AuditMyPC - Internet Speed Test. Detailed testing of upstream, downstream and packet quality for all communications including VOIP.

Bandwidth Tests - Online 50K download test and links to other web based bandwidth tests.

Bandwidth-test.net - Free test of internet connection, downstream, upstream and ping.

 

Beeline Bandwidth Test - Web based graphical (flash) tool to test the speed of an internet connection.

Broadband-help.com - Web based speed and bandwidth test. Analyses speed, quality, round trip. Use to monitor the quality of your broadband provider.

CNET - Bandwidth Meter - Web based tool for testing bandwidth. Includes a service locator for North America.

Connection Speed Test - Internet connection benchmarking tool.

Downstream speed test - Test your broadband or modem connection.

Febooti Download Speed - Freeware utility for Windows. Test your internet download speed and estimate download times.

Internet Speed test - Test the speed of your broadband connection.

Line Speed Testing - Test your broadband connection. Provides accurate download and upload tests.

Multidata Bandwidth Meter - Web based bandwidth test from Jakarta, Indonesia.

My Bandwidth Test Meter - Bandwidth test meter for checking the connection speed for dsl, cable, modems, wimax, voip and other internet connections.

 

MySpeed - Testing service measures download and upload speeds for registered users.

Online.net - Internet connection bandwidth test.

Optimum Online Speed Check - Uses a car speedometer interface for checking bandwidth speed.

Oz Broadband Speed Test - Australian Cable, ADSL, and Dial-up internet speed test.

PC Pitstop - Internet Download Bandwidth Test - Web based tool for measuring bandwidth by downloading text files of different sizes.

2punk - A free simple internet bandwidth test.

The Speed - Bandwidth speed tests from multiple locations around the world.

Speed Test Online - Test downstream and upstream connections.

Speed.kify.com - Test your internet connection speed.

Sprint Speed Test - Internet connection speed test.

ThinkBroadband: Broadband Speed Test - Web based speed test applet which analyses both downstream and upstream speeds from the UK. Allows graphing of your connection over time.

Toast Net - Test the speed of your Internet connection. Unlimited tests at no additional charge.

ToolPanel.org - Web based tool for testing your download bandwidth. Doesn't require any browser plugins.

TPtest- Internet performance test suite - Open Source (GPL/LGPL) software suite for testing network throughput (aka "bandwidth").

Bandwidth - The amount of data that is able to be sent over a network, measured in Kilobytes and Megabytes per second (Kbps and Mbps). Modern low bandwidth communications include dialup modems and ISDN, ranging from 56Kbps to 128Kbps, but actual downloading times are closer to 1/10th of this speed. High-speed cable modems, DSL, T-1, and Satellite are much faster, by factors of as little as 10 or even higher than 100. Any connection of two or more computers that enables them to communicate.