AngularJS 1.7.9 - as small as it gets (near-perfect GZIP compression)

Choose a version:

The original file has 1372161 bytes (1,340.0k) and is available from the project website.
There you can find the official minified version, too, which brings down the size to 176236 bytes (172.1k, 13%).

After GZIP compression these minified files vary in size:

unpkg	71984 bytes (70.3k)	CDN
Boot	62128 bytes (60.7k)	CDN
cdnjs	62128 bytes (60.7k)	CDN
Google	61983 bytes (60.5k)	CDN
gzip -6 (default)	61652 bytes (60.2k)	local copy
gzip -9	61500 bytes (60.1k)	local copy
libdeflate -12	59673 bytes (58.3k)	local copy
7zip -mx=9 -tgzip	59639 bytes (58.2k)	local copy
kzip -s0 -rn -b8	59607 bytes (58.2k)	local copy
zultra	59592 bytes (58.2k)	local copy
pigz -11 -n	59542 bytes (58.1k)	local copy
Zopfli	59483 bytes (58.1k)	local copy
Zopfli (defluff)	59482 bytes (58.1k)	local copy

perma-link to the smallest file on my server:
http://minime.stephan-brumme.com/files/angularjs/angular-1.7.9.min.js (or via HTTPS)

You will automatically get the smallest AngularJS 1.7.9 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 2500 bytes by using my AngularJS 1.7.9 Zopfli version instead of the best available CDN (4.20% smaller than Google, 59483 vs. 61983 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 --mls512 --bsr18 --lazy --ohh

(found November 27, 2019)

Description	Value	Parameter
iterations	1000000	--i1000000
maximum blocks	8	--mb8
maximum length score	512	--mls512
block splitting recursion	18	--bsr18
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 (59482 bytes).

Download

Verify file integrity

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

MD5:
curl --silent --compressed https://code.angularjs.org/1.7.9/angular.min.js --location | md5sum
613274fe74404112d98709adf0a28b69 -
curl --silent --compressed https://minime.stephan-brumme.com/files/angularjs/angular-1.7.9.min.zopfli.js.gz | md5sum
613274fe74404112d98709adf0a28b69 -

SHA1:
curl --silent --compressed https://code.angularjs.org/1.7.9/angular.min.js --location | sha1sum
73b623b7d29122a34e73a061491f708b3b7f9f83 -
curl --silent --compressed https://minime.stephan-brumme.com/files/angularjs/angular-1.7.9.min.zopfli.js.gz | sha1sum
73b623b7d29122a34e73a061491f708b3b7f9f83 -

All listed CDNs deliver identical contents:

CDN	Size (compressed)	MD5 (uncompressed)	Timestamp
unpkg	71984 bytes	613274fe74404112d98709adf0a28b69	(invalid)
Boot	62128 bytes	613274fe74404112d98709adf0a28b69	March 18, 2020 @ 15:31
cdnjs	62128 bytes	613274fe74404112d98709adf0a28b69	March 18, 2020 @ 15:31
Google	61983 bytes	613274fe74404112d98709adf0a28b69	November 27, 2019 @ 20:15

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
59483 bytes	-2 bytes	zopfli --i1000000 --mls512 --bsr18 --lazy --ohh	November 27, 2019 @ 15:02
59485 bytes	-1 byte	zopfli --i100000 --mls512 --bsr18 --lazy --ohh	November 26, 2019 @ 21:47
59486 bytes	-1 byte	zopfli --i100000 --mls512 --bsr10 --lazy --ohh	November 26, 2019 @ 20:50
59487 bytes	-4 bytes	zopfli --i100000 --mls512 --bsr15 --lazy --ohh	November 26, 2019 @ 19:52
59491 bytes	-1 byte	zopfli --i10000 --mls512 --bsr15 --lazy --ohh	November 26, 2019 @ 18:45
59492 bytes	-4 bytes	zopfli --i10000 --mls512 --bsr12 --lazy --ohh	November 26, 2019 @ 18:40
59496 bytes	-2 bytes	zopfli --i1000 --mls512 --bsr12 --lazy --ohh	November 26, 2019 @ 18:31
59498 bytes	-2 bytes	zopfli --i1000 --mls512 --bsr10 --lazy --ohh	November 26, 2019 @ 18:31
59500 bytes	-4 bytes	zopfli --i1000 --mls1024 --bsr17 --lazy --ohh	November 26, 2019 @ 18:31
59504 bytes	-5 bytes	zopfli --i1000 --mls512 --bsr18 --lazy --ohh	November 26, 2019 @ 18:31
59509 bytes	–	zopfli --i100 --mls1024 --bsr17 --lazy --ohh	November 26, 2019 @ 18:29

