AngularJS 1.0.0 - as small as it gets (near-perfect GZIP compression)

Choose a version:

The original file has 473115 bytes (462.0k) and is available from the project website.
There you can find the official minified version, too, which brings down the size to 77778 bytes (76.0k, 16%).

After GZIP compression these minified files vary in size:

Boot	33031 bytes (32.3k)	CDN
Baidu	29339 bytes (28.7k)	CDN
cdnjs	29252 bytes (28.6k)	CDN
gzip -6 (default)	29123 bytes (28.4k)	local copy
gzip -9	29065 bytes (28.4k)	local copy
7zip -mx=9 -tgzip	28201 bytes (27.5k)	local copy
libdeflate -12	28196 bytes (27.5k)	local copy
kzip -s0 -rn -b2	28162 bytes (27.5k)	local copy
zultra	28156 bytes (27.5k)	local copy
pigz -11 -n	28130 bytes (27.5k)	local copy
Zopfli	28115 bytes (27.5k)	local copy
Zopfli (defluff)	28114 bytes (27.5k)	local copy

perma-link to the smallest file on my server:
http://minime.stephan-brumme.com/files/angularjs/angular-1.0.0.min.js (or via HTTPS)

You will automatically get the smallest AngularJS 1.0.0 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 1137 bytes by using my AngularJS 1.0.0 Zopfli version instead of the best available CDN (4.04% smaller than cdnjs, 28115 vs. 29252 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 --mls2 --bsr22 --lazy --ohh

(found November 26, 2015)

Description	Value	Parameter
iterations	100000	--i100000
maximum blocks	8	--mb8
maximum length score	2	--mls2
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

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 (28114 bytes).

Download

Verify file integrity

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

MD5:
curl --silent --compressed https://code.angularjs.org/1.0.0/angular-1.0.0.min.js --location | md5sum
cbf74350786dd82713d5327640a21f86 -
curl --silent --compressed https://minime.stephan-brumme.com/files/angularjs/angular-1.0.0.min.zopfli.js.gz | md5sum
cbf74350786dd82713d5327640a21f86 -

SHA1:
curl --silent --compressed https://code.angularjs.org/1.0.0/angular-1.0.0.min.js --location | sha1sum
0ada5bf28a0bfb45f62a87433728a5951331df40 -
curl --silent --compressed https://minime.stephan-brumme.com/files/angularjs/angular-1.0.0.min.zopfli.js.gz | sha1sum
0ada5bf28a0bfb45f62a87433728a5951331df40 -

These CDNs send you the original file:

CDN	Size (compressed)	MD5 (uncompressed)	Timestamp
Boot	33031 bytes	cbf74350786dd82713d5327640a21f86	March 18, 2015 @ 10:07
cdnjs	29252 bytes	cbf74350786dd82713d5327640a21f86	(invalid)

And some CDNs send you a different file:

CDN	Size (compressed)	MD5 (uncompressed)	Comment / Diff	Timestamp
Baidu	29339 bytes	c47a2b326d07bc64eafb520806f432a3	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
28115 bytes	-2 bytes	zopfli --i100000 --mls2 --bsr22 --lazy --ohh	November 26, 2015 @ 14:52
28117 bytes	-2 bytes	zopfli --i10000 --mls2 --bsr22 --lazy --ohh	October 21, 2015 @ 16:21
28119 bytes	-1 byte	zopfli --i10000 --mls512 --bsr10 --lazy --ohh	September 10, 2015 @ 09:39
28120 bytes	-2 bytes	zopfli --i10000 --mls512 --bsr2 --lazy --ohh	September 10, 2015 @ 09:34
28122 bytes	-1 byte	zopfli --i1000 --mls512 --bsr16 --lazy --ohh	September 7, 2015 @ 21:26
28123 bytes	-3 bytes	zopfli --i1000 --mls512 --bsr2 --lazy --ohh	September 7, 2015 @ 21:24
28126 bytes	–	zopfli --i100 --mls512 --bsr11 --lazy --ohh	September 7, 2015 @ 16:28

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 @ 12:53.

