Choose a version:
13% The original file has 966351 bytes (943.7k) and is available from the project website.
There you can find the official minified version, too, which brings down the size to 126443 bytes (123.5k, 13%).

After GZIP compression these minified files vary in size:
Boot
  53279 bytes (52.0k)
CDN, direct link
cdnjs
  46801 bytes (45.7k)
CDN, direct link
unpkg
  46542 bytes (45.5k)
CDN, direct link
gzip -6 (default)
  46504 bytes (45.4k)
local copy
cdnhttps
  46482 bytes (45.4k)
CDN, direct link
Google
  46448 bytes (45.4k)
CDN, direct link
jsdelivr
  46414 bytes (45.3k)
CDN, direct link
gzip -9
  46406 bytes (45.3k)
local copy
7zip -mx=9 -tgzip
  45054 bytes (44.0k)
local copy
kzip -s0 -rn -b1
  45005 bytes (44.0k)
local copy
libdeflate -12
  45005 bytes (44.0k)
local copy
pigz -11 -n
  44940 bytes (43.9k)
local copy
Zopfli
  44903 bytes (43.9k)
local copy
Zopfli (defluff)
  44901 bytes (43.8k)
local copy

perma-link to the smallest file on my server:
http://minime.stephan-brumme.com/files/angularjs/angular-1.3.17.min.js

You will automatically get the smallest AngularJS 1.3.17 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 1511 bytes by using my AngularJS 1.3.17 Zopfli version instead of the best available CDN (3.37% smaller than jsdelivr, 44903 vs. 46414 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 --mls256 --bsr20 --lazy --ohh

(found November 30, 2015)
Description Value Parameter
iterations 100000  --i100000
maximum blocks 8  --mb8
maximum length score 256  --mls256
block splitting recursion 20  --bsr20
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 (44901 bytes).

Verify file integrity

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

MD5:
curl --silent --compressed https://code.angularjs.org/1.3.17/angular.min.js --location | md5sum
a8cb0e381723a7a9c946d35795651769  -
curl --silent --compressed http://minime.stephan-brumme.com/files/angularjs/angular-1.3.17.min.zopfli.js.gz | md5sum
a8cb0e381723a7a9c946d35795651769  -

SHA1:
curl --silent --compressed https://code.angularjs.org/1.3.17/angular.min.js --location | sha1sum
aa69373f9d35d2064d7d58c842fe5a38180b6921  -
curl --silent --compressed http://minime.stephan-brumme.com/files/angularjs/angular-1.3.17.min.zopfli.js.gz | sha1sum
aa69373f9d35d2064d7d58c842fe5a38180b6921  -

All listed CDNs deliver identical contents:
CDN Size (compressed) MD5 (uncompressed) Timestamp
Boot 53279 bytes a8cb0e381723a7a9c946d35795651769 July 8, 2015 @ 15:32
cdnjs 46801 bytes a8cb0e381723a7a9c946d35795651769 July 7, 2015 @ 08:33
unpkg 46542 bytes a8cb0e381723a7a9c946d35795651769 July 11, 2016 @ 15:53
cdnhttps 46482 bytes a8cb0e381723a7a9c946d35795651769 December 24, 2015 @ 07:32
Google 46448 bytes a8cb0e381723a7a9c946d35795651769 July 7, 2015 @ 00:20
jsdelivr 46414 bytes a8cb0e381723a7a9c946d35795651769 July 11, 2015 @ 17:50

Note: only the MD5 hashes are shown to keep things simple.

Other Versions

Available AngularJS versions at minime.stephan-brumme.com:

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
44903 bytes -1 byte zopfli --i100000 --mls256 --bsr20 --lazy --ohh November 30, 2015 @ 14:43
44904 bytes -1 byte zopfli --i10000 --mls256 --bsr20 --lazy --ohh October 13, 2015 @ 20:09
44905 bytes -2 bytes zopfli --i10000 --mls2048 --bsr12 --lazy --ohh September 8, 2015 @ 19:02
44907 bytes -1 byte zopfli --i10000 --mls2048 --bsr9 --lazy --ohh September 8, 2015 @ 18:42
44908 bytes -5 bytes zopfli --i1000 --mls2048 --bsr12 --lazy --ohh September 7, 2015 @ 18:17
44913 bytes -6 bytes zopfli --i1000 --mls512 --bsr16 --lazy --ohh September 7, 2015 @ 18:16
44919 bytes zopfli --i100 --mls4096 --bsr16 --lazy --ohh September 7, 2015 @ 16:33

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

Most recent activity on July 11, 2016 @ 15:53.

