Photo Mosaic Generator

Create stunning photo mosaics by combining hundreds of small images to form a larger main image. Each tile is carefully selected to match the colors of the underlying image.

Click to upload file or drag and drop file here

Maximum file size: 50MB Supported formats: image/jpeg, image/png, image/webp, image/gif, image/bmp

The large image that will be recreated with small tiles

Click to upload files or drag and drop files here

Maximum file size: 10MB Maximum files: 500
Supported formats: image/jpeg, image/png, image/webp, image/gif, image/bmp

Small images that will form the mosaic pattern

Size of each mosaic tile (larger = fewer tiles, faster processing)

Resolution for analyzing tile colors (lower = faster, higher = more accurate)

Tiles will overlap slightly for a more seamless appearance

How tiles blend with the main image colors

Key Facts

Category
Design & Color
Input Types
file, number, checkbox, select
Output Type
file
Sample Coverage
4
API Ready
Yes

Overview

The Photo Mosaic Generator allows you to create stunning composite images by combining hundreds of small tile photos to reconstruct a single large main image. By analyzing and matching the colors of your tile images to the source image, the tool generates high-quality mosaic patterns with customizable tile sizes, blending modes, and resolutions.

When to Use

  • •Creating personalized anniversary or retirement gifts using a collection of family photos to form a main portrait.
  • •Designing corporate branding materials or event posters that showcase community members or product catalogs in a single composite image.
  • •Generating unique digital art and wallpapers from themed photo collections for social media or print.

How It Works

  • •Upload your primary main image and select up to 500 small tile images to form the mosaic pattern.
  • •Configure the tile size, analysis resolution, and choose whether to enable tile overlapping for a seamless look.
  • •Select a blending mode (Normal, Tint, Overlay, or Screen) and set your preferred output format and quality.
  • •Click generate to process the color matching and download the final high-resolution mosaic image.

Use Cases

Designing a commemorative poster for a school graduation using individual student portraits to form the school logo.
Creating a marketing banner for a brand using product catalog photos to reconstruct the company logo.
Producing custom wall art for home decor using travel photos to recreate a scenic landscape shot.

Examples

1. Corporate Anniversary Mosaic Poster

Marketing Coordinator
Background
A company is celebrating its 10th anniversary and wants to create a large poster of their logo made up of photos of their employees.
Problem
Manually arranging hundreds of employee photos to match the colors of the corporate logo is impossible to do by hand.
How to Use
Upload the corporate logo as the main image, upload 300 employee headshots as the tile images, set the tile size to 40px, and select the 'Tint' blending mode to ensure the corporate colors are accurately represented.
Example Config
{"tileSize": 40, "tileResolution": 30, "overlapTiles": true, "blendingMode": "tint", "outputFormat": "png", "quality": 95}
Outcome
A high-resolution PNG mosaic of the company logo composed of clearly visible employee photos that match the brand colors.

2. Wedding Portrait Photo Mosaic

Graphic Designer
Background
A designer wants to create a unique wedding gift for a client by forming a main wedding portrait out of hundreds of candid photos from the couple's relationship.
Problem
Creating a visually appealing mosaic where the individual memories are recognizable but still form the main portrait clearly.
How to Use
Upload the main wedding portrait, select 450 candid relationship photos as tiles, set the tile size to 60px for better visibility of individual photos, and use 'Overlay' blending mode to enhance the colors.
Example Config
{"tileSize": 60, "tileResolution": 50, "overlapTiles": false, "blendingMode": "overlay", "outputFormat": "jpeg", "quality": 90}
Outcome
A beautiful JPEG photo mosaic where guests can zoom in to see individual memories and zoom out to see the main wedding portrait.

Try with Samples

image, png, jpg
Web Image Processing Python Samples
Web Python image processing examples using PIL/Pillow including reading, saving, resizing, and format conversion
preferred input family image
image
macOS Image Processing Objective-C Samples
macOS Objective-C image processing examples including image reading/saving, image scaling, and format conversion
preferred input family image
image
Android Image Processing Java Samples
Android Java image processing examples including reading/saving images, scaling, and format conversion
preferred input family image
image
Android Image Processing Kotlin Samples
Android Kotlin image processing examples including reading/saving images, scaling, and format conversion
preferred input family image
image

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FAQ

How many tile images can I upload?

You can upload up to 500 small tile images to build the mosaic pattern.

What does the blending mode option do?

It controls how the colors of the small tile images blend with the colors of the main image, offering options like Normal, Tint, Overlay, and Screen.

How does tile size affect the output?

Larger tile sizes result in fewer tiles and faster processing, while smaller tile sizes create a more detailed mosaic but take longer to generate.

What file formats are supported for output?

You can export your final photo mosaic in PNG, JPEG, or WebP formats.

What is the maximum file size for the main image?

The main image file size limit is 50 MB.

API Documentation

Request Endpoint

POST /en/api/tools/image-mosaic-generator

Request Parameters

Parameter Name Type Required Description
mainImage file (Upload required) Yes The large image that will be recreated with small tiles
tileImages file (Upload required) Yes Small images that will form the mosaic pattern
tileSize number No Size of each mosaic tile (larger = fewer tiles, faster processing)
tileResolution number No Resolution for analyzing tile colors (lower = faster, higher = more accurate)
overlapTiles checkbox No Tiles will overlap slightly for a more seamless appearance
blendingMode select Yes How tiles blend with the main image colors
outputFormat select Yes -
quality number No -

File type parameters need to be uploaded first via POST /upload/image-mosaic-generator to get filePath, then pass filePath to the corresponding file field.

Response Format

{
  "filePath": "/public/processing/randomid.ext",
  "fileName": "output.ext",
  "contentType": "application/octet-stream",
  "size": 1024,
  "metadata": {
    "key": "value"
  },
  "error": "Error message (optional)",
  "message": "Notification message (optional)"
}
File: File

AI MCP Documentation

Add this tool to your MCP server configuration: 

{
  "mcpServers": {
    "elysiatools-image-mosaic-generator": {
      "name": "image-mosaic-generator",
      "description": "Create stunning photo mosaics by combining hundreds of small images to form a larger main image. Each tile is carefully selected to match the colors of the underlying image.",
      "baseUrl": "https://elysiatools.com/mcp/sse?toolId=image-mosaic-generator",
      "command": "",
      "args": [],
      "env": {},
      "isActive": true,
      "type": "sse"
    }
  }
}

You can chain multiple tools, e.g.: `https://elysiatools.com/mcp/sse?toolId=png-to-webp,jpg-to-webp,gif-to-webp`, max 20 tools.

Supports URL file links or Base64 encoding for file parameters.

If you encounter any issues, please contact us at [email protected]