Freely redistributable software

Freely redistributable software (FRS) is software that anyone is free to redistribute. The term has been used to mean two types of free-to-redistribute software, distinguished by the legal modifiability and limitations on the purpose of use of the software. FRS which can be legally modified and used for any purpose is the same as free software. Non-legally modifiable FRS is freeware, shareware, or similar.

The non-modifiable FRS generally comes in the form of executable binaries. Proprietary software companies and authors often use it to showcase their work or encourage users to buy full products from them (in the case of shareware, demo, or trial versions). Freeware that is not restricted to be obtained from a specific distributor is also FRS.^{[clarification needed]}