AngularJS 1.1.0 - as small as it gets (near-perfect GZIP compression)

Choose a version:

The original file has 476920 bytes (465.7k) and is available from the project website.
There you can find the official minified version, too, which brings down the size to 78453 bytes (76.6k, 16%).

After GZIP compression these minified files vary in size:

Boot	33280 bytes (32.5k)	CDN
Baidu	29575 bytes (28.9k)	CDN
cdnjs	29477 bytes (28.8k)	CDN
gzip -6 (default)	29348 bytes (28.7k)	local copy
Sina	29301 bytes (28.6k)	CDN
gzip -9	29290 bytes (28.6k)	local copy
libdeflate -12	28435 bytes (27.8k)	local copy
7zip -mx=9 -tgzip	28418 bytes (27.8k)	local copy
kzip -s0 -rn -b0	28396 bytes (27.7k)	local copy
zultra	28393 bytes (27.7k)	local copy
pigz -11 -n	28369 bytes (27.7k)	local copy
Zopfli	28338 bytes (27.7k)	local copy

perma-link to the smallest file on my server:
http://minime.stephan-brumme.com/files/angularjs/angular-1.1.0.min.js (or via HTTPS)

You will automatically get the smallest AngularJS 1.1.0 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 963 bytes by using my AngularJS 1.1.0 Zopfli version instead of the best available CDN (3.40% smaller than Sina, 28338 vs. 29301 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 --mls32 --bsr22 --lazy --ohh

(found November 26, 2015)

Description	Value	Parameter
iterations	100000	--i100000
maximum blocks	8	--mb8
maximum length score	32	--mls32
block splitting recursion	22	--bsr22
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/1.1.0/angular-1.1.0.min.js --location | md5sum
d57ae6877bc8942db466fa3bd41626ed -
curl --silent --compressed https://minime.stephan-brumme.com/files/angularjs/angular-1.1.0.min.zopfli.js.gz | md5sum
d57ae6877bc8942db466fa3bd41626ed -

SHA1:
curl --silent --compressed https://code.angularjs.org/1.1.0/angular-1.1.0.min.js --location | sha1sum
5710b2036a1fd29f152b02db667f5581cf5394a5 -
curl --silent --compressed https://minime.stephan-brumme.com/files/angularjs/angular-1.1.0.min.zopfli.js.gz | sha1sum
5710b2036a1fd29f152b02db667f5581cf5394a5 -

These CDNs send you the original file:

CDN	Size (compressed)	MD5 (uncompressed)	Timestamp
Boot	33280 bytes	d57ae6877bc8942db466fa3bd41626ed	March 18, 2015 @ 10:16
cdnjs	29477 bytes	d57ae6877bc8942db466fa3bd41626ed	January 24, 2014 @ 03:45
Sina	29301 bytes	d57ae6877bc8942db466fa3bd41626ed	(invalid)

And some CDNs send you a different file:

CDN	Size (compressed)	MD5 (uncompressed)	Comment / Diff	Timestamp
Baidu	29575 bytes	7bf889be9d1b96a23e8ca2fd650cf170	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
28338 bytes	-1 byte	zopfli --i100000 --mls32 --bsr22 --lazy --ohh	November 26, 2015 @ 17:50
28339 bytes	-1 byte	zopfli --i10000 --mls32 --bsr22 --lazy --ohh	November 26, 2015 @ 16:33
28340 bytes	-2 bytes	zopfli --i10000 --mls16384 --bsr19 --lazy --ohh	November 26, 2015 @ 16:26
28342 bytes	-2 bytes	zopfli --i10000 --mls64 --bsr17 --lazy --ohh	November 26, 2015 @ 16:09
28344 bytes	-1 byte	zopfli --i10000 --mls512 --bsr13 --lazy --ohh	September 10, 2015 @ 05:37
28345 bytes	-2 bytes	zopfli --i10000 --mls512 --bsr9 --lazy --ohh	September 10, 2015 @ 05:28
28347 bytes	-3 bytes	zopfli --i1000 --mls512 --bsr13 --lazy --ohh	September 7, 2015 @ 20:58
28350 bytes	-3 bytes	zopfli --i1000 --mls512 --bsr8 --lazy --ohh	September 7, 2015 @ 20:57
28353 bytes	–	zopfli --i100 --mls1024 --bsr6 --lazy --ohh	September 7, 2015 @ 16:34

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 @ 12:48.

