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Refract / Reels caption generator

Free tool

Instagram Reels caption generator

Type your idea and get two ready-to-post Reels captions, with hashtags and a character count. Free, with no sign-up.

How it works

01

Type your idea

Describe the Reel in a few words.

02

Pick and edit

Copy a caption as it is, or change a line so it sounds more like you.

03

Post it

Paste it under your Reel. The count shows you’re within Instagram’s limit.

How to write a Reels caption people read

A good caption gives people a reason to tap “more”, comment, or save. A few simple habits help.

  1. Put the point in the first line.

    Instagram shows only the start of a caption before “more”, so the first line has to earn the tap.

  2. Write short lines.

    Break the caption into short lines with space between them. It reads faster on a phone.

  3. Use a few relevant hashtags.

    Pick a handful of specific hashtags that describe the Reel instead of a long block of broad ones.

  4. End with an easy question.

    Ask something quick to answer, like which option they’d pick. It gives people a reason to comment.

  5. Keep your own voice.

    Captions that sound like you build trust. Refract can match your length, emoji habits, and sign-off.

Questions

How long can an Instagram Reels caption be?

Up to 2,200 characters. Every caption here shows its count so you can stay well under it.

How many hashtags should I add?

A few relevant hashtags are easier to read than a long block. In the Refract workspace you choose how many it adds, from 0 to 5.

Is this caption generator free?

Yes. It runs in your browser with no account and no limit.

Can I write for TikTok and YouTube from the same idea?

Yes. The Refract workspace writes a version for each app from one idea and plans your week.

Write for every app at once.

The workspace turns the same idea into TikTok hooks, YouTube Shorts titles, and a weekly plan.