Free Reddit Comment Generator
A Reddit comment generator, used right, is not a tool that posts on your behalf. It is a set of templates for drafting comments that read like the person who wrote them actually read the thread. Comments matter more than most founders think: before you ever put up a launch post, most of your visible Reddit activity should be genuine comments, not promotional posts, because comments are what build the account history and ratio that let a promotional post survive later. An account with weeks of real, on-topic comments reads as a participant. An account with no comment history and one launch post reads as a drive-by.
What separates a comment that reads as human from one that reads as a bot is not whether AI touched it, it is the shape of it: how specific it is to what the original poster actually said, whether it commits to an opinion, and whether it stops before pivoting to a product. Reddit’s comment length cap is 10,000 characters, far more room than a real answer needs. The templates and rewrites below are built for that reality: short, specific, and finished before they start selling anything.
TL;DR
Comments are the prerequisite, not a side activity
Reddit retired the old 9:1 self-promotion guideline as any kind of official, enforced policy. There is no dashboard, no published percentage, and no site-wide rule that computes your ratio for you. What is left in its place is an operative principle that moderators and AutoMod configurations still lean on constantly: be a genuine participant, not just a promoter. That is judged holistically, by looking at your history, not by any fixed formula.
Comments are how that history gets built. A promotional post counts the same as a promotional comment when someone is judging whether an account looks like a participant, but non-promotional comments are almost always the majority of a real account’s activity, simply because commenting is what people spend most of their time on Reddit doing. Spend the weeks before a launch answering questions, sharing what you know, and disagreeing with things in your target subreddits, with nothing to sell in any of it. That is the activity that makes a launch post two months later look like it came from a member of the community instead of a stranger who showed up to drop a link.
None of this requires a fixed number of comments or a specific schedule. It requires comments that would stand on their own even if you never launched anything, written in a voice that does not give away that they exist to pad a ratio.
Reddit's daily active unique visitors as of Q4 2025, up 19% year over year. That is the pool of people who might read a given thread, which is why the comments you leave in it are worth writing carefully.
View the Reddit usage data (Business of Apps)Drafting your launch post later? Start here.
Once your comment history is where it needs to be, describe your product and the subreddit you're posting in, and get a title, a full draft in that community's voice, and removal-risk warnings before you paste anything into Reddit.
Title options
Four things that make a comment read as a bot
None of these require AI to happen. Plenty of humans write comments with all four tells. They are just the patterns that pattern-matching readers, human or automated, key on first.
Generic praise that fits any comment on any post
“This is such a great point!” or “Love this, thanks for sharing!” as an opening line. It could sit under literally any post in the subreddit and nothing would read wrong, which is exactly the problem. It signals the writer skimmed the title and moved straight to typing.
Cut the compliment entirely and respond to the actual claim in the post. If you genuinely liked something specific, name the specific thing (“the part about switching vendors mid-contract matches what happened to us”), not the fact that you liked it.
Restating the post back to the poster
“So what you're saying is that pricing was the main blocker.” People do not need their own post summarized to them. It reads as a comment written by something that processed the text rather than someone who read it and had a reaction.
Skip the summary and go straight to the new information: your answer, your experience, your disagreement. If you need to reference part of the post, quote the specific line you are responding to instead of paraphrasing the whole thing.
A tone that is more formal than the thread around it
Full sentences with no contractions, semicolons in a casual thread, “furthermore” and “in conclusion” in a comment reply. Reddit threads run on fragments, contractions, and the occasional dropped word, and a comment that reads like a memo stands out immediately.
Write it the way you would say it out loud to a colleague, then trim it. Contractions are fine. Starting a sentence with “and” or “but” is fine. A short fragment as its own line is fine.
An instant pivot to a product, yours or anyone's
“Have you tried [Product]? It solves exactly this.” dropped into a comment that otherwise adds nothing else. Even when the tool is genuinely relevant, leading with the pitch and skipping the actual answer is the fastest way a comment gets read as an ad wearing a comment costume.
