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Usage share of web browsers

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File:Layout engine usage share.png
A rough estimation of usage share of layout engines/web browsers

The article aims to be an unbiased historial record for the usage share of web browsers (but ideally layout engines, as it is what matters), based on statistics and articles published by well-known websites. One of the use of such statistics is to create a graph that roughly represents the browser wars. This also serves as a reference for the various web browser articles.

This article is not all-inclusive or necessarily up-to-date.

1999 and earlier

AdKnowledge

Usage share data from: AdKnowledge
Date Internet Explorer Netscape Navigator Source
January 1998 36% 61% Behind the numbers: Browser market share
March 1998 42% 57%
June 1998 46% 52%

International Data Corporation

Usage share data from: International Data Corporation
Date Internet Explorer Netscape Navigator Source
1996 16% 55% Behind the numbers: Browser market share
1997 23% 51%

ZD Market Intelligence

Usage share data from: ZD Market Intelligence
Date Internet Explorer Netscape Navigator Source
January 1997 21% 63% Behind the numbers: Browser market share
January 1998 39% 54%

Zona Research

Usage share data from: ZD Market Intelligence
Date Internet Explorer Netscape Navigator Source
January 1997 28% 70% Behind the numbers: Browser market share
September 1998 36% 62%
July 1999 45% 54%

2000 to present

OneStat.com

Global usage share data from OneStat.com
Date Internet Explorer Netscape Mozilla Mozilla Firefox Opera Safari Source
April 29, 2002 96.6% 2.1% 0.4% 2002-04-29
July 21, 2002 95.1% 1.9% 0.6% 2002-07-21
September 30, 2002 93.9% 1.2% 0.8% 0.8% 2002-09-30
December 16, 2002 93.7% 1.1% 1.1% 0.8% 2002-12-16
February 3, 2003 94.3% 1.0% 1.2% 0.7% 2003-02-03
July 28, 2003 94.3% 0.6% 1.6% 0.6% 2003-07-28
January 19, 2004 94.4% 1.8 0.8% 0.48% 2004-01-19
May 28, 2004 93.6% 2.1% 1.02% 0.71% 2004-05-28
November 22, 2004 88.79% 2.77% 4.58% 1.29% 2004-11-22
February 28, 2005 87.28% 1.11% 8.45% 1.09% 1.21% 2005-02-28
April 27, 2005 86.63% 1.08% 8.69% 1.03% 1.26% 2005-04-27

WebSideStory.com

USA usage share data from: WebSideStory.com
Date Internet Explorer Mozilla Firefox Other Gecko-based browsers Source
February 1, 1999 64.60% 33.43% Explorer Dominates Brower Market, Netscape Dwindles
June 18, 2000 86.08% 14.01%
February 21, 2001 87.71% 12.01%
June 4, 2004 95.48% 3.53%
October 8, 2004 93.21% 2.66% 3.05%
November 5, 2004 92.89% 3.03% 2.95%
December 3, 2004 91.80% 4.06% 2.83%
January 14, 2005 90.28% 4.95% 2.64%
February 18, 2005 89.85% 5.69% 2.47%
April 29, 2005 88.86% 6.75% 2.23% Firefox's Market Share Nears 7 Percent

Janco Associates Inc.

Usage share data from Janco Associates Inc.
Date Internet Explorer Mozilla Firefox Mozilla Netscape AOL MSN Explorer Opera
January 2005 84.85% 4.23% 4.48% 3.03% 2.20% 0.58% 0.34%
April 2005 83.07% 10.25% 3.81% 0.92% 0.85% 0.67% 0.41%

Source: Browser Market Share Study

See also

Category: