comments yet.
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Review related products from the Chrome Web Store detail page.
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The tool is actually wonderful. I've used it for years. BUT. And it's an enormous BUT. This extension overrides and locks your notification settings (along with other settings) so that you can't change them. Because of that, any website can now constantly send you notifications and spam you all of the time. How about the fact that any of those notifications of links that they send could be a virus. That enough evidence for you sir? I haven't even looked into the code or other permissions of this extension but just from that alone, it's a huge red flag and security risk.
Que pasa con la extensión?? Desde hacer varios días al usar la opción "Validar html Local" recibo mensajes como "503 Service Unavailable, No server is available to handle this request." Alguna ayuda para solucionar esto? What about Web Developer Tool?? Since several days ago when using the "Validate Local html" option I receive messages like "503 Service Unavailable, No server is available to handle this request." Any help to fix this?
Good But Why http?
Excellent!
Has lots of very useful tools. It makes finding information much faster and less confusing.
thật tiếc khi biết phần mềm này muộn quá.
ottima vale il page info - media di firefox
Автоматически подписывает на все уведомления от всех сайтов и блокирует отключение в настройках.
Occasionally very useful. But very annoying: Opens a new tab with itself each time I open Chrome. Why?
беспощадно спамит рекламными пушами