Free Custom Stamp Generator
Free · No signup · Runs in your browser

Free 3D Stamp Maker
& Stamp STL Generator

Type text or upload a logo to create a custom rubber stamp. Get a free stamp STL file in seconds — works with any FDM or resin printer, no signup needed.

Stamp3D is the free 3D stamp maker that runs entirely in your browser. Enter text or upload a logo, choose rectangle, circle, or oval — your custom stamp STL file is ready to download in under a minute. No software, no account, no cost.

Stamp shape
3
0
Stamp content
Auto-fit text size
  • Bold Block
  • Rounded Bold
  • Classic Serif thin strokes
  • Lora Serif thin strokes
  • Times Serif thin strokes
  • Monospace
  • Typewriter thin strokes
px

Drop image here or click to upload

PNG, JPG, SVG · Best results with high-contrast B&W images · Color images auto-convert to B&W

Stamp dimensions
mm
mm
mm
Water 1.2mm
General 2.0mm
Oil 2.5mm
Fabric 3.5mm
Bevel relief edges — cleaner ink transfer, no overhangs
0mm
Print settings
Bambu, Prusa, Elegoo Centauri, Creality, Voron, etc. Use TPU filament for best results.
I have TPU filament
TPU gives better ink transfer · requires a filament dryer
Mirror text in STL output

Preview always shows correct reading direction. The downloaded STL is mirrored so your stamps read correctly on paper.

Printing in PLA

  • Stamp: PLA · face-DOWN on bed · 0.1–0.15mm layers · 80% infill · standard speed
  • Handle: same PLA spool · any orientation — one material, one print run
  • PLA stamps are rigid — use acrylic craft paint applied by brush rather than an ink pad
  • Sand the stamp face with 400-grit after printing for a smoother surface and better paint uptake
  • For ink pads: upgrade to TPU for much better results (toggle above)
🎯 PLA filament 🎨 Acrylic paint 🔩 M3 nut + bolt kit 🔧 M4 heat-set inserts
Handle attachment
None Flat back. Glue your own handle.
Integrated One-piece print. No assembly.
Live preview
Stamp face · raised areas will transfer ink
Stamp size 60 × 30mm
Total height 17mm
Relief 2.0mm
Est. print time ~45 min
Filament ~8g
Material cost ~$0.11
date
📲 On iPhone/Android: After download, share via AirDrop, iCloud Drive, or Google Drive to your computer — then open in your slicer. Bambu users: share to Bambu Handy to slice and send directly to your printer.
✓ STL file generated and downloading!
Questions or issues?

Stamp3D is in active development. If something isn't working or you have a question, let us know — we read every message. Your current stamp design is attached to your message so we can reproduce what you're seeing — clear the text first if you'd rather not send it (privacy).

Generating STL…
Processing image data
Tips & Tricks
Everything you need to get great stamps from your first print

Getting the best print quality

  • Dry TPU 8h at 65°C before printing — moisture causes stringing that fills in fine text. This is the #1 cause of failed stamp prints. A food dehydrator works perfectly.
  • Print at 20–30mm/s. TPU is flexible and jams at high speed
  • Use 0.1mm layer height (not 0.15mm) for text stamps — the difference is visible
  • A 0.2mm nozzle dramatically improves small text — letters under 5mm become crisp where a 0.4mm nozzle fails
  • Enable ironing on the top surface (2% flow) in your slicer for the smoothest stamp face
  • 95A TPU is easiest to print. For softer stamps try Fiberflex 40D or VarioShore TPU
  • Sand the stamp face with 400-grit for better ink uptake — for TPU, wet sand (a little water on the paper) to prevent the sandpaper from clogging and going fuzzy
  • Flatness check: color the stamp face with a Sharpie marker, then sand in a figure-8 pattern on a flat surface. Stop when all marker is gone — any remaining ink shows a high spot
  • PLA stamp still rough? Coat the face with a few thin layers of Plasti-dip or clear nail polish — adds grip texture and seals the layer gaps so more ink stays on the surface

Design tips

  • Keep text at least 4–5mm tall — smaller than that and most FDM printers lose detail
  • Use Bold Block or Rounded Bold for FDM — thin-stroke fonts (serifs, Typewriter) lose detail below 8mm letter height
  • For logos, high-contrast black and white works best — avoid gradients or halftones
  • Leave at least 2mm of margin between text and the border
  • Arc text works great for names, dates, or "Made with love" around a circle stamp
  • For address stamps, a wider rectangle (70×30mm+) fits more text comfortably

Ink & stamping technique

  • Water-based ink pads (StazOn, Versacraft) work well with TPU — use 1.5–2mm relief
  • Oil-based pads need slightly deeper relief (2–2.5mm) to hold enough ink
  • Prime a new stamp by pressing it on a VersaMark clear watermark pad before first use — the residue helps regular ink adhere more evenly on the next stamp
  • Place a soft mat (silicone baking mat, mousepad, folded felt) under the paper when stamping — the give compensates for any slight unevenness in the stamp face
  • Press straight down with even pressure — rocking causes blurry edges
  • Re-ink every 2–3 stamps for consistent results
  • Clean with a baby wipe or damp cloth immediately after use
  • PLA stamps work too with acrylic craft paint applied by brush

Printer compatibility

Works with any FDM printer. STL is the universal format — just import into your slicer.

