LinkedIn Auto Commenter

PhantomBuster's LinkedIn Auto Commenter automatically posts thoughtful comments on targeted LinkedIn posts, helping you build relationships, boost reach, and support your network. Set it up once, run it on repeat, and export a full record of every comment.

Check out the Tutorial for step-by-step setup.

Important: The LinkedIn algorithm is sensitive to comments and by commenting on your connections' posts, you'll give them much more reach and visibility. Use this Automation to stay engaged consistently, even when you're short on time.

What you give / What you get

You provide the posts and comments. PhantomBuster delivers consistent engagement and a full activity log you can track.

In short, you bring the posts and messages. PhantomBuster handles consistent engagement and gives you full tracking.

What you can automate with the LinkedIn Auto Commenter

Here's what PhantomBuster's LinkedIn Auto Commenter Automation can do automatically for you:

• Post comments on a curated list of LinkedIn posts, articles, or publications

• Randomize comment selection when you provide multiple options, so engagement looks natural

• Control comment volume by specifying the number of posts to process per launch

• Set the Phantom on repeat to maintain consistent visibility across your network

• Export full comment logs with timestamps to track engagement activity

• Integrate with Google Sheet to manage post URLs and comments in one place

Perfect for sales teams automating LinkedIn engagement, community builders supporting their network, and growth teams staying visible without manual effort.

How teams use the LinkedIn Auto Commenter

Sales reps, community managers, and growth professionals use the LinkedIn Auto Commenter to stay visible, build relationships, and support their network on autopilot.

• Relationship nurturing: Comment regularly on key accounts' and prospects' posts to stay top-of-mind before outreach.

• Thought leadership support: Amplify your connections' reach by engaging with their content consistently, strengthening reciprocal relationships.

• Community engagement at scale: Support members of your LinkedIn group or industry community by commenting on their posts without manual effort.

• Pre-outreach warm-up: Engage with target prospects' posts before sending a connection request or message, making your outreach feel more contextual.

• Event and launch visibility: Comment on posts related to your product launch, webinar, or industry event to increase visibility and engagement signals.

How to build an auto-commenting sequence

Create your commenting workflow in four steps. Write your comments, identify the posts you want to engage with, connect them in a Google Sheet, and let the Automation run.

1. Write out as many comments as you like. Authentic, thoughtful comments perform best.

2. Find the LinkedIn posts you want to comment on. You can manually collect URLs or use the LinkedIn Search Export Automation to identify users and pull their recent activity.

3. Add the URLs of these posts to your Google Sheet, with the comments in the next column. Then, share the spreadsheet link with this LinkedIn Auto Commenter Automation.

4. Launch the Automation. Specify the number of posts to process per launch, then set the Phantom on repeat to maintain consistent engagement.

Want to post random comments?
All you have to do is add multiple comments in your spreadsheet, and the LinkedIn Auto Commenter Phantom will randomly select them as it runs. This keeps your engagement looking natural and varied.

Read the LinkedIn Auto Commenter Phantom tutorial for an in-depth guide on using this Automation.

Try it free

Workflow Ideas to Get You Started

PhantomBuster Automations work best when chained into Workflows. Combine these tools to build a complete engagement system. Get started in minutes.

Workflow Example: Warm up leads before outreach

LinkedIn Search Export → LinkedIn Activity Extractor → LinkedIn Auto Commenter → LinkedIn Auto Connect

Why this works

Commenting on prospect content creates familiarity before you send a request. This approach increases acceptance rates by turning a cold outreach attempt into a warm interaction.

Who it’s for

SDRs, BDRs, and sales teams focusing on account-based marketing.

How to build it

1. Find your target prospects using the LinkedIn Search Export.

2. Pull their recent posts with the LinkedIn Activity Extractor to get post URLs.

3. Engage with those posts using the LinkedIn Auto Commenter, then follow up with a connection request using the LinkedIn Auto Connect Phantom.

Outcome

Higher connection acceptance rates and warmer initial conversations.

Workflow Example: Engage competitor audiences

LinkedIn Post Commenters Export → LinkedIn Activity Extractor → LinkedIn Auto Commenter

Why this works

Users engaging with your competitors are already interested in your industry. Engaging with their content positions you as an alternative authority figure.

Who it’s for

Growth marketers and founders looking for high-intent leads.

How to build it

1. Extract active users from competitor posts using the LinkedIn Post Commenters Export.

2. Find their recent activity with the LinkedIn Activity Extractor.

3. Auto-comment on their content using the LinkedIn Auto Commenter to divert attention and build authority.

Outcome

Targeted visibility among buyers who are actively looking for solutions in your space.

Workflow Example: Nurture key accounts automatically

LinkedIn Connections Export → LinkedIn Activity Extractor → LinkedIn Auto Commenter

Why this works

Consistent engagement keeps you top-of-mind with existing connections without manual monitoring. It strengthens relationships and encourages reciprocal engagement.

Who it’s for

Account Executives and Customer Success Managers nurturing long-term relationships.

