The Makasar script, also known as Ukiri' Jangang-jangang (bird's script) or Old Makasar script, is a historical Indonesian Writing system that was used in South Sulawesi to write the Makassarese language between the 17th and 19th centuries until it was supplanted by the Lontara Bugis script.
The Makasar script is an abugida which consists of 18 basic characters. Like other Brahmic scripts, each letter represents a syllable with an inherent vowel /a/, which can be changed with diacritics. The direction of writing is left to right. This script is written without wordspacing (scriptio continua) and with little to no punctuation. "Coda syllables", or consonants at the end of syllables, are not written in the Makasar script, so a Makasar text can contain a lot of ambiguity which can only be distinguished from context.
Scholars generally believe that the Makasar script was used before South Sulawesi received significant Islamic influence around the 16th century AD, based on the fact that Makasar script uses the abugida system based on the Brahmi script rather than the Arabic script which became commonplace in South Sulawesi later on. This script has its roots in the Brahmi script from southern India, possibly brought to Sulawesi through the Kawi script or another script derived from Kawi. The visual similarity of the South Sumatran characters such as the Rejang script and the Makasar script has led some experts to suggest a relationship between the two scripts. A similar theory is also elaborated by Christopher Miller who argues that the scripts of South Sumatra, South Sulawesi, and the Philippines descend from the Gujarati script, which originates in India.
However, in Stephen C Druce's opinion, it remains debatable as to whether the Makasar script was in use before the 17th century AD. This script is full of curls, curves, bridges and much more suited to being written with ink on paper rather than inscribed on palm-leaf. The Makasar script may thus have been a later innovation, which was developed from the Lontara Bugis script after paper had become available in the early 17th century AD.