Bambu X1/P1/A1 Elegoo Centauri Prusa MK4/XL Creality K2 Voron Any FDM printer
  • Direct drive extruders handle TPU better than Bowden setups
  • Bambu: load TPU externally — not through AMS (except AMS HT)
  • Elegoo Centauri Carbon: direct drive, handles TPU well at 30mm/s
  • Resin (MSLA/SLA): mix 80% flexible + 20% standard resin — prints reliably, true rubber feel. Don't over-cure or it goes brittle.
Supplies
Everything you need to print and use your stamps — curated picks. Some links below are Amazon affiliate links — we may earn a small commission if you buy, at no extra cost to you.

FDM Printers

Any FDM printer works. These are the most popular for stamp-making.

Bambu Lab P1S Bambu Lab A1 Mini Elegoo Centauri Carbon Prusa MK4 Creality Ender 3 V3

TPU Filament

95A TPU gives the best stamp feel. Dry it 8h at 65°C before printing.

Polymaker TPU 95A SainSmart TPU Overture TPU 95A Bambu TPU

PLA Filament

For rigid stamps painted with acrylic — or for handles.

Bambu PLA Basic Hatchbox PLA Overture PLA Prusament PLA

Filament Dryers

Essential for TPU. Wet filament causes stringing that ruins stamp detail.

Sunlu FilaDryer S2 Bambu AMS Dry Box eSUN eBOX Lite Food Dehydrator (DIY dryer)

Ink Pads & Paint

Water-based pads work great with TPU. Brush-on acrylic for PLA stamps.

StazOn Ink Pad Versacraft Ink Pad Rainbow Ink Set Acrylic Paint Set

Hardware & Tools

For attaching handles or finishing prints.

M3 Bolt & Nut Kit M4 Heat-Set Inserts 400-grit Sandpaper Flush Cutters
FDM vs Resin
Everything you need to know about choosing and using each technology for stamps

Which printer is right for you?

The single biggest factor is how small your text needs to be.

  • Choose FDM if your letters are 5mm+ tall, you already have a filament printer, and you want a simple one-step workflow. Text stamps, address stamps, bold logos — all work great.
  • Choose resin if you need fine detail: small text (under 4mm), intricate logos, thin line art, or you want results that look like a commercial photopolymer stamp.
  • FDM is easier — load TPU, print, done. Resin requires washing and UV curing but rewards you with dramatically sharper detail.
  • Don't have a resin printer? Many local libraries, makerspaces, and print services offer MSLA printing.

Minimum detail — what's achievable

FDM (0.4mm) Resin
Min letter height 4–6mm 1.5–2mm
Min stroke width ~1.2mm ~0.5mm
Layer height 0.1mm 0.05mm
Face finish Layer lines (sand) Smooth (no sand)

A 0.2mm nozzle on FDM roughly halves the minimum — small text that blobs at 0.4mm becomes crisp at 0.2mm.

FDM stamp tips

  • Material: TPU 95A is the standard. Fiberflex 40D and VarioShore TPU are softer and hide layer lines better — ideal for small text. PLA works for craft-paint-only stamps.
  • Font matters: Use Bold Block or Rounded Bold. Thin-stroke fonts (serifs, Typewriter) lose detail below 8mm letter height — strokes fall below the 1.2mm nozzle minimum.
  • Speed: 20–30mm/s. Faster speeds cause stringing that fills in letter gaps. This is non-negotiable for fine text.
  • Dry your filament: 8h at 65°C before printing. Moisture is the #1 cause of failed text stamps — it causes stringing that closes up small letters.
  • Layer height: 0.1mm. The difference between 0.1mm and 0.15mm is visible in small text.
  • Enable ironing on the stamp face in your slicer for a smoother ink surface.
  • Sand lightly with 400-grit after printing — improves ink uptake on any FDM stamp.
  • First layer settings for smoother face: raise nozzle temp +5–10°C for the first layer, drop first layer speed to 15–20mm/s, and set first layer extrusion width to 120% — this fills surface gaps and gives a flatter stamp face right off the printer.
  • Filler primer for visible lines: spray 2–3 light coats of filler primer (e.g. Rust-Oleum 2-in-1 Filler & Sandable), letting each coat dry 15–20 min. Wet sand with 400–800 grit between cycles. Two cycles is usually enough. Be careful not to sand away fine relief detail — use light pressure on the stamp face.

