UD5 Toolkit
Online Dice Roller - Virtual Dice Simulator
Simulate rolling dice for board games, RPGs, and decision making. Choose number of dice and faces. Fun, lightweight, and no download required.
Papercraft Dice & Cone Generator – Online Custom Nets
🎲📐 Papercraft Dice & Cone Net Generator
Generate printable foldable nets for custom dice and cones — with glue tabs, live preview & one-click download.
Dice Settings
15mm28mm60mm
3mm5mm12mm
📄 Print area: ~120 × 90 mm
Solid lines = cut | Dashed lines = fold | Gray tabs = glue area
Cone Settings
10mm35mm80mm
15mm80mm150mm
3mm5mm12mm
Slant Height87.3mm
Arc Angle144.2°
Base Circumf.219.9mm
📄 Print area: ~190 × 175 mm
Sector = cone side | Circle = base | Solid = cut, Dashed = fold | Gray = glue tabs
Frequently Asked Questions
What is a papercraft net (or template)?
A net is a 2D unfolded pattern that, when cut out and folded along indicated lines, forms a 3D shape. For a cube (dice), the net is a cross-shaped arrangement of 6 connected squares. For a cone, the net consists of a circular sector (the curved side) and a circle (the base). Nets are the foundation of papercraft and geometric modeling.
How do I print and assemble the dice net?
Download the PNG, print it on thick cardstock (200gsm or more). Cut along solid outer lines. Use a ruler and a blunt tool (like a dried-out pen or scoring tool) to pre-crease the dashed fold lines. Fold inward, apply glue to the gray tabs, and press firmly until dry. For best results, use white glue or a glue stick applied sparingly.
What do the dashed and solid lines mean?
Solid lines are cutting lines — you cut along these with scissors or a craft knife. Dashed lines are fold lines — you fold the paper along these (usually inward for a clean finished look). The gray-shaded flaps are glue tabs where adhesive is applied to join faces together.
How is the cone net calculated?
The cone's side unfolds into a circular sector. The sector's radius equals the slant height (l = √(r² + h²)), and its arc length equals the base circumference (2πr). The sector angle is θ = 360° × (r / l). The base is a separate circle of radius r, with small tabs to attach it to the curved side. All calculations update live as you adjust the sliders.
Can I customize what appears on each dice face?
Yes! Switch the Face Style to "Custom Text / Emoji" and type any short text, symbol, or emoji into each of the 6 face fields. You can create story dice, decision dice, alphabet dice, or themed game dice. The text automatically scales to fit each face.
What paper size should I use for printing?
The estimated print area is shown below the download button. Most standard dice nets (20–35mm face size) fit comfortably on A4 or Letter paper. For larger dice or cones, you may need A3 or tabloid paper, or you can scale the downloaded PNG in your printer settings. Always check "Actual Size" or "100% Scale" in your print dialog to avoid unintended scaling.
Why is my printed net the wrong size?
This usually happens when your printer applies automatic scaling. In your print dialog, look for options like "Scale: 100%" or "Actual Size" and disable any "Fit to Page" setting. The downloaded PNG has the correct pixel dimensions corresponding to your chosen millimeter sizes at 96 DPI screen resolution. For precision-critical projects, verify with a ruler after printing.
Random Chord Progression Dice – Roll a New Song Idea
Roll virtual dice to generate a 4‑chord progression in a random key. Includes common pop, jazz, and indie progressions with playback.
Papercraft Unfolder – Convert a Simple 3D Shape to Net
Select a simple 3D shape (cube, pyramid, cylinder) and generate a printable flat net with fold tabs. Great for DIY crafts and math class.
Melody Dice Roller – Random Musical Idea Generator
Roll musical dice to generate random melody snippets. Choose a scale, set note range and rhythm, and get an instant starting point for your next composition.
RPG Dice Roll Analyzer – Online Probability of 4d6 Drop Lowest
Simulates 4d6 drop lowest many times and shows average stat array. Character creation helper.
Dice Probability Calculator - Online Sum Distribution & Odds
Calculate probability of getting a specific sum when rolling multiple dice. Visual bar chart. Useful for tabletop RPG players. Instant local computation.
Multi Dice Roller - Online 3D Animated Dice
Roll virtual dice with animated 3D spins. Choose any number and type. See total and individual results. Fun for games.
Dice Roll Simulator & Stats - Online Massive Roll Trials
Roll any number of dice thousands of times and see a live bar chart of the sum distribution. Great for game designers.
Dice Probability Heatmap - Online Visual Stat Calculator
Visualize the probability distribution of dice rolls as a color‑coded heatmap. For any NdM combination. RPG strategist's dream.
Dice Roll Probability Calculator - Online Sum & Graph
Select the number and type of dice, then view the exact probability for each possible sum as a bar chart. Great for board game strategy. Local computation.
Pig Dice Game - Online Risk & Hold Turn-Based
Play the Pig dice game: roll to accumulate points, but a 1 ends your turn. First to 100 wins. Simple hot‑seat local game.
Dice Notation Roller - Online 2d20, 4d6 Drop Lowest RPG Tool
Enter standard dice notation (e.g., 2d8+3, 4d6k3) and see the roll result and individual dice. Must for tabletop RPG.
Random Number Generator - Online RNG Between Range
Generate truly random numbers within a specified range. Useful for contests, game decisions, and sampling. Runs locally, no hidden algorithms.