How to Merge Multiple Images Into a Grid Collage Right in Your Browser
No design software, no uploads. Here's how to combine several images into one clean grid and export it as a single PNG.
Combining a handful of screenshots, product photos, or memes into a single grid image is one of those tasks that feels like it should take thirty seconds, but usually turns into opening Photoshop or Figma, creating a new canvas, manually placing and aligning each image, and exporting — for something you’ll use once and never open again.
When you actually need a grid merge
This comes up more often than people expect:
- Combining before/after screenshots into one comparison image for a support ticket or bug report.
- Building a simple product grid for a marketplace listing or social post.
- Merging a set of reference images into one file to paste into a doc or chat instead of sending five separate attachments.
- Creating a quick contact sheet from a batch of photos.
None of these need real design software. They need a grid, some spacing control, and an export button.
What a good grid merger needs
A tool built specifically for this should cover a short list of things well, rather than being a stripped-down general image editor:
- Bulk upload across common formats (PNG, JPEG, WebP) so you’re not converting files first.
- A flexible column count, since a 2×2 grid and a 1×10 strip are both common needs.
- Gap and padding controls independent from each other — gap between cells, padding around the whole grid.
- Fit modes (contain, cover, stretch) because your source images are rarely all the same aspect ratio.
- Drag-to-reorder so you don’t have to re-upload in a specific order to get the layout right.
- Transparent or solid background, depending on whether the result is going on a colored page or standing alone.
- A live preview that updates as you adjust settings, instead of a “generate” step you have to re-trigger.
Doing it without uploading your images anywhere
Bulk PNG Grid Merger handles all of the above entirely inside your browser tab — nothing is uploaded to a server, which matters if any of the images are private (screenshots of internal tools, unpublished product photos, personal photos). You upload, arrange, adjust gap/padding/fit mode, and export directly to a transparent PNG or straight to your clipboard, ready to paste.
The free tier covers the core workflow completely: bulk upload, 1–10 column grids, gap/padding, three fit modes, drag-to-reorder, background control, and clipboard export — no watermark, no image limit. A Pro upgrade adds retina/print export scaling (2×–4×), canvas presets sized for Instagram, A4, and common social formats, per-cell borders and rounded corners, saved presets, and per-cell captions — useful if you’re doing this regularly rather than as a one-off.
A typical workflow
Drop in your images, pick a column count that roughly matches how many images you have (a 3-column grid for 6–9 images usually looks the most balanced), set a small gap so cells don’t touch, and export. For anything going into a doc or ticket, transparent background with contain fit mode is usually the safest default since it never crops your source images.
