Onetastic for Microsoft OneNote Alternatives

Eigengrau's Essential Establishment Generator - a procedural city generator for tabletop gaming

Open Source

Tabletop Audio is an ambient game audio site.

Freely accessible online collection of random generators for tabletop games.

A free-form map editor for role-playing games, focusing on overland and continental maps.

Dungeon Map Doodler is a free to use drawing tool accessible from any web browser. Easily create maps for your favourite tabletop RPGs in minutes!

Joplin is a free, open source note taking and to-do application, which can handle a large number of notes organised into notebooks. The notes are searchable, tagged and modified either from the applications directly or from your own text editor.

Open Source free

Immersive, dynamic sound effects and music for tabletop games

Roll20 is a suite of easy-to-use digital tools that expand pen-and-paper gameplay.

Open Source

A dungeon scrawling tool by ProbableTrain

Dungeon Builder is an Isometric Dungeon Map Maker that produces beautiful, high resolution maps...

Listen online to relaxing sound atmospheres, ambient music or chilling sound effects. You can even create and mix your own moods, all for free.

With Fractal Mapper, creating worlds has never been so easy!

The simplest way to keep notes. Light, clean, and free. Simplenote is now available for iOS, Android, Mac, and the web.

Open Source