Flex or FLEX may refer to:
Computing Apache Flex, formerly Adobe Flex, technologies for developing rich internet applications Flex (language), developed by Alan Kay FLEX (operating system), a single-tasking operating system for the Motorola 6800 FlexOS, an operating system developed by Digital Research FLEX (protocol), a communication protocol for pagers FLEx, a piece of software used in language documentation Flex (lexical analyser generator), a lexical analyser generator and a free software alternative to lex Flex machine, a computer developed by RSRE in the 1980s CSS Flexible Box Layout, commonly known as Flexbox, a CSS 3 web layout model
Science and technology Bending, also known as flexure, as used in mechanics Flexion, in anatomy, a position made possible by the joint angle decreasing Femtosecond Lenticule EXtraction, a form of refractive eye surgery Flex circuit, a flexible printed circuit used in electronic assemblies FLEX mission, a future satellite launch mission by the European Space Agency Astrolab FLEX rover, a robotic lunar rover. Flex temp, a reduced takeoff thrust setting which trades excess performance for reduced engine wear Flex-fuel, a flexible-fuel vehicle Inflection point, of a curve in geometry Power cord, or flex, a flexible electrical cable
Music Artists Flex (singer), Félix Danilo Gómez (born 1974) Funkmaster Flex (born 1968), American DJ and music producer
Albums and EPs Flex (album), by Lene Lovich, 1979 Flex (EP), by Pitch Black, 2003
Songs "Flex" (Dizzee Rascal song), 2007 "Flex" (Mad Cobra song), 1992 "Flex" (Polo G song), 2020 "Flex", by TFN, 2021 "Flex", by Shygirl and Bambii from Club Shy Room 2, 2025 "Flex (Ooh, Ooh, Ooh)", by Rich Homie Quan, 2015 "FLEX" by Cupid, 2023
Other uses in music Flex, a break in the recitation tone before the mediation in Gregorian chant A "flex" in a "flex bar", a technique used in battle rap
Organizations Flex (club), a nightclub in Vienna, Austria Flex (company) (NASDAQ symbol: FLEX), a contract electronics maker based in Singapore previously known as Flextronics. Flex FM, a London-based radio station Flex-Elektrowerkzeuge, a German producer of power tools Flex Linhas Aéreas, a Brazilian regional airline
People Flex Alexander, Mark Alexander Knox (b. 1970), an American actor and comedian Flex Wheeler (born 1965), American bodybuilder Walter Flex (1887–1917), German author
Other uses Amazon Flex, a platform for gig workers performing deliveries for Amazon ChromeOS Flex, an operating system maintained by Google that is based on ChromeOS Flex (comics), a fictional superhero Flex (film), a commercial/short film by English director Chris Cunningham Flex (magazine), an American bodybuilding magazine Flex (TV program), a 2021 Philippine variety show FlexAccount, the main current account offered by Nationwide Building Society since 1985 Flextime, a flexible working arrangement Fleet Landing Exercises, a series of landing exercises conducted by the Fleet Marine Force, a combined-United States Navy/Marine landing force Flex Your Rights, a civil-liberties non-profit based in Washington DC, US Ford Flex, a crossover SUV produced from 2009-2019 Future Leaders Exchange, an American student exchange program for high school students from the former Soviet Union
See also Bend (disambiguation) Flexible (disambiguation) Flexing (disambiguation)