PNG Grid Maker

Up to 120 at once. A merged picture larger than a browser can draw (about 16,000 pixels on a side) is scaled down to fit, and the page says by how much; a PDF with a page per picture keeps every pixel however many there are.

PNG output is lossless. Pictures are only scaled when you ask for sizes to be matched; "Match sizes: smallest" shrinks the larger ones rather than enlarging the smaller, and "Keep original sizes" leaves every pixel as it is.

Yes. Pick a grid by its rows and columns: 2 × 2 for four squares, 1 × 2, 3 × 1, 2 × 3, 3 × 3 and more up to 5 × 5, or Auto-fit for the number of photos you have. A fixed grid keeps its empty cells, and adds rows rather than leave a photo out. Then the cell shape: square, 4:3, 16:9 and others, or the shape your pictures have. "Fit, trimming only empty edges", the default, fills each cell by trimming a picture’s plain background and never cuts into what is on it; "Whole picture" leaves every picture as it is; "Fill" trims every picture to its cell, content included.

This one: add your photos, tap a grid (1 × 2 up to 5 × 5), a collage or a social media size, and download. The photo grid is made in your browser, so it is quick even on a phone, free, and your photos are never uploaded.

Choose "Instagram square 3 × 3" for the classic nine-photo grid at 1080 × 1080, or "Instagram feed 4:5" for four photos on a 1080 × 1350 portrait post. Each photo fills its cell as far as its plain edges allow, and nothing on it is cut off; choose "Fill" to trim photos to their cells. Set the space between photos and a background colour, then download a JPG. There are sizes for TikTok and Stories (9:16), Facebook, YouTube thumbnails, Pinterest and prints too.

Yes. "Big + 2" and "Big + 3" put one large picture beside smaller ones, "Big top" puts it above them, and "Big centre" surrounds it with six. With more pictures than the style holds it repeats down the page. The first picture in your list is the big one, so move the one you want to the top.

Rows of pictures at their own shapes, nothing cropped, each row stretched to the same width, the way photo galleries lay out mixed portrait and landscape photos.

Yes: "Trace to DXF" hands the merged picture to the tracer, which turns it into lines and shapes you can size in millimetres for a laser, CNC or cutting machine. A DXF is drawn geometry, not a photo, so this suits logos, line art and silhouettes rather than photographs.

Yes. Choose PDF as the output for the merged picture on one page, or the "PDF, a page per picture" layout to put each picture on its own page.