Silver nanoparticles (SNPs) are particles of silver between 1- 100 nm in size. Over the past few decades, nanoparticles of noble metals such as silver have been found to exhibit significantly distinct physical, chemical, and biological properties from their bulk counterparts. Nano-sized particles of less than 100 nm in diameter are attracting the scientific community for the wide range of new applications in various fields of industry. Such nano-powders can exhibit properties that differ substantially from those of bulk materials, as a result of small particles dimension, high surface area and quantum confinements. Most of the unique properties of nanoparticles require not only the particles to be of nano-sized, but also the particle be dispersed without agglomeration. Toxicological aspects of silver nanoparticles are yet to be found particularly in humans. Thus, this paper discusses the synthesis, applications and toxicity of silver nanoparticles through available reports.