Reddit Subreddit Users Scraper

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Extract all unique users from a subreddit — including post authors and comment authors — with optional full profile enrichment (karma, bio, account age, Gold/Mod status, and more).

Ideal for audience research, community analysis, influencer identification, and building contact lists from Reddit communities.

Features

• Post authors — Collects every post author from the scanned posts
• Comment authors — Optionally scans each post's comments to collect all comment authors (finds significantly more unique users)
• Deduplication — Each unique username appears only once, with a count of how many posts/comments were found
• Profile enrichment — Optionally fetches full profile data for each unique user: karma, bio, account age, Gold/Mod/Employee status
• Two-phase architecture — Phase 1 collects users from subreddit; Phase 2 (optional) enriches with profile API data
• Configurable depth — Control how many posts to scan with maxPosts
• Stealth mode — Random user agents and fingerprinting to avoid rate limits

Input Options

Example Inputs

Collect all users from recent posts and comments

{
"subreddit":"javascript",
"sortBy":"new",
"maxPosts":50,
"includeCommentAuthors":true,
"fetchProfileDetails":false
}

Collect users with full profile enrichment

{
"subreddit":"webdev",
"sortBy":"hot",
"maxPosts":25,
"includeCommentAuthors":true,
"fetchProfileDetails":true
}

Just post authors, no comments

{
"subreddit":"MachineLearning",
"sortBy":"top",
"topTime":"month",
"maxPosts":100,
"includeCommentAuthors":false,
"fetchProfileDetails":false
}

Output Dataset Fields

Example Output (without profile details)

{
"username":"some_developer",
"profileUrl":"https://www.reddit.com/user/some_developer/",
"postsInSubreddit":2,
"commentsInSubreddit":7,
"firstSeenPostTitle":"Best React state management in 2025",
"scrapedAt":"2025-06-01T12:00:00.000Z"
}

Example Output (with profile details)

{
"username":"some_developer",
"profileUrl":"https://www.reddit.com/user/some_developer/",
"postsInSubreddit":2,
"commentsInSubreddit":7,
"firstSeenPostTitle":"Best React state management in 2025",
"id":"t2_abc123",
"commentKarma":4521,
"linkKarma":892,
"totalKarma":5413,
"createdAt":"2019-03-15T00:00:00.000Z",
"accountAgeDays":2270,
"isGold":false,
"isMod":false,
"bio":"Full-stack developer",
"scrapedAt":"2025-06-01T12:00:00.000Z"
}

Related Actors

• Reddit Profile Scraper — Scrape profiles for a specific list of usernames
• Reddit Subreddit Scraper — Scrape posts from a subreddit
• Reddit Subreddit Posts Scraper — Scrape posts from multiple subreddits at once

Author

Built by Kumar Lakshmanan · lakshmanan.w3dev@gmail.com