Comparison of layout engines (graphics)

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The following tables compare graphics compatibility and support for a number of layout engines within web browsers. Please see the individual products' articles for further information.

Unless otherwise specified in footnotes, comparisons are based on the stable versions without any add-ons, extensions or external programs. Version numbers, if possible, are provided for features that are fully supported. Proprietary extensions are not included.

Explanation of the tables[edit]

Engine nomenclature[edit]

Rather than the names of web browsers, the names of the underlying engines are used. The browsers that use the various engines are listed below.

Layout engine Release version Preview version Used by
Amaya 11.4.7[1] N/A No longer developed; Amaya
Blink 537.36 source code[note 1] Chromium/Chrome (28+), Opera (15+) and Yandex

30.0 (June 10, 2014; 32 days ago (2014-06-10)[2]) [±]
ESR 24.6.0 (June 10, 2014; 32 days ago (2014-06-10)[3]) [±]

31.0 Beta 9 (July 11, 2014; 1 day ago (2014-07-11)[4][5]) [±] All Mozilla software, including Firefox; SeaMonkey and Galeon; Camino; K-Meleon; Flock (up to 2.x); Debian IceWeasel; GNU IceCat (formerly GNU IceWeasel); Icedove, Iceape and Iceowl; Fennec. Also used by the Maple platform in 2010 and 2011 Samsung "SmartTV" devices which are based on the build used in Firefox 3.0.[citation needed] Nokia Asha platform is also using Gecko for web apps rendering.
KHTML 4.12.3[6] N/A Konqueror[note 2]
Presto 2.12.388 N/A No longer developed; Opera and Opera Mobile use Blink now; Nintendo DS & DSi Browser; Internet Channel
Tasman (IE 5.2.3 for Mac) N/A No longer developed (aborted in 2003); Internet Explorer 5+ for Mac OS X
Trident 7.0 (IE 11) N/A Internet Explorer and other Internet Explorer shells like Maxthon (Microsoft Windows operating systems only), Windows Phone 8
WebKit 534.20 nightly build[note 3] Tizen (both OS and browser), Safari (both desktop and mobile), Google Chrome (before 28), Maxthon 3, Shiira, iCab 4, OmniWeb 5.5+, Web, Adobe AIR, Midori, Adobe Dreamweaver CS4 and CS5, Android browser, Palm webOS browser, Symbian S60 browser, OWB, Steam, Rekonq, Arora, Flock (version 3+), RockMelt, Dolphin Browser, Sleipnir, Konqueror[note 2], rekonq. Used by the LG Smart TV platform to enable web content on TVs.
  1. ^ "chromium / chromium/blink". Google. Retrieved 2014-05-27. 
  2. ^ a b In Konqueror, the user can switch the used layout engine.
  3. ^ "WebKit Nightly Builds". Retrieved 2014-05-27. 


Values indicate the level of support in the most recent version of the layout engine, or (if a version number is given) in the specified version. Version numbers without any other value indicate the version at which the layout engine first fully supported the feature.

Value Meaning
Yes Indicates that the layout engine fully supports this property/element when valid values are used.
No Indicates that the property/element is completely ignored.
Partial Indicates that the property/element is understood, but that not all values are supported. Supported values are implemented correctly.
Incorrect Indicates that the property/element is understood, but that it is not implemented correctly in all cases.
Experimental Indicates that the property/element is understood, but supported under an alternate name. May be incomplete or buggy.
Dropped Indicates that the property/element is no longer supported.
Nightly build Indicates that the property/element is supported to some extent in an experimental/nightly build. Future support is expected.
Depends Indicates that the property/element is supported only on certain platforms, or if certain settings are configured.

Image format support[edit]

Trident Tasman Gecko[note 1] WebKit KHTML[note 2] Presto Prince XML
JPEG/JFIF <3.1[IE 3.0] Yes 1.0 85 Yes 1.0 3.0
JPEG 2000 (.jp2) No No No[g 1] Depends[note 3] No No No
JPEG XR 5.0[t 1] No No[g 2] No No No No
GIF GIF 89a <3.1[IE 3.0] Yes 1.0 85 Yes 1.0 5.0
GIF 87a
PNG 1.2 (W3C/ISO/IEC version) 3.1 Yes 1.0 85 Yes 1.0 3.0
MNG 1.0 No No Dropped[g 3] No[w 2] Yes No No
JNG 1.0 No
APNG 1.0 1.9 No[w 3] No[k 1] 2.1
BMP Yes ? Yes Yes Yes 1.0 ?
WBMP No ? No[g 4] ? ? 1.0 ?
ICO Yes ? Yes Yes Yes 1.0 ?
TIFF 5.0[t 1] No No[g 5] No Yes[k 2] No 3.0[note 4]
XBM Dropped[note 5] Yes[note 6] Dropped[note 7] Yes ? 1.0 No
WebP No No No[g 7] 534.10[w 4] No 2.8.131[p 1] No

JPEG support[edit]

Comparison of various JPEG/JFIF feature support.

