AngularJS 0.10.6 - as small as it gets (near-perfect GZIP compression)

Choose a version:

The original file has 455457 bytes (444.8k) and is available from the project website.
There you can find the official minified version, too, which brings down the size to 74921 bytes (73.2k, 16%).

After GZIP compression these minified files vary in size:

Boot	32211 bytes (31.5k)	CDN
Baidu	28607 bytes (27.9k)	CDN
cdnjs	28529 bytes (27.9k)	CDN
gzip -6 (default)	28384 bytes (27.7k)	local copy
gzip -9	28322 bytes (27.7k)	local copy
libdeflate -12	27468 bytes (26.8k)	local copy
7zip -mx=9 -tgzip	27460 bytes (26.8k)	local copy
kzip -s0 -rn -b1	27421 bytes (26.8k)	local copy
zultra	27406 bytes (26.8k)	local copy
pigz -11 -n	27387 bytes (26.7k)	local copy
Zopfli	27375 bytes (26.7k)	local copy

perma-link to the smallest file on my server:
http://minime.stephan-brumme.com/files/angularjs/angular-0.10.6.min.js (or via HTTPS)

You will automatically get the smallest AngularJS 0.10.6 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 1154 bytes by using my AngularJS 0.10.6 Zopfli version instead of the best available CDN (4.22% smaller than cdnjs, 27375 vs. 28529 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 --mls512 --bsr9 --lazy --ohh

(found November 26, 2015)

Description	Value	Parameter
iterations	100000	--i100000
maximum blocks	8	--mb8
maximum length score	512	--mls512
block splitting recursion	9	--bsr9
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/0.10.6/angular-0.10.6.min.js --location | md5sum
fa24c1445f1b9adbeb5049167b23f8f6 -
curl --silent --compressed https://minime.stephan-brumme.com/files/angularjs/angular-0.10.6.min.zopfli.js.gz | md5sum
fa24c1445f1b9adbeb5049167b23f8f6 -

SHA1:
curl --silent --compressed https://code.angularjs.org/0.10.6/angular-0.10.6.min.js --location | sha1sum
a93648760b2d3dd4ed672232b2d657cdcbd6a336 -
curl --silent --compressed https://minime.stephan-brumme.com/files/angularjs/angular-0.10.6.min.zopfli.js.gz | sha1sum
a93648760b2d3dd4ed672232b2d657cdcbd6a336 -

These CDNs send you the original file:

CDN	Size (compressed)	MD5 (uncompressed)	Timestamp
Boot	32211 bytes	fa24c1445f1b9adbeb5049167b23f8f6	March 18, 2015 @ 10:01
cdnjs	28529 bytes	fa24c1445f1b9adbeb5049167b23f8f6	January 24, 2014 @ 03:45

And some CDNs send you a different file:

CDN	Size (compressed)	MD5 (uncompressed)	Comment / Diff	Timestamp
Baidu	28607 bytes	8b3ded08444084fab06a34c8676c532e	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
27375 bytes	-1 byte	zopfli --i100000 --mls512 --bsr9 --lazy --ohh	November 26, 2015 @ 14:27
27376 bytes	-2 bytes	zopfli --i10000 --mls512 --bsr9 --lazy --ohh	September 10, 2015 @ 10:08
27378 bytes	-3 bytes	zopfli --i1000 --mls512 --bsr9 --lazy --ohh	September 7, 2015 @ 22:39
27381 bytes	–	zopfli --i100 --mls512 --bsr9 --lazy --ohh	September 7, 2015 @ 16:16

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 @ 12:49.

