A browser editor for Instagram carousels: lay images across several slides on one canvas, then export each slide as a ready-to-post JPEG.
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Carousels that flow across slides are one of the most engaging Instagram formats, but building them in a general-purpose design tool means manual guides, cropping and exporting slide by slide. [Add who needed it and how long one carousel used to take.]
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I built a dedicated editor around that single job. Slides sit side by side on one multi-page canvas, so an image can span two slides and line up perfectly. Drag and drop, cropping, snap guides, a grid, zoom and undo/redo cover the editing; Instagram's 4:5, 1:1 and 1.91:1 ratios are built in. Export splits the canvas into one JPEG per slide.
Work is never lost: projects autosave locally, can be exported as a native .CMF file, and can be saved to the cloud through Supabase with a login. It is a Progressive Web App, so it installs on desktop or phone and works offline.
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[Add who uses it and what changed, e.g. a carousel now takes X minutes instead of Y.]
