Maze Generator — Printable PDF

What you can do with this maze generator

This tool builds printable mazes scaled to A4 or US Letter paper. Pick a grid size, select easy, medium, or hard difficulty, and choose between three maze types: perfect mazes with one unique solution, braided mazes that include loops and alternate routes, or room-based layouts that carve larger open chambers into the grid. You can also print a second page showing the solved path, useful for answer keys or checking your own work.

What you can customise

• Grid size — from small grids for young children to large grids that fill the page with hundreds of cells.
• Difficulty — easy (wider paths, fewer dead ends), medium (balanced), or hard (narrow corridors, many false turns).
• Maze type — perfect (one solution, no loops), braided (multiple paths, loops allowed), or rooms (open chambers connected by corridors).
• Line thickness — thin, medium, or thick walls to suit your printer and eyesight.
• Start and finish placement — opposite corners or random locations on the grid edges.
• Solution overlay — include or omit a second page with the solved path drawn in.
• Seed value — enter a number or word to reproduce the exact same maze later, or leave blank for a random design.

Who this maze generator is for

Teachers

Print a stack of mazes for early finishers, morning work, or brain breaks. The difficulty slider lets you match the challenge to age groups, and the solution page makes marking faster.

Parents and homeschoolers

Keep children occupied on rainy afternoons or long car journeys. Save a seed value to regenerate a favourite maze if the printout gets lost.

Puzzle enthusiasts

Generate hard, large-grid mazes with braided loops for a longer solve. The random seed ensures you never see the same layout twice unless you want to.

How to use the tool

1. Choose your maze type: perfect for a classic puzzle, braided for variety, or rooms for a different visual style.
2. Select difficulty (easy, medium, or hard) and adjust the grid size slider to control how many cells fill the page.
3. Pick line thickness and decide whether start and finish should sit in opposite corners or random edge positions.
4. Tick the solution checkbox if you want an answer-key page included in the PDF.
5. Optionally enter a seed (any number or word) to make the maze reproducible.
6. Click generate and download your branded PDF, ready to print on A4 or US Letter paper.

Worked classroom example

A Year 4 teacher needs 30 unique mazes for a Friday activity. She sets the tool to medium difficulty, grid size 20, perfect maze type, and medium line thickness. She leaves the seed blank and clicks generate 30 times, saving each PDF with a number in the filename. She ticks the solution box on one generation to print a master answer key for herself. On Friday, each child gets a different maze; the variety keeps trading and comparing answers to a minimum, and the teacher can quickly check finished work against her solution sheet.

Methodology: recursive backtracker with carve variants

The generator uses a depth-first recursive-backtracking algorithm to carve paths through an initialised grid of walled cells. For perfect mazes, carving stops when every cell is visited once, guaranteeing a single solution. Braided mazes add a second pass that removes some dead ends by opening extra walls, creating loops. Room-based mazes carve clusters of adjacent cells into open chambers before running the main algorithm. A breadth-first search computes the solution path from start to finish.

Designed for A4 and US Letter printing

The PDF scales automatically to fit both A4 (210 × 297 mm) and US Letter (8.5 × 11 inch) paper without clipping. Margins are set to keep walls away from the edge, so even older printers with large unprintable zones will produce clean results. Print at 100 per cent scale; shrink-to-fit is unnecessary and may make narrow passages harder to follow.

Notes and limitations

• Very large grid sizes (above 50 × 50) may produce walls too thin to see clearly when printed; test a sample before printing many copies.
• Braided mazes do not guarantee multiple distinct solutions—they guarantee loops, which may or may not create alternate solution paths depending on start and finish placement.
• The room-based layout carves fixed-size rectangular chambers; you cannot specify custom room shapes or positions.
• Solution paths are drawn as a continuous line; no step-by-step waypoint markers are included.
• The tool does not support colour fills, shading, or themed graphics inside the maze.