AngularJS 1.0.5 - as small as it gets (near-perfect GZIP compression)

Choose a version:

The original file has 488868 bytes (477.4k) and is available from the project website.
There you can find the official minified version, too, which brings down the size to 80008 bytes (78.1k, 16%).

After GZIP compression these minified files vary in size:

Boot	33941 bytes (33.1k)	CDN
Baidu	30201 bytes (29.5k)	CDN
cdnjs	30111 bytes (29.4k)	CDN
gzip -6 (default)	29978 bytes (29.3k)	local copy
Google	29957 bytes (29.3k)	CDN
gzip -9	29924 bytes (29.2k)	local copy
Sina	29922 bytes (29.2k)	CDN
7zip -mx=9 -tgzip	29048 bytes (28.4k)	local copy
libdeflate -12	29045 bytes (28.4k)	local copy
kzip -s0 -rn -b1	29016 bytes (28.3k)	local copy
zultra	29010 bytes (28.3k)	local copy
pigz -11 -n	28977 bytes (28.3k)	local copy
Zopfli	28956 bytes (28.3k)	local copy

perma-link to the smallest file on my server:
http://minime.stephan-brumme.com/files/angularjs/angular-1.0.5.min.js (or via HTTPS)

You will automatically get the smallest AngularJS 1.0.5 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 966 bytes by using my AngularJS 1.0.5 Zopfli version instead of the best available CDN (3.34% smaller than Sina, 28956 vs. 29922 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 --mls2 --bsr23 --lazy --ohh

(found February 12, 2016)

Description	Value	Parameter
iterations	100000	--i100000
maximum blocks	8	--mb8
maximum length score	2	--mls2
block splitting recursion	23	--bsr23
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

Verify file integrity

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

MD5:
curl --silent --compressed https://code.angularjs.org/1.0.5/angular-1.0.5.min.js --location | md5sum
32916703df7b29666deb89284e6ebc50 -
curl --silent --compressed https://minime.stephan-brumme.com/files/angularjs/angular-1.0.5.min.zopfli.js.gz | md5sum
32916703df7b29666deb89284e6ebc50 -

SHA1:
curl --silent --compressed https://code.angularjs.org/1.0.5/angular-1.0.5.min.js --location | sha1sum
4e373497331e8b403f2c5f17e334a2de386497f6 -
curl --silent --compressed https://minime.stephan-brumme.com/files/angularjs/angular-1.0.5.min.zopfli.js.gz | sha1sum
4e373497331e8b403f2c5f17e334a2de386497f6 -

These CDNs send you the original file:

CDN	Size (compressed)	MD5 (uncompressed)	Timestamp
Boot	33941 bytes	32916703df7b29666deb89284e6ebc50	March 18, 2015 @ 10:14
cdnjs	30111 bytes	32916703df7b29666deb89284e6ebc50	(invalid)
Google	29957 bytes	32916703df7b29666deb89284e6ebc50	(invalid)
Sina	29922 bytes	32916703df7b29666deb89284e6ebc50	(invalid)

And some CDNs send you a different file:

CDN	Size (compressed)	MD5 (uncompressed)	Comment / Diff	Timestamp
Baidu	30201 bytes	4dbcb24e3f62e70b6801e67248715fb0	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
28956 bytes	-3 bytes	zopfli --i100000 --mls2 --bsr23 --lazy --ohh	February 12, 2016 @ 12:44
28959 bytes	-1 byte	zopfli --i100000 --mls2048 --bsr22 --lazy --ohh	November 26, 2015 @ 17:04
28960 bytes	-2 bytes	zopfli --i100000 --mls1024 --bsr14 --lazy --ohh	November 26, 2015 @ 16:32
28962 bytes	-1 byte	zopfli --i10000 --mls1024 --bsr14 --lazy --ohh	September 10, 2015 @ 07:39
28963 bytes	-2 bytes	zopfli --i10000 --mls512 --bsr12 --lazy --ohh	September 10, 2015 @ 07:21
28965 bytes	-1 byte	zopfli --i1000 --mls1024 --bsr9 --lazy --ohh	September 7, 2015 @ 21:10
28966 bytes	-5 bytes	zopfli --i1000 --mls512 --bsr12 --lazy --ohh	September 7, 2015 @ 21:09
28971 bytes	–	zopfli --i100 --mls1024 --bsr14 --lazy --ohh	September 7, 2015 @ 16:21

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 @ 12:54.

