30 Seconds of Knowledge
Become a better developer, in every new tab.
30 Seconds of Knowledge Alternatives
The best 30 Seconds of Knowledge alternatives based on verified products, community votes, reviews and other factors.
Latest update:
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Automatically change the user agent after specified period of time to a randomly selected one, thus...
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Chameleon is a Firefox extension to Spoof your browser profile.
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Ensure healthy website performance, uptime, and free from vulnerabilities. Automatic checks for SSL Certificates, domains and monitor issues with your websites all from one console and get instant notifications on any issues.
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spoofs browser's User-Agent string.
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Bite-sized learning cards for product managers
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Greasemonkey compatible script manager.
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Explore a new line of code every day
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See an amazing code demo on every new tab
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Track the most active Bitcoin Core developers 🛠️
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Compile UI Mockups to React Code
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The Bible for Bitcoin
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Popular and efficient blocker for Chromium, Chrome, Edge, Firefox, Opera, Safari, Thunderbird.
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Download User-Agent Switcher for Firefox. Easily override the browser's User-Agent string
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Privacy tool for transparency and control