AngularJS 1.4.10 - as small as it gets (near-perfect GZIP compression)

Choose a version:

The original file has 1099248 bytes (1,073.5k) and is available from the project website.
There you can find the official minified version, too, which brings down the size to 151003 bytes (147.5k, 14%).

After GZIP compression these minified files vary in size:

Boot	61609 bytes (60.2k)	CDN
cdnjs	53923 bytes (52.7k)	CDN
unpkg	53570 bytes (52.3k)	CDN
gzip -6 (default)	53558 bytes (52.3k)	local copy
Google	53499 bytes (52.2k)	CDN
gzip -9	53477 bytes (52.2k)	local copy
libdeflate -12	51818 bytes (50.6k)	local copy
kzip -s0 -rn -b1	51801 bytes (50.6k)	local copy
7zip -mx=9 -tgzip	51799 bytes (50.6k)	local copy
zultra	51778 bytes (50.6k)	local copy
pigz -11 -n	51755 bytes (50.5k)	local copy
Zopfli	51659 bytes (50.4k)	local copy

perma-link to the smallest file on my server:
http://minime.stephan-brumme.com/files/angularjs/angular-1.4.10.min.js (or via HTTPS)

You will automatically get the smallest AngularJS 1.4.10 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 1840 bytes by using my AngularJS 1.4.10 Zopfli version instead of the best available CDN (3.56% smaller than Google, 51659 vs. 53499 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 --i1000000 --mb8 --mls16384 --bsr23 --lazy --ohh

(found March 18, 2016)

Description	Value	Parameter
iterations	1000000	--i1000000
maximum blocks	8	--mb8
maximum length score	16384	--mls16384
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/1.4.10/angular.min.js --location | md5sum
05f1e63510d06b227d6bd8fccbd5b9f8 -
curl --silent --compressed https://minime.stephan-brumme.com/files/angularjs/angular-1.4.10.min.zopfli.js.gz | md5sum
05f1e63510d06b227d6bd8fccbd5b9f8 -

SHA1:
curl --silent --compressed https://code.angularjs.org/1.4.10/angular.min.js --location | sha1sum
7af0dc308bccaac3a14d02bf8eb8d85d56a490ed -
curl --silent --compressed https://minime.stephan-brumme.com/files/angularjs/angular-1.4.10.min.zopfli.js.gz | sha1sum
7af0dc308bccaac3a14d02bf8eb8d85d56a490ed -

All listed CDNs deliver identical contents:

CDN	Size (compressed)	MD5 (uncompressed)	Timestamp
Boot	61609 bytes	05f1e63510d06b227d6bd8fccbd5b9f8	May 3, 2016 @ 10:26
cdnjs	53923 bytes	05f1e63510d06b227d6bd8fccbd5b9f8	March 17, 2016 @ 08:01
unpkg	53570 bytes	05f1e63510d06b227d6bd8fccbd5b9f8	July 11, 2016 @ 15:52
Google	53499 bytes	05f1e63510d06b227d6bd8fccbd5b9f8	March 22, 2016 @ 22:25

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
51659 bytes	-4 bytes	zopfli --i1000000 --mls16384 --bsr23 --lazy --ohh	March 18, 2016 @ 01:06
51663 bytes	-2 bytes	zopfli --i100000 --mls16384 --bsr23 --lazy --ohh	March 17, 2016 @ 17:55
51665 bytes	-3 bytes	zopfli --i10000 --mls16384 --bsr23 --lazy --ohh	March 17, 2016 @ 16:52
51668 bytes	-5 bytes	zopfli --i1000 --mls16384 --bsr23 --lazy --ohh	March 17, 2016 @ 16:15
51673 bytes	-11 bytes	zopfli --i10000 --mls64 --bsr30 --lazy --ohh	March 17, 2016 @ 16:03
51684 bytes	-4 bytes	zopfli --i1000 --mls64 --bsr30 --lazy --ohh	March 17, 2016 @ 15:51
51688 bytes	–	zopfli --i100 --mls64 --bsr30 --lazy --ohh	March 17, 2016 @ 15:36

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 @ 12:53.

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, 100,000 or 1,000,000.

