Choose a version:
18% The original file has 336738 bytes (328.8k) and is available from the project website.
There you can find the official minified version, too, which brings down the size to 61313 bytes (59.9k, 18%).

After GZIP compression these minified files vary in size:
Boot
  27694 bytes (27.0k)
CDN, direct link
Baidu
  24961 bytes (24.4k)
CDN, direct link
cdnjs
  24899 bytes (24.3k)
CDN, direct link
gzip -6 (default)
  24783 bytes (24.2k)
local copy
cdnhttps
  24761 bytes (24.2k)
CDN, direct link
gzip -9
  24734 bytes (24.2k)
local copy
libdeflate -12
  24161 bytes (23.6k)
local copy
7zip -mx=9 -tgzip
  23932 bytes (23.4k)
local copy
kzip -s0 -rn -b4
  23785 bytes (23.2k)
local copy
pigz -11 -n
  23746 bytes (23.2k)
local copy
Zopfli
  23720 bytes (23.2k)
local copy

perma-link to the smallest file on my server:
http://minime.stephan-brumme.com/files/angularjs/angular-0.9.16.min.js

You will automatically get the smallest AngularJS 0.9.16 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 1041 bytes by using my AngularJS 0.9.16 Zopfli version instead of the best available CDN (4.39% smaller than cdnhttps, 23720 vs. 24761 bytes):
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 --i10000 --mb8 --mls256 --bsr7 --lazy --ohh

(found October 21, 2015)
Description Value Parameter
iterations 10000  --i10000
maximum blocks 8  --mb8
maximum length score 256  --mls256
block splitting recursion 7  --bsr7
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/0.9.16/angular-0.9.16.min.js --location | md5sum
34481c8a61fcea85565b46f77223d550  -
curl --silent --compressed http://minime.stephan-brumme.com/files/angularjs/angular-0.9.16.min.zopfli.js.gz | md5sum
34481c8a61fcea85565b46f77223d550  -

SHA1:
curl --silent --compressed https://code.angularjs.org/0.9.16/angular-0.9.16.min.js --location | sha1sum
e8ce2d504fcaf5bf7ef2197b43e348ee94a294d1  -
curl --silent --compressed http://minime.stephan-brumme.com/files/angularjs/angular-0.9.16.min.zopfli.js.gz | sha1sum
e8ce2d504fcaf5bf7ef2197b43e348ee94a294d1  -

These CDNs send you the original file:
CDN Size (compressed) MD5 (uncompressed) Timestamp
Boot 27694 bytes 34481c8a61fcea85565b46f77223d550 March 18, 2015 @ 10:03
cdnjs 24899 bytes 34481c8a61fcea85565b46f77223d550 March 28, 2014 @ 14:15
cdnhttps 24761 bytes 34481c8a61fcea85565b46f77223d550 December 24, 2015 @ 07:32

And some CDNs send you a different file:
CDN Size (compressed) MD5 (uncompressed) Comment / Diff Timestamp
Baidu 24961 bytes b5e36a56f9999159c9e0cefa911d49fd 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:

1.6.5, 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
23720 bytes -5 bytes zopfli --i10000 --mls256 --bsr7 --lazy --ohh October 21, 2015 @ 12:57
23725 bytes -2 bytes zopfli --i1000 --mls256 --bsr7 --lazy --ohh September 17, 2015 @ 02:22
23727 bytes -2 bytes zopfli --i10000 --mls512 --bsr11 --lazy --ohh September 11, 2015 @ 09:29
23729 bytes -1 byte zopfli --i10000 --mls2048 --bsr9 --lazy --ohh September 11, 2015 @ 09:27
23730 bytes -1 byte zopfli --i1000 --mls2048 --bsr10 --lazy --ohh September 7, 2015 @ 22:06
23731 bytes -1 byte zopfli --i1000 --mls512 --bsr11 --lazy --ohh September 7, 2015 @ 22:05
23732 bytes -3 bytes zopfli --i1000 --mls512 --bsr14 --lazy --ohh September 7, 2015 @ 22:04
23735 bytes zopfli --i100 --mls512 --bsr10 --lazy --ohh September 7, 2015 @ 16:17

If there are multiple parameter sets yielding the same compressed size, only the first one found is shown.

Most recent activity on June 16, 2016 @ 14:39.

