AngularJS 1.5.9 - as small as it gets (near-perfect GZIP compression)

Choose a version:

The original file has 1210835 bytes (1,182.5k) and is available from the project website.
There you can find the official minified version, too, which brings down the size to 162536 bytes (158.7k, 13%).

After GZIP compression these minified files vary in size:

Boot	65901 bytes (64.4k)	CDN
cdnjs	57569 bytes (56.2k)	CDN
unpkg	57166 bytes (55.8k)	CDN
gzip -6 (default)	57161 bytes (55.8k)	local copy
Google	57127 bytes (55.8k)	CDN
gzip -9	57055 bytes (55.7k)	local copy
7zip -mx=9 -tgzip	55362 bytes (54.1k)	local copy
kzip -s0 -rn -b8	55319 bytes (54.0k)	local copy
libdeflate -12	55309 bytes (54.0k)	local copy
zultra	55302 bytes (54.0k)	local copy
pigz -11 -n	55260 bytes (54.0k)	local copy
Zopfli	55195 bytes (53.9k)	local copy
Zopfli (defluff)	55194 bytes (53.9k)	local copy

perma-link to the smallest file on my server:
http://minime.stephan-brumme.com/files/angularjs/angular-1.5.9.min.js (or via HTTPS)

You will automatically get the smallest AngularJS 1.5.9 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 1932 bytes by using my AngularJS 1.5.9 Zopfli version instead of the best available CDN (3.50% smaller than Google, 55195 vs. 57127 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 --bsr16 --lazy --ohh

(found November 25, 2016)

Description	Value	Parameter
iterations	1000000	--i1000000
maximum blocks	8	--mb8
maximum length score	16384	--mls16384
block splitting recursion	16	--bsr16
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 (55194 bytes).

Download

Verify file integrity

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

MD5:
curl --silent --compressed https://code.angularjs.org/1.5.9/angular.min.js --location | md5sum
5cc821195b6fa4846144538a50e512e1 -
curl --silent --compressed https://minime.stephan-brumme.com/files/angularjs/angular-1.5.9.min.zopfli.js.gz | md5sum
5cc821195b6fa4846144538a50e512e1 -

SHA1:
curl --silent --compressed https://code.angularjs.org/1.5.9/angular.min.js --location | sha1sum
ab51807bc99fa00572b422afde4057777e52885b -
curl --silent --compressed https://minime.stephan-brumme.com/files/angularjs/angular-1.5.9.min.zopfli.js.gz | sha1sum
ab51807bc99fa00572b422afde4057777e52885b -

All listed CDNs deliver identical contents:

CDN	Size (compressed)	MD5 (uncompressed)	Timestamp
Boot	65901 bytes	5cc821195b6fa4846144538a50e512e1	November 28, 2016 @ 17:03
cdnjs	57569 bytes	5cc821195b6fa4846144538a50e512e1	November 26, 2016 @ 12:02
unpkg	57166 bytes	5cc821195b6fa4846144538a50e512e1	November 25, 2016 @ 10:43
Google	57127 bytes	5cc821195b6fa4846144538a50e512e1	November 25, 2016 @ 08:07

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
55195 bytes	-3 bytes	zopfli --i1000000 --mls16384 --bsr16 --lazy --ohh	November 25, 2016 @ 21:43
55198 bytes	-5 bytes	zopfli --i100000 --mls16384 --bsr16 --lazy --ohh	November 25, 2016 @ 11:50
55203 bytes	-3 bytes	zopfli --i10000 --mls16384 --bsr16 --lazy --ohh	November 25, 2016 @ 10:58
55206 bytes	-28 bytes	zopfli --i1000 --mls16384 --bsr16 --lazy --ohh	November 25, 2016 @ 10:52
55234 bytes	-12 bytes	zopfli --i1000 --mls2048 --bsr40 --lazy --ohh	November 25, 2016 @ 10:52
55246 bytes	–	zopfli --i100 --mls2048 --bsr17 --lazy --ohh	November 25, 2016 @ 10:47

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 @ 12:50.

