You want to merge two photos into one image, side by side, stacked, or as a collage, without paying for Photoshop or downloading sketchy software. Free tools on your phone, browser, and Windows desktop can do this cleanly in under two minutes.
Pick the method that fits where you are right now.
Method 1: Google Photos (Android or iOS, fastest option)
If the photos are already on your phone, Google Photos‘ built-in Collage feature handles this in a few taps with no watermark and no sign-up beyond your Google account.
Step 1: Select your two photos
- Open the Google Photos app on your Android or iOS device.
2. Long-press the first photo until a checkmark appears.
3. Tap the second photo to select it as well.
Step 2: Create the collage
- Tap Add to at the bottom of the screen.
2. Select Collage from the menu.
3. Choose the simple split layout, which gives you a clean side-by-side or top-and-bottom arrangement.
4. Tap each photo to rotate it or pinch to zoom and reposition it within its frame.
5. Tap Save when you’re happy with the result.
The combined image saves as a new photo in your library. Find it later under Search > Collages. This method requires Android 8.0 or later and at least 3 GB of RAM on your device. For more on what’s possible with Google Photos, check out the official blog post on the collage editor.
Method 2: Free Online Photo Combiner (no install, any device)
A browser-based photo joiner is the fastest option if you’re on a desktop or laptop and just need a quick side-by-side export. Canva’s free image combiner is a reliable choice. There’s no watermark on basic exports and no desktop install needed.
Step 1: Set up your layout in Canva
- Go to canva.com and sign in (free account works).
2. Click Create a design and choose a custom size, or pick any preset that’s roughly the shape you want (landscape for side-by-side, portrait for stacked).
3. In the left panel, click Elements and search for Grids.
4. Select a 2-column grid for side-by-side, or a 2-row grid for one image on top of the other.
Step 2: Add your images
- Click Uploads in the left panel, then Upload files.
2. Select both photos from your computer.
3. Drag the first photo into the left frame of the grid. Canva clips it automatically.
4. Drag the second photo into the right frame.
5. Double-click inside a frame to reposition the image within it, or pinch/scroll to zoom.
Step 3: Adjust and export
- Optionally adjust border thickness between the images by clicking the grid and using the spacing controls in the toolbar.
2. Click Share in the top-right corner, then Download.
3. Choose PNG (better quality) or JPG (smaller file size), then click Download.
If you want a completely sign-up-free option, search for “photo joiner” or “image combiner” in your browser. Several no-account tools let you upload two images, pick horizontal or vertical orientation, set border width, and download a JPG or PNG directly. For a visual guide, see this YouTube tutorial on combining photos.
Method 3: Paint.NET or GIMP (free desktop editors with layers)
If you need full control over resolution and positioning, or you’re working with high-res photos and can’t afford quality loss from a web export, a free desktop editor is the right tool. Paint.NET is the easiest starting point on Windows; GIMP gives you more power if you need it.
The steps below work in both apps. The UI labels are slightly different, but the workflow is the same. For more advanced editing, consider ways to make an image transparent before combining.
Step 1: Create a new canvas sized for both images
- Open Paint.NET or GIMP.
2. Check the pixel dimensions of each photo first. In Paint.NET, open each image and look at the bottom status bar. In GIMP, go to Image > Image Properties.
3. Create a new file (Ctrl+N) with a canvas sized to fit both images: – Side by side: Width = Image 1 width + Image 2 width. Height = the taller of the two. – Stacked: Width = the wider of the two. Height = Image 1 height + Image 2 height.
Step 2: Paste each image as a layer
- Open your first image in the editor.
2. Press Ctrl+A to select all, then Ctrl+C to copy.
3. Switch to your new blank canvas and press Ctrl+V to paste. In Paint.NET, this creates a new layer automatically. In GIMP, use Edit > Paste as > New Layer.
4. Use the Move tool to drag the pasted image to the left side (or top, if stacking).
5. Repeat for the second image, positioning it on the right (or bottom).
Step 3: Flatten and export
- In Paint.NET: go to Image > Flatten to merge the layers.
