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

Merge Screenshots into a Grid for Reddit Posts

Reddit communities love visual proof. A single screenshot is good. A grid showing before/after, comparison, or step-by-step reproduction proves your point and earns upvotes.

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Reddit's image handling: one image per post (unless using native gallery, not always allowed). A merged grid shows multiple screenshots in a single upload.

Formats by subreddit: Tech support: Strip of 3 (error → what you tried → settings). Battlestations: 2×2 (wide shot → detail → cable management → lighting). DIY: Strip of 3 (materials → in-progress → finished). Gaming: 2×2 (settings → FPS → gameplay → build).

Export at 1920px for sharp high-DPI. Reddit converts to WebP: overcompensate with higher source resolution.

How to Do It: Step by Step

1
Plan your Reddit narrative
What does your grid prove? Before/after, problem/solution, showcase.
2
Capture at consistent resolution
Same zoom, same window. Reddit appreciates clean screenshots.
3
Open MergeFrame and build
Strip of 3 for sequences, 2×2 for showcases.
4
Export at 1920px wide
Compensates for Reddit's WebP conversion.
5
Post to the right subreddit
Descriptive title. Upload your grid.

Ready to merge your images?

100% browser-based. No account. No upload. Free.

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Frequently Asked Questions

Can I post grids to any subreddit?

Most allow image posts. Check rules. Visual/hobby subreddits perform best.

Best image format for Reddit?

PNG for screenshots/text. Reddit converts to WebP: high-quality PNG gives the converter more data.

Do grid images get more upvotes?

Yes, when they add value. Multi-proof grids eliminate 'need more screenshots' comments.

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Free step-by-step guides from the same use case and from adjacent ones.

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