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3DAI
Free · runs in your browser · ink, clay, cookie and wax seal stamps

Stamp Generator

Type up to three lines of text or upload your logo (PNG, JPG or SVG), pick an ink, clay, cookie or wax seal stamp, and set the size, shape, relief depth and handle. The design is mirrored for you so the print reads right, and you download one watertight STL.

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How to make a custom stamp to 3D print

  1. 1

    Add your design

    Type 1 to 3 lines of text in one of four open fonts, or upload a PNG or JPG logo (set the threshold, invert if needed) or an SVG with filled shapes.

  2. 2

    Pick the stamp type

    Ink, clay, cookie and fondant, or wax seal. Each sets a relief depth, the thinnest line it can press cleanly and a handle. Change any of them.

  3. 3

    Shape and size it

    Rectangle, rounded, circle or a plate that follows your outline, the size in mm, base thickness, an optional border ring and the handle.

  4. 4

    Check and download

    Turn the stamp in 3D and look at the printed impression, which shows the design the right way round with any too-thin lines in red. Then download the STL.

Stamp types and their settings

Each type starts from values makers use for that job. They are starting points: change the depth, line width or handle to suit your printer and material.

Ink stampRelief 1.5 mm, lines at least 0.6 mm, block grip. Print the face in TPU or another flexible filament if you can (it takes ink more evenly), or sand a PLA face flat. Mirrored.
Clay / potteryRelief 3 mm, lines at least 1 mm, knob handle. Deeper relief leaves a clear mark in soft clay, soap or leather. Dust the face with cornstarch so it lets go. Mirrored.
Cookie / fondantRelief 4 mm, lines at least 1.2 mm, knob handle. Soft dough fills fine detail, so keep lines bold. Mirrored, so text reads right on the cookie.
Wax sealA 25 mm round head (a common seal size), relief 1.5 mm, lines at least 0.8 mm, stick handle. Chill the stamp before each press: PLA softens near hot wax. Mirrored.

The options

MirrorOn by default. A stamp prints a mirror image of its face, so the face is flipped to make text read right on the paper, clay or cookie. Turn it off only for symmetric designs or a stamp you will look at, not press.
ShapeRectangle, rounded rectangle, circle, or follow the outline: a plate that hugs the design with the margin you set (separate parts are joined).
SizeThe width of the stamp face in mm (the diameter for a circle). With keep aspect on, the height follows the design; turn it off to set both.
Base and reliefBase is the flat plate under the design; relief is how far the design stands up from it.
Border ringAn optional raised frame round the edge, at the width you set. It gives the print a clean edge and helps the stamp sit level.
HandleNone (glue it to a wooden block), a knob, a block grip with a waist for your fingers, or a long wax-seal stick.

Want your logo as a full 3D model, not just a stamp?

Turn an image into 3D with AI: upload your logo, mascot or product photo and get a printable 3D model with depth on every side. Or describe an object in words and get an STL. The AI generators use credits; this stamp generator does not.

Turn an image into 3D with AI →Text to STL

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Stamp generator FAQ

Type your text or upload a logo at the top of this page, pick the stamp type, set the size and handle, and press Download STL. Slice the STL with the handle on the bed and the face up, and print. No signup and no install.
A stamp prints a mirror image of its face, like a rubber stamp or a printing block. The generator flips the design for you (Mirror is on by default) so the impression reads the right way. The "Printed impression" preview shows what you will get on paper.
About 1.5 mm for ink stamps and wax seals, around 3 mm for clay, soap or leather, and around 4 mm for cookie and fondant stamps, where soft dough would fill a shallow design. These are the presets; you can set anything from 0.4 to 8 mm.
With a 0.4 mm nozzle, keep lines at least 0.6 mm wide for ink, 0.8 mm for wax, 1 mm for clay and 1.2 mm for cookie dough. Thinner lines may not print, and narrow gaps fill with ink or dough. The impression preview marks them in red.
Handle down, face up. The relief is then the last thing printed, so its top surface is flat and sharp with no support marks. With a knob or stick handle the plate overhangs it, so turn on supports under the plate edge (tree supports work well). The block grip and a stamp with no handle need no supports.
Use food-safe materials and practices; FDM prints are hard to clean, because food and bacteria can stay in the gaps between layers (Oklahoma State University Extension, "3-D Printed Parts for Food Contact"). Many bakers use a printed stamp once for a batch, or press through a sheet of baking paper or cling film.
Only stamp logos and designs you own or have permission to use. The generator does not check, and a trademark or someone else’s artwork stays theirs even on a stamp you made.
No. Tracing and the 3D model are made in your browser. Only the open-source geometry engine (manifold-3d) is downloaded once from a public CDN. No account, no credits and no watermark.