Can I turn an extension off without uninstalling it?
Yes. Install the free Sidecar panel and one toolbar icon lists every extension you have, each with its own switch. Switching one off stops it in every tab already open, with no reload. One more switch pauses everything on the site you are looking at and leaves the rest of the web alone. The extensions themselves add no icon to your toolbar, so eight of them still means one icon.
Do they work on sites like YouTube that are built from custom components?
Yes. Sites built from custom elements render their fields inside shadow roots, which retargets events and hides them from naive checks. Every Sidecar extension resolves the real element through the composed event path, and that behaviour is covered by tests that drive a real browser.
Do Sidecar extensions collect any data?
No. There is no server, no analytics, no crash reporter and no identifier attached to you. The extensions make no network requests at all, so there is nowhere for data to go even in principle.
Are they free?
Yes, every extension is free while in preview. There is no account, no trial and no payment step.
Which browsers are supported?
Chrome, Edge and Brave on macOS and Windows, using Manifest V3. Firefox and Safari builds are planned.
Do any of them connect to my bank or my accounts?
No. Nothing in the catalog links to a bank, a card, or any account anywhere. Cancel-By Reminder finds renewal dates by reading subscription wording in emails you open, which is the whole reason it exists as an alternative to finance-linked subscription trackers.
Do they use AI?
No. Every detection is deterministic pattern matching that runs locally in your browser. That keeps them fast, predictable, private and free to run, and means they behave identically every time.
Why are they not in the Chrome Web Store yet?
They are preview builds, distributed directly so they can be tested and refined before store submission. You install them with Load unpacked, which takes about a minute.
How do I install an extension that is not from the store?
Download the zip, unzip it, open chrome://extensions, turn on Developer mode, click Load unpacked and select the unzipped folder. Then reload the page you want to use it on.
Can I read the source code?
Yes. Every extension ships unminified, and the detection logic is kept in its own file separate from the browser integration, so it can be read and checked without digging.
What happens when I uninstall one?
Everything it kept locally is deleted with it. Nothing survives elsewhere, because nothing was ever stored anywhere else.
Per extension questions
Each product page answers its own.
Attachment Reminder
Does it work with Outlook or Apple Mail?
Clean Copy
Will the cleaned link still work?
Timezone Peek
Why does nothing happen when I select "3pm"?
Draft Rescue
Where are my drafts stored?
Link Destination Check
Will it interrupt normal browsing?
Draft Rot Tracker
Will it nag me every time I open Gmail?
Cancel-By Reminder
Does it need access to my bank or card?
Meeting Link Surfacer
Does it copy the link to my clipboard automatically?