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, 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	59562	59564	59563	59562	59569	59559	59557	59572	59531	59521	59696	59655	59656	59657	59567
4	59556	59556	59556	59554	59544	59530	59548	59514	59529	59519	59516	59547	59514	59535	59550
6	59557	59557	59557	59559	59541	59548	59555	59526	59514	59529	59512	59535	59511	59526	59557
7	59543	59545	59544	59552	59540	59548	59556	59513	59513	59542	59540	59513	59513	59524	59527
8	59543	59545	59547	59550	59544	59553	59556	59518	59517	59501	59519	59541	59512	59527	59532
9	59555	59531	59554	59554	59544	59544	59546	59512	59513	59512	59496	59535	59513	59535	59554
10	59554	59527	59558	59528	59526	59524	59555	59508	59486	59503	59500	59534	59514	59504	59522
11	59525	59525	59528	59525	59511	59521	59547	59494	59499	59498	59496	59536	59495	59535	59527
12	59556	59536	59552	59554	59526	59519	59558	59496	59487	59498	59497	59541	59499	59528	59530
13	59526	59528	59523	59538	59528	59524	59555	59499	59493	59497	59496	59535	59499	59495	59549
14	59524	59524	59530	59527	59525	59534	59557	59496	59497	59499	59499	59535	59495	59506	59528
15	59528	59527	59525	59529	59520	59532	59555	59493	59487	59497	59496	59535	59501	59508	59509
16	59525	59527	59530	59531	59521	59526	59507	59506	59509	59499	59495	59534	59503	59506	59512
17	59522	59528	59527	59531	59523	59530	59546	59495	59493	59493	59501	59534	59495	59514	59550
18	59525	59533	59528	59531	59521	59528	59555	59510	59483	59500	59495	59495	59495	59495	59508
19	59526	59528	59530	59530	59525	59525	59557	59507	59493	59501	59505	59535	59498	59524	59499
20	59528	59527	59527	59550	59545	59528	59541	59495	59493	59502	59497	59541	59512	59524	59528
21	59555	59534	59554	59526	59523	59528	59556	59496	59494	59510	59497	59496	59513	59529	59526
22	59527	59528	59529	59527	59524	59529	59540	59511	59506	59504	59495	59535	59512	59508	59525
23	59555	59525	59530	59534	59519	59528	59557	59509	59494	59497	59498	59493	59513	59524	59526
25	59527	59524	59556	59524	59523	59533	59548	59498	59499	59499	59503	59535	59509	59506	59506
30	59523	59525	59525	59533	59524	59528	59558	59499	59493	59510	59501	59541	59493	59507	59508
40	59525	59528	59527	59531	59536	59537	59530	59498	59493	59497	59497	59496	59493	59506	59528

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	59509 bytes	–	100%
1,000	59496 bytes	-13 bytes	100%
10,000	59491 bytes	-5 bytes	100%
100,000	59485 bytes	-6 bytes	1.16%
1,000,000	59483 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)	59658 bytes	+175 bytes (+0.29%)	+51 bytes
1	59656 bytes	+173 bytes (+0.29%)	+49 bytes
2	59655 bytes	+172 bytes (+0.29%)	+48 bytes
3	59657 bytes	+174 bytes (+0.29%)	+50 bytes
4	59678 bytes	+195 bytes (+0.33%)	+71 bytes
5	59661 bytes	+178 bytes (+0.30%)	+54 bytes
6	59657 bytes	+174 bytes (+0.29%)	+50 bytes
7	59688 bytes	+205 bytes (+0.34%)	+81 bytes
8	59607 bytes	+124 bytes (+0.21%)	–

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	45833 bytes	-13650 bytes (-22.95%)
RAR (proprietary)	RAR	rar a -m5 -md64m -mc63:128t -mt1	48450 bytes	-11033 bytes (-18.55%)
PPMd (Wikipedia)	7zip	7za a -mx=9 -m0=ppmd	50307 bytes	-9176 bytes (-15.43%)
Brotli (Wikipedia)	brotli	brotli -q 11	53987 bytes	-5496 bytes (-9.24%)
Burrows-Wheeler transform (Wikipedia)	bzip2	bzip2 -9	54604 bytes	-4879 bytes (-8.20%)
LZMA2 (Wikipedia)	xz	xz -9	55564 bytes	-3919 bytes (-6.59%)
Zstandard (Wikipedia)	zstd	zstd -19	56895 bytes	-2588 bytes (-4.35%)

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.