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	28982	28987	28982	28975	28966	28965	28967	28984	28978	28967	28975	28986	28986	28973	28969
4	28988	28985	28982	28983	28985	28973	28971	28973	28974	28976	28972	28971	28984	28974	28976
6	28990	28985	28987	28980	28986	28979	28980	28974	28984	28970	28977	28978	28983	28974	28985
7	28988	28987	28972	28983	28982	28963	28964	28976	28966	28964	28966	28985	28985	28985	28988
8	28987	28989	28988	28983	28964	28962	28963	28984	28982	28964	28965	28986	28986	28988	28985
9	28990	28987	28987	28978	28986	28966	28964	28972	28975	28963	28966	28966	28982	28971	28966
10	28990	28987	28979	28971	28963	28965	28974	28972	28981	28970	28974	28983	28985	28972	28988
11	28979	28987	28987	28976	28964	28964	28960	28972	28978	28963	28966	28965	28985	28989	28984
12	28988	28987	28982	28965	28981	28974	28973	28972	28963	28963	28977	28975	28985	28971	28985
13	28987	28989	28982	28964	28963	28964	28963	28972	28966	28964	28972	28985	28982	28988	28983
14	28990	28986	28981	28976	28963	28971	28973	28971	28964	28960	28972	28968	28982	28972	28978
15	28990	28984	28982	28968	28980	28965	28964	28976	28964	28964	28966	28970	28985	28972	28985
16	28990	28989	28976	28965	28963	28963	28964	28984	28964	28981	28966	28985	28985	28972	28985
17	28990	28986	28987	28983	28963	28963	28964	28985	28983	28964	28976	28983	28985	28972	28966
18	28988	28987	28972	28969	28982	28963	28974	28976	28978	28971	28965	28975	28985	28972	28985
19	28990	28988	28983	28971	28983	28966	28973	28984	28967	28981	28982	28987	28984	28973	28984
20	28990	28992	28983	28964	28963	28964	28963	28971	28965	28965	28966	28974	28982	28973	28968
21	28979	28992	28988	28973	28981	28964	28973	28984	28977	28972	28968	28973	28985	28972	28973
22	28986	28989	28982	28963	28982	28966	28977	28985	28980	28981	28959	28971	28982	28971	28984
23	28956	28993	28984	28976	28962	28967	28962	28974	28977	28963	28974	28983	28982	28971	28989
25	28986	28987	28982	28980	28983	28977	28979	28971	28978	28969	28963	28973	28985	28970	28984
30	28981	28986	28982	28975	28979	28963	28973	28971	28963	28970	28967	28971	28985	28972	28985
40	28990	28988	28978	28977	28976	28964	28965	28984	28977	28964	28976	28985	28985	28973	28984

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	28971 bytes	–	100%
1,000	28964 bytes	-7 bytes	100%
10,000	28961 bytes	-3 bytes	100%
100,000	28956 bytes	-5 bytes	1.16%
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)	29016 bytes	+60 bytes (+0.21%)	–
1	29016 bytes	+60 bytes (+0.21%)	–
2	29048 bytes	+92 bytes (+0.32%)	+32 bytes
3	29060 bytes	+104 bytes (+0.36%)	+44 bytes
4	29069 bytes	+113 bytes (+0.39%)	+53 bytes
5	29099 bytes	+143 bytes (+0.49%)	+83 bytes
6	29125 bytes	+169 bytes (+0.58%)	+109 bytes
7	29110 bytes	+154 bytes (+0.53%)	+94 bytes
8	29142 bytes	+186 bytes (+0.64%)	+126 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 - for example, your browser actually supports it !

Algorithm	Program	Parameters	Size	Compared To Best Zopfli
ZPAQ (Wikipedia)	zpaq	zpaq -method 69	24121 bytes	-4835 bytes (-16.70%)
RAR (proprietary)	RAR	rar a -m5 -md64m -mc63:128t -mt1	24736 bytes	-4220 bytes (-14.57%)
PPMd (Wikipedia)	7zip	7za a -mx=9 -m0=ppmd	25586 bytes	-3370 bytes (-11.64%)
Brotli (Wikipedia)	brotli	brotli -q 11	26644 bytes	-2312 bytes (-7.98%)
Burrows-Wheeler transform (Wikipedia)	bzip2	bzip2 -9	27645 bytes	-1311 bytes (-4.53%)
LZMA2 (Wikipedia)	xz	xz -9	27924 bytes	-1032 bytes (-3.56%)
Zstandard (Wikipedia)	zstd	zstd -19	28568 bytes	-388 bytes (-1.34%)

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 2025.
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.