AngularJS 1.4.13 - as small as it gets (near-perfect GZIP compression)

Choose a version:

The original file has 1100595 bytes (1,074.8k) and is available from the project website.
There you can find the official minified version, too, which brings down the size to 151165 bytes (147.6k, 14%).

After GZIP compression these minified files vary in size:

Boot	61719 bytes (60.3k)	CDN
cdnjs	53996 bytes (52.7k)	CDN
unpkg	53640 bytes (52.4k)	CDN
gzip -6 (default)	53635 bytes (52.4k)	local copy
Google	53571 bytes (52.3k)	CDN
gzip -9	53554 bytes (52.3k)	local copy
kzip -s0 -rn -b0	51866 bytes (50.7k)	local copy
libdeflate -12	51862 bytes (50.6k)	local copy
7zip -mx=9 -tgzip	51853 bytes (50.6k)	local copy
zultra	51839 bytes (50.6k)	local copy
pigz -11 -n	51815 bytes (50.6k)	local copy
Zopfli	51724 bytes (50.5k)	local copy
Zopfli (defluff)	51723 bytes (50.5k)	local copy

perma-link to the smallest file on my server:
http://minime.stephan-brumme.com/files/angularjs/angular-1.4.13.min.js (or via HTTPS)

You will automatically get the smallest AngularJS 1.4.13 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 1847 bytes by using my AngularJS 1.4.13 Zopfli version instead of the best available CDN (3.57% smaller than Google, 51724 vs. 53571 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 --mls16 --bsr21 --lazy --ohh

(found October 13, 2016)

Description	Value	Parameter
iterations	1000000	--i1000000
maximum blocks	8	--mb8
maximum length score	16	--mls16
block splitting recursion	21	--bsr21
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 (51723 bytes).

Download

Verify file integrity

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

MD5:
curl --silent --compressed https://code.angularjs.org/1.4.13/angular.min.js --location | md5sum
929928991c55ff75d583f5eead1fd04f -
curl --silent --compressed https://minime.stephan-brumme.com/files/angularjs/angular-1.4.13.min.zopfli.js.gz | md5sum
929928991c55ff75d583f5eead1fd04f -

SHA1:
curl --silent --compressed https://code.angularjs.org/1.4.13/angular.min.js --location | sha1sum
1e9139aed49245767ba27cb9819fa2389ed77156 -
curl --silent --compressed https://minime.stephan-brumme.com/files/angularjs/angular-1.4.13.min.zopfli.js.gz | sha1sum
1e9139aed49245767ba27cb9819fa2389ed77156 -

All listed CDNs deliver identical contents:

CDN	Size (compressed)	MD5 (uncompressed)	Timestamp
Boot	61719 bytes	929928991c55ff75d583f5eead1fd04f	October 12, 2016 @ 16:12
cdnjs	53996 bytes	929928991c55ff75d583f5eead1fd04f	October 11, 2016 @ 10:02
unpkg	53640 bytes	929928991c55ff75d583f5eead1fd04f	October 12, 2016 @ 00:21
Google	53571 bytes	929928991c55ff75d583f5eead1fd04f	November 22, 2016 @ 20:39

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
51724 bytes	-2 bytes	zopfli --i1000000 --mls16 --bsr21 --lazy --ohh	October 13, 2016 @ 07:15
51726 bytes	-3 bytes	zopfli --i100000 --mls16 --bsr21 --lazy --ohh	October 12, 2016 @ 01:24
51729 bytes	-1 byte	zopfli --i10000 --mls16 --bsr21 --lazy --ohh	October 11, 2016 @ 09:24
51730 bytes	-2 bytes	zopfli --i100000 --mls8 --bsr20 --lazy --ohh	October 11, 2016 @ 07:04
51732 bytes	-1 byte	zopfli --i10000 --mls8 --bsr20 --lazy --ohh	October 11, 2016 @ 06:26
51733 bytes	-4 bytes	zopfli --i1000 --mls8 --bsr20 --lazy --ohh	October 11, 2016 @ 06:17
51737 bytes	-4 bytes	zopfli --i1000 --mls32768 --bsr22 --lazy --ohh	October 11, 2016 @ 06:17
51741 bytes	-10 bytes	zopfli --i1000 --mls32768 --bsr14 --lazy --ohh	October 11, 2016 @ 06:16
51751 bytes	–	zopfli --i100 --mls32768 --bsr14 --lazy --ohh	October 11, 2016 @ 06:09

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 @ 12:43.