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	28361	28357	28349	28350	28348	28354	28342	28350	28351	28350	28359	28352	28344	28353	28355
4	28354	28365	28359	28353	28360	28359	28350	28348	28348	28352	28350	28350	28350	28363	28350
6	28358	28362	28357	28354	28356	28349	28366	28355	28364	28345	28358	28363	28357	28362	28363
7	28358	28359	28357	28354	28358	28353	28355	28352	28351	28355	28357	28353	28355	28343	28366
8	28352	28363	28351	28350	28349	28343	28346	28349	28348	28350	28350	28347	28357	28344	28362
9	28364	28364	28361	28348	28351	28353	28350	28349	28345	28350	28348	28346	28354	28341	28352
10	28364	28363	28362	28348	28350	28345	28347	28346	28351	28355	28358	28347	28351	28358	28364
11	28364	28365	28348	28349	28343	28346	28350	28350	28345	28348	28358	28344	28357	28340	28351
12	28362	28361	28357	28357	28350	28345	28350	28349	28348	28350	28348	28354	28352	28368	28362
13	28355	28353	28354	28351	28349	28347	28349	28349	28344	28349	28357	28348	28365	28343	28353
14	28364	28351	28357	28348	28343	28342	28345	28349	28347	28350	28349	28347	28356	28343	28364
15	28364	28365	28351	28352	28355	28343	28350	28350	28344	28350	28349	28346	28349	28345	28366
16	28364	28363	28357	28348	28347	28346	28349	28345	28345	28350	28358	28356	28354	28371	28363
17	28364	28364	28349	28346	28350	28342	28348	28348	28345	28350	28358	28354	28352	28365	28352
18	28364	28365	28357	28349	28351	28354	28350	28350	28344	28349	28357	28342	28349	28363	28356
19	28364	28364	28357	28350	28351	28350	28350	28348	28349	28350	28358	28349	28359	28340	28361
20	28363	28364	28357	28348	28342	28342	28350	28345	28346	28349	28347	28356	28351	28371	28362
21	28358	28363	28358	28348	28345	28348	28349	28350	28346	28350	28357	28350	28357	28343	28352
22	28354	28367	28357	28348	28338	28343	28350	28343	28344	28350	28349	28361	28350	28344	28360
23	28354	28363	28358	28348	28351	28343	28350	28346	28343	28350	28358	28347	28353	28342	28357
25	28363	28364	28357	28361	28359	28356	28358	28343	28343	28351	28357	28344	28351	28366	28362
30	28357	28363	28358	28348	28350	28352	28347	28348	28346	28349	28359	28344	28351	28345	28352
40	28359	28364	28357	28349	28350	28343	28350	28349	28345	28348	28358	28354	28357	28367	28351

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	28350 bytes	–	100%
1,000	28345 bytes	-5 bytes	100%
10,000	28339 bytes	-6 bytes	100%
100,000	28338 bytes	-1 byte	0.58%
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)	28396 bytes	+58 bytes (+0.20%)	–
1	28397 bytes	+59 bytes (+0.21%)	+1 byte
2	28416 bytes	+78 bytes (+0.28%)	+20 bytes
3	28419 bytes	+81 bytes (+0.29%)	+23 bytes
4	28420 bytes	+82 bytes (+0.29%)	+24 bytes
5	28448 bytes	+110 bytes (+0.39%)	+52 bytes
6	28489 bytes	+151 bytes (+0.53%)	+93 bytes
7	28493 bytes	+155 bytes (+0.55%)	+97 bytes
8	28532 bytes	+194 bytes (+0.68%)	+136 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	23638 bytes	-4700 bytes (-16.59%)
RAR (proprietary)	RAR	rar a -m5 -md64m -mc63:128t -mt1	24236 bytes	-4102 bytes (-14.48%)
PPMd (Wikipedia)	7zip	7za a -mx=9 -m0=ppmd	25095 bytes	-3243 bytes (-11.44%)
Brotli (Wikipedia)	brotli	brotli -q 11	26111 bytes	-2227 bytes (-7.86%)
Burrows-Wheeler transform (Wikipedia)	bzip2	bzip2 -9	27118 bytes	-1220 bytes (-4.31%)
LZMA2 (Wikipedia)	xz	xz -9	27356 bytes	-982 bytes (-3.47%)
Zstandard (Wikipedia)	zstd	zstd -19	27947 bytes	-391 bytes (-1.38%)

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.