Install the extension, pick who to remove, hit Remove. A few minutes of your time. The extension handles the rest in the background while you do something else.
Step 01
Install Network Cleaner from the Chrome Web Store. The app opens automatically. Click Import and the extension reads your connections straight from your existing LinkedIn session. No password prompt.
Importing takes anywhere from a few seconds to about a minute, depending on your network size. When it finishes, your full connection list is ready to browse.

Step 02
Use the search bar to find connections by name, job title, company, or headline. Add date filters to surface connections from a specific era. Then select: individual checkboxes, shift+click ranges, or select all connections matching your filters at once.
You see exactly who you've picked and how many, before anything starts.

Step 03
Network Cleaner starts working through your selection one connection at a time. Smart delays between each removal mean LinkedIn sees normal activity, not automation.
Close the tab. Do other things. Come back in a few hours to a cleaner network. Pause anytime if you change your mind.

LinkedIn gives you no bulk removal. Every connection is a separate trip: open the profile, click More, click Remove Connection, confirm. Repeat. About 10 seconds per person if you never hesitate. You will hesitate. Most people give up after 30.
Manual removal
Network Cleaner
Yes. Network Cleaner performs the exact same actions you'd make manually, one connection at a time, at a human rate. LinkedIn sees normal human behavior.
Close the Network Cleaner tab anytime. But keep Chrome open: removals only process while your browser is running. That's intentional. LinkedIn sees activity during your normal computer hours, not a bot working at 3am. Close Chrome and it pauses. Reopen it and it picks up where it left off.
Before anything gets removed, you see the full list of who you've selected. Check it over. Deselect anyone you're not sure about.
Once it starts, removals happen one by one. You can cancel anyone still waiting, or pause the whole thing, at any time. You stay in control throughout.
No matter what, Network Cleaner keeps a full history of everyone you've removed. Find them, hit reconnect, done.
Free to install. Browse and search your connections before paying anything.