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Check your Instagram caption before you post — the editor below counts live against the 2200-character limit, shows where the 125-character “more” fold cuts your text, and flags hashtag overload.
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Every Instagram caption can hold up to 2200 characters — enough room for a short essay, a detailed product description, or a multi-point listicle. Unlike Twitter, Instagram isn't built for brevity; longer captions with genuine substance regularly outperform one-liners in saves, shares, and comment depth.
PostTruncate's Instagram caption counter tracks your character total in real time as you type, showing both your current count and how much runway you have left before the platform cuts you off. No more pasting into the app to discover you're 40 characters over at the last minute.
While the full caption can run to 2200 characters, Instagram truncates the feed display at roughly 125 characters, hiding the rest behind a "more" tap. The words before that fold are the only ones most of your audience will ever read. If your hook isn't in those first 125 characters, you're writing for yourself.
This is why the fold matters more than the total limit. A caption that buries the key message in paragraph three might as well be blank — the algorithm doesn't reward invisible engagement. The best Instagram copywriters treat the 125-character window as its own discipline: a complete, curiosity-provoking thought that earns the "more" tap.
PostTruncate's live preview renders exactly where the fold falls in your caption, so you can see at a glance whether your hook lands before the cut or disappears behind it. Adjust the opening line until the most compelling part of your caption is doing its job above the fold.
Instagram has a documented maximum of 30 hashtags per post, but there's a far more dangerous undocumented threshold: posts with more than a certain number of hashtags can fail to publish without any error message. Instagram's spam filters treat heavy hashtag stacking as inauthentic behaviour, and in the current algorithm climate, many accounts report silent suppression — the post appears to publish, but reaches almost no one.
The practical safe ceiling most creators have converged on is 5 highly relevant hashtags. Not 30, not 10 — five, chosen for genuine topical alignment rather than volume. PostTruncate's caption analyser counts your hashtags in real time and flags when you exceed the threshold, before you hit publish.
Instagram's algorithm weights saves more heavily than likes or follows because a save signals that the content was worth returning to. Captions that earn saves tend to share a common structure: a specific promise in the first line, actionable detail in the body, and a question or call to action that invites a reply.
Use PostTruncate to draft your caption, check the fold preview, confirm your hashtag count, and then copy the final text straight to Instagram — all in one pass, no toggling between apps.
Captions on feed posts, Reels, and carousels are capped at 2200 characters, and comments share the same 2200 limit. Going over simply blocks the caption, so the counter above warns you before you hit it.
Instagram collapses captions after roughly 125 characters in the feed — everything after that hides behind "more." Front-load your hook and any call to action into the first line so it lands before the fold.
You can add up to 30, but stuffing all 30 looks spammy and can suppress reach. Most creators see better results with a focused 3–5 relevant tags, and the editor flags when you pile on too many.
Yes. Emojis, spaces, and every line break count as characters against the 2200 limit — and line breaks in particular eat space fast in a structured, multi-paragraph caption.
Last updated: May 22, 2026