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	55268	55250	55250	55250	55251	55251	55243	55251	55251	55248	55255	55226	55237	55229	55251
4	55241	55253	55245	55246	55244	55241	55241	55232	55232	55232	55233	55228	55231	55242	55242
6	55245	55244	55243	55243	55238	55239	55242	55232	55233	55231	55241	55218	55232	55242	55237
7	55254	55257	55254	55252	55235	55244	55217	55232	55240	55232	55240	55217	55231	55242	55239
8	55242	55253	55242	55240	55226	55235	55241	55231	55235	55221	55239	55217	55226	55223	55232
9	55245	55244	55244	55245	55245	55244	55227	55232	55218	55231	55239	55219	55217	55246	55242
10	55245	55241	55243	55242	55241	55241	55237	55226	55221	55233	55226	55218	55231	55242	55239
11	55244	55244	55246	55248	55232	55235	55238	55231	55218	55233	55230	55221	55231	55242	55237
12	55246	55257	55254	55247	55246	55235	55221	55232	55218	55231	55244	55218	55231	55240	55231
13	55248	55246	55247	55253	55234	55240	55227	55239	55218	55233	55228	55218	55231	55227	55240
14	55241	55243	55242	55247	55238	55242	55244	55232	55218	55232	55229	55221	55218	55242	55239
15	55250	55253	55242	55248	55239	55242	55229	55234	55218	55233	55227	55220	55231	55231	55239
16	55244	55243	55243	55243	55238	55227	55237	55244	55218	55231	55227	55218	55231	55195	55230
17	55245	55247	55245	55239	55239	55235	55235	55233	55218	55231	55227	55219	55231	55228	55238
18	55244	55247	55242	55239	55240	55241	55228	55231	55218	55232	55228	55218	55231	55242	55237
19	55249	55249	55242	55248	55238	55241	55240	55231	55219	55233	55227	55221	55231	55240	55238
20	55246	55245	55245	55239	55226	55234	55241	55235	55217	55231	55228	55222	55231	55242	55239
21	55247	55248	55247	55242	55237	55240	55248	55232	55218	55233	55227	55221	55231	55241	55237
22	55244	55244	55252	55241	55241	55241	55240	55226	55218	55231	55227	55217	55231	55242	55238
23	55243	55243	55242	55242	55239	55238	55237	55232	55232	55231	55227	55218	55231	55235	55228
25	55243	55247	55251	55243	55238	55241	55227	55232	55232	55239	55243	55231	55231	55231	55239
30	55240	55249	55239	55236	55240	55237	55233	55232	55227	55233	55228	55221	55231	55240	55239
40	55241	55241	55237	55238	55222	55231	55222	55231	55216	55233	55227	55218	55231	55236	55239

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	55246 bytes	–	100%
1,000	55206 bytes	-40 bytes	100%
10,000	55203 bytes	-3 bytes	100%
100,000	55198 bytes	-5 bytes	9.28%
1,000,000	55195 bytes	-3 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)	55339 bytes	+144 bytes (+0.26%)	+20 bytes
1	55330 bytes	+135 bytes (+0.24%)	+11 bytes
2	55369 bytes	+174 bytes (+0.32%)	+50 bytes
3	55357 bytes	+162 bytes (+0.29%)	+38 bytes
4	55368 bytes	+173 bytes (+0.31%)	+49 bytes
5	55374 bytes	+179 bytes (+0.32%)	+55 bytes
6	55375 bytes	+180 bytes (+0.33%)	+56 bytes
7	55398 bytes	+203 bytes (+0.37%)	+79 bytes
8	55319 bytes	+124 bytes (+0.22%)	–

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	42788 bytes	-12407 bytes (-22.48%)
RAR (proprietary)	RAR	rar a -m5 -md64m -mc63:128t -mt1	45202 bytes	-9993 bytes (-18.10%)
PPMd (Wikipedia)	7zip	7za a -mx=9 -m0=ppmd	46810 bytes	-8385 bytes (-15.19%)
Brotli (Wikipedia)	brotli	brotli -q 11	50211 bytes	-4984 bytes (-9.03%)
Burrows-Wheeler transform (Wikipedia)	bzip2	bzip2 -9	50984 bytes	-4211 bytes (-7.63%)
LZMA2 (Wikipedia)	xz	xz -9	51712 bytes	-3483 bytes (-6.31%)
Zstandard (Wikipedia)	zstd	zstd -19	53211 bytes	-1984 bytes (-3.59%)

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.