How I Built an AI Image Merge Tool for Combining Two Photos into One Scene

Zi Xin — Wed, 09 Sep 2026 09:43:17 +0000

How I Built an AI Image Merge Tool for Combining Two Photos into One Scene
Combining two images sounds simple, but the result often looks like a collage.
The subjects may have different lighting, perspective, scale, shadows, and color temperature. Even when both images look good individually, the combined image may not feel like one real photograph.
That is the problem I wanted to solve with AI Image Merge.
What the product does
AI Image Merge takes two source images and creates one coherent AI-generated composition.
It can be used to:

Put two people into one shared moment
Place a product into a lifestyle scene
Furnish an empty room using a reference image
Create a travel portrait
Try accessories on a person
Mix subjects, colors, and visual styles The workflow is simple:
Upload two JPG, PNG, or WebP images
Choose a merge direction
Add an optional prompt
Select an output ratio
Generate and download the result as a PNG Each image can be up to 10 MB. Merge presets The product currently includes five presets: Natural Creates a balanced and realistic composition. People Places people from two photos into one shared scene. Product Moves a product into a new environment while preserving its visual details. Room Turns an empty room into a furnished interior based on a reference image. Creative Combines the strongest subjects, colors, and styles from both images. Users can also add instructions such as: Place the person from image one in the cafe from image two.

The main technical challenge
The difficult part is not simply sending two images to an AI model.
The output needs to preserve important details from both sources while matching:

Lighting direction
Perspective
Subject scale
Posture and eye line
Contact shadows
Depth of field
Color temperature
Background depth
Product shape and material The application builds these requirements into preset prompts so users can get better results without writing long prompts themselves. Technical architecture The application is built with Next.js and TypeScript. The image merge flow is asynchronous:
The browser requests upload URLs
Images are uploaded directly to object storage
The server creates a merge task
Credits are reserved
The task is sent to the configured AI provider
The client polls the persisted task status
The generated image becomes available for preview and download The provider layer is separate from the product workflow. The project supports providers such as Kie, Replicate, Gemini, and Fal. This means the AI provider can be changed without rewriting the upload, credit, task, or download flow. Pricing and downloads New users receive three free 1K generations after signing up. One credit creates one 1K image. Free-credit downloads include a watermark. Paid generations can be downloaded without a watermark. The product supports both subscriptions and one-time credit packs. Why I built it Many image tools focus on generating a completely new image from text. I wanted a more practical workflow: start with two images that already contain something important, then combine them into one believable result. This makes the tool useful for:
Personal portraits
Product concept images
Interior previews
Marketing experiments
Social content
Creative references Try it here: https://aiimagemerge.com I would love to see what kinds of images people create with it.

Free avatar maker — create cute profile pictures in seconds

Zi Xin — Thu, 23 Apr 2026 08:23:41 +0000

Square Face Generator - Free Online Avatar Maker

Link: https://squarefacegenerator.one

Square Face Generator is a fast, browser-based avatar creation tool designed for anyone who wants a personalized profile picture without the
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How It Works

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Four Visual Styles

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Key Advantages

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optimized for profile pictures across Discord, TikTok, Twitter/X, gaming platforms, and more. The shareable preset system lets users copy direct
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Perfect For

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Community projects, newsletters, and side hustles
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Why It Stands Out

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Whether you're looking for a quick gaming avatar or a mascot for your project, Square Face Generator delivers results in seconds.

DEV Community: Zi Xin

How I Built an AI Image Merge Tool for Combining Two Photos into One Scene

Free avatar maker — create cute profile pictures in seconds