Combine images into one
The Stacker joins photos, screenshots and PDF pages into one tall image, a side-by-side strip or a grid, ready to send on WhatsApp or post on Instagram. It can split many images into groups and runs entirely in your browser.
How to use it
- Drop, choose or paste (Ctrl/⌘ V) your images. PDFs open as pages you can pick from.
- Drag to reorder. Choose top to bottom, side by side or a grid, and add captions or numbers if you like.
- Split into groups (for example every 5 slides) if one image would be too long.
- Download as JPG, PNG or PDF, copy, or share straight to WhatsApp.
Questions
How do I combine several photos into one image?
Add the photos, put them in order and download. They are joined top to bottom by default; you can switch to side by side or a grid. The result is one JPG or PNG.
Can I turn PDF slides into images for WhatsApp?
Yes. Add the PDF, pick the pages you want, and the stacker joins them into tall images, for example 5 slides per image, which read well on a phone.
Will WhatsApp make the combined image blurry?
Turn on WhatsApp quality before downloading. Each stack is then sized so WhatsApp HD sends it without shrinking the text.
Can I make an Instagram carousel?
Yes. Carousel slicing cuts a long stack into 1080 × 1350 slides in order.
Are my photos uploaded anywhere?
No. Everything happens inside your browser on your own phone or computer. Your photos are never sent to a server, so nobody else can see them, and the tool keeps working without internet once the page has loaded.
Is it free? Is there a watermark?
It is free, needs no sign-up, has no daily limit and never adds a watermark to your images.