AngularJS 0.9.0 - as small as it gets (near-perfect GZIP compression)

Choose a version:

The original file has 129586 bytes (126.5k) and is available from the project website.
There you can find the official minified version, too, which brings down the size to 54371 bytes (53.1k, 42%).

After GZIP compression these minified files vary in size:

Boot	24523 bytes (23.9k)	CDN
Baidu	22103 bytes (21.6k)	CDN
cdnjs	22044 bytes (21.5k)	CDN
gzip -6 (default)	21936 bytes (21.4k)	local copy
gzip -9	21897 bytes (21.4k)	local copy
libdeflate -12	21294 bytes (20.8k)	local copy
7zip -mx=9 -tgzip	21040 bytes (20.5k)	local copy
zultra	20962 bytes (20.5k)	local copy
kzip -s0 -rn -b4	20926 bytes (20.4k)	local copy
pigz -11 -n	20912 bytes (20.4k)	local copy
Zopfli	20896 bytes (20.4k)	local copy
Zopfli (defluff)	20895 bytes (20.4k)	local copy

perma-link to the smallest file on my server:
http://minime.stephan-brumme.com/files/angularjs/angular-0.9.0.min.js (or via HTTPS)

You will automatically get the smallest AngularJS 0.9.0 file, ETag caching is available and
if your browser doesn't support GZIP decompression then the uncompressed version will be sent.

Currently best Zopfli settings

Save 1148 bytes by using my AngularJS 0.9.0 Zopfli version instead of the best available CDN (5.49% smaller than cdnjs, 20896 vs. 22044 bytes):

Download

You can use my super-compressed files for whatever purpose you like as long as you respect the library's original license agreement.
There are no restrictions from my side - but please avoid hot-linking if you run a high-traffic website.

These command-line settings yielded the best compression ratio so far (Linux version of zopfli-krzymod):
zopfli --i100000 --mb8 --mls256 --bsr11 --lazy --ohh

(found November 26, 2015)

Description	Value	Parameter
iterations	100000	--i100000
maximum blocks	8	--mb8
maximum length score	256	--mls256
block splitting recursion	11	--bsr11
lazy matching in LZ77	yes	--lazy
optimized Huffman headers	yes	--ohh
initial random W for iterations	1	--rw1
initial random Z for iterations	2	--rz2

Even Smaller Files Thanks To Defluff

Zopfli's output can be further optimized by the defluff tool.
In this particular case, defluff saves 1 more byte (20895 bytes).

Download

Verify file integrity

After decompression, my uncompressed files are identical to the original ones:

MD5:
curl --silent --compressed https://code.angularjs.org/0.9.0/angular-0.9.0.min.js --location | md5sum
f320e526b50a0ef14dc54b1cb93ed038 -
curl --silent --compressed https://minime.stephan-brumme.com/files/angularjs/angular-0.9.0.min.zopfli.js.gz | md5sum
f320e526b50a0ef14dc54b1cb93ed038 -

SHA1:
curl --silent --compressed https://code.angularjs.org/0.9.0/angular-0.9.0.min.js --location | sha1sum
4ea86274f66e5bc39b85d2373046b91869c2ce61 -
curl --silent --compressed https://minime.stephan-brumme.com/files/angularjs/angular-0.9.0.min.zopfli.js.gz | sha1sum
4ea86274f66e5bc39b85d2373046b91869c2ce61 -

These CDNs send you the original file:

CDN	Size (compressed)	MD5 (uncompressed)	Timestamp
Boot	24523 bytes	f320e526b50a0ef14dc54b1cb93ed038	March 18, 2015 @ 10:01
cdnjs	22044 bytes	f320e526b50a0ef14dc54b1cb93ed038	March 28, 2014 @ 14:15

And some CDNs send you a different file:

CDN	Size (compressed)	MD5 (uncompressed)	Comment / Diff	Timestamp
Baidu	22103 bytes	b773b6a291577d200afed61f6ca37f3e	only whitespaces differ	June 5, 2014 @ 10:05

Note: only the MD5 hashes are shown to keep things simple.

Other Versions

Available AngularJS versions at minime.stephan-brumme.com:

