
Pulse Secure
Flexera Software Vulnerability Manager
Tor Browser
StackPath
Avast
OneLogin
AuthAnvil
The easiest way to protect your users from getting hacked

Material UI
The ultimate directory for top UI component libraries in React, Vue, Angular, Nuxt, Svelte, Rails, Weblow, and more.

Which is more popular?
Based on our record, Castle seems to be more popular. It has been mentioned 4 times since March 2021.
Website, pricing, platforms and company facts side by side.
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| Website | castle.io | componentlibraries.com |
| Pricing | ||
| Company | — | Startup from the United States · 1 - 9 employees · 2025 |
| Listed in |
In their own words, as submitted to SaaSHub.


No description of Castle yet.
We want builders to avoid searching for the perfect UI component library for their project and scrolling through GitHub repos, outdated blog lists, or product pages that barely show what’s inside... We built ComponentLibraries.com to make finding the right component library effortless. Browse a...
What each product offers, as listed by its team.


Possible disadvantages
An editorial look at what each product does well and who it suits.


Overall verdict
Why this product is good
Recommended for
Overall verdict
Why this product is good
Recommended for
Walkthroughs and reviews on video.
How often each product is chosen within a category, 0–100% relative to the other.


As answered by people managing Castle and ComponentLibraries.
ComponentLibraries's answer:
There wasn't a single platform showcasing ALL the component libraries for any framework, let alone promoting bootstrapped independent ones, so we built one!
ComponentLibraries's answer:
Next.js, Typescript, Sanity CMS
ComponentLibraries's answer:
Component Libraries is literally the only platform showcasing all the best component libraries, besides GitHub repos, outdated blog lists, or product pages.
Share your experience with using Castle and ComponentLibraries. For example, how are they different and which one is better?
Recommendations tracked on public social media and blogs since March 2021.


This (agent detection) is now a kind of emerging space. Obviously it'll get much more important, too. Other products in the space: - Foil (https://usefoil.com/), I'm biased, a friend is building this - Kasada https://www.kasada.io/ -... - Source: Hacker News / 2 months ago
Castle (https://castle.io) | Senior ML Engineer | Senior R&D Detection Engineer | REMOTE (Europe/EMEA) | Full-time Hi HN! I’m Antoine, Head of Research at Castle. We’re a YC-backed Series A startup helping companies like Canva,... - Source: Hacker News / over 1 year ago
Tell me about the fingerprint, they using castle.io within segment.com ? Or something else? And what they watching? Source: over 3 years ago
Tracking ComponentLibraries since Feb 2025.
When comparing Castle and ComponentLibraries, you can also consider the following products.

Pulse Secure provides a consolidated offering for access control, SSL VPN, and mobile device security. Contact Pulse Secure at 408-372-9600 to get a free demo.
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A CSS Framework and a Set of React Components that Implement Google's Material Design
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Flexera Software Vulnerability Manager provides solutions to continuously track, identify and remediate vulnerable applications.
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Tor is free software for enabling anonymous communication.
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Secure Content Delivery Network, DDoS, WAF Service
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Avast security software products are developed for Microsoft Windows, Mac OS X, Android and Linux users by AVAST Software.
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