Carousel slide (practical)
Recommended1080×1350 4:5
Best default for Threads multi-image slides. Match every slide to this ratio.
Use in toolThreads · Image size
Threads Carousel Size
Threads carousels work best at 1080×1350 (4:5). Keep every slide on that same ratio, leave a safe margin, then download each frame.
Browser crop · stays on your device
Crop your Threads carousel slide
1080 × 1350
Add a photo to crop
Upload a slide—or try the sample—then keep faces and type inside the margin before you download.
Size specs
This is a carousel slide—not a single text-first post crop reused carelessly, and not a mixed-ratio stack. Export every slide at the same size as the first.
Publish
Export this for Threads upload.
Square carousel slide
1080×1080 1:1
Optional when the whole set is square—never mix with 4:5 in one carousel.
Use in tool| Asset | Pixels | Ratio | Notes | Action |
|---|---|---|---|---|
| Carousel slide (practical) Recommended | 1080×1350 | 4:5 | Best default for Threads multi-image slides. Match every slide to this ratio. | Use in tool |
| Square carousel slide | 1080×1080 | 1:1 | Optional when the whole set is square—never mix with 4:5 in one carousel. | Use in tool |
A swipe stack that still works next to text
Threads is text-first, but multi-image posts still swipe like a carousel. A practical 1080×1350 (4:5) habit keeps every slide tall beside the caption and avoids jump cuts when people swipe. Lock the ratio on slide 1, then export every later frame from that same preset.
A single Threads post can stand alone as one photo. A carousel is a sequence—same margins, type scale, and subject size across the set. Mixing portrait and square mid-deck feels unfinished next to clean Meta feed stacks.
Instagram carousel exports often transfer well because both surfaces lean on 1080×1350. Still re-check: Threads chrome, reply context, and avatar placement differ. Sticker-heavy IG layouts can feel cramped here.
Keep on-image type short and large. Long explanations belong in the Threads text field—not as micro-copy burned onto every slide.
Good vs weak crop
Same feed frame—keep the subject inside the margin phones actually show.
Consistent 4:5 set
- True 1080×1350 each slide
- Same ratio as slide 1
- Short on-image hook
- Detail lives in the caption
Mixed ratios or tiny type
- 4:5 then square mid-swipe
- Wall of micro text on slides
- Wide OG cards forced in
- IG stickers never re-checked
Before you upload
Tick these off against your crop preview—nothing is saved.
Related surfaces compared
Similar-looking slots often use different ratios—do not reuse one export for all of them.
Carousel slide
1080 × 1350
This page. One 4:5 frame in the swipe set.
Single Threads post
1080 × 1350
One photo beside text—not a stack.
Square option
1080 × 1080
Only if the whole carousel is square.
Instagram carousel
Often 1080 × 1350
Similar habit—re-check Threads chrome.
| Surface | Typical size | Note |
|---|---|---|
| Carousel slide | 1080 × 1350 | This page. One 4:5 frame in the swipe set. |
| Single Threads post | 1080 × 1350 | One photo beside text—not a stack. |
| Square option | 1080 × 1080 | Only if the whole carousel is square. |
| Instagram carousel | Often 1080 × 1350 | Similar habit—re-check Threads chrome. |
Design the swipe for a text-first feed
People skim replies as much as images. Make every slide self-contained enough to understand out of order, while still rewarding a full swipe with a clear narrative.
- Slide 1: promise or bold visual claim.
- Middle: one idea per frame.
- Last: CTA that still reads beside replies.
- Match framing habits across the set.
Carousel vs single post vs Instagram
One sharp photo belongs on the Threads post page. A multi-step story belongs here as matching 4:5 slides. Instagram carousels are a strong starting file—still preview inside Threads before you publish.
- Threads post size — 1080 × 1350 single photo
- Instagram carousel — Same 4:5 Meta habit
- Threads hub — Post, profile, carousel
File requirements
Export 1080×1350 per slide in sRGB—or all 1080×1080 if the whole set is square. Keep titles inside the safe margin. Prefer consistent naming (01–10) before upload.
- Primary size
- 1080 × 1350 px (4:5)
- Square option
- 1080 × 1080 px (whole set)
- Formats
- JPG photos; PNG flat
- Not single post only
- Sequence needs matched slides
- Carousel rule
- Same aspect on every slide
- Best for
- Threads multi-image carousels
Common mistakes
- Mixing portrait and square in one set.
- Pasting wide link-preview or OG cards as slides.
- Expecting Instagram sticker layouts to look perfect without a re-check.
- Packing long paragraphs onto every frame.
- Forgetting a clear last-slide CTA.
How to use the crop tool
Upload each slide’s source, keep Carousel slide (1080×1350) selected—or Square for an all-square set—drag until the subject sits in the safe margin, then download. Repeat for the full set.
- Never switch ratio mid-set.
- Prefer JPG for photo slides.
- Upload the set in Threads yourself.
After you download
From this download to a live upload in a few minutes.
- 1
Download each 1080×1350 slide (JPG for photos, PNG for flat graphics).
- 2
Open Threads → new post → add images → upload the set in order.
- 3
Write the long copy in the text field; keep on-image words short.
- 4
Preview the swipe on a phone before publishing.
- 5
If you cross-posted from Instagram, confirm height stays steady in Threads.
Frequently asked questions
What size are Threads carousel slides in 2026?
A practical size is 1080×1350 (4:5) per slide. Square 1080×1080 works only if every slide in the set is square.
Do all Threads carousel slides need the same ratio?
Yes—match every slide to the first. Mixed ratios cause uneven crops and jump cuts while people swipe.
Is Threads carousel the same as a single Threads post?
Same practical 4:5 pixels, different job. A post is one image; a carousel is a matched swipe set with a sequence and last-slide CTA.
Can I reuse an Instagram carousel on Threads?
Often yes at 1080×1350—but re-check framing inside Threads. Chrome and reply context still differ.
Can I crop Threads carousel slides here?
Yes. Crop each slide in the browser, then upload the set on Threads yourself.