1.8.2, 1.8.1, 1.8.0,
1.7.9, 1.7.8, 1.7.7, 1.7.6, 1.7.5, 1.7.4, 1.7.3, 1.7.2, 1.7.1, 1.7.0,
1.6.10, 1.6.9, 1.6.8, 1.6.7, 1.6.6, 1.6.5, 1.6.4, 1.6.3, 1.6.2, 1.6.1, 1.6.0,
1.5.11, 1.5.10, 1.5.9, 1.5.8, 1.5.7, 1.5.6, 1.5.5, 1.5.4, 1.5.3, 1.5.2, 1.5.1, 1.5.0,
1.4.14, 1.4.13, 1.4.12, 1.4.11, 1.4.10, 1.4.9, 1.4.8, 1.4.7, 1.4.6, 1.4.5, 1.4.4, 1.4.3, 1.4.2, 1.4.1, 1.4.0,
1.3.20, 1.3.19, 1.3.18, 1.3.17, 1.3.16, 1.3.15, 1.3.14, 1.3.13, 1.3.12, 1.3.11, 1.3.10, 1.3.9, 1.3.8, 1.3.7, 1.3.6, 1.3.5, 1.3.4, 1.3.3, 1.3.2, 1.3.1, 1.3.0,
1.2.32, 1.2.31, 1.2.30, 1.2.29, 1.2.28, 1.2.27, 1.2.26, 1.2.25, 1.2.24, 1.2.23, 1.2.22, 1.2.21, 1.2.20, 1.2.19, 1.2.18, 1.2.17, 1.2.16, 1.2.15, 1.2.14, 1.2.13, 1.2.12, 1.2.11, 1.2.10, 1.2.9, 1.2.8, 1.2.7, 1.2.6, 1.2.5, 1.2.4, 1.2.3, 1.2.2, 1.2.1, 1.2.0,
1.1.5, 1.1.4, 1.1.3, 1.1.2, 1.1.1, 1.1.0,
1.0.8, 1.0.7, 1.0.6, 1.0.5, 1.0.4, 1.0.3, 1.0.2, 1.0.1, 1.0.0,
0.10.6, 0.10.5, 0.10.4, 0.10.3, 0.10.2, 0.10.1, 0.10.0,
0.9.19, 0.9.18, 0.9.17, 0.9.16, 0.9.15, 0.9.14, 0.9.13, 0.9.12, 0.9.11, 0.9.10, 0.9.9, 0.9.8, 0.9.7, 0.9.6, 0.9.5, 0.9.4, 0.9.3, 0.9.2, 0.9.1, 0.9.0

The project site contains an overview how well these versions were compressed.
Other interesting projects are BackboneJS, Bootstrap, D3, Dojo, Ember, jQuery, Knockout, lodash, React, Socket.IO, ThreeJS, UnderscoreJS and Vue.

Changelog

Best Zopfli parameters so far:

Size	Improvement	Parameters	Found
20896 bytes	-1 byte	zopfli --i100000 --mls256 --bsr11 --lazy --ohh	November 26, 2015 @ 10:58
20897 bytes	-2 bytes	zopfli --i10000 --mls256 --bsr11 --lazy --ohh	September 24, 2015 @ 10:25
20899 bytes	-1 byte	zopfli --i1000 --mls256 --bsr11 --lazy --ohh	September 17, 2015 @ 05:51
20900 bytes	-2 bytes	zopfli --i1000 --mls8192 --bsr8 --lazy --ohh	September 7, 2015 @ 22:38
20902 bytes	-1 byte	zopfli --i1000 --mls512 --bsr10 --lazy --ohh	September 7, 2015 @ 22:35
20903 bytes	–	zopfli --i100 --mls512 --bsr14 --lazy --ohh	September 7, 2015 @ 16:16

If there are multiple parameter sets yielding the same compressed size, only the first one found is shown.

Most recent activity on July 20, 2020 @ 12:55.

Heatmaps

This Zopfli heatmap visualizes how compression changes when modifying the --bsr and --mls parameter.
Cell's contents is the best filesize achieved (in bytes, hover with mouse over cells to see number of iterations).

Good parameters are green, bad are red. The best and worst are bold as well.
The brightness of the blue background color indicates how many iterations were processed:
10,000 or 100,000.

bsr \ mls	2	4	8	16	32	64	128	256	512	1024	2048	4096	8192	16384	32768
bsr \ mls	2	4	8	16	32	64	128	256	512	1024	2048	4096	8192	16384	32768
2	20932	20933	20933	20932	20928	20929	20932	20929	20930	20930	20922	20930	20914	20933	20958
4	20906	20905	20904	20906	20906	20905	20904	20906	20900	20912	20915	20906	20915	20927	20924
6	20908	20905	20907	20903	20900	20898	20930	20898	20899	20901	20899	20909	20922	20942	20932
7	20922	20902	20919	20921	20902	20899	20900	20898	20899	20920	20902	20904	20900	20937	20928
8	20898	20898	20900	20899	20898	20899	20900	20898	20906	20903	20899	20901	20899	20924	20920
9	20896	20903	20899	20905	20901	20899	20900	20900	20902	20901	20904	20901	20917	20923	20916
10	20896	20898	20898	20899	20900	20898	20900	20900	20898	20901	20901	20926	20899	20924	20913
11	20898	20899	20898	20900	20899	20898	20899	20896	20899	20902	20900	20903	20901	20926	20916
12	20898	20898	20898	20899	20899	20898	20901	20901	20904	20901	20900	20902	20899	20927	20913
13	20900	20899	20901	20900	20899	20900	20904	20901	20904	20904	20903	20901	20900	20924	20913
14	20906	20907	20908	20899	20898	20898	20901	20900	20898	20902	20901	20901	20899	20917	20930
15	20898	20896	20901	20899	20898	20899	20900	20898	20896	20899	20901	20901	20900	20917	20919
16	20898	20899	20898	20900	20899	20904	20907	20903	20903	20901	20902	20925	20901	20923	20915
17	20896	20896	20901	20899	20898	20902	20901	20901	20899	20900	20902	20901	20900	20925	20915
18	20896	20898	20900	20898	20900	20899	20901	20902	20900	20903	20914	20900	20899	20931	20917
19	20898	20899	20898	20899	20898	20902	20904	20902	20898	20901	20901	20900	20900	20924	20935
20	20898	20896	20899	20900	20900	20899	20901	20902	20900	20899	20903	20899	20925	20916	20915
21	20903	20903	20904	20900	20901	20899	20902	20902	20900	20902	20899	20900	20924	20926	20915
22	20909	20899	20899	20913	20902	20899	20902	20903	20898	20902	20902	20902	20900	20925	20913
23	20898	20899	20898	20902	20900	20898	20900	20899	20899	20900	20901	20900	20916	20924	20916
25	20898	20898	20899	20916	20898	20899	20902	20901	20899	20901	20900	20900	20908	20924	20916
30	20898	20896	20901	20900	20899	20900	20901	20897	20898	20901	20902	20901	20900	20924	20915
40	20899	20901	20900	20899	20898	20899	20902	20902	20899	20900	20902	20901	20900	20924	20915