2. In GIMP: go to Image > Flatten Image.
3. Press Ctrl+Shift+S (Save As) and save as PNG or JPG.
PNG preserves full quality and supports transparency. JPG produces a smaller file, which is fine for photos you’re emailing or posting online.
Method 4: Microsoft Paint (no install required, Windows only)
Paint is already on every Windows PC and works offline. It doesn’t support layers, so the workflow is a bit more manual, but it gets the job done when you can’t install anything. For users needing more from Windows tools, learn how to use the new Photos app in Windows 11.
Step 1: Resize and prep each image
- Right-click the first image in File Explorer and choose Open with > Paint.
2. Click Resize on the Home tab. Check Maintain aspect ratio and scale down if the photo is very large (camera photos are often 4000+ pixels wide; scaling to 1000–1500px wide is usually enough).
3. Note the final pixel dimensions shown in the bottom status bar.
4. Save the resized image (Ctrl+S).
5. Repeat for the second image, resizing it to the same height (for side-by-side) or same width (for stacked).
Step 2: Create a new canvas sized for both images
- Open a new Paint window (File > New).
2. Click the Resize button and switch to Pixels.
3. Enter the combined dimensions: – Side by side: Width = Image 1 width + Image 2 width. Height = height of one image. – Stacked: Width = width of one image. Height = Image 1 height + Image 2 height.
4. Click OK. You now have a blank white canvas exactly the right size.
Step 3: Copy and paste both images onto the canvas
- Open the first image in a second Paint window (right-click the file > Open with > Paint).
2. Press Ctrl+A to select all, then Ctrl+C to copy.
3. Switch back to your blank canvas window and press Ctrl+V to paste.
4. The image will land in the top-left corner. Use the arrow keys to nudge it into place if needed. Click somewhere else on the canvas to confirm the placement.
5. Go back to the second Paint window, open the second image, and repeat: Ctrl+A, Ctrl+C.
6. Switch to the canvas, press Ctrl+V, then click and drag the pasted image to the right side (or bottom). Use arrow keys for fine positioning.
7. If you drop it in the wrong spot, press Ctrl+Z immediately to undo, then paste again and reposition.
Step 4: Save the combined image
- Go to File > Save as.
2. Choose PNG for best quality or JPEG for a smaller file.
3. Name the file and click Save.
What about AI image combiners?
If you want the two images blended into a single seamless scene, not just placed side by side, AI tools are now a practical option. You upload both images, describe how you want them merged (for example, “place the person from image 1 next to the car from image 2 at sunset”), and the AI handles matching the lighting, shadows, and perspective automatically. Search for “AI image combiner” to find current options. This is overkill for a simple collage, but worth knowing about if you’re after something more composited. For creative inspiration, explore top AI tools to unleash your creativity.
Common problems and quick fixes
The images are different sizes and look uneven
Crop both photos to the same aspect ratio before combining them. Most tools let you crop to a specific ratio (like 4:3 or 1:1). Matching the height for side-by-side layouts, or the width for stacked layouts, is all you need.
The exported image looks lower quality than the originals
Free web tools sometimes compress exports heavily. If quality matters, use Paint.NET or GIMP on the desktop, as they export at full resolution. Also check whether the tool has a quality slider in the export dialog before downloading.
There’s a white gap or colored bar between the images
That’s the canvas background showing through. In Canva, adjust the spacing/border setting on the grid element. In Paint, make sure your canvas dimensions exactly match the combined image sizes, as any extra pixels show up as a white strip.
The tool wants me to sign up or adds a watermark
Google Photos’ collage feature is free with no watermark if you’re already signed into a Google account. Canva’s basic PNG download is also free. If a tool adds a watermark on the free tier, close it and try a different one, as plenty of no-watermark options exist. For fully offline work with no accounts at all, use Paint, Paint.NET, or GIMP.
Which method should you use?
For most people, Google Photos (if you’re on mobile) or Canva (if you’re on a desktop browser) is the fastest path with the least friction. Paint.NET is the right call if you need high-resolution output or want to do this regularly without browser tools. Stick with MS Paint only if you’re on a locked-down PC where you genuinely can’t install or access anything else. It works, but the manual canvas math gets tedious fast.