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	51724	51722	51724	51723	51723	51723	51726	51728	51726	51718	51713	51713	51706	51726	51722
4	51710	51706	51705	51704	51700	51697	51688	51698	51705	51693	51698	51698	51705	51705	51695
6	51693	51693	51693	51692	51695	51682	51682	51682	51695	51693	51705	51705	51706	51680	51695
7	51700	51681	51692	51691	51700	51702	51693	51686	51697	51701	51694	51697	51705	51680	51693
8	51698	51682	51693	51691	51705	51699	51683	51695	51696	51690	51692	51708	51713	51679	51692
9	51693	51693	51691	51693	51692	51682	51689	51682	51692	51696	51695	51705	51705	51676	51692
10	51694	51692	51694	51693	51701	51691	51683	51694	51695	51684	51706	51697	51706	51699	51692
11	51695	51693	51693	51691	51692	51701	51686	51696	51705	51685	51697	51697	51705	51705	51696
12	51694	51696	51693	51707	51692	51691	51683	51682	51695	51692	51694	51697	51705	51705	51693
13	51692	51693	51691	51690	51702	51693	51687	51683	51695	51683	51695	51697	51705	51695	51692
14	51696	51693	51691	51691	51691	51688	51691	51697	51691	51701	51705	51697	51705	51699	51691
15	51701	51692	51691	51690	51691	51689	51683	51694	51695	51689	51695	51697	51705	51706	51692
16	51693	51693	51693	51692	51693	51685	51688	51695	51696	51684	51693	51697	51705	51698	51697
17	51692	51695	51693	51690	51691	51684	51684	51694	51697	51683	51694	51697	51705	51702	51693
18	51694	51693	51691	51690	51690	51688	51683	51682	51695	51684	51695	51696	51705	51698	51692
19	51694	51693	51692	51691	51691	51682	51682	51694	51695	51684	51695	51696	51705	51694	51693
20	51693	51694	51693	51691	51693	51690	51683	51682	51696	51686	51694	51697	51705	51691	51693
21	51696	51693	51692	51692	51692	51691	51682	51682	51692	51682	51694	51697	51705	51692	51698
22	51698	51694	51692	51690	51692	51681	51701	51695	51696	51686	51695	51697	51705	51697	51693
23	51693	51694	51692	51690	51700	51702	51694	51694	51698	51693	51697	51705	51705	51659	51698
25	51684	51692	51696	51690	51691	51681	51688	51694	51694	51692	51696	51705	51705	51705	51693
30	51684	51686	51685	51684	51696	51671	51688	51677	51697	51686	51694	51697	51705	51702	51693
40	51685	51687	51686	51685	51686	51684	51681	51676	51686	51681	51693	51697	51705	51680	51693

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	51688 bytes	–	100%
1,000	51668 bytes	-20 bytes	100%
10,000	51665 bytes	-3 bytes	100%
100,000	51663 bytes	-2 bytes	0.58%
1,000,000	51659 bytes	-4 bytes	0.29%
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)	51804 bytes	+145 bytes (+0.28%)	+3 bytes
1	51801 bytes	+142 bytes (+0.27%)	–
2	51820 bytes	+161 bytes (+0.31%)	+19 bytes
3	51829 bytes	+170 bytes (+0.33%)	+28 bytes
4	51836 bytes	+177 bytes (+0.34%)	+35 bytes
5	51846 bytes	+187 bytes (+0.36%)	+45 bytes
6	51842 bytes	+183 bytes (+0.35%)	+41 bytes
7	51827 bytes	+168 bytes (+0.33%)	+26 bytes
8	51857 bytes	+198 bytes (+0.38%)	+56 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	40215 bytes	-11444 bytes (-22.15%)
RAR (proprietary)	RAR	rar a -m5 -md64m -mc63:128t -mt1	42437 bytes	-9222 bytes (-17.85%)
PPMd (Wikipedia)	7zip	7za a -mx=9 -m0=ppmd	43772 bytes	-7887 bytes (-15.27%)
Brotli (Wikipedia)	brotli	brotli -q 11	46966 bytes	-4693 bytes (-9.08%)
Burrows-Wheeler transform (Wikipedia)	bzip2	bzip2 -9	47856 bytes	-3803 bytes (-7.36%)
LZMA2 (Wikipedia)	xz	xz -9	48464 bytes	-3195 bytes (-6.18%)
Zstandard (Wikipedia)	zstd	zstd -19	49891 bytes	-1768 bytes (-3.42%)

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 2026.
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.