Albums + EPs

• 꽃갈피 셋 2025-05-27
• The Winning 2024-02-20
• 조각집 2021-12-29
• LILAC 2021-03-25
• Love poem 2019-11-18
• Smash Hits 2: The Stories Between U & I 2018-09-18
• 꽃갈피 둘 2017-09-22
• Palette 2017-04-21
• Smash Hits 2016-01-08
• CHAT-SHIRE 2015-10-23
• 꽃갈피 2014-05-16
• Modern Times 2013-10-07
• Can You Hear Me? 2013-03-20
• I □ U 2011-12-14
• Last Fantasy 2011-11-29
• REAL+ 2011-02-17
• REAL 2010-12-09
• iu…im 2009-11-12
• Growing Up 2009-04-23
• LOST and FOUND 2008-09-23

Singles

• Bye, Summer 2025-09-10
• When Life Gives you Tangerines OST from the Netflix Series - Chapter 3 2025-03-22
• Love wins all 2024-01-24
• 사람 Pt.2 2023-04-07
• GANADARA 2022-03-11
• 강승원, 이집, PART.3 - Mother Nature (H₂O) 2022-01-27
• strawberry moon 2021-10-19
• Celebrity 2021-01-27
• Into the I-Land - Single 2020-06-20
• eight 2020-05-06
• Crash Landing on You 2020-02-15
• 첫 겨울이니까 2019-12-09
• Love poem 2019-11-18
• 동화 2018-12-08
• BBIBBI 2018-10-10
• 가을 아침 2017-09-18
• 사랑이 잘 2017-04-07
• 밤편지 2017-03-24
• 마음 2015-05-18
• heart 2015-05-18
• 소격동 2014-10-02
• Summer Love 2014-06-30
• 봄 사랑 벚꽃 말고 2014-04-08
• Monday Afternoon 2013-09-11
• The Age Of The Cathedrals 2013-02-13
• You & I 2012-07-18
• 스무 살의 봄 2012-05-11
• 복숭아 2012-05-04
• Good Day 2012-03-21
• 얼음꽃 2011-06-21
• My Last Love (Original Television Soundtrack), Pt. 4 - Single 2011-05-25
• 그대네요 2010-09-28
• 사랑을 믿어요 2010-08-02
• Road No.1 OST Part.3 2010-07-14
• 잔소리 2010-06-03
• Telecinema Project Vol.6 - Five Finger 2010-02-24
• 첫사랑이죠 2010-01-12