Choose a version:
18% The original file has 373089 bytes (364.3k) and is available from the project website.
There you can find the official minified version, too, which brings down the size to 66321 bytes (64.8k, 18%).

After GZIP compression these minified files vary in size:
Boot
  30192 bytes (29.5k)
CDN, direct link
Baidu
  27092 bytes (26.5k)
CDN, direct link
cdnjs
  27013 bytes (26.4k)
CDN, direct link
gzip -6 (default)
  26848 bytes (26.2k)
local copy
cdnhttps
  26826 bytes (26.2k)
CDN, direct link
gzip -9
  26791 bytes (26.2k)
local copy
libdeflate -12
  26369 bytes (25.8k)
local copy
7zip -mx=9 -tgzip
  26044 bytes (25.4k)
local copy
pigz -11 -n
  25988 bytes (25.4k)
local copy
kzip -s0 -rn -b3
  25964 bytes (25.4k)
local copy
Zopfli
  25942 bytes (25.3k)
local copy
Zopfli (defluff)
  25941 bytes (25.3k)
local copy

perma-link to the smallest file on my server:
http://minime.stephan-brumme.com/files/angularjs/angular-0.9.19.min.js

You will automatically get the smallest AngularJS 0.9.19 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 884 bytes by using my AngularJS 0.9.19 Zopfli version instead of the best available CDN (3.41% smaller than cdnhttps, 25942 vs. 26826 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 --i100000 --mb8 --mls128 --bsr10 --lazy --ohh

(found November 26, 2015)
Description Value Parameter
iterations 100000  --i100000
maximum blocks 8  --mb8
maximum length score 128  --mls128
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 (25941 bytes).

Verify file integrity

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

MD5:
curl --silent --compressed https://code.angularjs.org/0.9.19/angular-0.9.19.min.js --location | md5sum
75bd3fd5efc2705893a4ad79f7f25b9f  -
curl --silent --compressed http://minime.stephan-brumme.com/files/angularjs/angular-0.9.19.min.zopfli.js.gz | md5sum
75bd3fd5efc2705893a4ad79f7f25b9f  -

SHA1:
curl --silent --compressed https://code.angularjs.org/0.9.19/angular-0.9.19.min.js --location | sha1sum
d6dbb39fdb9bf4bca7ecc2686382bf7ec332cd78  -
curl --silent --compressed http://minime.stephan-brumme.com/files/angularjs/angular-0.9.19.min.zopfli.js.gz | sha1sum
d6dbb39fdb9bf4bca7ecc2686382bf7ec332cd78  -

These CDNs send you the original file:
CDN Size (compressed) MD5 (uncompressed) Timestamp
Boot 30192 bytes 75bd3fd5efc2705893a4ad79f7f25b9f March 18, 2015 @ 10:04
cdnjs 27013 bytes 75bd3fd5efc2705893a4ad79f7f25b9f January 24, 2014 @ 03:45
cdnhttps 26826 bytes 75bd3fd5efc2705893a4ad79f7f25b9f December 24, 2015 @ 07:32

And some CDNs send you a different file:
CDN Size (compressed) MD5 (uncompressed) Comment / Diff Timestamp
Baidu 27092 bytes 542b6417f189ade9936a23ebc369ccdf 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
25942 bytes -1 byte zopfli --i100000 --mls128 --bsr10 --lazy --ohh November 26, 2015 @ 14:34
25943 bytes -2 bytes zopfli --i100000 --mls8192 --bsr4 --lazy --ohh November 26, 2015 @ 12:31
25945 bytes -1 byte zopfli --i10000 --mls8192 --bsr4 --lazy --ohh September 11, 2015 @ 06:26
25946 bytes -1 byte zopfli --i10000 --mls4096 --bsr13 --lazy --ohh September 11, 2015 @ 06:15
25947 bytes -1 byte zopfli --i10000 --mls2048 --bsr8 --lazy --ohh September 11, 2015 @ 05:41
25948 bytes -1 byte zopfli --i1000 --mls8192 --bsr4 --lazy --ohh September 7, 2015 @ 21:56
25949 bytes -3 bytes zopfli --i1000 --mls2048 --bsr13 --lazy --ohh September 7, 2015 @ 21:56
25952 bytes zopfli --i100 --mls8192 --bsr4 --lazy --ohh September 7, 2015 @ 16:10

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 @ 14:41.

