For MS-Windows:

dy-syst: Explores Newton's method, Mandelbrot and Julia sets
ftp://cssun.mathcs.emory.edu/pub/riddle/
bmand 1.1 shareware by Christopher Bare Mandelbrot program
http://www.ualberta.ca/~jdawe/mandelbrot/bmand11.zip
Quaternion-generator generates Julia-set Quaternions by Frode Gill
http://www.krs.hia.no/~fgill/fractal.html
Quat - A 3D-Fractal-Generator (Quaternions).
http://wwwcip.rus.uni-stuttgart.de/~phy11733/quat_e.html
A Fractal Experience 32 for Windows 95/NT by David Wright <wgwright@mnsinc.com>
http://www.mnsinc.com/wgwright/fracexp/
Iterate 32 for Windows 95/NT written in VisualBasic. Generates IFS, includes 10 built-in attractors, plots via chaos algorithm or MRCM (multiple reduction copy machine), includes MS-Word document about IFS and fractal compression in easy to understand terms. Freeware by Jeff Colvin <kd4syw@usit.net>
http://hamnetcenter.com/jeffc/fractal.html
IFS Explorer for Windows 95/NT, a companion to Iterate 32, allows users to explore IFS by changing the IFS parameters. Requires 800x600 screen. Freeware by Jeff Colvin <kd4syw@usit.net>
http://hamnetcenter.com/jeffc/fractal.html
DFRAC 1.4 by John Ratcliff a Windows 95 DirectDraw Mandelbrot explorer with movie feature. Requires DirectDraw, FPU, and monitor/graphics card capable of 800x600 graphic mode. Freeware.
http://www.inlink.com/~jratclif/john.htm
QS W95 Fractals generates several fractals types in 24-bit colour includind Volterra-Lotka, enhanced sine, "Escher-like tiling" of Julia Set, magnetism formulae, and "self-squared dragons". Supports FractInt MAP files, saves 24-bit Targa or 8-bit GIF, several colour options. Freeware by Michael Sargent <msargent@zoo.uvm.edu>.
http://www.uvm.edu/~msargent/
Other fractal programs by Michael Sargent.
http://www.uvm.edu/~msargent/fractals.htm
Fractal eXtreme for 32-bit Windows 1.01c. A fast interactive fractal explorer of Mandelbrot, Julia Set, and Mandelbrot to various powers, Newton, "Hidden Mandelbrot", and Auto Quadratic. Movies, curve-based palette editor, deep zoom (>2000 digits precision for some types), Auto-Explore. Shareware, with ability to register online, by Cygnus Software.
http://www.cygnus-software.com/
Iterations, Flarium24 and Inkblot Kaos Original programs : Now Iterations is true color as are Flarium 24 and Inkblot Kaos. For W95 or NT. Freeware by Stephen C. Ferguson (<itriazon@gte.net>)
http://home1.gte.net/itriazon/
JuliaSaver : a W95 screen saver that does real-time fractals, by Damien M. Jones (<dmj@emi.net>)
http://www.icd.com/tsd/juliasaver/
Mndlzoom W95 or Nt program which iterate the Mandelbrot set within the coprocessor stack : very fast, 19-digits significance (Philip A. Seeger <PASeeger@aol.com>)
http://members.aol.com/paseeger/
Frang : a real-time zooming Mandelbrot set generator. Needs DirectX (can be downloaded from the same URL or from Microsoft). Shareware (Michael Baldwin <baldwin@servtech.com>)
http://www.servtech.com/public/baldwin/frang/frang.html
Fractal Orbits; A nice implementation of Bubble, Ring, Stalk methods by Phil Pickard <plptrigon@enterprise.net >. Very easy to use. W95, NT.
ftp://ftp-hs.iuta.u-bordeaux.fr/fractorb/
Fractal Commander and Fractal Elite (formerly Zplot) Very comprehensive programs which gather several powerful methods (original or found in other programs). Now only 32 bits version is supported. You can download a free simplified version (Fractal Agent) at http://www.simtel.net/pub/simtelnet/win95/math/fa331.zip. Registered users will receive the full version and a true color one. Shareware by Terry W. Gintz <twgg@ix.netcom.com>.
http://www.geocities.com/SoHo/Lofts/5601/gallery.htm
Set surfer. A nice small program. Draws a variety of fractals of Mandelbrot or Julia types. Freeware by Jason Letbetter <redbeard@flash.net>.
http://www.flash.net/~redbeard/
Kai Power Tools 2 and 3 include Fractal Explorer.
MetaCreations will mail a replacement CD to early KPT 3.0 owners which didn't include Fractal Explorer.
Fantastic Fractals. This program can draw several sorts of fractals (IFS, L-system, Julia...). Well designed for IFS.
http://library.advanced.org/12740/

Screen savers

Free screen savers : By Philip Baker (<phil@pjbsware.demon.co.uk>)
http://www.pjbsware.demon.co.uk/snsvdsp.htm
JuliaSaver : a W95 screen saver that does real-time fractals, by Damien M. Jones (<dmj@emi.net>)
http://www.icd.com/tsd/juliasaver/
IFS screen saver: a Windows 3 screen saver, by Bill Decker (<wdecker@acm.org>)
http://www.geocities.com/SoHo/Studios/1450/
Fractint Screen Saver: a Windows 95 - NT screen saver, by Thore Berntsen ; needs the DOS program Fractint (<thbernt@online.no>)
http://home.sol.no/~thbernt/fintsave.htm
Seractal Screen Saver: Windows 3 and Windows 95 time limited versions (shareware) (<info@seraline.com)>
http://www.seraline.com/seractal.htm
the Orb series by 'O' from RuneTEK. For MS-Windows 95/NT only.
http://www.hypermart.net/runetek/