Generate Replies That
Build Your Audience
Paste any post, pick a tone, and get three replies written for the platform you are actually on. Free, no sign-up, and built for people who use replying as a growth channel rather than a chore.
Comment Generator
Stand out in the comments
TikTok
Comment Generator
Get pinned, go viral
Twitter / X
Reply Generator
Build your presence in threads
Comment Generator
Grow your professional network
Threads
Reply Generator
Join the conversation
YouTube
Comment Generator
Connect with creators
Bluesky
Reply Generator
Engage the Fediverse
Comment Generator
Build community connections
Bolta writes your replies in your brand voice, automatically — and waits for your approval before posting.
You just used the AI Reply Generator. That was one output. Bolta does this every day, on schedule.
Why replying is the cheapest reach a small account has
Posting asks strangers to find you. Replying puts you inside an audience that already exists — the one reading the post you responded to. On every platform in this list, a reply that gets liked, answered by the author or pinned is seen by people who have never heard of you, at zero cost and with none of the lead time a content calendar requires.
The conversion, though, happens on your profile rather than in the thread. That is the part most people skip. A reply's only job is to be good enough that someone taps your name; whatever they find there decides the rest. If your profile does not make it obvious what you do and who you do it for, more replies will not help you.
What separates a reply that works from one that doesn't
Good replies carry information. They add a number, a first-hand result, a correction, or a genuine question the author would enjoy answering. Bad replies restate the post in different words — and because agreement without new information is invisible to readers, it tends to be invisible to ranking systems too.
The second thing that separates them is fit. A four-sentence LinkedIn comment and a nine-word TikTok comment are not the same craft: one is a small essay published to your own network, the other is a one-liner competing for the top slot in a section that moves faster than the video did. That is why this tool has a page per platform instead of one generic box — the character budget, the tone, and the thing that gets you filtered are all different.
Timing does more work than volume. Most platforms decide how far to push a post in its first hour, and comments landing inside that window both get seen by the author and accumulate the likes that keep them near the top for the life of the post. Five early, considered replies beat fifty late ones, and the fifty-a-day pattern is exactly what spam systems are tuned to catch.
How to use the generated replies
Treat the three options as first drafts with the structure already solved. Pick the angle that is true for you, then put something only you could have written into it — the client situation, the number, the year you learned it the hard way. That specific detail is what earns a profile click, and it is the one thing a generator cannot supply.
Then cut. Generated text almost always ends with a sentence that summarises the sentences above it; delete that one. Delete rhetorical questions aimed at nobody. And never paste an unedited draft into Reddit or Bluesky, where audiences are unusually quick to name it — being called out for an AI comment costs more than the comment could ever have earned.
Pick your platform
Each platform page above runs the same generator with that platform's character limit and tone presets, plus the specifics worth knowing before you post: how replies get distributed, what gets filtered, and the mistakes that quietly cost you reach. Start with the one platform where your customers already spend time rather than spreading across all twelve.
Ready to stop drafting these by hand?
Bolta's AI comment responder answers the comments on your own posts in a voice profile learned from your writing — and waits for your approval before anything goes out.
Reuse It Intentionally
Adapt your core content for multiple formats, angles, and platforms instantly.
Automate Future Schedules
Build a consistent posting plan that stays active even when you're busy.
Turn It Into a Loop
Put your content on autopilot with automated variations and recurring schedules.
How Bolta is Different from Other Generators
Other tools stop at generation. Bolta is built for systems and scale.
| Feature | Other Tools | Bolta (System) |
|---|---|---|
| Output Type | One-off outputs | Reusable content assets |
| Workflow | Manual repetition | Automated content loops |
| Focus | Idea-focused | System-focused |
| Continuity | Output ends here | Output feeds a system |
Frequently asked questions
What is an AI reply generator?
Which platforms does this reply generator support?
Is this comment reply generator free?
Can it work as an auto reply generator for my own comments?
Will people know the reply was written by AI?
How many replies should I be writing a day?
Does replying to other people's posts actually grow an account?
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See how Bolta stacks up against the tools you're already considering.
Done with one-off tools? Our AI agents handle this automatically, 24/7.
Bolta's AI agents learn your brand voice, create a full week of content, and publish across LinkedIn, X, Instagram, and Threads — automatically. Join 5,000+ creators.