Answers before you install ZyDevKit
A practical guide to browser support, privacy boundaries, permissions and how the debugging tools behave in real work.
Install ZyDevKitLocal-first
History, colors, saved requests and settings stay on your device.
Multi-browser
Chrome, Edge, Firefox, Safari, packaged ZIP and Windows builds are supported.
Toolbox model
Use the current module only when you need it; high-risk permissions are requested on demand.
01What is ZyDevKit for?
ZyDevKit is a browser developer toolbox for day-to-day front-end debugging: color picking, responsive previews, UA simulation, API requests, CORS checks, response header inspection, JSON tools, export utilities and more.
02Which browsers are supported?
The extension is built for Chrome, Edge, Firefox and Safari. The project also produces ZIP packages and Windows/Safari artifacts so teams can distribute builds outside a store workflow when needed.
03Does ZyDevKit upload page content?
No. ZyDevKit is designed as a local-first tool. Saved colors, request history, collections, environments and settings are stored locally in the browser extension storage.
04Why does the API debugger work when a page fetch is blocked by CORS?
The API debugger sends requests from the extension background context for inspection. It helps you debug the endpoint, but it does not change what your website's own JavaScript is allowed to call under browser CORS rules.
05When are permissions requested?
ZyDevKit asks for higher-risk capabilities only when a feature needs them, such as reading active tab details, capturing a page for the magnifier or inspecting site storage/cookies.
06Can I move API requests between devices or teammates?
Yes. API environments and request collections can be exported and imported as JSON, which makes it easier to share repeatable debugging setups.
07What changed in the latest release?
Recent updates added multi-environment API debugging, import/export, JSON tree views, a zoomable color magnifier with pixel coordinates, colored response header KV rows and batch contrast checking.