Is MergeFrame really free?

Yes, MergeFrame offers a free version with PNG + JPG 4000px export, 2 exports per day and 8 grid types. The Pro version ($7/month) unlocks unlimited exports, all import formats and customizable grids.

Are my images uploaded to a server?

No. MergeFrame processes your images exclusively in your browser via the Canvas API. No images are uploaded to a third-party server. MergeFrame cannot see, store or access your images.

What image formats are supported?

MergeFrame supports all common image formats: PNG, JPEG, WebP, SVG, GIF and BMP. Export is in high-resolution PNG at up to 4000px, on the free plan and on paid plans alike.

Can I use MergeFrame on mobile?

Yes, MergeFrame is responsive and works on all modern browsers (Chrome, Firefox, Safari, Edge) on desktop, tablet and mobile.

How-to Guide

Combine Screenshots into a Grid for Technical Documentation

Technical documentation lives or dies by its visuals. A single grid showing input, command, and output teaches a developer in seconds: faster than paragraphs of prose and separate screenshot attachments.

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Developer documentation needs to communicate input, process, and output simultaneously. A Strip of 3 grid (code → terminal → result) maps exactly to how developers think.

For API docs, use 2×2: request (top-left), response (top-right), auth (bottom-left), error handling (bottom-right). For CLI tools: install → usage → output. For onboarding: file structure → config → first run → dashboard.

Keep all screenshots in dark theme for readability on dark-background platforms like GitHub. Use consistent font size (14–16px).

How to Do It: Step by Step

1
Plan your doc grid story
What's the input-process-output? Code → terminal → result, or request → response → UI.
2
Capture at consistent size
Same terminal width, same editor font size, same zoom level.
3
Open MergeFrame
Visit mergeframe.com: free, no signup, instant.
4
Choose Strip of 3 or 2×2 layout
Strip of 3 for workflows, 2×2 for API references.
5
Export and embed
Download PNG at 1920px. Embed in README, wiki, Notion, or Confluence.

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Frequently Asked Questions

Screenshots or code blocks?

Both. Code blocks for copy-paste, screenshots for visual context. A grid gives readers both.

Best format for API docs?

2×2: request, response, auth headers, error response: the four things every API consumer needs.

Works with static site generators?

Yes. Export PNG, place in /static/img/, reference in Markdown/MDX.

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Optional: 10 social media grid templates you can import in one click, plus occasional MergeFrame tips. The tool stays 100% free and account-free: it is a bonus.

MergeFrame: Combine images into a grid. Free. No account. Browser-only.

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Combine Images Into a Grid, Free Online Tool