Due to the Monte Carlo design of my search algorithm, not all parameters have reached the same number of iterations yet:

Iterations	Min. Bytes	Reduction	Coverage
100	20903 bytes	–	100%
1,000	20899 bytes	-4 bytes	100%
10,000	20897 bytes	-2 bytes	100%
100,000	20896 bytes	-1 byte	3.19%
1,000,000	–	–	–
10,000,000	–	–	–

KZIP has far less options available for tuning/optimization. I only played around with the number of blocks (parameter -n):

Blocks	Min. Bytes	Compared To Best Zopfli	Compared To Best KZIP
(any)	20977 bytes	+81 bytes (+0.39%)	+51 bytes
1	21376 bytes	+480 bytes (+2.30%)	+450 bytes
2	20977 bytes	+81 bytes (+0.39%)	+51 bytes
3	20992 bytes	+96 bytes (+0.46%)	+66 bytes
4	20926 bytes	+30 bytes (+0.14%)	–
5	20947 bytes	+51 bytes (+0.24%)	+21 bytes
6	20988 bytes	+92 bytes (+0.44%)	+62 bytes
7	21019 bytes	+123 bytes (+0.59%)	+93 bytes
8	21048 bytes	+152 bytes (+0.73%)	+122 bytes

Non-DEFLATE Algorithms

Archivers based on completely different compression algorithms often produce superior results.
Unfortunately, browsers only support gzip compression at the moment.
However, support for Brotli is constantly growing - but your browser doesn't support it.

Algorithm	Program	Parameters	Size	Compared To Best Zopfli
ZPAQ (Wikipedia)	zpaq	zpaq -method 69	18498 bytes	-2398 bytes (-11.48%)
RAR (proprietary)	RAR	rar a -m5 -md64m -mc63:128t -mt1	18872 bytes	-2024 bytes (-9.69%)
Brotli (Wikipedia)	brotli	brotli -q 11	19383 bytes	-1513 bytes (-7.24%)
PPMd (Wikipedia)	7zip	7za a -mx=9 -m0=ppmd	19717 bytes	-1179 bytes (-5.64%)
LZMA2 (Wikipedia)	xz	xz -9	20572 bytes	-324 bytes (-1.55%)
Zstandard (Wikipedia)	zstd	zstd -19	21148 bytes	+252 bytes (+1.21%)
Burrows-Wheeler transform (Wikipedia)	bzip2	bzip2 -9	21167 bytes	+271 bytes (+1.30%)

Detailled Analysis

I wrote a DEFLATE decoder in Javascript. Click the button below to start a client-side analysis of the smallest gzipped files (may take a second):

Load and Parse Data

Notes: pigz is a fast open source multi-threaded implementation of gzip written by one of the original authors of gzip.
However, when using compression level 11, pigz actually switches to the slower Zopfli algorithm and isn't multi-threaded anymore.
KrzyMOD's extensions to Zopfli offer the highest level of configuration and is therefore used for my brute-force search.
Ken Silverman wrote the closed-source KZIP compression program and Jonathon Fowler ported it to Linux.
Defluff was created by Joachim Henke; DeflOpt is a tool by Ben Jos Walbeehm.

website made by Stephan Brumme in 2015 and still improving in 2024.
all timestamps are displayed in central european time. see my changelog.
no flash, not even images or external css files - and everything squeezed into a single html file.
which was handsomely compressed before releasing it into the wild internet - obviously.

please visit my homepage and my blog, too.
email: minime (at) stephan-brumme.com

All trademarks are property of their respective owners. You know, the boring legal stuff.