
The Long Screenshot Problem
You have a long screenshot — a full-page website capture, a text conversation, a receipt, a leaderboard, a code snippet, or an article. It is far too tall and narrow to post on social media as-is. Instagram crops it to a square. Twitter shrinks it until the text is unreadable. Facebook compresses it into a blurry thumbnail.
The solution: split the screenshot into multiple segments, each properly sized for the platform. Post them as a carousel on Instagram, a thread on Twitter/X, or a multi-image post on LinkedIn.
Splitting Screenshots for Instagram Carousels
Instagram carousels support up to 20 slides. For long screenshots, split vertically so each slide shows a readable section. The ideal approach:
- Open the Carousel Maker
- Upload your long screenshot
- Select the number of slides — the tool calculates the height of each slide automatically
- Choose portrait (4:5) or square (1:1) format for maximum readability
- Download and post as a carousel
For text-heavy screenshots (conversations, articles, code), aim for 3 to 5 slides. Each slide should contain enough text to be meaningful on its own while maintaining reading flow across swipes.
Splitting Screenshots for Twitter/X
Twitter displays images at a maximum of 1200 x 675 pixels in the feed (16:9 ratio). Long screenshots need to be split into sections that are readable at this display size. Two to four images work best for a single tweet. For longer screenshots, split into more sections and post as a thread.
Use the Custom Grid Maker with 1 column and multiple rows to split a tall screenshot into horizontal strips. Each strip becomes one image in the thread.
Splitting Screenshots for LinkedIn
LinkedIn's document carousel feature allows multi-page PDF uploads that viewers swipe through. Convert your split screenshot segments into a PDF for the most polished LinkedIn presentation. Alternatively, post the split images as a multi-image post (up to 9 images).
Best Practices for Screenshot Splitting
Find Natural Break Points
Do not split blindly by pixel count. Find natural content boundaries — paragraph breaks, section headers, list item divisions, or conversation message boundaries. A split in the middle of a sentence forces readers to swipe mid-thought.
Maintain Readable Text Size
After splitting, each segment must be large enough for text to remain legible. If the text is too small, consider cropping the screenshot horizontally (removing unnecessary whitespace on the sides) before splitting. This increases the text's relative size within each segment.
Add Context to Each Segment
Each split segment appears as a standalone image in viewers' feeds. Add a small label or slide number ("1/5", "2/5", etc.) to each segment so viewers know there is more content and which slide they are viewing.
Crop Before Splitting
Remove unnecessary elements before splitting: browser chrome, status bars, notification banners, and irrelevant page sections. Tighter cropping means fewer splits needed and more content per segment.
Common Screenshot Types and Recommended Splits
| Screenshot Type | Recommended Split | Platform |
|---|---|---|
| Text conversation | 3-5 segments | Instagram carousel, Twitter thread |
| Full webpage | 4-8 segments | Instagram carousel, LinkedIn document |
| Code snippet | 2-4 segments | Twitter, LinkedIn |
| Data dashboard | 2-3 segments | LinkedIn, Twitter |
| Email/letter | 2-3 segments | Instagram carousel, Twitter |
Handling Different Screenshot Widths
Screenshots from different devices have different widths. Phone screenshots are typically 1080 to 1290 pixels wide. Desktop screenshots can be 1920 pixels or wider. Before splitting, consider whether the full width is needed or if you can crop to the content area for better readability on mobile.
The Carousel Maker and Custom Grid Maker both handle any input dimensions — upload your screenshot at its original size and the tools calculate optimal splits automatically.
Split your screenshots into social-media-ready segments — upload to the Carousel Maker and choose your slide count.
Bello Moussa Amadou
Founder of ReachUp and the maker of Image Splitter Online. Bello builds free, privacy-first web tools used by creators worldwide, and writes these guides from running them day to day.
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