CORS Unblock
Enable cross-origin requests for web applications
CORS Unblock launched on April 22, 2025 with 18 votes, #1,132 of 7,818 launches that month and more than 75% of that year's launches. The site was still online in September 2026, 1 year on.
What it does
CORS Unblock is a powerful browser extension that enhances web applications by enabling controlled cross-origin requests. It provides native-like networking capabilities while maintaining security through explicit permission controls.
Does a similar job
all alternatives →- WIWill It CORS? – an automatic CORS explainer2020 · willitcors.com · ▲152
Test CORS online with our free CORS tester. Check CORS on any URL for free.
AcrossTabs – Easy communication between cross-origin browser tabs2017 · github.com · ▲107Easy communication between cross-origin browser tabs. Simplified "CORS"ing! - wingify/across-tabs
Extension-blocking domains removed by threat from other blacklists2017 · github.com · ▲614Chrome extension which blocks requests to sites which have used legal threats to remove themselves from other blacklists. - paulgb/BarbBlock
CORS Anywhere2017 · cors-anywhere.herokuapp.com · ▲3This API enables cross-origin requests to anywhere.
Let's Block It – Custom uBlock Origin Filters Made Easy2022 · letsblock.it · ▲261uBlock Origin is more than an ad-blocker, it's a general purpose content filter that can be leveraged to hide low-quality content from pages you browse. While the main filter lists can remove mailing list popups and obvious nags, the definition of low-quality content is personal, so one size cannot fit all. I used to have an ad-hoc script to render and publish a personal uBlock Origin filter list, added to all my browsers. The goal of this project is to enable more people to build such a list custom list to filter out low-quality content and nags. Chose from a list of community-maintained…
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