Pick a style: Cutter, stamp, stencil, topper, or baking mold presets in one click.
Set size & walls: Dial inches and rim or wall widths for your tray; preview instantly.
Print or order: Download STL for DIY printing or order a food-safe printed tool.
Logo-friendly: Upload brand art if you need custom logos or lettering.

Decorating Ideas

Use a red or blush heart seal and light envelope shading to add dimension.

Classic:: Ivory envelope with a bright red seal and gold accents.
Modern:: Tone-on-tone blush with a deep rose heart seal.
Kids:: Pastel envelope with a hot pink heart and sprinkles.

Printing Tips

PLA + 0.4mm nozzle:: Use 0.2mm layers so the heart seal stays crisp.
Bottom layer:: Keep the rim between 3mm and 6mm so the envelope outline stays sturdy.
Top detail layer:: Use 0.6mm or wider for a sturdy cutting edge.
Finish:: Lightly sand the rim, or order the printed version for a ready-to-bake finish.

FAQs

Can I add initials to this Envelope with Heart Seal design?

Yes. Upload a vector or high-contrast PNG, place it on the envelope, pick cutter, stamp, stencil, topper, or baking mold, set inches, and export the STL or order it printed.

What size works best for Valentines sets?

For cookie boxes, 3" to 4" fits most trays; 2" works well for minis or toppers.

Can you ship printed tools?

Yes. After sizing, choose "Order printed" in the app and we will produce and ship it for your sets.

Can I use this as a stencil or baking mold?

Yes. Choose Stencil or Baking Mold before downloading or ordering; the app applies the right height presets.