Trident Tasman Gecko WebKit KParts Presto Prince XML[note 8]
Operation mode Progressive <3.1[IE 3.0]

[note 9]

Yes 1.0 85 Yes 1.0 3.0
Baseline <3.1[IE 3.0]
Hierarchical ?
Lossless No

GIF support[edit]

Comparison of various GIF feature support.

Trident Tasman Gecko WebKit KParts Presto Prince XML[note 10]
GIF 87a Interlacing 3.1 Yes 1.0 85 Yes 1.0 3.0
GIF 89a Binary transparency

PNG support[edit]

Comparison of various PNG feature support.[7][8][9]

Trident Tasman Gecko WebKit KParts Presto Prince XML[note 11]
Color mode[note 12] True color <3.1[IE 4.0] Yes 1.0 85 Yes 1.0 3.0
Palette-based (max. 256 colors)
Alpha channel 3.1 Yes 1.0 85 Yes 1.0 3.0
Gamma correction 5.0[t 2] Partial[note 13] Incorrect[note 14] No[k 3] Partial[note 13] ?
Color correction 1.9 ? ? No 3.0
Interlacing Incorrect[note 15] 1.0 ? 4.0 1.0 ?
Integrity checking ? ? ? ? ? ? ?

See also[edit]


  1. ^ Gecko uses the libpr0n library to render images.
  2. ^ Does not have any native image support. This is by design: in Konqueror, multimedia files are handled by KParts.
  3. ^ JPEG 2000 support is only available on the Mac OS X platform.[w 1] (Note that the referenced link leads to the Mozilla Bugzilla, where this was brought up and confirmed.)
  4. ^ Prince uses the libtiff library to load TIFF images.
  5. ^ Trident dropped support for XBM in Internet Explorer version 6.0.
  6. ^ As of 5.2.3, the last publicly released version.
  7. ^ Gecko dropped XBM support in version 1.9.2.[g 6]
  8. ^ Prince uses the libjpeg library from the Independent JPEG Group to load JPEG images.
  9. ^ Trident only displays progressive JPEGs once they have been completely downloaded.
  10. ^ Prince uses the libungif library to load GIF images.
  11. ^ Prince uses the libpng library to load PNG images.
  12. ^ There are 15 combinations of the color modes in PNG but not all modes are available in every image editor.
  13. ^ a b Gecko and Presto currently support gamma correction for all color profiles except for ICC-profile.[10]
  14. ^ Webkit incorrectly applies gamma correction to unlabeled PNGs.[w 5]
  15. ^ In Trident, interlaced PNGs are displayed progressively, but in 1D instead of 2D.


Trident references[edit]

  1. ^ a b Protalinski, Emil (2010-03-16), Platform Preview gives Web developers first taste of IE9, Ars Technica 
  2. ^ Windows Internet Explorer Platform Preview, Microsoft, 2010-03-15 

Gecko references[edit]

Webkit references[edit]

KHTML references[edit]

Presto references[edit]

Other references[edit]

  1. ^ Amaya Binary Releases, Most recent download link in stable
  2. ^ "Firefox — Notes — Mozilla". 2014-06-10. Retrieved 2014-06-10. 
  3. ^ "Firefox — Notes — Mozilla". 2014-06-10. Retrieved 2014-06-10. 
  4. ^ "Firefox — Beta Notes — Mozilla". 2014-06-12. Retrieved 2014-06-13. 
  5. ^ "Mozilla Firefox Web Browser — Download Firefox Aurora or Beta & Help Determine the Next Firefox — Mozilla". Retrieved 2014-07-12. 
  6. ^ Download for kdelibs, Most recent download link in stable
  7. ^ "Jason Summers's web site", Browser test / demonstration pages, retrieved May 1, 2005 
  8. ^ "PNG and MNG tools", Browser gamma test, retrieved May 1, 2005 
  9. ^ "PNG (Portable Network Graphics) Home Site", PNG-supporting Browsers, retrieved May 1, 2005 
  10. ^ Roelofs, Greg, Browser Gamma-Consistency Test