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 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
44924 44932 44932 44933 44932 44931 44944 44924 44927 44926 44927 44925 44931 44927 44943
44939 44939 44932 44936 44938 44925 44921 44919 44921 44925 44922 44924 44918 44915 44928
44918 44909 44917 44925 44937 44909 44916 44912 44918 44916 44923 44913 44917 44914 44928
44913 44911 44919 44928 44924 44915 44915 44915 44918 44915 44922 44911 44912 44919 44927
44915 44924 44923 44924 44936 44909 44916 44914 44927 44921 44913 44915 44918 44915 44924
44919 44934 44918 44921 44914 44911 44911 44906 44924 44922 44907 44915 44918 44918 44927
44917 44934 44934 44927 44932 44932 44917 44910 44924 44921 44923 44916 44917 44915 44924
44911 44910 44917 44920 44932 44916 44907 44914 44917 44923 44913 44915 44914 44913 44932
44932 44909 44925 44924 44932 44909 44907 44906 44919 44921 44903 44914 44918 44915 44930
44915 44932 44918 44931 44917 44933 44905 44909 44924 44923 44917 44913 44918 44915 44930
44933 44931 44936 44919 44932 44932 44911 44912 44926 44923 44923 44916 44909 44915 44930
44916 44912 44925 44928 44924 44908 44916 44915 44918 44910 44917 44914 44918 44919 44927
44919 44932 44924 44921 44933 44920 44916 44914 44910 44926 44922 44910 44928 44912 44917
44919 44932 44933 44923 44927 44932 44923 44906 44911 44914 44923 44913 44918 44914 44927
44911 44934 44924 44922 44917 44919 44933 44908 44928 44923 44914 44915 44919 44914 44927
44916 44904 44925 44917 44932 44926 44906 44920 44918 44922 44922 44917 44918 44912 44927
44939 44932 44924 44923 44932 44918 44922 44903 44927 44923 44910 44924 44909 44914 44925
44914 44905 44926 44923 44923 44911 44904 44905 44925 44922 44909 44923 44921 44918 44925
44915 44905 44922 44923 44917 44910 44911 44914 44924 44925 44923 44918 44918 44915 44927
44920 44910 44923 44917 44925 44909 44917 44915 44918 44921 44915 44919 44913 44915 44914
44929 44934 44924 44927 44932 44931 44916 44915 44911 44924 44923 44924 44918 44915 44930
44916 44932 44933 44918 44924 44907 44916 44910 44925 44922 44915 44915 44918 44914 44929
44919 44909 44927 44937 44937 44919 44910 44905 44911 44922 44922 44917 44918 44911 44931

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 44919 bytes 100%
1,000 44907 bytes -12 bytes 100%
10,000 44904 bytes -3 bytes 100%
100,000 44903 bytes -1 byte 1.45%
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
45005 bytes +102 bytes (+0.23%)
45005 bytes +102 bytes (+0.23%)
45021 bytes +118 bytes (+0.26%) +16 bytes
45047 bytes +144 bytes (+0.32%) +42 bytes
45066 bytes +163 bytes (+0.36%) +61 bytes
45103 bytes +200 bytes (+0.45%) +98 bytes
45132 bytes +229 bytes (+0.51%) +127 bytes
45112 bytes +209 bytes (+0.47%) +107 bytes
45118 bytes +215 bytes (+0.48%) +113 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 35834 bytes -9069 bytes (-20.20%)
RAR (proprietary) RAR rar a -m5 -md64m -mc63:128t -mt1 37400 bytes -7503 bytes (-16.71%)
PPMd (Wikipedia) 7zip 7za a -mx=9 -m0=ppmd 39241 bytes -5662 bytes (-12.61%)
Brotli (Wikipedia) brotli brotli -q 11 41241 bytes -3662 bytes (-8.16%)
Burrows-Wheeler transform (Wikipedia) bzip2 bzip2 -9 41952 bytes -2951 bytes (-6.57%)
LZMA2 (Wikipedia) xz xz -9 42672 bytes -2231 bytes (-4.97%)
ZSTD (Wikipedia) zstd zstd -19 43822 bytes -1081 bytes (-2.41%)

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