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
25973 25971 25969 25966 25961 25959 25958 25964 25964 25976 25984 25993 25966 25979 25975
25974 25950 25947 25956 25956 25955 25952 25953 25953 25954 25958 25954 25943 25979 25960
25947 25948 25946 25943 25948 25948 25943 25952 25957 25956 25951 25958 25967 25955 25960
25946 25947 25945 25942 25949 25953 25942 25951 25965 25949 25949 25947 25960 25955 25976
25949 25955 25947 25954 25960 25956 25956 25948 25954 25956 25945 25946 25962 25953 25973
25956 25966 25946 25953 25959 25954 25947 25968 25967 25974 25955 25948 25958 25954 25955
25942 25947 25944 25954 25948 25947 25942 25951 25953 25951 25944 25946 25968 25954 25963
25950 25955 25950 25954 25958 25952 25942 25947 25953 25959 25952 25947 25956 25952 25973
25948 25947 25953 25956 25946 25948 25952 25960 25953 25954 25961 25948 25958 25953 25956
25947 25949 25945 25946 25945 25948 25943 25953 25953 25952 25945 25946 25960 25954 25956
25947 25954 25954 25953 25957 25952 25945 25951 25953 25953 25948 25944 25961 25954 25957
25953 25952 25958 25953 25945 25952 25957 25951 25966 25953 25953 25947 25960 25955 25953
25946 25947 25947 25946 25949 25945 25948 25943 25953 25955 25960 25955 25957 25956 25960
25956 25946 25946 25947 25958 25954 25945 25951 25952 25947 25957 25946 25958 25950 25960
25952 25946 25955 25955 25956 25952 25951 25952 25953 25952 25951 25946 25957 25952 25962
25948 25949 25946 25947 25949 25947 25946 25946 25952 25958 25952 25947 25958 25954 25956
25954 25954 25951 25954 25957 25951 25945 25949 25955 25953 25948 25947 25958 25953 25961
25952 25952 25944 25953 25960 25955 25953 25951 25968 25954 25951 25946 25968 25956 25952
25948 25946 25946 25945 25945 25949 25943 25946 25946 25954 25955 25946 25959 25953 25963
25957 25948 25953 25953 25957 25952 25946 25947 25953 25955 25949 25947 25961 25953 25955
25947 25947 25946 25953 25946 25948 25942 25948 25946 25952 25949 25946 25970 25954 25960
25946 25947 25945 25953 25948 25947 25945 25951 25953 25952 25954 25947 25967 25951 25954
25947 25946 25946 25953 25956 25947 25946 25951 25953 25958 25949 25947 25958 25955 25964

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 25952 bytes 100%
1,000 25947 bytes -5 bytes 100%
10,000 25944 bytes -3 bytes 100%
100,000 25942 bytes -2 bytes 5.22%
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
26010 bytes +68 bytes (+0.26%) +46 bytes
26449 bytes +507 bytes (+1.95%) +485 bytes
26010 bytes +68 bytes (+0.26%) +46 bytes
25964 bytes +22 bytes (+0.08%)
25982 bytes +40 bytes (+0.15%) +18 bytes
25999 bytes +57 bytes (+0.22%) +35 bytes
26024 bytes +82 bytes (+0.32%) +60 bytes
26044 bytes +102 bytes (+0.39%) +80 bytes
26076 bytes +134 bytes (+0.52%) +112 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 22595 bytes -3347 bytes (-12.90%)
RAR (proprietary) RAR rar a -m5 -md64m -mc63:128t -mt1 23134 bytes -2808 bytes (-10.82%)
PPMd (Wikipedia) 7zip 7za a -mx=9 -m0=ppmd 23208 bytes -2734 bytes (-10.54%)
Brotli (Wikipedia) brotli brotli -q 11 24054 bytes -1888 bytes (-7.28%)
LZMA2 (Wikipedia) xz xz -9 25352 bytes -590 bytes (-2.27%)
Burrows-Wheeler transform (Wikipedia) bzip2 bzip2 -9 25867 bytes -75 bytes (-0.29%)
ZSTD (Wikipedia) zstd zstd -19 26121 bytes +179 bytes (+0.69%)

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