Run it for what it does
Fire-and-forget scripts for side effects: clear storage, toggle a flag, fill a form, log some state.
localStorage.clear();
sessionStorage.clear();
location.reload();Your scripts, one click away on every page.
dev-probe is a sidebar for Chrome that holds the little scripts you keep pasting into the console. Run one on any page, copy what it returns, or show the result right in the sidebar.
A free Chrome extension. No account, no sign-up.
A widget is a few lines of JavaScript.
Write the script once and it sits in the sidebar on every site. It runs in the page’s own context, so it can reach the DOM, storage and anything the page keeps on window.
Get auth token · Clipboard
// copy the token the app keeps in storage
const raw = localStorage.getItem('auth');
return JSON.parse(raw).accessToken;Page info · Textbox
return JSON.stringify({
title: document.title,
path: location.pathname,
users: window.__STATE__.users.length,
}, null, 2);Three kinds of widget.
Each widget decides what happens to the value its script returns: nothing, the clipboard, or a text box in the sidebar.
Run it and copy the result
Whatever the script returns lands on the clipboard. Handy for tokens, ids and anything you paste somewhere else.
return document.cookie;
// → copiedRun it and read the result
The return value shows up in a text area inside the sidebar, for objects, headers and state you want to look at.
return JSON.stringify(
window.__STATE__, null, 2
);Everything you need, nothing you don’t.
⚡
One click to open
Click the toolbar icon and the sidebar slides in next to the page. Click again and it’s gone. No reload.
{ }
Runs in the page
Scripts see the page the way its own code does: the DOM, localStorage, cookies and globals.
⎘
Clipboard in one step
Run & copy puts the return value on the clipboard, so a token is one click from your terminal.
▤
Results inline
Textbox widgets show their output in the sidebar, so you can read a value without opening DevTools.
⇅
Drag to reorder
Put the widgets you use most at the top. Drag one by its handle and drop it where you want it.
⇄
Import and export
Save your widget library as JSON to share with your team or bring it to another machine.
◐
Follows your theme
Light or dark, the sidebar matches your system setting. There is nothing to configure.
∅
No account
Install it and start writing widgets. There is no sign-up and nothing to log in to.
From install to your first widget in a minute.
No setup, no project to configure. The sidebar is empty until you give it something to do.
Install
Add dev-probe to Chrome. There is no account to create.
Open the sidebar
Click the dev-probe icon in the toolbar on any page. The sidebar slides in next to it.
Add a widget
Press +, pick a kind, name it and write the script it should run.
Run it
Run, Run & copy or Run & fill. It’s there on every page you visit.
Get dev-probe
dev-probe is free, for Google Chrome. It’s on its way to the Chrome Web Store.
Looking for more? See the other extensions and apps.