Instagram caption limits checker
Paste or write a caption. The counters update as you type and turn red when you pass Instagram’s published limits: 2,200 characters, 30 hashtags and 20 @ mentions.
Your caption
Preview of your first line
The feed shows the start of a caption and hides the rest behind “more”, so put the hook first. How much shows depends on the device.
Instagram caption limits
| Limit | Value |
|---|---|
| Caption length | 2,200 characters |
| Hashtags | 30 |
| @ mentions (tags) | 20 |
| Images or videos per carousel post | up to 10 items (Postline setting) |
Instagram documents these limits for posts published through its official API, which is how Postline publishes. Emoji count as one character here, as Postline counts them.
Questions and answers
How many characters can an Instagram caption have?
2,200 characters, per Instagram’s content publishing API.
How many hashtags can I use on Instagram?
Up to 30 per post. Instagram rejects posts with more through its API.
How many accounts can I @ mention?
Up to 20 @ tags per caption, per the same API reference.
Is my caption stored?
No. Counting happens in your browser; nothing is sent to our servers.
Sources
- Instagram Platform: IG User Media (content publishing) reference (Meta for Developers), last checked 2026-10-27. Caption max 2,200 characters, 30 hashtags, 20 @ tags. Reels: MOV/MP4, H.264 or HEVC, 23–60 fps, max 1920 px wide, aspect 0.01:1–10:1 (9:16 recommended), 3 s–15 min, max 300 MB.