Lexar was founded as an American manufacturer of digital media products based in San Jose, California.

In September 2007, Lexar extended its agreement with Eastman Kodak Company to develop and market Kodak-branded flash memory products worldwide.

[7] On August 31, 2017, the Lexar brand and trademark rights were acquired by Longsys, a flash memory company based in Shenzhen, China.

[13] In June 2020, Lexar announced its entry to the DRAM market by unveiling seven different DDR4-2666 memory kits for mainstream laptops and desktops.

Lexar has published the specifications for its USB FlashCard form factor[16] on its website in an open and royalty-free format, in the hopes that other memory card and portable device manufacturers will adopt it.