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	51790	51791	51791	51789	51790	51792	51792	51794	51791	51790	51779	51781	51784	51780	51789
4	51770	51746	51748	51746	51778	51762	51765	51771	51770	51776	51773	51763	51772	51760	51765
6	51759	51734	51732	51750	51755	51760	51760	51761	51756	51762	51760	51760	51774	51764	51766
7	51753	51762	51751	51733	51763	51778	51774	51783	51748	51762	51781	51772	51775	51761	51762
8	51770	51741	51776	51724	51753	51771	51772	51773	51756	51759	51752	51761	51781	51761	51760
9	51763	51748	51754	51739	51753	51757	51760	51756	51773	51771	51761	51763	51774	51761	51732
10	51760	51753	51753	51755	51773	51750	51754	51753	51757	51763	51761	51761	51774	51765	51761
11	51757	51756	51731	51742	51762	51757	51759	51753	51754	51766	51748	51750	51772	51764	51736
12	51757	51767	51769	51768	51764	51760	51759	51752	51761	51762	51749	51773	51775	51761	51733
13	51758	51751	51791	51742	51762	51771	51759	51772	51761	51768	51761	51764	51775	51749	51731
14	51757	51768	51741	51748	51776	51757	51760	51752	51747	51762	51749	51749	51773	51752	51735
15	51764	51757	51746	51731	51749	51758	51760	51772	51761	51763	51747	51747	51774	51761	51733
16	51760	51744	51740	51746	51752	51761	51762	51753	51761	51762	51764	51773	51774	51761	51761
17	51763	51754	51748	51739	51752	51757	51759	51759	51742	51772	51762	51749	51775	51760	51760
18	51771	51741	51740	51744	51745	51760	51759	51771	51772	51762	51762	51762	51774	51761	51734
19	51760	51746	51732	51742	51754	51757	51759	51772	51753	51763	51752	51748	51774	51761	51761
20	51760	51742	51730	51733	51751	51757	51759	51753	51757	51762	51750	51762	51775	51761	51735
21	51759	51746	51744	51724	51751	51757	51760	51752	51752	51762	51748	51748	51773	51760	51732
22	51760	51740	51736	51737	51744	51756	51761	51752	51746	51762	51753	51749	51773	51754	51734
23	51761	51756	51748	51728	51752	51758	51759	51752	51748	51762	51747	51748	51774	51762	51734
25	51755	51757	51753	51750	51761	51748	51749	51754	51742	51763	51750	51749	51774	51753	51773
30	51750	51753	51753	51747	51743	51746	51748	51748	51748	51751	51761	51741	51777	51761	51733
40	51746	51750	51760	51747	51748	51750	51751	51747	51743	51752	51740	51756	51775	51761	51733

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	51751 bytes	–	100%
1,000	51733 bytes	-18 bytes	100%
10,000	51729 bytes	-4 bytes	100%
100,000	51726 bytes	-3 bytes	1.16%
1,000,000	51724 bytes	-2 bytes	0.58%
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)	51866 bytes	+142 bytes (+0.27%)	–
1	51866 bytes	+142 bytes (+0.27%)	–
2	51881 bytes	+157 bytes (+0.30%)	+15 bytes
3	51881 bytes	+157 bytes (+0.30%)	+15 bytes
4	51893 bytes	+169 bytes (+0.33%)	+27 bytes
5	51917 bytes	+193 bytes (+0.37%)	+51 bytes
6	51914 bytes	+190 bytes (+0.37%)	+48 bytes
7	51934 bytes	+210 bytes (+0.41%)	+68 bytes
8	51921 bytes	+197 bytes (+0.38%)	+55 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	40271 bytes	-11453 bytes (-22.14%)
RAR (proprietary)	RAR	rar a -m5 -md64m -mc63:128t -mt1	42481 bytes	-9243 bytes (-17.87%)
PPMd (Wikipedia)	7zip	7za a -mx=9 -m0=ppmd	43868 bytes	-7856 bytes (-15.19%)
Brotli (Wikipedia)	brotli	brotli -q 11	47060 bytes	-4664 bytes (-9.02%)
Burrows-Wheeler transform (Wikipedia)	bzip2	bzip2 -9	47918 bytes	-3806 bytes (-7.36%)
LZMA2 (Wikipedia)	xz	xz -9	48532 bytes	-3192 bytes (-6.17%)
Zstandard (Wikipedia)	zstd	zstd -19	49984 bytes	-1740 bytes (-3.36%)

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.