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	27386	27387	27387	27387	27388	27387	27387	27387	27389	27391	27392	27392	27390	27388	27387
4	27378	27379	27378	27378	27377	27386	27384	27383	27383	27383	27383	27382	27385	27388	27386
6	27385	27384	27377	27377	27385	27378	27384	27383	27383	27384	27383	27385	27388	27389	27387
7	27384	27381	27383	27383	27384	27384	27384	27383	27375	27383	27382	27377	27384	27390	27389
8	27383	27383	27383	27383	27377	27383	27384	27384	27383	27383	27381	27381	27384	27384	27384
9	27377	27378	27375	27377	27377	27383	27385	27375	27375	27383	27384	27383	27384	27388	27386
10	27378	27378	27375	27377	27378	27377	27377	27375	27383	27384	27379	27384	27388	27390	27384
11	27382	27377	27377	27377	27377	27377	27377	27378	27375	27383	27383	27383	27383	27388	27384
12	27385	27379	27384	27384	27384	27383	27384	27384	27383	27383	27383	27383	27387	27388	27390
13	27383	27375	27377	27375	27377	27377	27383	27375	27383	27384	27381	27383	27389	27387	27384
14	27383	27377	27384	27375	27377	27384	27383	27377	27383	27384	27383	27379	27384	27388	27390
15	27384	27378	27377	27377	27384	27384	27383	27377	27383	27384	27375	27379	27387	27388	27390
16	27383	27377	27383	27377	27377	27378	27377	27375	27388	27383	27383	27384	27387	27387	27389
17	27382	27378	27383	27377	27375	27377	27383	27384	27375	27376	27382	27384	27383	27388	27388
18	27380	27378	27383	27377	27377	27383	27377	27377	27375	27382	27383	27383	27383	27387	27387
19	27375	27377	27383	27375	27384	27383	27383	27375	27377	27375	27384	27381	27385	27388	27387
20	27384	27375	27383	27377	27384	27384	27383	27377	27377	27383	27382	27382	27387	27389	27384
21	27375	27383	27383	27377	27384	27375	27384	27384	27377	27375	27384	27383	27386	27387	27387
22	27375	27377	27384	27377	27377	27384	27384	27377	27375	27383	27381	27385	27384	27390	27389
23	27383	27377	27383	27377	27377	27375	27377	27377	27376	27384	27382	27384	27387	27388	27383
25	27384	27378	27383	27384	27384	27383	27384	27383	27383	27376	27382	27383	27387	27387	27389
30	27384	27377	27383	27377	27377	27375	27377	27377	27377	27384	27383	27384	27377	27388	27384
40	27384	27377	27383	27383	27384	27375	27383	27384	27375	27375	27382	27384	27384	27388	27389

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	27380 bytes	–	100%
1,000	27377 bytes	-3 bytes	100%
10,000	27376 bytes	-1 byte	100%
100,000	27375 bytes	-1 byte	9.86%
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)	27421 bytes	+46 bytes (+0.17%)	–
1	27421 bytes	+46 bytes (+0.17%)	–
2	27433 bytes	+58 bytes (+0.21%)	+12 bytes
3	27453 bytes	+78 bytes (+0.28%)	+32 bytes
4	27483 bytes	+108 bytes (+0.39%)	+62 bytes
5	27479 bytes	+104 bytes (+0.38%)	+58 bytes
6	27522 bytes	+147 bytes (+0.54%)	+101 bytes
7	27560 bytes	+185 bytes (+0.68%)	+139 bytes
8	27576 bytes	+201 bytes (+0.73%)	+155 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 - but your browser doesn't support it.

Algorithm	Program	Parameters	Size	Compared To Best Zopfli
ZPAQ (Wikipedia)	zpaq	zpaq -method 69	23039 bytes	-4336 bytes (-15.84%)
RAR (proprietary)	RAR	rar a -m5 -md64m -mc63:128t -mt1	23518 bytes	-3857 bytes (-14.09%)
PPMd (Wikipedia)	7zip	7za a -mx=9 -m0=ppmd	24310 bytes	-3065 bytes (-11.20%)
Brotli (Wikipedia)	brotli	brotli -q 11	25267 bytes	-2108 bytes (-7.70%)
Burrows-Wheeler transform (Wikipedia)	bzip2	bzip2 -9	26150 bytes	-1225 bytes (-4.47%)
LZMA2 (Wikipedia)	xz	xz -9	26468 bytes	-907 bytes (-3.31%)
Zstandard (Wikipedia)	zstd	zstd -19	27084 bytes	-291 bytes (-1.06%)

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 2024.
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.