AngularJS 0.10.4 - as small as it gets (near-perfect GZIP compression)

Choose a version:

The original file has 410037 bytes (400.4k) and is available from the project website.
There you can find the official minified version, too, which brings down the size to 67719 bytes (66.1k, 17%).

After GZIP compression these minified files vary in size:

Boot	29374 bytes (28.7k)	CDN
Baidu	26224 bytes (25.6k)	CDN
cdnjs	26151 bytes (25.5k)	CDN
gzip -6 (default)	25967 bytes (25.4k)	local copy
gzip -9	25922 bytes (25.3k)	local copy
7zip -mx=9 -tgzip	25104 bytes (24.5k)	local copy
libdeflate -12	25058 bytes (24.5k)	local copy
pigz -11 -n	25039 bytes (24.5k)	local copy
zultra	25038 bytes (24.5k)	local copy
kzip -s0 -rn -b2	25033 bytes (24.4k)	local copy
Zopfli	25026 bytes (24.4k)	local copy

perma-link to the smallest file on my server:
http://minime.stephan-brumme.com/files/angularjs/angular-0.10.4.min.js (or via HTTPS)

You will automatically get the smallest AngularJS 0.10.4 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 1125 bytes by using my AngularJS 0.10.4 Zopfli version instead of the best available CDN (4.50% smaller than cdnjs, 25026 vs. 26151 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 --mls64 --bsr22 --lazy --ohh

(found February 8, 2016)

Description	Value	Parameter
iterations	100000	--i100000
maximum blocks	8	--mb8
maximum length score	64	--mls64
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/0.10.4/angular-0.10.4.min.js --location | md5sum
b555b18c4b0cd2e90bb0ad571a614bcf -
curl --silent --compressed https://minime.stephan-brumme.com/files/angularjs/angular-0.10.4.min.zopfli.js.gz | md5sum
b555b18c4b0cd2e90bb0ad571a614bcf -

SHA1:
curl --silent --compressed https://code.angularjs.org/0.10.4/angular-0.10.4.min.js --location | sha1sum
ba9f3616310a893a66684bba87a0c70c75ebf924 -
curl --silent --compressed https://minime.stephan-brumme.com/files/angularjs/angular-0.10.4.min.zopfli.js.gz | sha1sum
ba9f3616310a893a66684bba87a0c70c75ebf924 -

These CDNs send you the original file:

CDN	Size (compressed)	MD5 (uncompressed)	Timestamp
Boot	29374 bytes	b555b18c4b0cd2e90bb0ad571a614bcf	March 18, 2015 @ 10:00
cdnjs	26151 bytes	b555b18c4b0cd2e90bb0ad571a614bcf	January 24, 2014 @ 03:45

And some CDNs send you a different file:

CDN	Size (compressed)	MD5 (uncompressed)	Comment / Diff	Timestamp
Baidu	26224 bytes	e721c2714b2fdaa4e3eb7086ca986501	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
25026 bytes	-1 byte	zopfli --i100000 --mls64 --bsr22 --lazy --ohh	February 8, 2016 @ 20:33
25027 bytes	-1 byte	zopfli --i100000 --mls4096 --bsr8 --lazy --ohh	November 26, 2015 @ 13:20
25028 bytes	-1 byte	zopfli --i10000 --mls4096 --bsr8 --lazy --ohh	September 11, 2015 @ 00:06
25029 bytes	-1 byte	zopfli --i10000 --mls1024 --bsr16 --lazy --ohh	September 10, 2015 @ 10:57
25030 bytes	-1 byte	zopfli --i1000 --mls2048 --bsr10 --lazy --ohh	September 7, 2015 @ 22:50
25031 bytes	-1 byte	zopfli --i1000 --mls2048 --bsr4 --lazy --ohh	September 7, 2015 @ 22:47
25032 bytes	-1 byte	zopfli --i1000 --mls512 --bsr12 --lazy --ohh	September 7, 2015 @ 22:46
25033 bytes	–	zopfli --i100 --mls8192 --bsr9 --lazy --ohh	September 7, 2015 @ 16:07

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 @ 12:55.

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	25034	25033	25033	25037	25035	25036	25035	25031	25030	25038	25039	25039	25047	25031	25048
4	25046	25045	25046	25030	25045	25046	25030	25030	25030	25031	25029	25029	25030	25039	25029
6	25031	25030	25030	25030	25030	25029	25030	25031	25036	25030	25035	25034	25034	25041	25029
7	25030	25030	25031	25030	25029	25030	25029	25029	25031	25029	25029	25029	25029	25046	25027
8	25031	25031	25030	25030	25030	25030	25032	25033	25031	25031	25029	25027	25029	25039	25027
9	25030	25030	25030	25030	25030	25027	25034	25029	25033	25030	25032	25031	25029	25036	25034
10	25031	25030	25030	25030	25030	25031	25027	25029	25030	25030	25029	25029	25029	25038	25027
11	25030	25030	25030	25030	25030	25029	25027	25029	25030	25030	25029	25029	25029	25040	25027
12	25030	25030	25029	25032	25030	25026	25029	25030	25031	25030	25029	25029	25030	25039	25029
13	25030	25031	25030	25030	25030	25027	25029	25029	25031	25030	25029	25029	25029	25039	25027
14	25031	25030	25030	25030	25029	25027	25029	25029	25031	25030	25029	25029	25029	25038	25027
15	25031	25031	25030	25030	25030	25029	25030	25030	25030	25030	25029	25029	25029	25041	25027
16	25031	25030	25031	25030	25030	25027	25031	25029	25031	25029	25029	25029	25030	25031	25029
17	25030	25030	25030	25030	25030	25030	25032	25029	25030	25030	25029	25029	25030	25038	25027
18	25031	25030	25030	25031	25030	25027	25032	25029	25030	25030	25029	25029	25029	25039	25027
19	25030	25030	25031	25031	25030	25030	25027	25029	25030	25029	25029	25029	25030	25039	25027
20	25045	25043	25030	25031	25030	25027	25032	25034	25031	25030	25029	25029	25030	25041	25029
21	25031	25030	25030	25031	25030	25029	25029	25030	25033	25030	25029	25029	25030	25041	25029
22	25031	25030	25030	25031	25030	25026	25030	25029	25030	25029	25029	25029	25029	25030	25027
23	25045	25031	25030	25031	25043	25029	25029	25030	25031	25029	25027	25030	25031	25037	25027
25	25030	25030	25030	25030	25030	25027	25029	25030	25033	25030	25029	25030	25029	25039	25027
30	25045	25030	25030	25030	25030	25027	25029	25030	25033	25030	25029	25029	25030	25039	25027
40	25031	25030	25030	25030	25030	25027	25032	25029	25030	25030	25029	25029	25031	25039	25030

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	25033 bytes	–	100%
1,000	25030 bytes	-3 bytes	100%
10,000	25028 bytes	-2 bytes	100%
100,000	25026 bytes	-2 bytes	8.70%
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)	25087 bytes	+61 bytes (+0.24%)	+54 bytes
1	25085 bytes	+59 bytes (+0.24%)	+52 bytes
2	25033 bytes	+7 bytes (+0.03%)	–
3	25071 bytes	+45 bytes (+0.18%)	+38 bytes
4	25102 bytes	+76 bytes (+0.30%)	+69 bytes
5	25131 bytes	+105 bytes (+0.42%)	+98 bytes
6	25139 bytes	+113 bytes (+0.45%)	+106 bytes
7	25154 bytes	+128 bytes (+0.51%)	+121 bytes
8	25183 bytes	+157 bytes (+0.63%)	+150 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	21331 bytes	-3695 bytes (-14.76%)
PPMd (Wikipedia)	7zip	7za a -mx=9 -m0=ppmd	21796 bytes	-3230 bytes (-12.91%)
RAR (proprietary)	RAR	rar a -m5 -md64m -mc63:128t -mt1	21904 bytes	-3122 bytes (-12.48%)
Brotli (Wikipedia)	brotli	brotli -q 11	23102 bytes	-1924 bytes (-7.69%)
Burrows-Wheeler transform (Wikipedia)	bzip2	bzip2 -9	24135 bytes	-891 bytes (-3.56%)
LZMA2 (Wikipedia)	xz	xz -9	24364 bytes	-662 bytes (-2.65%)
Zstandard (Wikipedia)	zstd	zstd -19	24864 bytes	-162 bytes (-0.65%)

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.