Resin stamp tips

  • The 80/20 trick: Mix 80% flexible resin + 20% standard resin. Prints as reliably as regular resin but has real rubber flex. Pure flexible resin alone takes many failed prints to dial in — don't start there.
  • Good flexibles: Siraya Tech Tenacious, Liqcreate Flexible-X, RESIONE F39, Formlabs Flexible 80A, Prusament Flex.
  • Orientation: Flat on build plate, face pointing away from the build platform. No supports needed. The FEP film gives the face a naturally smooth finish — no sanding required.
  • Don't over-cure: Stop UV exposure as soon as the surface is no longer tacky. Over-curing turns flexible resin brittle and rigid. This is the most common mistake.
  • Wash & cure: 2–5 min in IPA, then 5–10 min under 405nm UV. Uncured resin will degrade your ink pads.
  • Flex prints curl: Attach to a PLA handle or acrylic block before use — flexible resin stamps won't lay flat on their own.
  • Handle uncured prints carefully — they're extremely fragile before washing.
Frequently Asked Questions
Common questions about 3D printing rubber stamps
Can you 3D print a rubber stamp?

Yes — flexible filament like TPU 95A prints stamps that work exactly like traditional rubber stamps. Print the stamp face-down on your bed for the smoothest surface. FDM printers work well for text 5mm and larger; resin (MSLA/SLA) printers achieve letter heights as small as 1.5mm with sharp, clean detail. Stamp3D generates a ready-to-print STL for both printer types.

What filament is best for 3D printing stamps?

TPU 95A is the community standard — flexible, holds ink well, and prints reliably on any direct-drive FDM printer. For softer stamps, Fiberflex 40D or VarioShore TPU hide layer lines better. Dry your TPU 8 hours at 65°C before printing; moisture is the #1 cause of stringing that ruins stamp detail. PLA works for stamps used with brush-on acrylic craft paint, but is too rigid for ink pad use.

What slicer settings should I use for a 3D printed stamp?

Use 0.1mm layer height, 20–30mm/s print speed, 80% gyroid or honeycomb infill, with no supports. Print the stamp face-down on the bed. Enable ironing on the top surface (2% flow) for the smoothest stamp face. Bambu users: load TPU from an external spool — it cannot feed through the AMS or AMS Lite.

What is the minimum text size for a 3D printed stamp?

For FDM printers with a 0.4mm nozzle, keep letters at least 4–6mm tall. Below 4mm, most printers lose detail and letters merge. A 0.2mm nozzle roughly halves the minimum — text that fails at 4mm becomes crisp at 2mm. Resin (MSLA/SLA) printers handle 1.5–2mm letter heights with strokes as thin as 0.5mm. Stamp3D shows a warning when your text is approaching the FDM minimum.

Can I make a custom logo stamp with a 3D printer?

Yes — Stamp3D accepts PNG, JPG, or SVG logo uploads. PNG and JPG are automatically converted to black-and-white with an adjustable threshold slider. SVG files are processed as vector paths for smooth, clean curves in the final STL. Use a high-contrast image with clean edges for best results; avoid gradients and thin isolated strokes.

Does a 3D printed stamp work with regular ink pads?

Yes. TPU 95A stamps work with any water-based ink pad (Versacraft, StazOn, Memento) and most oil-based pads. Use 1.5–2mm relief depth for water-based pads and 2–2.5mm for oil-based. Sand the stamp face lightly with 400-grit for better ink uptake. Prime a new stamp on a VersaMark clear watermark pad before first use for the most even ink coverage.

Is Stamp3D free to use?

Yes, completely free. No account required, no email signup, no per-download fee. All STL generation runs entirely in your browser — your design is never uploaded unless you choose to share it. You can design and download as many stamps as you like.

Is Stamp3D a real stamp maker, or just a design tool?

Stamp3D is a full stamp maker, not just a flat design tool. It generates a print-ready 3D file (an STL), so the output is an actual physical stamp you 3D print — not just a picture of one. Type your text or upload a logo, pick a shape, and download a file ready to send straight to your printer. No design software or 3D modeling skill required.

How long does it take to 3D print a stamp?

A typical 50×30mm text stamp in TPU at 0.1mm layer height takes about 45–90 minutes. Smaller stamps (30mm circle) print in 30–45 minutes. A 25mm handle adds about 30–45 minutes. Stamp3D shows an estimated print time and filament cost in the preview panel as you design.

Do I need CAD software to make a 3D printable rubber stamp?

No. Stamp3D runs entirely in your browser with no software to install. Type your text or upload a logo, choose your shape and size, and click Download STL. The file works with every slicer — Bambu Studio, PrusaSlicer, OrcaSlicer, Cura, and Chitubox. You can go from blank page to ready-to-print STL in under a minute.

Stamp Guides

Clay & Pottery Stamps No mirror needed — how to design and print stamps for pottery and polymer clay. Wax Seal Stamps Circle shape, deeper relief, standard resin — how to get sharp wax impressions. Soap Stamps Cold process and melt-and-pour. Timing, sizing, and technique for clean impressions. Custom Logo Stamps Upload PNG, JPG, or SVG — logo prep, stroke width limits, and ink selection. Address Stamps Size, font, and layout guide for return address stamps that actually look good. How to 3D Print a Stamp Complete beginner guide — materials, settings, and technique from start to finish. Best Filament for Stamps TPU 95A, Fiberflex, VarioShore, and resin — compared with exact print settings. 3D Printed Stamps — All Types Hub page — FDM vs resin, every use case, materials, sizing, and FAQ.