Half Letter Envelope 5.5 × 8.5 3D Mockup Generator
Design Editor
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3D Preview
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Background
Camera Animation
Set a view, then add keyframes.
Time to next 1.5s
Add two or more keyframes, tweak the view on each, then press play.
About this template
Present invitation, greeting card, announcement, stationery, and direct mail designs with this 5.5 × 8.5 in (140 × 216 mm) envelope mockup generator. Designed for complete creative flexibility, the editor lets you customize the entire envelope dieline, including the front, back, flap, and side panels, while the live 3D preview instantly renders the assembled envelope to showcase both the cover and reverse side.
Category
brandingPublished
Jul 25, 2026
License
Commercial Use
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