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	28126	28127	28123	28126	28124	28126	28122	28127	28120	28126	28129	28122	28134	28123	28127
4	28123	28123	28123	28126	28121	28119	28129	28129	28128	28127	28132	28131	28131	28137	28133
6	28120	28129	28129	28130	28128	28123	28130	28122	28132	28132	28132	28135	28131	28133	28133
7	28119	28122	28120	28121	28131	28119	28124	28120	28119	28121	28127	28134	28132	28129	28132
8	28126	28127	28124	28127	28122	28122	28129	28123	28120	28128	28128	28128	28135	28123	28127
9	28129	28122	28125	28134	28115	28130	28129	28129	28127	28123	28128	28131	28130	28126	28132
10	28120	28126	28127	28135	28126	28126	28126	28122	28119	28122	28132	28131	28130	28136	28132
11	28116	28123	28124	28126	28123	28123	28124	28120	28120	28122	28127	28120	28130	28132	28124
12	28122	28123	28122	28122	28120	28119	28129	28130	28121	28128	28127	28134	28131	28125	28134
13	28119	28124	28125	28122	28120	28119	28130	28126	28132	28123	28126	28123	28133	28126	28135
14	28115	28121	28123	28122	28121	28120	28130	28123	28120	28125	28126	28127	28130	28132	28133
15	28122	28127	28121	28125	28128	28122	28122	28122	28115	28122	28130	28127	28131	28133	28128
16	28120	28123	28124	28128	28122	28119	28119	28122	28120	28121	28127	28128	28133	28128	28133
17	28124	28125	28123	28134	28121	28121	28130	28122	28120	28122	28130	28128	28133	28123	28133
18	28120	28126	28119	28127	28128	28122	28130	28130	28128	28126	28120	28134	28130	28133	28126
19	28121	28126	28124	28134	28133	28120	28129	28123	28131	28121	28120	28123	28131	28128	28133
20	28120	28127	28124	28126	28121	28121	28121	28122	28120	28126	28130	28127	28131	28133	28125
21	28119	28126	28122	28127	28123	28119	28129	28122	28119	28122	28130	28133	28134	28128	28134
22	28115	28124	28124	28125	28119	28121	28120	28128	28120	28124	28132	28133	28132	28133	28133
23	28121	28122	28123	28132	28121	28120	28129	28120	28120	28121	28121	28123	28130	28133	28133
25	28122	28121	28125	28131	28120	28120	28128	28132	28131	28128	28128	28134	28132	28126	28133
30	28122	28120	28119	28136	28121	28127	28128	28133	28119	28122	28127	28119	28133	28132	28124
40	28123	28122	28120	28120	28121	28120	28124	28122	28131	28131	28128	28133	28133	28127	28130

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	28126 bytes	–	100%
1,000	28119 bytes	-7 bytes	100%
10,000	28117 bytes	-2 bytes	100%
100,000	28115 bytes	-2 bytes	1.45%
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)	28171 bytes	+56 bytes (+0.20%)	+9 bytes
1	28171 bytes	+56 bytes (+0.20%)	+9 bytes
2	28162 bytes	+47 bytes (+0.17%)	–
3	28194 bytes	+79 bytes (+0.28%)	+32 bytes
4	28217 bytes	+102 bytes (+0.36%)	+55 bytes
5	28221 bytes	+106 bytes (+0.38%)	+59 bytes
6	28220 bytes	+105 bytes (+0.37%)	+58 bytes
7	28254 bytes	+139 bytes (+0.49%)	+92 bytes
8	28298 bytes	+183 bytes (+0.65%)	+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	23509 bytes	-4606 bytes (-16.38%)
RAR (proprietary)	RAR	rar a -m5 -md64m -mc63:128t -mt1	24088 bytes	-4027 bytes (-14.32%)
PPMd (Wikipedia)	7zip	7za a -mx=9 -m0=ppmd	24922 bytes	-3193 bytes (-11.36%)
Brotli (Wikipedia)	brotli	brotli -q 11	25893 bytes	-2222 bytes (-7.90%)
Burrows-Wheeler transform (Wikipedia)	bzip2	bzip2 -9	26899 bytes	-1216 bytes (-4.33%)
LZMA2 (Wikipedia)	xz	xz -9	27128 bytes	-987 bytes (-3.51%)
Zstandard (Wikipedia)	zstd	zstd -19	27758 bytes	-357 bytes (-1.27%)

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.