Download source, binaries, plugins, and sample code (15MB) or Download core binary only (170K)

Read the release notes for v3.1 and V3.1.3 if you're upgrading from 3.0.X. V3.1 included major changes to all plugins and the core, and included a long list of bug fixes. It also introduced 11 new plugins and 5 rewritten ones. V3.1.3 introduced 2 new plugins and a new path syntax.

This release adds minor new features and fixes some minor bugs.

Major bug fixes

• The setter for the ResizeSettings.Height property works again (it was broken in 3.1.3 due to a typo made while adding the w/h syntax).
• ImageBuilder now throws a FileNotFoundException instead of a NullReferenceException when a ASP.NET virtual path like "~/file.png" doesn't exist.

Minor new features

• Added ImageJob.CreateDir() alias - a chainable way to set CreateParentDirectory to true.
• Added /resizer.debug warning when running under IIS7 classic mode instead of integrated mode.

Minor bug fixes

• Now compiles under Visual Studio 11 preview
• Better error messages for empty or read-to-end streams from a (I)VirtualFile or HttpPostedFile source value.
• ImageBuilder.Build, LoadImage, and GetStreamFromSource now throw an ArgumentNullException if parameter 'source' is null.

All releases

• Resizer 4.1.9 - Jun-22-2017 - Important fix for constant CPU use
• Resizer 4.1.8 - Jun-17-2017 - 2 bug fixes
• Resizer 4.1.7 - Jun-6-2017 - 166 commits
• Resizer 4.0.5 - Jan-31-2016 - 3 bug fixes
• Resizer 4.0.4 - Oct 25 2015 - Major release with security and massive performance improvements
• Resizer 3.4.3 - May 8 2014 - New release adds metadata copy support, fixes 4 bugs.
• Resizer 3.4.2 - November 26 2013 - New Release adds support for AWSSDK 2
• Resizer 3.4.1 - October 30 2013 - New release features 1 bug fix and 1 enhancement.
• Resizer 3.4.0 - October 17 2013 - New release comes with 4 new plugins and 11 bug fixes.
• Resizer 3.3.3 - March 2 2013 - 2 bug fixes, one in S3Reader, one in WicDecoder
• Resizer 3.3.2 - Jan 24 2013 - 2 bug fixes
• Resizer 3.3.1 - Dec 19 2012 - 8 bug fixes, 1 new plugin
• Resizer 3.3.0 - Dec 3 2012 - 10 bug fixes, 2 new filters, 2 new alpha plugins
• Resizer 3.2.4 - Aug 6 2012 - 7 bug fixes, S3Reader changes, 2 new alpha plugins
• Resizer 3.2 beta 3 - June 30 2012 - 4 bug fixes
• Resizer 3.2 beta 2 - June 20 2012 - 3 bug fixes
• Resizer 3.2 alpha 1 - June 4 2012 - 1 bug fix
• Resizer 3.2 alpha 0 - June 3 2012 - 11 bug fixes (reliability improvements in WicBuilder, Watermark, WhitespaceTrimmer, SqlReader), heavy refactoring, 5 new draft plugins
• Resizer 3.1.5 - Feb 22 2012 - 19 bug fixes, 8 new features, 2 potentially breaking changes
• Resizer 3.1.4 - Jan 22 2012 - 5 bug fixes, 2 minor new features
• Resizer 3.1.3 - Jan 14 2012 - 2 new free plugins, 7 bug fixes
• Resizer 3.1 alpha 2 - Dec 7 2011 - 5 new free plugins, 6 new bundle plugins, 5 rewritten plugins, and innumerable bug fixes
• Resizer 3.0.13 - Oct 12 2011 - 6 bug fixes, raw support, and 1 breaking change (renaming the FriendlyUrls plugin)
• Resizer 3.0.12 - Aug 15 2011 - 12 bug fixes, 10 new features, 3 new plugins since 3.0.11
• Resizer 3.0.11 - July 29 2011 - 5 bug fixes and 2 new plugins since alpha 10
• Resizer 3 alpha 10 - Jun 16 2011 -
• Resizer 3 alpha 9 - Jun 8 2011 - 8 bug fixes and 8 new features
• Resizer 3 alpha 8 - Jun 2 2011 - 4 core bug fixes, 2 new sample projects, and the important fixes to the DiskCache, SqlReader, and AnimatedGifs plugins
• Resizer 2.8 - May 27 2011 - The last build of the version 2 line.
• Resizer 3 alpha 7 - May 26 2011 - 3 stability fixes, jCrop support, COM support, better diagnostics.
• Resizer 3 alpha 5 - May 15 2011 - 7 bug fixes, 5 API changes, and 3 new plugins
• Resizer 3 alpha 3 - May 2 2011 -
• Resizer 3 alpha 2 - Apr 24 2011 -