# Chrome DevTools & Firefox DevTools ## ChromeDevTools - [devtools.chrome.com](https://devtools.chrome.com) - [Port of Firefox's JSON Viewer](https://chrome.google.com/webstore/detail/json-viewer/efknglbfhoddmmfabeihlemgekhhnabb) - [twitter.com/ChromeDevTools](https://twitter.com/ChromeDevTools) - In @ChromeDevTools Network, the Copy menu is powerful for replaying network requests. Copy as Fetch API code, cURL and a Node.js fetch that includes cookie data:
[![Jenkins Is The Way](images/chrome_devtools_replay_network_request.jpg)](https://twitter.com/addyosmani)
## Firefox DevTools - [Firefox DevTools](https://developer.mozilla.org/en-US/docs/Tools/Tools_Toolbox) - Tip: Firefox has a really nice JSON viewer built in. Transforms JSON files (and API responses) into an easy to browse & search tree.
[![firefox viewer built in](images/firefox_json_viewer_built_in.jpg)](https://developer.mozilla.org/en-US/docs/Tools/Tools_Toolbox)
## Other Tools - [jsontoolbox.com](https://jsontoolbox.com/)