Most of these yantras were produced with Inkscape. Others are scans or photos made from yantras executed in water colours. They are hereby placed in the public domain. Enjoy!
Note that, in addition to the .jpg format directly accessible from this page there are also .png and .gif (with transparent background) versions available in separate directories. .svg's are available on request.
Note also that the images on this page are scaled down. You can see a full size version of the images by telling your browser to "View Image" or something of the sort.
The best source of information about yantras and their symbology I've found is the book "Yantra --- The Tantric Symbol of Cosmic Unity" by Madhu Khanna. The book "Tools for Tantra" by Harish Johari contains a lot of useful practical information on how to construct yantras in general and a complete coloured set of the Mahavidya yantras, some of which where also used as inspiration for those displayed here. The book "Tantra --- The Indian Cult of Ecstasy" by Philip Rawson also contains several nice classical yantra images.
Most yantras are enclosed in a square outer form with four gates, a Bhupur. The square represents the material world and the gates are the entry points into the yantra. The construction of Bhupur I've used for most of these yantras is given here.
If you are looking for Chakra images they are available here.
Nava-yoni means "nine wombs" and refers to the nine triangles placed as five Śakti (downward pointing) and 3 Vahni (upward pointing) triangles placed in a chakra (circle) around the central yoni (Śakti) triangle.
Traditionally this yantra is often displayed over black waters and without the Bhupur (surrounding square with its four "gates" or entry points into the yantra). The construction used for this yantra is described here.
Kālī is a "fierce" and "terrifying" form of Devi worshipped in many forms of Shaivism. Kālī represents the disintegrative force in nature as displayed in the passage of time (Kāla) or increase of entropy. Kali is black but the other colours used in the yantra (red, yellow, green and white) are also part of her traditional representation.
This form of the Kālī yantra is used for her representation as one of the ten Mahavidyas or main forms of Devi. The geometry of the central portion is similar to the one used above. Note however, how an additional Shakti triangle is "hidden" by the circle and ring of lotus petals circumscribing the central portion of the yantra. This probably signifies the "hidden" true nature of Devi as Maya (illusion). Note also how the the colours used here are much lighter and harmonious than in the fiercer representation above. This may reflect a preference for more pleasing forms in the Dakshina marga tantric tradition.
This yantra representing the Śyama form of Kali is interesting for its unusually asymmetric form. This is probably also an expression of the iconoclastic nature of the Vama marga (left hand path) form of Tantra. Note also the variation of the surrounding Bhupur (gates)
This watercolour is a variant of the yantra where the artist has tried to adapt the traditional representation into a more symmetric frame. In this case colours traditional to Kali has been used.
Chinnamasta is one of the ten Mahavidyas. She is usually depicted beheaded and with her life's blood springing out of her open neck. This yantra (and the previous one and the Tara below) are adaptations of material found at the excellent Shiva Shakti Mandalam site (also available at mirror).
Other forms of Chinnamasta yantra are dominated by black or very dark colours. Here is an example adapted from Yohari's book
Tara exist in various forms, both in Buddhism and in Tantra. All Tara yantras I've come across share the central element of a single Shakti triangle. The one depicted here has tantric origins.
Śrī or Shree is a name of the goddess Laksmi or Sundari. The yantra and its worship is described in the classic Sanskrit text Sundari Lahari. The Shree yantra itself is probably the most famous and certainly the most complex of all yantras and an amazing geometrical construction. Notes on the construction of this yantra are here.
Ganesha is regarded as a helper in overcoming obstacles and as a patron of students, generally. The textual description given at Shiva Shakti Mandalam indicates that the central hexagon should be circumscribed a central vahni (upward pointing) triangle, instead of, as here, inscribed in it. A black and white version is here.
Durga a the warlike form of Devi who is protector of the dharma --- the world order.