How to build it

1. Export your current network with the LinkedIn Connections Export.

2. Retrieve their latest posts using the LinkedIn Activity Extractor.

3. Launch the LinkedIn Auto Commenter to post relevant comments automatically.

Outcome

Sustained relationship visibility and network nurturing with minimal effort.

Best practices

Get the most out of this Phantom while staying safe and compliant on LinkedIn.

• Start with authentic comments: The LinkedIn algorithm rewards genuine engagement. Write comments that add value or start a conversation, not generic reactions.

• Control your volume: LinkedIn monitors high-frequency activity. Start with 10–20 comments per day and adjust based on your account's activity history.

• Vary your comment text: Add multiple comment options in your Google Sheet so the Automation randomizes them. This keeps your engagement looking natural.

• Target the right posts: Comment on posts from your ICP, key accounts, or thought leaders in your space. Quality targeting beats volume.

• Pace your launches: Specify the number of posts to process per launch and set the Automation on repeat with spacing between runs. Avoid running back-to-back sessions.

• Monitor your account: If LinkedIn prompts you with security checks or warnings, pause the Automation and reduce frequency.

For deeper guidance on LinkedIn safety and pacing strategies, see LinkedIn Safety for Growth Teams and Navigating LinkedIn's Limits in 2025.

Frequently asked questions

Here are the most common questions about using the LinkedIn Auto Commenter, from setup and compliance to workflow integration and results tracking.

Where can I learn how to set up the LinkedIn Auto Commenter?

Start with the LinkedIn Auto Commenter tutorial, which walks through setup, Google Sheet configuration, and launch settings step-by-step. For broader automation strategy, see Ethics of Automation in Outreach to stay responsible and effective.

How does the LinkedIn Auto Commenter help with LinkedIn engagement and visibility?

The LinkedIn algorithm is sensitive to comments and by commenting on your connections' posts, you'll give them much more reach and visibility. Consistent engagement also keeps you top-of-mind with prospects and builds reciprocal relationships. Learn more about how engagement signals work in LinkedIn Engagement Signals: How to Understand and Use the Algorithm.

Is it safe to automate comments on LinkedIn?

Yes, when done responsibly. LinkedIn monitors high-frequency activity, so start with 10–20 comments per day, use authentic comment text, and space out your launches. The LinkedIn Auto Commenter Phantom will randomly select them as it runs if you provide multiple comment options, which keeps your activity looking natural. For safety best practices, see LinkedIn Safety for Growth Teams and Navigating LinkedIn's Limits in 2025.

Can I vary my comments to avoid looking automated?

Absolutely. All you have to do is add multiple comments in your spreadsheet and the LinkedIn Auto Commenter Phantom will randomly select them as it runs. This keeps your engagement varied, contextual, and harder to detect as automated.

What's the difference between the LinkedIn Auto Commenter and the LinkedIn Auto Liker?

The LinkedIn Auto Commenter posts text comments on LinkedIn posts, which generates stronger engagement signals and relationship-building opportunities. The LinkedIn Auto Liker automatically likes posts instead. Use both together for a full engagement workflow: likes for broad visibility, comments for deeper connection.

How can I build a full engagement workflow with auto-commenting?

Pair the LinkedIn Auto Commenter with complementary Automations to create a multi-step engagement sequence. For example, use the LinkedIn Activity Extractor to find recent posts from your target list, then feed those URLs into the Auto Commenter. Follow up with the LinkedIn Message Sender to start conversations after engagement. See Warm up your leads on LinkedIn before you reach out to them for a full workflow example.

How many posts should I comment on per day to stay safe?

Start with 10–20 comments per day if your account is new to automation. Established accounts with consistent manual activity can go higher, but stay below 80 per day to reduce flagging risk. Specify the number of posts to process per launch, and set the Phantom on repeat with spacing between runs. For detailed pacing guidance, see The LinkedIn Prospecting Volume Tax, and We Analyzed 10 Months of Data to Find Out Why LinkedIn Disconnects You.

Do I need technical skills to set this up?

No. The LinkedIn Auto Commenter runs entirely through your browser and a Google Sheet. You provide your LinkedIn cookie (session), add post URLs and comments to your spreadsheet, then launch the Phantom. No coding, API keys, or complex setup required. Create a free Phantombuster account and you're ready to start in minutes.

What data do I get after the Automation runs?

You'll receive a structured log that includes the Comment text, Timestamp, post URL, and profile details. Download a CSV spreadsheet or JSON file of all the LinkedIn posts you've auto-commented on for tracking, reporting, or CRM sync.

Can I use this to engage with competitor posts and convert their audience?

Yes. Extract users engaging with competitor posts using the LinkedIn Post Commenters Export, then comment on their posts to start building visibility and relationships. For a full workflow, see Reach high-intent leads from competitor posts.

Ready to try it?

Start engaging smarter today.

Try the LinkedIn Auto Commenter free. No setup or coding required. Add your LinkedIn cookie, share your Google Sheet with post URLs and comments, and launch the Phantom. Set it on repeat, and you'll maintain consistent visibility across your network without lifting a finger.