Answer the question fully first, with zero mention of any product. Only bring up a tool, yours or someone else's, if it is directly relevant, disclosed plainly, and a small part of a longer answer rather than the whole comment.
Five situations, five skeletons
Copy the skeleton, replace the bracketed parts with your own specifics, then read it out loud once before you post it. Every example below is short on purpose, well under the 10,000-character comment cap.
Answering a question
The most common comment you will write. The skeleton below skips the compliment and the summary and goes straight to an answer with a reason behind it.
[Direct answer in one sentence]. [Why, from your own experience, in one to two sentences]. [Optional caveat: "depends on X" or "worked for us, might not for a bigger team"].
We ended up going with a flat monthly fee instead of usage-based. Usage-based made sense on paper but our customers hated not knowing their bill in advance, and support tickets about pricing dropped once we switched. Might be different if your usage is more predictable than ours was.
Sharing your own experience
For threads that are not a direct question but invite people to add their own story. Lead with the specific detail, not a general statement.
[One specific detail from your own situation, not a general claim]. [What happened as a result, in plain terms]. [What you would do differently, if anything].
We launched on a Tuesday morning instead of a Monday because our target subreddit is dead until midday. Traffic was slower to start but the thread stayed active for two extra days instead of dying by evening. I would probably still test a weekend for a more casual sub next time.
Respectfully disagreeing
Disagreement reads as bot-written fastest when it is either too soft (“interesting perspective, though I might see it differently”) or too flat. State the disagreement plainly, then say why.
[State the disagreement directly, no hedge]. [The specific reason, tied to your own experience or a concrete example, not a general principle].
I don't think that's true for B2B, at least not in our case. We tried the free-forever tier for six months and it mostly attracted people who were never going to pay. Cutting it to a 14-day trial actually raised our conversion rate, not lowered it.
Adding a resource
For when you genuinely have something useful to point to, a thread, a tool, a write-up. Say why it is relevant before you drop the link, not after.
[The specific piece of the post this resource answers]. [Name of resource] covers this in more detail: [link or plain description if no link allowed]. [One sentence on what it actually says, not just that it exists].
On the karma question specifically, there's a good breakdown of which subreddits actually enforce a minimum versus which just say they do. It's a comment thread further down in r/startups from a few months back, worth a skim if you're deciding whether to wait it out or just post.
Following up on your own post
Replying to comments on something you posted. The risk here is repeating your own pitch in every reply. Answer the specific question each person asked instead.
[Answer to the specific question this person asked, not a repeat of your post]. [One new detail you have not already said elsewhere in the thread].
Good question, we're on Postgres, not Mongo, mostly because the reporting queries got painful once we had more than a few thousand users. Happy to go into the schema if that's useful, it's not too different from what you're describing.
Same point, rewritten
Each row says roughly the same thing. Only the shape changed.
| Bot-sounding | Human |
|---|---|
| This is such a great question! I think the answer really depends on your specific use case. | Depends on your traffic. Under a few thousand visits a month, the free tier covers it. |
| So it sounds like you're trying to decide between building in-house versus using a third-party tool. | We built in-house first and regretted it. Took three months we didn't have. |
| Have you considered checking out [Product]? It might be exactly what you're looking for! | There's a free tool that does this specifically, worth a look if you don't want to build it yourself. |
| I completely agree with your assessment; however, I would like to offer an alternative viewpoint. | Disagree, actually. We tried that and it made onboarding slower, not faster. |
| Thank you for sharing this valuable information with the community! | Didn't know that about the karma threshold, good catch. |
| In conclusion, self-promotion should be balanced with genuine community participation. | Mostly just comment for a few weeks before you post anything with a link in it. |
| This resonates with my own experience as well, thank you for bringing this up! | Same thing happened to us in April, took two weeks to figure out it was AutoMod, not a shadowban. |
The whole approach, in two columns
Do
Don’t
When not to mention your product in a comment
The templates above are built to work with zero product mention in them, because that should be the default state of most comments you write. These are the situations where mentioning it anyway does the most damage.
