SLADE

SLADE is a modern, open-source, cross-platform map editor (and, since version 3, also a WAD editor) for Windows, Mac OS X, and Linux created and maintained by Simon Judd (with code contributions by Gez to version 3).

History

 * SLADE 1 stopped at version 1.13, released on 23-05-2006.
 * SLADE 2 reached beta on 07-06-2007, but was abandoned afterwards.
 * SLADE 3 is currently in development. It is a merging of SLADE and SLumpEd.

SLADE 3
Map editing is not finished yet, but UDMF and Doom64 EX are supported in addition to the Doom and Hexen map formats.
 * All SLumpEd features and more
 * Lump manipulation in WADs and (STORE and DEFLATE only at the moment)
 * Ability to open archives-within-archives
 * Ability to open many other game archive formats (Duke Nukem 3D GRP files, Blood RFF files, Shadowcaster DAT and LIB files, Quake PAK files, etc.)
 * Support for many graphic picture formats, including:
 * All those from the Doom Alphas and Beta
 * All ZDoom-specific formats (IMGZ, FON1, FON2)
 * The planar format used by the Hexen startup screen
 * PNG including the grAb and alPh chunks, and many other standard formats (BMP, JPG, PCX, TGA, etc.)
 * The formats used by Shadowcaster, Quake, Heretic II, Duke Nukem 3D, Rise of the Triad, and more
 * Palette generation and modification
 * Support for editing TEXTUREx lumps, including the Alpha and Strife variants
 * Support for editing the Boom lumps SWITCHES and ANIMATED, including the SMMU and ZDoom additions
 * Text editing of any lump
 * Hex viewing of any lump
 * A console

Older versions
SLADE 1.13 or 2.00-beta have the following features:
 * Support for Doom, Doom II, Heretic and Hexen games
 * Support for Boom and ZDoom source port advanced features
 * DECORATE parser
 * Colour configurations
 * 3D editing mode (including slopes and translucent textures)
 * Uses wxWidgets for the user interface
 * Easy line and rectangle drawing