- Brassica
- Command Line SCA
- Didelphis
- Featured Sound Change Applier
- Geoff’s Sound Change Applier (GSCA)
- IPA Zounds
- Lexurgy
- Lingua::SoundChange
- Onset
- Reversible Sound Change Applier (rsca)
- phonix
- SCA²
- SCA 2.1/SCA++
- soundchange
- Sound Change Transducer
- TriSCA
- Richard Wordingham’s Sound Change Applier
- loanpy (Not so much an SCA proper but intended to be used to find cognacy via diachronics)