2 Wire - Bandwidth Meter: Measures current bandwidth speed.
2punk: A free simple internet bandwidth test.
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 Speed Test: Web based speed test applet which analyses both downstream and upstream speeds from the UK.
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.
MSN - Internet Speed Test: Test for Dial-up modem, ISDN, DSL/Cable and LAN/WAN. [US only]
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.
Speed Test Online: Test downstream and upstream connections.
Speed.kify.com: Test your internet connection speed.
Sprint Speed Test: Internet connection speed test.
The Speed: Bandwidth speed tests from multiple locations around the world.
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").
UrlInfo: Bandwidth test and IP check.