Split a long image into pieces
Divide an unusually long screenshot into equal parts, or cap each piece at a maximum height, so it can be published in full on platforms with limits.
Upload and process
Runs locallyHow to use it
- Choose the direction: vertical for tall screenshots, horizontal for very wide tables or timelines.
- Choose the mode: equal parts by count, or pieces capped at a maximum height.
- Enter the number — for example 3 pieces, or 1200px per piece.
- Upload your long image, or several of them.
- Click split, then download individually or as a ZIP.
When this tool helps
Long screenshots tend to arrive cropped or crushed into an unreadable strip on social platforms. Cutting them into platform-sized pieces keeps every part sharp while preserving the full content. Splitting by count suits "I need four posts"; splitting by height suits a platform's documented maximum. Both modes are pure cropping with no rescaling, so nothing gets softer.
FAQ
Will there be gaps or overlaps?
No. Pieces are cut on exact pixel boundaries. The final piece is shorter when the total height does not divide evenly, which is expected.
Can it split horizontally?
Yes. Very wide images such as timelines or long tables can be split left to right.
Does splitting reduce quality?
No scaling happens, only cropping, so sharpness matches the original. JPG output adds one re-encode; PNG output is lossless.
Can I process several long images at once?
Yes. Each image is split by the same rules and output names carry the original name plus an index.
Why prefer PNG output?
Screenshots re-encoded as PNG avoid compression artefacts and keep text edges clean. For photo-like long images, JPG is far smaller.
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