How to Reply to DMs on Instagram — Fast, and Automatically
Instagram DMs are where the real conversations happen — but replying to them isn't always obvious, especially once you're getting more than you can keep up with. Here's how to reply to a DM on Instagram from your phone or your computer, how to answer a specific message, and how to reply to every comment with a DM automatically.
How to reply to a DM on Instagram (mobile)
To reply to one specific message in a busy thread, press and hold that message (or swipe left on it) and choose Reply — your response is attached to it, so the other person knows exactly what you're answering.
How to reply to Instagram DMs on desktop
You don't need your phone. Go to instagram.com, log in, and click the Messages icon in the top navigation. Pick a conversation, type in the message box, and press Enter to send. Photos, links, and emoji all work the same as they do in the app.
How to reply to a story reply or a liked message
When someone replies to your story or *likes* one of your messages, it lands in your inbox as a normal DM thread — open it and reply the same way. Story replies are worth answering fast: they're some of the highest-intent messages you'll get, because the person reacted to something you just posted.
Replying to a lot of DMs? Reply automatically
Here's the real problem behind most "how do I reply to my Instagram DMs" searches: it's usually not that you don't know how — it's that there are too many to answer by hand. If those messages are coming from people commenting on your posts, you don't have to reply one by one. You can send every commenter a DM automatically, the instant they comment.
That's called comment-to-DM, and it's exactly what Reply in DM does. Someone comments on your post and instantly gets a direct message with your link, code, or file — no typing, no missed messages. You can DM everyone who comments (a catch-all rule) or only people who comment a specific keyword like "LINK". It runs on Meta's official API, so it's fully allowed and safe for your account — see is auto-DM allowed on Instagram?.
This is also why you'll often see creators reply "Answered via DM" under a comment — here's what that means.
How to auto-reply to comments with a DM
The full walkthrough is on the how it works page, and the complete comment-to-DM guide covers the strategy in depth.
Frequently asked questions
How do I reply to a specific DM on Instagram?
Press and hold the message (or swipe left on it) and tap Reply. Your response is quoted under that message so the conversation stays clear — handy in group chats or long threads.
Why can't I reply to a DM on Instagram?
The most common reasons are a message request you haven't accepted yet (open the Requests folder and tap Accept), a restricted or blocked account, or a temporary app glitch — close and reopen Instagram, or try instagram.com on desktop.
How can I reply to every commenter's DM automatically?
For DMs triggered by comments on your posts, a comment-to-DM tool like Reply in DM sends the reply automatically the moment someone comments — free, unlimited, and using Meta's official API. Set a catch-all or keyword rule once, and every commenter gets an instant DM.
The bottom line
Replying to a DM on Instagram is simple on both mobile and desktop — tap the messages icon, open the thread, and send. But if you're drowning in messages from people commenting on your posts, the faster answer is to automate it: comment-to-DM sends every commenter a reply instantly, for free, without you touching the keyboard.