Here's a list of some of the Asian low-cost carriers/airlines.
This is not a complete list.
Add anymore you may know of or flew on.
China
Spring Airlines
India
Air India Express
GoAir
IndiGo
JetKonnect
SpiceJet
Indonesia
Citilink
Lion Air
Indonesia AirAsia
Japan
AirAsia Japan
Hokkaido International Airlines (Air Do)
JAL Express
Peach
Skymark Airlines
Solaseed Air
StarFlyer
Jetstar Japan
South Korea
Air Busan
Eastar Jet
Jeju Air
Jin Air
T’way Airlines
Malaysia
AirAsia
AirAsia X
Firefly
Maswings
Pakistan
Air Blue
Shaheen Air
Philippines
AirAsia Philippines
Airphil Express
Cebu Pacific
SouthEast Asian Airlines
Spirit of Manila Airlines
Zest Airways+
Sri Lanka
Mihin Lanka
Singapore
Jetstar Asia Airways
Tiger Airways
Scoot
Thailand
Nok Air
Thai Smile
Thai AirAsia
Orient Thai Airlines
Nok Mini
Solar Air
Happy Air
Vietnam
Jetstar Pacific
VietJet Air
Air Mekong