A Chrome extension that reads any Reddit thread, generates context-aware comment drafts with tone controls, and types them out naturally. Build karma faster without spending hours writing replies.
No credit card required • Free for 3 days • Cancel anytime
Watch Karma Builder generate context-aware comment drafts and type them into Reddit threads in real time.
Get the ExtensionCheck if your Reddit account is publicly visible, or if it might be restricted or suspended. (We do not store your data)
Context-aware AI drafts, tone matching, and natural typing — everything you need to write better Reddit comments in less time.
Reads the full thread — post title, body, and comment hierarchy — so every draft is relevant to the actual conversation happening.
Generates three unique replies with different angles and perspectives, so you can pick the one that fits best.
Four tone presets — Professional, Casual, Concise, Friendly — that adapt your reply to match the community's communication style.
Comments are typed character by character with realistic timing and natural pauses. Not pasted — actually typed into the reply box.
Reply to top-level posts, nested comment threads, or deep reply chains. The extension works wherever you are in the conversation.
Your Reddit session and cookies stay completely isolated from AI processing. Comment generation runs through encrypted proxy servers.
Three steps from opening a Reddit thread to posting a relevant, well-written comment.
Navigate to any Reddit thread and activate Karma Builder. It reads the post, parent comments, and existing replies to understand the full context of the conversation.
Review three AI-generated drafts, each with a different angle. Adjust the tone, edit the text, or regenerate until you have something you're happy with.
Hit 'Type It' and the comment gets typed into Reddit's reply box with natural keystroke timing. It looks and behaves exactly like you typed it yourself.
Reddit karma is your reputation score. Every time someone upvotes your post or comment, it goes up. Downvotes subtract from it. There are two types — post karma and comment karma — tracked separately on your profile.
Hundreds of popular subreddits set minimum karma thresholds. If your karma is too low, AutoModerator silently removes your posts and comments. You need karma to actually participate in most communities.
Comment karma builds faster and more predictably than post karma. A well-timed reply on a rising thread can pull in dozens of upvotes with relatively little effort compared to submitting original posts.
Building karma manually means finding the right threads, writing thoughtful replies, and doing it consistently. That's where Karma Builder comes in — it handles the writing so you can focus on picking the right conversations.
Real reviews from the Chrome Web Store.
"The generated responses are surprisingly relevant."
Agbeke Mariam
"Comments feel natural, not robotic at all."
Bashir Seleem
"I like that I can edit everything before posting."
Dawud Samad
"The tone customization is really useful."
Awal Olalekan
"Saves me a lot of time when replying to posts."
Tohyeeb Badmus
"This makes engaging on Reddit so much easier."
Mubarak Lawal
"Helps me contribute more meaningful replies."
Alo Boluwatife
"Good balance between automation and control."
Abiola Begood
"Very simple and easy to use."
Official Ayomide
"Helps me stay active on Reddit without overthinking replies."
Ibikunle Christana
Try everything free for 3 days. No credit card needed.
After 3-day free trial
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