Stencil Maker
Make a cut-out stencil from a photo, drawing, logo or your own text. Adjust the threshold, let the tool add bridges so the middles of letters like O, A and R do not fall out, then print it at any size across several pages or download an SVG for a cutting machine.
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High-contrast pictures, silhouettes and logos work best.
Stencil
Print size
cut out stencil sheet bridge
How to use the Stencil Maker
- Choose Text or Image. Type a word or short phrase and pick a font, or choose a high-contrast photo, silhouette or logo.
- Adjust the threshold (for images) until the black areas show what you want to paint. Press Auto for a good starting point and use Smooth edges to remove ragged outlines.
- Check the bridges. Islands such as the center of an O are connected to the rest of the stencil with orange bridges. Change the bridge width, or turn on two bridges for large islands.
- Set the print size: enter the finished width and paper size. The preview shows where the pages split.
- Download the tiled PDF and print at 100%, or get the PNG or SVG. Cut out the black areas with a craft knife or cutting machine.
How the stencil is made
- Black and white. Every pixel darker than the threshold becomes a cut-out area. The Auto button uses Otsu's method, which picks the threshold that best separates the image into two groups of light and dark pixels.
- Clean-up. Tiny cut-outs and tiny loose pieces smaller than the “Remove specks” size are filled in, because they are impractical to cut.
- Island detection. The remaining stencil sheet is split into connected pieces. The piece that touches the border is the main sheet; every other piece is an island that would fall out.
- Bridges. For each island, the tool searches outward through the cut-out area to find the shortest route back to the main sheet, then paints a bridge of the chosen width along that route. Large islands can get a second bridge on the opposite side so they do not twist.
Bridge and material guide
| Stencil use | Typical width | Suggested bridge | Material |
|---|---|---|---|
| Cards, journals, cookies | 2–6 in (5–15 cm) | 1/16–1/8 in (2–3 mm) | Card stock, food-safe Mylar |
| T-shirts and tote bags | 8–12 in (20–30 cm) | 1/8 in (3 mm) | Freezer paper, adhesive stencil vinyl |
| Wood signs | 10–24 in (25–60 cm) | 1/8–3/16 in (3–5 mm) | Adhesive vinyl, Mylar |
| Walls, floors and pavement | 24 in (60 cm) and up | 1/4–1/2 in (6–12 mm) | Thick Mylar, poster board, thin plastic sheet |
Tips for clean stencil painting
- Choose bold shapes. Heavy fonts and simple silhouettes are much easier to cut than thin script lines.
- Cut the smallest details first while the sheet is still stiff, and use a fresh craft knife blade.
- Hold the stencil flat with repositionable spray adhesive or painter's tape so paint cannot creep under the edges.
- Use little paint. Dab with a nearly dry stencil brush or sponge, or spray light coats from about 8–12 in away.
- Touch up bridges after removing the stencil with a small brush if you want solid letters without gaps.
- For a coloring outline instead of a cut-out, try Photo to Coloring Page; to print any picture large without changing it, use Print Image on Multiple Pages.
Frequently asked questions
What are stencil bridges and why do I need them?
An island is a piece of stencil material completely surrounded by a cut-out area, like the middle of an O, A, B, D, P, Q or R. When you cut the stencil, islands fall out and the letter fills in with paint. A bridge is a thin strip that connects the island to the rest of the sheet so it stays in place. This tool finds every island and adds the shortest bridge automatically.
How wide should the bridges be?
Wide enough that they will not tear when cut and handled. For paper or card stencils about 1/8 in (3 mm) works well; for larger wall or sign stencils use 1/4 in (6 mm) or more. The bridge width readout under the slider shows the printed size for your chosen stencil width.
What kind of picture makes a good stencil?
Simple, high-contrast images with clear shapes: silhouettes, logos, bold drawings and portraits with strong lighting. Busy backgrounds and soft shadows create many small specks. Crop the photo to the subject first, then use the threshold, Smooth edges and Remove specks controls.
How do I print a large stencil on several pages?
Enter the finished width, for example 24 in, and choose the paper size. The PDF splits the design into numbered pages with a 0.5 in overlap. Print at 100% (Actual size), trim one edge of each page, line up the dashed overlap lines with the next page and tape the sheets together before cutting.
Can I use the SVG with Cricut or Silhouette?
Yes. The SVG contains a single filled path for all cut-out areas, sized to the stencil width you entered. Import it into Design Space, Silhouette Studio or a laser cutter program; you may need to set the operation to cut and check the size after import.
What material should I cut the stencil from?
Card stock or file folders work for a few uses, Mylar or stencil film (about 5–10 mil) for reusable stencils, and freezer paper ironed shiny side down is a classic for fabric painting. Adhesive vinyl is popular for walls, glass and signs.
What does Invert do?
Normally the dark areas of the design are cut out and paint goes through them. Invert swaps this, so the background is cut away and the shape stays as material, which creates a reverse or negative stencil, like a silhouette painted around.
Are all the tools on FreeToolCabin tested for quality and accuracy?
Yes! Every tool on our site undergoes automated Q/A testing in real browser environments to ensure high precision, correct output, and zero errors. If you happen to spot a bug or have a suggestion, please contact us at [email protected] and our team will review it right away.