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printastencil.com

Solder paste stencils for PCBs from KiCad Gerber or SVG files, as a printable STL

printastencil.com is a free browser tool for hobby SMD soldering with solder paste. Free with no account and no paid tier seen; the code is MIT-licensed open source. Exports STL. Last checked 26 September 2026.

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Opens printastencil.com

At a glance

Price: Free with no account and no paid tier seen; the code is MIT-licensed open source
Runs on: Browser
Exports: STL
Multicolor: No, single color
Account: Not needed
Open source: Yes
Skill level: Easy: a few settings to tune
Best for: Hobby SMD soldering with solder paste
Selling prints: Allowed The site has no terms page and the code is MIT licensed, which allows commercial use; the stencil is built from your own board files
How we checked: Opened the generator Opens without an account: paste and edge cuts drop zones, 0.12 mm default thickness, board lip and panel settings, 3D preview with pad count and Download STL
Last checked: 26 September 2026

Open generator

Sources: printastencil.com generator, svg2stencil README on GitHub, svg2stencil MIT licence (checked 26 September 2026)

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What is printastencil.com?

printastencil.com is a free browser tool that turns the solder paste layer of a circuit board into a 3D-printable stencil. You drop in the paste layer exported from KiCad, either as a Gerber file (.gtp, .gbp, .gbr and similar) or as an SVG plot, and it builds a thin plate with an opening over every pad. Width and height are filled in from the pad layout, thickness starts at 0.12 mm, and you check the result in a 3D preview you can rotate before saving it as an STL.

If you also load the board's edge cuts file, the stencil is sized to the PCB outline and gets a locating lip: a low wall that wraps around the board edge so the stencil drops into place without lining it up by eye. Lip height, wall thickness and fit clearance are all adjustable. A selection mode lets you drag across the preview to switch pads on or off, and a panel option lays out up to 20 columns and rows of boards.

It suits hobbyists who assemble small runs of SMD boards and want a quick stencil instead of ordering a steel one. Processing stays in your browser and the code is MIT-licensed open source.

What you can make

SMD solder paste stencils
Stencils with a board-locating lip
Stencils sized to the board outline
Panelized stencils for several boards

How to use printastencil.com

Export the paste layer from KiCad as a Gerber or SVG file
Drop it in, and add the edge cuts file if you want a board lip
Set the thickness, lip fit and any panel columns or rows
Toggle off pads you want to skip in the preview
Download the STL and print it

What you'll need to print it

Filament and parts that suit what you make with printastencil.com.

0.2 mm nozzle

Resin

Siraya Tech Fast ABS-like Resin (affiliate link) Siraya Tech
Siraya Tech Blu Tough Resin (affiliate link) Siraya Tech

PETG

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printastencil.com pros

The board lip seats the stencil on the PCB without manual alignment
Reads KiCad Gerber and SVG paste layers directly, no conversion step
Free, open source and runs fully in the browser with no sign-up

printastencil.com cons

You need your own PCB design files, ideally from KiCad, to start
The default plate is only 0.12 mm thick, and the page warns that pads under 0.1 mm may not print cleanly on FDM, so a fine nozzle or resin printer helps
Exports STL only, and the README notes the mesh may need a quick repair in the slicer