September 23, 2026 · Carousai Team
How to Make an Instagram Carousel: Sizes, Copy, and Design
A strong carousel is a short, swipeable story: a clear cover, one idea per slide, and a useful conclusion. This workflow takes you from the initial idea to a post that is ready to publish.
Choose the right size
| Format | Canvas size | Best use |
|---|---|---|
| Portrait 3:4 | 1080 × 1440 px | The tallest supported format, providing the most feed space for readable copy and visuals. |
| Portrait 4:5 | 1080 × 1350 px | The classic portrait option for existing assets and older templates. |
| Square 1:1 | 1080 × 1080 px | Useful when your source material is square or you want a versatile asset. |
Why 3:4 is useful: it is taller than 4:5, occupies more of a phone screen, and gives typography, photos, and infographics more room. Carousai can create the entire carousel in 3:4 without resizing every slide manually.
Tip: keep every slide in the same aspect ratio. Check the platform's current publishing limits before exporting because product interfaces and limits can change.
1. Define one promise
Before opening a design tool, decide what the reader will know or be able to do by the final slide. “Marketing thoughts” is too broad. “Five ways to get your first leads without an ad budget” gives the carousel a clear job.
2. Write the cover first
The cover should be understandable in a second. Lead with a concrete benefit, a question, or a recognizable problem. Avoid long subtitles and tiny text.
3. Turn the idea into slides
A reliable structure is: cover, context, several steps or examples, a brief conclusion, and one next action. Keep one main idea on each slide so readers never have to decode a wall of text.
4. Design for a phone screen
Use a short heading, a few supporting lines, and generous spacing. Preview every slide at normal phone size. If the copy needs zooming, simplify it.
5. Keep the visual system consistent
Choose one or two typefaces, a limited palette, and a repeatable layout. Variation keeps the carousel lively, but the typography and spacing should make every slide feel like part of the same post.
6. Export and review the sequence
Export high-quality images, keep the files in order, and swipe through the complete set before publishing. Look for repeated points, sudden changes in text density, and elements that sit too close to the edge.
Create the first draft with AI
Carousai’s online carousel maker can turn a topic or existing draft into a slide sequence in 3:4, 4:5, or 1:1. You can then choose a template, adjust the visual style, add media, and edit every line before export.
Create a carousel in minutes
Turn a topic into structured, editable slides in Carousai.
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