MergeFrame est-il vraiment gratuit ?

Oui, MergeFrame propose une version gratuite avec export PNG + JPG 4000px, 5 exports par jour et 5 types de grilles. La version Pro (7€/mois) débloque les exports illimités, tous les formats d'import et les grilles personnalisables.

Mes images sont-elles uploadées sur un serveur ?

Non. MergeFrame traite vos images exclusivement dans votre navigateur via l'API Canvas. Aucune image n'est uploadée sur un serveur tiers. MergeFrame ne peut pas voir, stocker ni accéder à vos images.

Quels formats d'image sont supportés ?

MergeFrame accepte tous les formats image courants : PNG, JPEG, WebP, SVG, GIF et BMP. L'export se fait en PNG haute résolution (jusqu'à 4000px en version Pro).

Puis-je utiliser MergeFrame sur mobile ?

Oui, MergeFrame est responsive et fonctionne sur tous les navigateurs modernes (Chrome, Firefox, Safari, Edge) sur desktop, tablette et mobile.

How-to Guide

Combine Multiple Screenshots for ChatGPT Vision

ChatGPT can review your app's UI, analyze a bug reproduction sequence, or compare design iterations — but only if you present the screenshots in a way it can reason across. A structured grid is that format.

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Screenshots are the primary visual medium of software development: bug reports, code reviews, design feedback, documentation, and QA all rely on them. ChatGPT Vision opens up automated analysis, but the quality depends on how you structure the input. A 1×3 grid of screenshots — (1) initial state, (2) user action, (3) unexpected result — lets ChatGPT trace the bug flow. A 2×2 grid of UI mockups — versions A, B, C, D — enables comparative design analysis. A 2×3 grid of app screens — login, dashboard, settings, profile, search, about — provides context for a full UX audit. MergeFrame processes screenshots entirely in your browser, so proprietary code and pre-release UIs stay confidential. The tool works with screenshots from any OS: Windows, macOS, Linux, iOS, Android.

How to Do It — Step by Step

1
Capture screenshots at consistent size
Same window dimensions and zoom level for all screenshots in a grid.
2
Annotate key areas
Add arrows or circles on specific UI elements before importing into MergeFrame.
3
Build your grid in MergeFrame
Select layout matching your use case: 1×3 for bug flows, 2×2 for design comparison.
4
Export at 2048px resolution
Optimal for ChatGPT's internal processing. Each cell gets adequate detail.
5
Upload with a descriptive prompt
Explain each cell: 'Cell 1 shows the login page. Cell 2 shows the error after clicking submit...'

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Frequently Asked Questions

How many screenshots can I send to ChatGPT in one grid?

Up to 9 in a 3×3 grid. For analytical tasks, 2×2 or 2×3 (4–6 screenshots) yields the best results.

Should I use dark or light theme screenshots?

Dark theme provides higher contrast for text recognition and reduces visual noise.

Can ChatGPT identify UI bugs from a screenshot grid?

Yes. With a clear 1×3 showing expected state → action → broken state, ChatGPT can identify misalignments, broken text, missing elements, and layout issues.

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

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