AngularJS 1.7.5 - as small as it gets (near-perfect GZIP compression)

Choose a version:

The original file has 1364603 bytes (1,332.6k) and is available from the project website.
There you can find the official minified version, too, which brings down the size to 174778 bytes (170.7k, 13%).

After GZIP compression these minified files vary in size:

Boot	61618 bytes (60.2k)	CDN
cdnjs	61618 bytes (60.2k)	CDN
Google	61468 bytes (60.0k)	CDN
gzip -6 (default)	61140 bytes (59.7k)	local copy
unpkg	61126 bytes (59.7k)	CDN
gzip -9	60996 bytes (59.6k)	local copy
libdeflate -12	59173 bytes (57.8k)	local copy
kzip -s0 -rn -b2	59160 bytes (57.8k)	local copy
7zip -mx=9 -tgzip	59144 bytes (57.8k)	local copy
zultra	59095 bytes (57.7k)	local copy
pigz -11 -n	59074 bytes (57.7k)	local copy
Zopfli	59005 bytes (57.6k)	local copy
Zopfli (defluff)	59003 bytes (57.6k)	local copy

perma-link to the smallest file on my server:
http://minime.stephan-brumme.com/files/angularjs/angular-1.7.5.min.js (or via HTTPS)

You will automatically get the smallest AngularJS 1.7.5 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 2121 bytes by using my AngularJS 1.7.5 Zopfli version instead of the best available CDN (3.59% smaller than unpkg, 59005 vs. 61126 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 --i1000000 --mb8 --mls2048 --bsr10 --lazy --ohh

(found October 6, 2018)

Description	Value	Parameter
iterations	1000000	--i1000000
maximum blocks	8	--mb8
maximum length score	2048	--mls2048
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 2 more bytes (59003 bytes).

Download

Verify file integrity

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

MD5:
curl --silent --compressed https://code.angularjs.org/1.7.5/angular.min.js --location | md5sum
45234cafb7d03b5423e8238a3ce59137 -
curl --silent --compressed https://minime.stephan-brumme.com/files/angularjs/angular-1.7.5.min.zopfli.js.gz | md5sum
45234cafb7d03b5423e8238a3ce59137 -

SHA1:
curl --silent --compressed https://code.angularjs.org/1.7.5/angular.min.js --location | sha1sum
147405c7f2a79689d98be4cc151ef63a25a8990e -
curl --silent --compressed https://minime.stephan-brumme.com/files/angularjs/angular-1.7.5.min.zopfli.js.gz | sha1sum
147405c7f2a79689d98be4cc151ef63a25a8990e -

All listed CDNs deliver identical contents:

CDN	Size (compressed)	MD5 (uncompressed)	Timestamp
Boot	61618 bytes	45234cafb7d03b5423e8238a3ce59137	October 24, 2018 @ 17:52
cdnjs	61618 bytes	45234cafb7d03b5423e8238a3ce59137	October 24, 2018 @ 17:52
Google	61468 bytes	45234cafb7d03b5423e8238a3ce59137	October 5, 2018 @ 20:15
unpkg	61126 bytes	45234cafb7d03b5423e8238a3ce59137	(invalid)

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
59005 bytes	-2 bytes	zopfli --i1000000 --mls2048 --bsr10 --lazy --ohh	October 6, 2018 @ 02:57
59007 bytes	-1 byte	zopfli --i100000 --mls2048 --bsr10 --lazy --ohh	October 5, 2018 @ 17:20
59008 bytes	-1 byte	zopfli --i10000 --mls2048 --bsr10 --lazy --ohh	October 5, 2018 @ 15:38
59009 bytes	-1 byte	zopfli --i10000 --mls512 --bsr12 --lazy --ohh	October 5, 2018 @ 15:18
59010 bytes	-1 byte	zopfli --i10000 --mls512 --bsr18 --lazy --ohh	October 5, 2018 @ 15:12
59011 bytes	-1 byte	zopfli --i10000 --mls512 --bsr20 --lazy --ohh	October 5, 2018 @ 15:00
59012 bytes	-1 byte	zopfli --i1000 --mls512 --bsr20 --lazy --ohh	October 5, 2018 @ 14:50
59013 bytes	-6 bytes	zopfli --i1000 --mls512 --bsr18 --lazy --ohh	October 5, 2018 @ 14:50
59019 bytes	–	zopfli --i100 --mls512 --bsr20 --lazy --ohh	October 5, 2018 @ 14:45

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, 100,000 or 1,000,000.

