SLADE3 provides the following features for the supported data formats. This list is not complete, but should give a general idea of what SLADE can do. Also, there are more planned features on the way.

General

• An archive manager with multiple functions
• A console
• Ability to open archives embedded into other archives, with no limit on the amount of recursion
• Ability to "bookmark" entries in order to retrieve them faster in large archives
• Filter list of entries by type and/or name, including wildcards

Archives

• Creating new entries
• Importing files as entries
• Copy/Cut/Paste entries, including between different archive types
• Mass renaming of entries
• Modifying entry order (moving them "up" and "down")
• Reverting changes made to entries

Maps

• Map Preview in the resource editor
• A fully featured map editor, including the following major features:
  • Doom, Hexen and UDMF map format support
  • Easy to use line and shape drawing, including automatic sector generation
  • 3d editing mode with support for various advanced source port features
  • 'Object Edit' function to freely rotate, move and scale map architecture
  • For a more detailed list of features, see Map Editor

Graphics

• Display, including zooming and panning
• Viewing paletted images with a variety of palettes
• Color tinting and palette remapping
• Changing offsets (including automatic addition of offsets) in formats that support them
• Converting between image formats
• Converting a color to transparency
• Basic editing features, such as mirroring and 90° rotations
• Extraction and conversion to PNG of all subimages in an image collection (e.g., Build tiles)
• Call to external PNG optimization tools

Fonts

• Viewing as graphics

Textures

• Display of textures, including zooming and panning
• Viewing paletted texture patches with a variety of palettes
• PNAMES listing, information and edition
• Edition of individual textures to change size and scale; to add, replace, or remove patches, and to modify their order and their offsets
• Support for Doom, Doom Alpha, Strife and ZDoom texture definitions.

Audio

• Playback of MUS, MIDI, XMI, HMI, and HMP files.
• Playback of many audio file formats.

Text

• Find/replace
• Syntax highlighting
• Auto indent
• Brace matching

Miscellaneous

• Preview of generic lumps as hex dump
• Creation and edition of ANIMATED and SWITCHES lumps
• Generation of ANIMDEFS lump from ANIMATED and SWITCHES lumps
• Basic palette editing and palette range generation
• ACS compilation (with external ACC program)
• PNG optimization (with external PNGOUT, PNGCrush and DeflOpt programs)