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
23754 23753 23754 23751 23751 23741 23743 23739 23744 23765 23769 23759 23764 23765 23766
23730 23730 23727 23730 23728 23756 23756 23751 23754 23749 23742 23744 23750 23738 23755
23735 23737 23736 23734 23728 23731 23735 23740 23757 23743 23729 23729 23747 23740 23773
23734 23736 23727 23736 23738 23735 23728 23720 23733 23731 23730 23729 23736 23734 23737
23730 23728 23729 23728 23733 23727 23730 23733 23739 23744 23734 23732 23735 23737 23752
23728 23728 23727 23727 23727 23728 23729 23728 23731 23731 23729 23731 23743 23734 23762
23728 23729 23727 23727 23726 23728 23729 23729 23730 23732 23728 23732 23737 23734 23751
23739 23729 23728 23729 23740 23728 23740 23740 23727 23731 23733 23734 23734 23734 23752
23728 23729 23727 23726 23729 23729 23730 23729 23733 23732 23730 23736 23740 23736 23754
23728 23731 23729 23730 23727 23728 23730 23729 23733 23732 23735 23732 23730 23735 23752
23739 23749 23738 23727 23726 23733 23740 23729 23731 23732 23731 23732 23739 23735 23752
23729 23729 23726 23726 23737 23737 23734 23728 23728 23732 23730 23730 23751 23734 23737
23727 23731 23728 23730 23739 23728 23740 23738 23732 23731 23732 23727 23735 23735 23743
23730 23730 23727 23729 23726 23728 23730 23727 23728 23731 23735 23729 23750 23734 23752
23728 23729 23726 23727 23728 23728 23731 23729 23733 23733 23730 23729 23757 23736 23747
23729 23730 23728 23729 23729 23727 23730 23729 23734 23732 23734 23730 23739 23733 23758
23730 23729 23728 23727 23727 23728 23730 23730 23732 23734 23730 23732 23740 23736 23757
23729 23727 23727 23727 23727 23729 23731 23731 23732 23734 23733 23731 23739 23735 23750
23729 23727 23729 23728 23727 23730 23730 23734 23733 23733 23727 23729 23743 23735 23753
23729 23730 23729 23727 23727 23729 23730 23732 23732 23733 23730 23734 23739 23734 23739
23727 23731 23728 23728 23726 23728 23730 23734 23732 23732 23730 23729 23739 23735 23753
23729 23729 23727 23727 23728 23728 23728 23728 23733 23732 23730 23729 23730 23734 23752
23727 23731 23729 23729 23729 23728 23731 23729 23733 23731 23729 23730 23740 23735 23748

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 23728 bytes 100%
1,000 23725 bytes -3 bytes 100%
10,000 23720 bytes -5 bytes 100%
100,000 23720 bytes 0.29%
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
23804 bytes +84 bytes (+0.35%) +19 bytes
24246 bytes +526 bytes (+2.22%) +461 bytes
23805 bytes +85 bytes (+0.36%) +20 bytes
23819 bytes +99 bytes (+0.42%) +34 bytes
23785 bytes +65 bytes (+0.27%)
23811 bytes +91 bytes (+0.38%) +26 bytes
23845 bytes +125 bytes (+0.53%) +60 bytes
23866 bytes +146 bytes (+0.62%) +81 bytes
23873 bytes +153 bytes (+0.65%) +88 bytes

Non-DEFLATE Algorithms

Archivers based on completely different compression algorithms often produce superior results.
Unfortunately, browsers only support gzip compression at the moment.
Algorithm Program Parameters Size Compared To Best Zopfli
ZPAQ (Wikipedia) zpaq zpaq -method 69 20796 bytes -2924 bytes (-12.33%)
RAR (proprietary) RAR rar a -m5 -md64m -mc63:128t -mt1 21153 bytes -2567 bytes (-10.82%)
Brotli (Wikipedia) brotli brotli -q 11 22007 bytes -1713 bytes (-7.22%)
PPMd (Wikipedia) 7zip 7za a -mx=9 -m0=ppmd 22293 bytes -1427 bytes (-6.02%)
LZMA2 (Wikipedia) xz xz -9 23328 bytes -392 bytes (-1.65%)
Burrows-Wheeler transform (Wikipedia) bzip2 bzip2 -9 23658 bytes -62 bytes (-0.26%)
ZSTD (Wikipedia) zstd zstd -19 24010 bytes +290 bytes (+1.22%)

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):


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 2017.
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