AngularJS 0.10.3 - as small as it gets (near-perfect GZIP compression)

Choose a version:

The original file has 401671 bytes (392.3k) and is available from the project website.
There you can find the official minified version, too, which brings down the size to 67178 bytes (65.6k, 17%).

After GZIP compression these minified files vary in size:

Boot	29112 bytes (28.4k)	CDN
Baidu	25974 bytes (25.4k)	CDN
cdnjs	25898 bytes (25.3k)	CDN
gzip -6 (default)	25709 bytes (25.1k)	local copy
gzip -9	25663 bytes (25.1k)	local copy
7zip -mx=9 -tgzip	24847 bytes (24.3k)	local copy
libdeflate -12	24801 bytes (24.2k)	local copy
zultra	24793 bytes (24.2k)	local copy
pigz -11 -n	24781 bytes (24.2k)	local copy
kzip -s0 -rn -b2	24780 bytes (24.2k)	local copy
Zopfli	24764 bytes (24.2k)	local copy

perma-link to the smallest file on my server:
http://minime.stephan-brumme.com/files/angularjs/angular-0.10.3.min.js (or via HTTPS)

You will automatically get the smallest AngularJS 0.10.3 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 1134 bytes by using my AngularJS 0.10.3 Zopfli version instead of the best available CDN (4.58% smaller than cdnjs, 24764 vs. 25898 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 --mls8192 --bsr10 --lazy --ohh

(found November 26, 2015)

Description	Value	Parameter
iterations	100000	--i100000
maximum blocks	8	--mb8
maximum length score	8192	--mls8192
block splitting recursion	10	--bsr10
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/0.10.3/angular-0.10.3.min.js --location | md5sum
ee6b014eabe16e2367e21b2f7a00ca53 -
curl --silent --compressed https://minime.stephan-brumme.com/files/angularjs/angular-0.10.3.min.zopfli.js.gz | md5sum
ee6b014eabe16e2367e21b2f7a00ca53 -

SHA1:
curl --silent --compressed https://code.angularjs.org/0.10.3/angular-0.10.3.min.js --location | sha1sum
5c98032ce2055d3c525415f6a03d8ba5882e4824 -
curl --silent --compressed https://minime.stephan-brumme.com/files/angularjs/angular-0.10.3.min.zopfli.js.gz | sha1sum
5c98032ce2055d3c525415f6a03d8ba5882e4824 -

These CDNs send you the original file:

CDN	Size (compressed)	MD5 (uncompressed)	Timestamp
Boot	29112 bytes	ee6b014eabe16e2367e21b2f7a00ca53	March 18, 2015 @ 10:00
cdnjs	25898 bytes	ee6b014eabe16e2367e21b2f7a00ca53	January 24, 2014 @ 03:45

And some CDNs send you a different file:

CDN	Size (compressed)	MD5 (uncompressed)	Comment / Diff	Timestamp
Baidu	25974 bytes	177a53a137c8a7ca635722eeca074f22	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
24764 bytes	-2 bytes	zopfli --i100000 --mls8192 --bsr10 --lazy --ohh	November 26, 2015 @ 14:28
24766 bytes	-1 byte	zopfli --i10000 --mls8192 --bsr10 --lazy --ohh	September 10, 2015 @ 23:29
24767 bytes	-1 byte	zopfli --i10000 --mls1024 --bsr8 --lazy --ohh	September 10, 2015 @ 11:17
24768 bytes	-1 byte	zopfli --i1000 --mls4096 --bsr13 --lazy --ohh	September 7, 2015 @ 22:51
24769 bytes	-2 bytes	zopfli --i1000 --mls512 --bsr12 --lazy --ohh	September 7, 2015 @ 22:49
24771 bytes	-3 bytes	zopfli --i1000 --mls512 --bsr9 --lazy --ohh	September 7, 2015 @ 22:49
24774 bytes	–	zopfli --i100 --mls8192 --bsr11 --lazy --ohh	September 7, 2015 @ 16:29

