Audacity
A free, easy-to-use, multi-track audio editor and recorder for Windows, macOS, GNU/Linux and other operating systems.
ELAN
A tool for making time-aligned annotations on audio and video recordings.
Praat
Free software for doing phonetics by computer.
FieldWorks
Software tools for managing linguistic and cultural data. FieldWorks supports tasks ranging from the initial entry of collected data through to the preparation of data for publication, including dictionary development, interlinearization of texts, morphological analysis, and other publications.
Toolbox
A data management and analysis tool for field linguists. It is especially useful for maintaining lexical data, and for parsing and interlinearizing text, but it can be used to manage virtually any kind of data.
AntConc
A freeware corpus analysis toolkit for concordancing and text analysis.