Photo Collage Builder

Combine multiple photos into beautiful collages. Choose from various layouts and arrangements.

Drop photos here or use the button above

How to Create a Photo Collage

  1. Upload your photos - Click the file picker or drag and drop images directly into the photo area. You can add as many photos as you like.
  2. Arrange your photos - Drag and drop thumbnails to reorder them. The first photo appears in the top-left position, flowing left to right, top to bottom.
  3. Choose a layout - Grid arranges photos in rows and columns. Horizontal Strip places all photos side by side. Vertical Strip stacks them top to bottom. Freeform lets you place each photo anywhere on the canvas by hand.
  4. Fine-tune in Freeform mode - Tap or click a photo to select it, then drag it anywhere. Use the round handle above the photo to rotate it and the corner handle to resize it. The toolbar buttons let you layer photos in front of or behind each other.
  5. Adjust settings - Set the number of columns, gap between photos, background color, and canvas dimensions. Use the size presets for common social media formats.
  6. Download - Choose JPEG for smaller files or PNG for lossless quality, then download your collage.

Social Media Size Guide

Different platforms have different ideal image sizes. Here are the most common formats and when to use them:

Instagram Post (1080×1440, 3:4) is the current recommended format - Instagram's profile grid switched from squares to taller 3:4 previews, and a 3:4 post displays uncropped in both the feed and the grid. Instagram Feed (1080×1350, 4:5) still looks great in the feed but gets slightly trimmed top and bottom on the profile grid. Square (1080×1080) remains useful for other platforms and general use, though it takes up the least feed space on Instagram. Facebook Posts (1200×628) are optimized for the news feed layout. Pinterest Pins (1000×1500) use a tall format that performs best on Pinterest's grid layout. Twitter/X Headers (1500×500) are the wide banner format for profile pages.

Tips for Great Collages

Use photos with similar color tones or themes for a cohesive look. When mixing portrait and landscape photos, the grid layout handles them best by cropping each to fill its cell evenly. A small gap (2–6 pixels) between photos gives a clean, modern look, while zero gap creates a seamless mosaic effect. For print projects, use larger canvas dimensions (3000+ pixels) and PNG format to preserve quality.

Freeform mode is great for scrapbook-style layouts: overlap photos at slight angles for a casual, hand-placed feel, or rotate a few photos a couple of degrees to break up a rigid arrangement. Photos can hang off the canvas edges for a full-bleed look - anything outside the canvas is simply cropped in the final download.

FAQ

How many photos can I add? There's no hard limit - you can add as many photos as you want. However, with more than about 20 photos in a grid, each cell becomes quite small. For best results, 2–12 photos works well.
Can I reorder photos after adding them? Yes - drag and drop the thumbnails to rearrange them. The collage updates automatically when you change the order. In Freeform mode, the thumbnail order also controls layering: later photos appear on top.
How does Freeform mode work? Select Freeform from the Layout menu, then tap or click any photo on the canvas to select it. Drag to move it, use the round handle to rotate (it snaps at 90° angles), and drag the corner square to resize. On touch screens you can also pinch with two fingers to resize and rotate the selected photo in one gesture. Bring Forward and Send Backward control which photos overlap which.
What are the pink lines that appear while dragging? Those are smart alignment guides. When the photo you're moving lines up with the canvas center, a canvas edge, or the center or edge of another photo, a pink guide line appears and the photo gently snaps into alignment. The same idea applies while resizing: when your photo's width or height matches another photo's, both get a pink outline and snap to exactly equal size - making uniform layouts easy.
What happens if my photos are different sizes? Each photo is automatically cropped to fill its cell using a "cover" fit, similar to how CSS background-size: cover works. The photo is centered and scaled so no empty space appears, though some edges may be trimmed.
JPEG vs PNG - which should I choose? JPEG produces smaller files and is ideal for photos and social media sharing. PNG is lossless, preserving exact pixel quality - best for print or when you need a transparent background.
Are my photos uploaded anywhere? No - everything is processed entirely in your browser. Your photos never leave your device.
Can I use this on mobile? Yes - the tool works on phones and tablets. Tap the file picker to select photos from your camera roll, and all the same layout and download options are available.