AngularJS 0.10.1 - as small as it gets (near-perfect GZIP compression)

Choose a version:

The original file has 396964 bytes (387.7k) and is available from the project website.
There you can find the official minified version, too, which brings down the size to 70504 bytes (68.9k, 18%).

After GZIP compression these minified files vary in size:

Boot	31719 bytes (31.0k)	CDN
Baidu	28488 bytes (27.8k)	CDN
cdnjs	28419 bytes (27.8k)	CDN
gzip -6 (default)	28225 bytes (27.6k)	local copy
gzip -9	28179 bytes (27.5k)	local copy
libdeflate -12	27499 bytes (26.9k)	local copy
7zip -mx=9 -tgzip	27273 bytes (26.6k)	local copy
zultra	27235 bytes (26.6k)	local copy
pigz -11 -n	27206 bytes (26.6k)	local copy
kzip -s0 -rn -b3	27172 bytes (26.5k)	local copy
Zopfli	27153 bytes (26.5k)	local copy
Zopfli (defluff)	27152 bytes (26.5k)	local copy

perma-link to the smallest file on my server:
http://minime.stephan-brumme.com/files/angularjs/angular-0.10.1.min.js (or via HTTPS)

You will automatically get the smallest AngularJS 0.10.1 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 1266 bytes by using my AngularJS 0.10.1 Zopfli version instead of the best available CDN (4.66% smaller than cdnjs, 27153 vs. 28419 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 --mls256 --bsr10 --lazy --ohh

(found November 26, 2015)

Description	Value	Parameter
iterations	100000	--i100000
maximum blocks	8	--mb8
maximum length score	256	--mls256
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

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 (27152 bytes).

Download

Verify file integrity

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

MD5:
curl --silent --compressed https://code.angularjs.org/0.10.1/angular-0.10.1.min.js --location | md5sum
dabf03bb8b109270bd211672c9253f3a -
curl --silent --compressed https://minime.stephan-brumme.com/files/angularjs/angular-0.10.1.min.zopfli.js.gz | md5sum
dabf03bb8b109270bd211672c9253f3a -

SHA1:
curl --silent --compressed https://code.angularjs.org/0.10.1/angular-0.10.1.min.js --location | sha1sum
051c799f8ddd961ddee87de6b396ff40e9163372 -
curl --silent --compressed https://minime.stephan-brumme.com/files/angularjs/angular-0.10.1.min.zopfli.js.gz | sha1sum
051c799f8ddd961ddee87de6b396ff40e9163372 -

These CDNs send you the original file:

CDN	Size (compressed)	MD5 (uncompressed)	Timestamp
Boot	31719 bytes	dabf03bb8b109270bd211672c9253f3a	March 18, 2015 @ 09:59
cdnjs	28419 bytes	dabf03bb8b109270bd211672c9253f3a	January 24, 2014 @ 03:45

And some CDNs send you a different file:

CDN	Size (compressed)	MD5 (uncompressed)	Comment / Diff	Timestamp
Baidu	28488 bytes	161e26d26a640834831ab4ef45025dad	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
27153 bytes	-1 byte	zopfli --i100000 --mls256 --bsr10 --lazy --ohh	November 26, 2015 @ 14:40
27154 bytes	-1 byte	zopfli --i100000 --mls256 --bsr11 --lazy --ohh	November 26, 2015 @ 13:31
27155 bytes	-1 byte	zopfli --i10000 --mls256 --bsr7 --lazy --ohh	October 14, 2015 @ 11:16
27156 bytes	-6 bytes	zopfli --i1000 --mls256 --bsr7 --lazy --ohh	September 17, 2015 @ 01:13
27162 bytes	-1 byte	zopfli --i10000 --mls4096 --bsr14 --lazy --ohh	September 11, 2015 @ 02:46
27163 bytes	-1 byte	zopfli --i10000 --mls2048 --bsr4 --lazy --ohh	September 11, 2015 @ 01:59
27164 bytes	-1 byte	zopfli --i10000 --mls512 --bsr6 --lazy --ohh	September 11, 2015 @ 01:25
27165 bytes	-3 bytes	zopfli --i1000 --mls512 --bsr6 --lazy --ohh	September 7, 2015 @ 22:56
27168 bytes	-2 bytes	zopfli --i1000 --mls512 --bsr10 --lazy --ohh	September 7, 2015 @ 22:56
27170 bytes	–	zopfli --i100 --mls1024 --bsr11 --lazy --ohh	September 7, 2015 @ 16:51

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 @ 12:52.

