Kurixalus chaseni was removed from synonymy with K. appendiculatus (Mediyansyah et. al. 2019; Truebia 46, 51–72). K. appendiculatus is now restricted to frogs outside Borneo, particularly Philippines. The Bornean K. chaseni is a very common lowland species in East Mlaysia. 

The coloration is variable, with shades of brown, grey, and green, and mimics a tree's bark. Day and night colorations are different. Size is usually less than 40 mm in males and up to 50 mm in females.

The species lives in swampy areas with bodies of standing water or intermittent streams. This species appears to be ecologically adaptable and can be found in the forest and in forest edge situations, and tolerates altered habitats to some extent. 

Males call from around swampy areas, depressions or ponds with soft sand-silt bottom in the forest. Calling males can be found around such forest floor depresseions even during dryer periods when there is no standing water; they seem to anticipate the next rainfalls and filling of these temporary ponds. The call is relatively complex and includes soft clicks.

The tadpoles of this species are small, they grow up to only 25 mm total length. In size and general body shape they resemble a bufonid tadpole, but differ from bufonids in mouthpart keratodont rows. The generalist type tadpoles live in stagnant water. The tail tip is moderately pointed. The iris has a coppery hue.