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CSS Peeper

https://csspeeper.com/
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4.3 (

445 ratings

)
Extension Developer Tools 500,000 users

4.3 out of 5

445 ratings

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Chris B Oct 9, 2025

trash. adds popup on shopping carts now and it states its because they've partnered with charities..um no.

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Abdulraman Sep 28, 2025

CSS Peeper has completely transformed how I inspect design properties. No more digging through layers of code everything I need (colors, fonts, assets) is organized and instantly accessible. A must-have for any web designer

1 person found this review to be helpful
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Jessica Nurenberg Sep 21, 2025

CSS Peeper is convenient for inspecting styles, but it comes with serious security tradeoffs: -Its CSP choices open it up to code injection vulnerabilities. -It has access to sensitive local services (localhost). -It can send data to external servers, including its own. -It can potentially see your browsing history. Since the extension can inject scripts and exfiltrate data, if it’s ever compromised (supply chain attack, malicious update), it could be weaponized very quickly. The localhost... Show more

4 out of 4 found this helpful
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Dawid Młynarz Developer Sep 22, 2025

Thank you for taking the time to share this detailed feedback. We take any potential security issues very seriously, and upon seeing this Chrome Store review, we immediately addressed it: - CSP has been implemented with a strict whitelist of only the essential scripts, such as Google Tag Manager, Stripe, and Firebase. - Localhost access and other unnecessary permissions have been removed with the upcoming release. - The extension can only send data to our own services for authorization and permission-level handling. Starting with CSS Peeper v1.0.19, all of these issues have been resolved. For any security-related inquiries, feel free to reach out to us at hello@csspeeper.com

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Nimagamebaz Sep 21, 2025

Not Working

1 out of 2 found this helpful
Replier's profile picture
Dawid Młynarz Developer Sep 22, 2025

Sorry it’s not working for you! Please reach out to us at hello@csspeeper.com so we can help troubleshoot and get you set up.

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Sajad Safari Sep 17, 2025

It doesn't work...

2 out of 4 found this helpful
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Dawid Młynarz Developer Sep 22, 2025

Sorry it’s not working for you! Please reach out to us at hello@csspeeper.com so we can help troubleshoot and get you set up.

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The Exceptional Sep 10, 2025

Very Good

1 person found this review to be helpful
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Dawid Młynarz Developer Sep 22, 2025

Thank you for the feedback!

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Benjamin Chavez Sep 9, 2025

As a developer I don't mind paying for a good piece of software, but I don't particularly enjoy paywalled features and adds being thrown in my face the entire time. Seems like a decent extension, but it felt really spammy to me.

2 out of 2 found this helpful
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Dawid Młynarz Developer Sep 22, 2025

Thank you for your honest feedback!

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Mason Gray Aug 26, 2025

Works great.

1 person found this review to be helpful
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Dawid Młynarz Developer Sep 22, 2025

Thank you for the kind words! We’re glad CSS Peeper is helping you work more efficiently.

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Sophia Jenkins Aug 26, 2025

Essential for Web Creatives.

1 person found this review to be helpful
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Dawid Młynarz Developer Sep 22, 2025

Thank you for the kind words!

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David H Aug 25, 2025

Be careful, this plugin installs spyware and inserts affiliate links.

1 person found this review to be unhelpful
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Dawid Młynarz Developer Aug 26, 2025

CSS Peeper does not inject any spyware, we only need DOM access to properly inspect styles. The affiliate piece is our GiveFreely integration, which supports charities (you can opt out anytime with one click). It’s a way to make a positive impact, and we’re proud to be on track to raise over $250,000 USD for charity this year with support from 99% of our users. If you’d like us to check your case, feel free to reach out at hello@csspeeper.com.

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