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	27190	27190	27186	27187	27188	27191	27192	27195	27192	27186	27182	27185	27178	27188	27185
4	27180	27180	27179	27191	27187	27175	27178	27176	27179	27184	27163	27166	27181	27176	27196
6	27163	27166	27165	27181	27165	27178	27176	27166	27164	27164	27165	27163	27164	27187	27184
7	27179	27165	27170	27178	27166	27168	27165	27155	27166	27167	27164	27165	27171	27180	27183
8	27169	27168	27170	27166	27172	27170	27169	27170	27169	27165	27173	27177	27165	27175	27171
9	27180	27181	27179	27190	27166	27182	27166	27154	27178	27192	27164	27164	27163	27177	27184
10	27163	27165	27162	27166	27165	27163	27164	27153	27167	27167	27165	27166	27166	27175	27182
11	27180	27165	27179	27165	27163	27163	27164	27154	27165	27163	27164	27165	27178	27178	27184
12	27181	27166	27165	27167	27166	27165	27179	27176	27178	27167	27164	27166	27164	27178	27164
13	27182	27193	27177	27183	27164	27181	27164	27165	27168	27163	27167	27165	27168	27175	27176
14	27163	27178	27177	27166	27166	27164	27170	27182	27181	27166	27165	27162	27178	27175	27177
15	27164	27178	27177	27177	27165	27169	27167	27165	27165	27167	27165	27166	27164	27175	27184
16	27180	27163	27179	27168	27167	27172	27166	27169	27165	27166	27166	27163	27168	27176	27184
17	27182	27181	27182	27182	27180	27186	27181	27175	27183	27163	27165	27166	27167	27175	27176
18	27168	27167	27171	27166	27165	27163	27164	27166	27181	27165	27163	27166	27165	27175	27183
19	27180	27166	27166	27166	27165	27171	27172	27163	27167	27163	27165	27164	27165	27176	27183
20	27181	27182	27184	27180	27167	27182	27165	27155	27183	27164	27163	27164	27164	27176	27179
21	27164	27164	27182	27184	27165	27180	27180	27166	27182	27164	27166	27165	27163	27180	27197
22	27164	27164	27165	27166	27167	27165	27165	27165	27165	27167	27162	27164	27166	27176	27185
23	27181	27179	27179	27184	27167	27166	27165	27181	27167	27164	27162	27163	27164	27174	27184
25	27163	27164	27163	27166	27167	27165	27166	27166	27168	27166	27163	27166	27163	27174	27184
30	27180	27179	27178	27179	27164	27180	27164	27155	27165	27163	27166	27165	27164	27179	27167
40	27164	27180	27179	27183	27165	27180	27164	27165	27165	27166	27165	27166	27165	27175	27164

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	27163 bytes	–	100%
1,000	27156 bytes	-7 bytes	100%
10,000	27155 bytes	-1 byte	100%
100,000	27153 bytes	-2 bytes	1.74%
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)	27236 bytes	+83 bytes (+0.31%)	+64 bytes
1	27676 bytes	+523 bytes (+1.93%)	+504 bytes
2	27238 bytes	+85 bytes (+0.31%)	+66 bytes
3	27172 bytes	+19 bytes (+0.07%)	–
4	27190 bytes	+37 bytes (+0.14%)	+18 bytes
5	27229 bytes	+76 bytes (+0.28%)	+57 bytes
6	27259 bytes	+106 bytes (+0.39%)	+87 bytes
7	27282 bytes	+129 bytes (+0.48%)	+110 bytes
8	27297 bytes	+144 bytes (+0.53%)	+125 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	23504 bytes	-3649 bytes (-13.44%)
RAR (proprietary)	RAR	rar a -m5 -md64m -mc63:128t -mt1	24086 bytes	-3067 bytes (-11.30%)
PPMd (Wikipedia)	7zip	7za a -mx=9 -m0=ppmd	24262 bytes	-2891 bytes (-10.65%)
Brotli (Wikipedia)	brotli	brotli -q 11	25157 bytes	-1996 bytes (-7.35%)
LZMA2 (Wikipedia)	xz	xz -9	26508 bytes	-645 bytes (-2.38%)
Burrows-Wheeler transform (Wikipedia)	bzip2	bzip2 -9	27099 bytes	-54 bytes (-0.20%)
Zstandard (Wikipedia)	zstd	zstd -19	27303 bytes	+150 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.