If you find a viewer which can connect to OpenSimulator then please add it to the bottom of the appropriate list.

Viewers with Grid Selector and Grid Manager

Below are viewers that have both a grid selector and a "Grid Manager". It enables you to select one of the many grids, including a grid or region on localhost (your own PC). There is also a UI interface to allow you to modify or add connection settings to these grids.

• Alchemy Viewer - v3 based TPV with full OpenSimulator support written from the ground up and geared towards hypergrid.
• Cool VL Viewer - the oldest of all actively maintained Third Party Viewers (former name: Cool SL Viewer) OpenSimulator is fully supported.
• Hippo Viewer - a fork of version SL Viewer 1.23 with OpenSimulator specific enhancements.
• Firestorm viewer v3 based TPV, the successor to Phoenix. The most widely used viewer on Second Life. OpenSimulator is fully supported with its own version.
• Radegast Metaverse Client Light-client based on the libopenmetaverae project. Opensimulator is fully supported.
• Singularity - A Snowglobe-based viewer with many current features backported. The most widely used viewer for OpenSimulator. OpenSimulator is fully supported.
• Lumiya viewer - A Second Life and OpenSimulator viewer for Android.

Viewers with Grid Selector Only

These viewers don't have a Grid Manager, but you can choose a grid from a list, including localhost. You may need to manually edit a configuration file in order to connect to grids that are not originally included.

• Kokua Snowstorm-based successor of Imprudence. Currently in alpha/experimental stage.

Text-only Viewers

These are lightweight viewers, which either do not offer a graphical component or where the graphical component is not used by deault. The function of these viewers however is to connect to a grid, chat, manage inventory, etc. Useful on systems with low specifications or for bringing an alt online without having your main avatar log out, or to quickly take care of messages, inventory, etc.

• JOpenMetaverse Purely Java based OpenSim client core library. Windows, MacOS,, Linux and Android Compatible. Please see jopenmetaverse introduction
• METAbolt - METAbolt is a non-graphical (text based) viewer. It's light weight and cross grid, which means it will work in Second Life™ as well as other grids that are based on OpenSIM. The viewer is Open Source so it's free. Currently METAbolt is only available for Windows platforms.
• Mobile Grid Client - A Second Life and OpenSim (Open Simulator) messaging client for your Android powered device (mobile phone, cell phone, tablet...).

Inactive Viewers

• RealXtend - a fork of the 1.23 Linden Client that has specialized features (not fully supported.)
• Idealist viewer
• 3Di viewer
• Xenki, an XBAP 3D application intended to be a browser add-on for OpenSimulator.
• Looking Glass viewer, Discontinued. Only OSGrid, ScienceSim and localhost are available from the list.
• Imprudence Innovative viewer with a high focus on OpenSimulator.
• Phoenix Viewer Based on the now discontinued Emerald Viewer. Combines many improvements and features from different viewers.

Feature Table

Active viewers

Viewer Name

Based on

Grid Selector

Grid Manager

Graphical

Mesh

OSSL support

LightShare [1]

Multiple Attachments

Multiple Clothing Layers

MOAP support

Varregion support

Operating System

Notes

Singularity

Snowglobe

√

√

√

√

√

√

√

√

√

√

[4]

Cool VL Viewer

Snowglobe

√

√

√

√

√

X

√

√

√

√

Kokua

Snowstorm

√

√

√

√

√

√

√

√

√

√

[3]

Firestorm viewer

Snowstorm

√

√

√

√

√

√

√

√

√

√

Radegast Metaverse Client

libomv

√

X

Text client with graphical component

√

X

X

√

?

X

√

Notes

• #1 LightShare is a method for altering WindLight settings on a parcel or region by means of a script. See Lightshare.
• #3 Data based on Kokua-3.5.2 [1], may soon be out of date.
• #4 Singularity is based on modern v2/v3 code, but has the look and feel of v1.

Viewers which are inactive or do not currently support OpenSimulator

Viewer Name

Based on

Grid Selector

Grid Manager

Graphical

Mesh

OSSL support

LightShare [1]

Multiple Attachments

Multiple Clothing Layers

Varregions

Operating System

Notes

Imprudence

Snowglobe

√

√

√

X

X

√

X

X

X

RealXtend Naali

Snowglobe

√

√

√

?

?

?

?

?

X

[3]

Hippo Viewer

Snowglobe

√

√

√

X

√

X

X

X

X

Looking Glass viewer

√

X

√

?

?

?

?

?

X

Idealist viewer

?

?

?

?

?

?

?

?

X

[5]

3Di viewer

Browser

?

?

?

?

?

?

?

?

X

Xenki

Browser

?

?

?

?

?

?

?

?

X

[5]

Notes

• #1 LightShare is a method for altering WindLight settings on a parcel or region by means of a script. See Lightshare.
• #3 RealXtend requires an additional module to be active on OpenSimulator. See ModRex.
• #4 After LL 3.3.4, the --loginuri parameter was removed from the official Linden viewer. There is now no simple way to use this viewer to log in to OpenSimulator.