The question was not about tools at all
If someone asks how you priced your product, answer the pricing question. Do not use it as an opening to name the tool you use to write posts. A comment that answers one question and mentions a product anyway reads as an ad wearing an answer as a disguise.
You have not built any comment history in that subreddit yet
A first comment that happens to mention a product looks identical to a first comment from an account created to drop that exact product. Spend real comments with nothing to sell in them first, then the occasional relevant mention reads as a person, not a pattern.
The subreddit explicitly restricts a category of tool
Some subreddits ban promotion of specific tool categories outright, not just off-topic promotion in general. Check the sidebar rules for your specific category before assuming a relevant mention is automatically welcome just because it answers the question.
You already mentioned it once in that thread
One relevant mention, disclosed, in a longer answer, can be fine. A second mention in a different reply on the same thread starts to look like repetition for its own sake, and repetition is what spam filters and mods both notice fastest.
How the Reddit Post Generator fits into this
This tool is tuned for posts, not automated comments, and it does not post or reply on your behalf. But the instincts it applies to a post, matching a specific subreddit’s voice, cutting anything that reads like ad copy, flagging what is likely to get removed, are the same instincts behind every template above. Use the templates by hand for your comments, since genuine comments have to come from you. Then, once your comment history is where it needs to be, use the generator to draft the launch post itself: a title, a full body in that subreddit’s voice, and removal-risk warnings before you ever paste it in.
If you only take one thing from this page
Answer first, sell never, unless it is directly relevant. A comment that opens with an answer and closes without a pitch reads as a person. A comment that opens with praise and closes with a link reads as an ad, no matter how it is worded in between.
Comments come before posts. The weeks of genuine commenting are not a warm-up exercise, they are the thing that makes a later launch post look like it came from a real member of the community instead of a stranger with a link.
How comments earn karma on Reddit
Reddit comments, answered
What is the character limit for a Reddit comment?
10,000 characters, for both top-level comments and replies. That applies equally to a first comment and a reply nested ten levels deep. Almost no genuine comment needs anywhere close to that much room, which is itself a signal: a comment padded out to look thorough often reads worse than a short, specific one.
Is it against Reddit's rules to use a comment generator or template?
There is no rule against drafting a comment with help before you post it, since a comment is judged by what ends up on the page, not by how it was drafted. What gets comments removed or accounts flagged is content that reads as generic, repetitive, or promotional, not the fact that a template was involved in writing it.
How many genuine comments should I write before my first launch post?
There is no official number, since Reddit does not publish or enforce a fixed ratio. The operative principle mods and AutoMod configurations lean on is being a genuine participant, judged holistically over your account's recent history. Weeks of real commenting with nothing to sell, rather than a specific count, is the safer target.
Do bot-sounding tells matter even if a human wrote the comment?
Yes. Generic praise, restating the post, an over-formal tone, and an instant product pivot all read the same way regardless of whether AI touched the text. These are shape problems, not authorship problems, which is why fixing them works whether you typed the whole thing yourself or used a template as a starting point.
Can I use the same comment template on multiple threads?
Use the same skeleton, never the same filled-in comment. Posting a near-identical reply across several threads is one of the clearest repetition patterns spam filters and mods notice, even if each individual comment reads fine on its own. Fill in a fresh, specific answer for each thread.
Should I disclose that I built the product I'm mentioning in a comment?
Yes, plainly, at the start or end of the mention. Several founder-adjacent subreddits require exactly this, and even where it is not an explicit rule, an undisclosed mention that later reads as self-interested tends to do more damage to an account's credibility than a disclosed one ever would.
What's the difference between this page and the comment-marketing guide?
This page is templates: copy-paste comment skeletons for five specific situations, ready to fill in and use. The companion guide, how to write Reddit comments that don't sound like a bot, covers the broader tactics and strategy of comment marketing over time. Read that one for the why, use this one for the what to actually type.
Does a comment generator write and post the comment for me?
No, and be wary of anything that claims to. A tool can help you draft the wording, but a comment posted by an automated account rather than a real person is the exact pattern spam filters and moderators are built to catch. Draft with help if that's useful, but post it yourself, in your own voice, from your own account.