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	59066	59065	59073	59075	59073	59044	59047	59038	59039	59036	59153	59047	59040	59033	59077
4	59058	59053	59052	59051	59046	59049	59050	59038	59027	59030	59033	59034	59036	59047	59046
6	59059	59049	59059	59059	59041	59053	59052	59038	59042	59024	59039	59048	59035	59037	59051
7	59051	59057	59050	59052	59045	59040	59036	59033	59045	59021	59048	59035	59047	59046	59055
8	59051	59037	59056	59047	59036	59051	59047	59036	59028	59028	59027	59039	59031	59030	59052
9	59056	59058	59058	59046	59057	59053	59052	59036	59021	59024	59035	59034	59036	59037	59046
10	59036	59038	59051	59038	59042	59042	59012	59010	59024	59012	59005	59036	59035	59026	59047
11	59040	59039	59057	59039	59036	59046	59027	59012	59027	59015	59014	59034	59024	59026	59055
12	59056	59052	59057	59044	59037	59013	59027	59026	59008	59013	59012	59035	59024	59036	59046
13	59040	59040	59036	59038	59031	59045	59019	59014	59011	59016	59021	59035	59028	59036	59048
14	59037	59038	59056	59040	59039	59050	59030	59015	59012	59016	59013	59034	59036	59027	59046
15	59039	59027	59046	59037	59038	59037	59035	59025	59012	59011	59016	59034	59034	59027	59047
16	59039	59039	59038	59041	59037	59052	59036	59011	59027	59033	59021	59036	59039	59032	59047
17	59037	59024	59056	59037	59037	59042	59022	59028	59016	59023	59011	59033	59037	59038	59056
18	59040	59038	59048	59037	59038	59022	59026	59027	59010	59015	59019	59034	59011	59035	59046
19	59056	59037	59057	59036	59048	59026	59026	59028	59027	59016	59018	59033	59028	59035	59051
20	59040	59054	59055	59057	59043	59043	59021	59039	59011	59025	59011	59035	59025	59035	59046
21	59040	59040	59050	59042	59037	59043	59032	59028	59012	59011	59025	59047	59024	59035	59046
22	59038	59027	59048	59040	59049	59053	59019	59013	59026	59026	59010	59034	59035	59037	59047
23	59039	59042	59055	59041	59039	59020	59025	59029	59012	59013	59013	59035	59023	59038	59057
25	59040	59042	59042	59040	59024	59040	59025	59030	59017	59016	59026	59048	59018	59035	59047
30	59039	59041	59042	59043	59026	59045	59031	59016	59027	59018	59027	59035	59032	59027	59042
40	59057	59041	59045	59041	59041	59033	59032	59038	59013	59014	59021	59021	59037	59040	59046

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	59019 bytes	–	100%
1,000	59012 bytes	-7 bytes	100%
10,000	59008 bytes	-4 bytes	100%
100,000	59007 bytes	-1 byte	0.58%
1,000,000	59005 bytes	-2 bytes	0.29%
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)	59162 bytes	+157 bytes (+0.27%)	+2 bytes
1	59168 bytes	+163 bytes (+0.28%)	+8 bytes
2	59160 bytes	+155 bytes (+0.26%)	–
3	59179 bytes	+174 bytes (+0.29%)	+19 bytes
4	59178 bytes	+173 bytes (+0.29%)	+18 bytes
5	59180 bytes	+175 bytes (+0.30%)	+20 bytes
6	59170 bytes	+165 bytes (+0.28%)	+10 bytes
7	59201 bytes	+196 bytes (+0.33%)	+41 bytes
8	59216 bytes	+211 bytes (+0.36%)	+56 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	45545 bytes	-13460 bytes (-22.81%)
RAR (proprietary)	RAR	rar a -m5 -md64m -mc63:128t -mt1	48054 bytes	-10951 bytes (-18.56%)
PPMd (Wikipedia)	7zip	7za a -mx=9 -m0=ppmd	49879 bytes	-9126 bytes (-15.47%)
Brotli (Wikipedia)	brotli	brotli -q 11	53585 bytes	-5420 bytes (-9.19%)
Burrows-Wheeler transform (Wikipedia)	bzip2	bzip2 -9	54161 bytes	-4844 bytes (-8.21%)
LZMA2 (Wikipedia)	xz	xz -9	55128 bytes	-3877 bytes (-6.57%)
Zstandard (Wikipedia)	zstd	zstd -19	56558 bytes	-2447 bytes (-4.15%)

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.