Free Sri Yantra Grid Generator

The difficulty is concurrency. In a correct figure, the triangle edges are required to meet at shared points: a vertex is not merely near a crossing, it is exactly at it, and this has to hold simultaneously across the whole figure. Move one triangle a hair to fix one meeting and you break others somewhere else. The constraints are coupled, so the drawing cannot be corrected locally — which is precisely the situation freehand and compass work handle worst, and the reason the figure has attracted mathematical attention rather than being treated as decoration. The Sri Yantra reference page sets out the construction and the scholarship on both, with sources.

This is why the practical failure mode is scale. A yantra copied by eye, or traced from a low-resolution image found online, holds together at the size it was copied at. Enlarge it for a canvas, a wall or a tattoo and the near-misses open into visible gaps: triangle vertices land beside crossings instead of on them, and the lotus rings stop being concentric with the triangle field. The error was always present; enlargement only made it legible.

A computed overlay removes that failure mode rather than mitigating it. The figure is regenerated from its definition every time it is drawn, at whatever size the canvas is, so there is no fixed-resolution original to degrade from. Exporting SVG makes the property permanent: the output is a set of paths a cutter or plotter can scale without loss, which is what a stencil workflow actually needs. Exporting raster at 600 DPI covers the print case, sized to the paper rather than to the screen.

What it does not do is replace learning the construction. Drawing the yantra by hand is a discipline with its own long history, and a generated figure is a template, not a substitute for that practice. The honest division is: use this page when you need the figure produced accurately for a piece of work, and use the reference page when you want to understand how the figure is built and why the concurrency condition is hard to satisfy. Both are free, and neither asks for an account.

The setting that decides whether an exported yantra is usable is line weight, and it is surface-dependent rather than universal. The figure is unusually sensitive to it because so much of its structure sits near the centre: the innermost triangles converge on the bindu, so lines that are comfortable at the outer bhupura can merge into a solid patch in the middle. The centre is the part of the figure people look at.

Three cases cover most work. For a tattoo stencil, the line has to survive transfer and then survive skin, so it wants to be heavier than looks right on screen — and because the innermost triangles are where heaviness closes up first, it is usually better to size the whole yantra larger than to thin the line. For a mural cartoon, the line only has to be visible while you transfer it and will be painted over, so weight matters less than tiling accuracy; export SVG and scale, or print tiled at A2 and register the sheets on the bhupura's outer square, which is the only straight edge in the figure and therefore the easiest thing to align. For print — a meditation card, a poster, a study sheet — the constraint is the printer rather than the geometry: 600 DPI on A4 resolves the central triangles cleanly, and the useful adjustment is opacity rather than width when the yantra sits over a photograph.

Colour follows the same logic. On a white ground the default dark line is right. Over a photograph, sampling a colour out of the image with the eyedropper and dropping opacity a little makes the yantra read as part of the picture instead of a sticker on top of it — the difference between an overlay that documents a composition and one that belongs to it. Because the styling is per overlay, a yantra stacked with a transfer grid can be inked dark while the grid stays faint, which is what you want when both are on screen at once.