How to Find New Reddit Posts, Search by Keyword and Generate AI Replies automatically

Reddit is one of the best places to discover real conversations about almost any topic. There are active communities for software, WordPress, technology, music, karaoke, business, gaming, marketing, Android apps and thousands of other subjects.

The problem is that finding the right discussions can take time. If you follow several subreddits, you normally have to open them one by one, check the newest posts and look for conversations that are relevant to you.

Sometimes you may also want to search Reddit for a specific keyword without knowing which subreddit contains the discussion.

Reddit Post Search & AI Comments is a browser extension designed to make both tasks easier. It lets you find new posts from selected subreddits, search Reddit by keyword and generate AI-assisted replies directly from a browser sidebar.

Two Ways to Find Reddit Posts

The extension is built around two simple modes.

1. Find New Posts from Selected Subreddits

If you regularly follow certain Reddit communities, you can select the subreddits you are interested in and see their latest posts together in one place.

Instead of opening several subreddit pages manually, the extension collects the newest posts and displays them directly in the sidebar.

For each post you can quickly see useful information such as:

• Subreddit name
• Post title
• Post content preview
• Number of comments
• Age of the post

This makes it easier to identify new discussions that may be worth reading or joining.

Optional Automatic Monitoring

By default, you can refresh the latest-post list manually whenever you want.

If you prefer, you can enable automatic refresh and choose how often the extension should check your selected subreddits for new posts.

Automatic monitoring is optional and disabled by default.

This can be useful if you regularly watch a few specific communities and want to notice new discussions without repeatedly refreshing Reddit yourself.

2. Search Reddit by Keyword

The second mode lets you search Reddit manually by keyword.

This search is independent of your selected subreddit list. You can enter a topic and search across Reddit for related posts.

For example, you could search for:

• WordPress plugin
• karaoke software
• PDF editor
• Android app
• video converter
• email marketing
• audio editing

This is useful when you know what subject you are interested in but do not know which Reddit community is currently discussing it.

Find and Add New Subreddits

Reddit contains many communities with similar or related topics, and it is not always easy to know their exact names.

The extension includes a subreddit search tool that lets you enter a keyword such as WordPress, software or karaoke.

Matching communities are displayed with information such as the subreddit name, description and subscriber count.

You can then add the communities you are interested in to your monitoring list.

Filter the Latest Posts

When monitoring selected subreddits, you can also use keyword filters to reduce the number of posts displayed.

For example, if you monitor several software communities but are currently interested only in discussions about PDF files, you can use a keyword filter to show only matching posts.

The filter can take both the post title and available post content into account.

For a broader search that is not limited to your monitored communities, you can simply switch to the global Reddit keyword search mode.

Generate AI-Assisted Reddit Replies

Once you find an interesting discussion, the extension can also help you prepare a response.

Reddit Post Search & AI Comments integrates with OpenRouter to generate short AI-assisted replies.

When you click Generate AI, the extension sends the post title and available post content to the selected AI model.

Using the actual content of the post is important because a title alone often does not contain enough information to understand what the author is really asking.

The generated reply appears inside the sidebar and can be edited before you use it.

Use OpenRouter for AI Replies

To use the AI reply feature, you need an OpenRouter API key.

OpenRouter allows access to different AI models through a single API. You can register for an account, create an API key and enter it in the extension settings.

The extension supports the OpenRouter Free router as the default option, so it is possible to start with models currently available through OpenRouter’s free routing service.

A supported DeepSeek model can also be selected from the extension settings.

The AI feature is used only when you explicitly request a reply.

Open a Reddit Post and Prepare Your Reply

Each result includes controls for opening the original Reddit discussion.

The Open & Paste option is designed to make replying faster. It opens the Reddit post and prepares the generated text for the comment editor.

You still remain in control of the process. The extension does not automatically submit comments.

You can review the suggested message, change it if needed and decide whether you want to publish it.

Why Use a Reddit Post Finder?

Reddit moves quickly. A useful question or discussion may receive many replies within a short period of time and then become much less visible.

Being able to quickly see new posts from several communities can therefore be much more convenient than manually browsing each subreddit.

Keyword search is useful for a different reason: it helps you discover discussions outside the communities you normally follow.

Combining both methods gives you a simple way to discover conversations from two directions: by community and by topic.

Who Can Use It?

The extension can be useful for many different types of Reddit users.

• People who follow several Reddit communities
• Software developers and indie makers
• WordPress developers
• Content creators
• Community managers
• Researchers
• Marketers researching discussions and user questions
• Users who want help writing short replies in English

It can also simply be used as a more convenient way to keep an eye on your favorite subreddits.

Free and PRO Versions

Reddit Post Search & AI Comments is available in FREE and PRO versions.

The FREE version provides the main features needed to search Reddit, monitor a limited number of subreddits, discover communities and generate AI-assisted replies using your own OpenRouter API key.

The PRO version increases the limits for users who want to monitor more communities or perform more extensive searches.

PRO includes higher limits for:

• Monitored subreddits
• Posts loaded from each subreddit
• Global Reddit search results
• Automatic refresh frequency

You can find more information about the PRO version here:

Get Reddit Post Search & AI Comments PRO

Privacy and Control

The extension does not automatically publish Reddit posts or comments.

AI-generated replies are suggestions that you can review and edit before posting.

Your OpenRouter API key and extension preferences are stored in the browser extension storage.

AI requests are sent to OpenRouter only when you choose to generate a reply.

Conclusion

There are two common ways to find useful conversations on Reddit: regularly checking specific communities or searching for a particular topic.

Reddit Post Search & AI Comments combines both approaches in one browser sidebar.

You can monitor the newest posts from selected subreddits, search Reddit by keyword, discover additional communities and prepare AI-assisted replies without constantly moving between multiple Reddit pages.

If you regularly use Reddit to follow specific topics or find new discussions, it can be a practical way to save time and keep everything organized in one place.