File conversion software
Programs to convert BBC files between various formats. Note that Tom Seddon's emulator package includes the conversion utilities you need to use BBC software with his emulator. The documentation section has a couple of pages on procedures and formats. 
David Boddie offers T2Tools, a collection of BBC/Electron file conversion utilities in the form of Python scripts. Check his home page for the latest and greatest! The utilities include: 
T2INF: converts Slogger T2* tape images to standard archive format. 
T2UEF: converts Slogger T2* tape images to UEF files (for use with ElectrEm). 
INF2UEF: converts standard archive format to UEF. 
UEF2INF: no prize for guessing what this does (experimental as of Nov 21. 2000). 
ADF2INF: converts ADFS disk images to standard archive format (experimental as of Nov 21. 2000). 
David Lodge's disc utilities are available under the GPL, and includes Linux binaries. 
William Andrew Steer provides a utility for extracting files from a BBC disk image. 
nspark 1.7.7, patched by Mark Usher to allow extraction of *.inf files for use on non-Acorn machines. Useful for making disk images! 
Tape2Disc, a RISCOS program for decoding Slogger tape images into separate files, by David Boddie. He has a page for it as well. 
bascat 1.2, a BBC BASIC file viewer for UNIX (more info). 
BBC Explorer 2.01 [home], a Windows Explorer-like program for manipulating BBC disk images, by Laurie Whiffen. 
BAS2TXT, a C program to convert tokenized BBC BASIC program files to readable text. Contains DOS and Win32 executables. 
BEEBARC 0.03a by Darren Salt. Similar to bbcim, but especially for RISC PCs. 
BBCCONV by Andrew de Quincey. Convertes BASIC files between BBC BASIC and PC BBC BASIC. C source and Intel x86 Win32 executable. 
bbcim 0.95 beta 5 for converting between various BBC emulator storage formats. Contains UNIX source and a documentation (man) page. Includes w62, a small program to preprocess a Watford DFS image for extraction with bbcim. Some binaries are also available: bbcim 0.95 beta 2 for Win32 and bbcim 0.95 beta 5 for DOS. Questions should be sent to the author, Wouter Scholten. The latest (beta) versions can always be found here. 
stampinf: David Glover's utility for converting archive files (with *.inf) to files usable on an Acorn machine. Updates can be found here. 
DCONV 2.0, Tom Seddon's DFS to standard archive format converter. Supports Watford DFS images with up to 62 files. 
dconv for Xbeeb, David Ralph Stacey's DFS image to Xbeeb _CATALOGUE_ format converter. 
XADFS, Wouter Hobers' utility extracts files from ADFS disk images.