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	24774	24774	24774	24775	24774	24775	24775	24772	24773	24776	24777	24777	24777	24772	24787
4	24768	24767	24769	24770	24769	24768	24769	24767	24768	24769	24767	24769	24768	24780	24768
6	24769	24768	24768	24767	24770	24767	24767	24768	24768	24767	24767	24767	24769	24768	24768
7	24770	24768	24770	24769	24770	24768	24767	24767	24768	24770	24770	24767	24772	24781	24768
8	24767	24768	24769	24769	24768	24768	24767	24767	24768	24767	24770	24767	24764	24780	24767
9	24772	24771	24771	24769	24771	24768	24768	24767	24769	24767	24769	24767	24768	24767	24775
10	24770	24768	24769	24769	24768	24768	24767	24767	24771	24769	24767	24767	24764	24767	24768
11	24768	24768	24770	24768	24770	24767	24767	24767	24768	24767	24767	24767	24764	24769	24768
12	24767	24768	24769	24767	24770	24768	24769	24768	24768	24770	24768	24767	24769	24769	24767
13	24765	24768	24769	24767	24768	24768	24767	24768	24770	24767	24767	24767	24768	24781	24767
14	24769	24768	24765	24769	24770	24768	24768	24768	24768	24767	24767	24767	24768	24781	24768
15	24769	24768	24769	24769	24768	24768	24768	24768	24770	24767	24770	24767	24764	24780	24768
16	24770	24768	24770	24769	24768	24768	24768	24767	24770	24767	24770	24767	24770	24767	24768
17	24770	24768	24770	24769	24770	24768	24767	24767	24771	24770	24767	24769	24764	24767	24768
18	24770	24770	24770	24769	24770	24768	24767	24768	24768	24770	24767	24767	24769	24778	24765
19	24769	24767	24770	24770	24768	24768	24768	24768	24768	24770	24768	24768	24768	24767	24767
20	24768	24768	24769	24768	24770	24768	24767	24768	24770	24770	24767	24767	24767	24768	24767
21	24765	24767	24769	24769	24770	24768	24768	24768	24771	24770	24767	24767	24770	24767	24767
22	24769	24768	24770	24767	24768	24768	24769	24768	24769	24769	24767	24767	24764	24767	24767
23	24769	24768	24769	24769	24768	24767	24767	24768	24768	24767	24767	24767	24769	24778	24767
25	24767	24768	24769	24769	24770	24768	24769	24768	24768	24770	24767	24767	24767	24769	24768
30	24769	24768	24782	24782	24770	24782	24769	24767	24768	24767	24767	24767	24764	24781	24767
40	24770	24768	24770	24769	24768	24768	24767	24767	24768	24767	24768	24767	24767	24768	24767

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	24769 bytes	–	100%
1,000	24768 bytes	-1 byte	100%
10,000	24766 bytes	-2 bytes	100%
100,000	24764 bytes	-2 bytes	3.19%
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)	24833 bytes	+69 bytes (+0.28%)	+53 bytes
1	24832 bytes	+68 bytes (+0.27%)	+52 bytes
2	24780 bytes	+16 bytes (+0.06%)	–
3	24819 bytes	+55 bytes (+0.22%)	+39 bytes
4	24850 bytes	+86 bytes (+0.35%)	+70 bytes
5	24876 bytes	+112 bytes (+0.45%)	+96 bytes
6	24886 bytes	+122 bytes (+0.49%)	+106 bytes
7	24887 bytes	+123 bytes (+0.50%)	+107 bytes
8	24916 bytes	+152 bytes (+0.61%)	+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	21142 bytes	-3622 bytes (-14.63%)
PPMd (Wikipedia)	7zip	7za a -mx=9 -m0=ppmd	21578 bytes	-3186 bytes (-12.87%)
RAR (proprietary)	RAR	rar a -m5 -md64m -mc63:128t -mt1	21643 bytes	-3121 bytes (-12.60%)
Brotli (Wikipedia)	brotli	brotli -q 11	22872 bytes	-1892 bytes (-7.64%)
Burrows-Wheeler transform (Wikipedia)	bzip2	bzip2 -9	23895 bytes	-869 bytes (-3.51%)
LZMA2 (Wikipedia)	xz	xz -9	24148 bytes	-616 bytes (-2.49%)
Zstandard (Wikipedia)	zstd	zstd -19	24629 bytes	-135 bytes (-0.55%)

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.