Guides

Each note answers one question about a file you can actually export. The tools stay on their own pages.

Which tool
Pick the collage, split photo, photo tile, grid overlay, or brightness tool from the file you want back.
Instagram 3×3 from one photo
Split a photo into a 3×3 ZIP, post the bottom-right file first, and keep gap and margin at 0%.
Make a photo grid collage
Build one collage PNG in the browser. No account, no watermark, export at the canvas size you set.
Collage preset sizes
What Square, IG Portrait, IG Story, FB Post, and FB Cover actually export, and which field overrides the button.
Carousel vs profile grid
The same 3×3 ZIP, two orders. Profile posts start at the bottom-right file. A carousel starts at split_1_1.png.
Grid method for drawing
Draw the same cell count on the photo and on the paper. Grid overlay only draws the lines.
Repeat a photo as a tile
Photo tile copies one cell up to 20×20. Seams show unless the picture already matches at the edges.
Adjust brightness before a collage
Three sliders from 0% to 200%, one PNG at the photo’s pixel size, then that file goes into the next tool.
Layouts for 2, 3, and 4 photos
What 2 Photos (V), 2 Photos (H), the 2×2 grid, and the two mixed buttons actually export, and which canvas to pick.
WeChat Moments 9-grid
Select split_1_1.png first and split_3_3.png last. Moments is one post, not nine Instagram posts.
Instagram sizes
Feed, story, profile, and 3×3 sizes, checked against Instagram Help, and which Collage87 control matches each one.