# observer v2.18.2 - Table of Contents

## Pages

- [Observer Application](observer_app.md)
- [Observer Release Notes](notes.md)

- User's Guides
  - [Introduction](introduction_ug.md)
  - [Observer](observer_ug.md)
  - [Trace Tool Builder](ttb_ug.md)
  - [Erlang Top](etop_ug.md)
  - [Crashdump Viewer](crashdump_ug.md)

- Command Line Tools
  - [cdv](cdv_cmd.md)

## Modules

- [crashdump_viewer](crashdump_viewer.md): A WxWidgets based tool for browsing Erlang crashdumps.
- [etop](etop.md): Erlang Top is a tool for presenting information about Erlang processes similar
to the information presented by "top" in UNIX.
- [observer](observer.md): A GUI tool for observing an Erlang system.
- [ttb](ttb.md): A base for building trace tools for distributed systems.