Free tool
An envelope for any card, from one sheet of paper.
Choose the card size and your printer paper. You get a print-ready envelope template with cut, fold and glue lines, sized to fit — free, in your browser, no sign-up.
Finished envelope: 154 × 111 mm. Fits on one A4 sheet.
How to make the envelope
Five minutes, one sheet, a glue stick.
- 1. Choose the card size
Pick what goes inside (A6, A5, A7, 4×6, 4.25×5.5 or 5×7 inches, or a custom size) and your printer paper.
- 2. Download and print at 100%
Print the PDF at Actual size / 100%, never Fit to page, on 90–120 gsm paper or thin card.
- 3. Cut and fold
Cut on the solid outline. Fold the two side flaps in, then fold the bottom flap up over them.
- 4. Glue and close
Glue the bottom flap to the side flaps on the grey strips, slide the card in and fold the top flap down. Seal with glue or a sticker.
Making the card too? Every Foldpic project — folded cards, postcards, zines and photo books — has a gift kit that prints a matching envelope, gift tags and a paper sleeve in the same colours.
Envelope questions
What size envelope does an A6 card need?
A C6 envelope (114 × 162 mm) is the standard fit for an A6 card (105 × 148 mm). The template adds 4 mm plus a thickness allowance to the card on each side, so the A6 template comes out at about 154 × 111 mm, landscape.
Can I make an envelope from one A4 sheet?
Yes, for cards up to roughly A6 or 5 × 7 inches. Bigger cards need an A3 or 11 × 17 inch sheet; the tool tells you when a size will not fit and switches the template to the next paper size up.
What paper is best for a homemade envelope?
90–120 gsm paper folds crisply and still goes through a home printer; thin card up to 160 gsm works for a sturdier envelope. Score the fold lines with a ruler and an empty ballpoint pen on anything heavier than 120 gsm.
Can I post a homemade envelope?
Usually yes if it is a standard size, rectangular, sealed and the address is legible. Postal services set minimum sizes (for example 140 × 90 mm for Royal Mail letters), so very small envelopes may not be accepted — check your local postal service.
Is the template really free?
Yes. It is generated in your browser, there is no sign-up, and nothing is uploaded.
Now make the card that goes inside.
Your first project is free, up to 16 pages. No sign-up. Just you and a little creativity.