Choose a version:
13% The original file has 966755 bytes (944.1k) and is available from the project website.
There you can find the official minified version, too, which brings down the size to 126439 bytes (123.5k, 13%).

After GZIP compression these minified files vary in size:
Boot
  53364 bytes (52.1k)
CDN, direct link
cdnjs
  46827 bytes (45.7k)
CDN, direct link
unpkg
  46556 bytes (45.5k)
CDN, direct link
gzip -6 (default)
  46530 bytes (45.4k)
local copy
cdnhttps
  46508 bytes (45.4k)
CDN, direct link
Google
  46478 bytes (45.4k)
CDN, direct link
gzip -9
  46425 bytes (45.3k)
local copy
7zip -mx=9 -tgzip
  45077 bytes (44.0k)
local copy
kzip -s0 -rn -b1
  45041 bytes (44.0k)
local copy
libdeflate -12
  45036 bytes (44.0k)
local copy
pigz -11 -n
  44958 bytes (43.9k)
local copy
Zopfli
  44933 bytes (43.9k)
local copy
Zopfli (defluff)
  44932 bytes (43.9k)
local copy

perma-link to the smallest file on my server:
http://minime.stephan-brumme.com/files/angularjs/angular-1.3.19.min.js

You will automatically get the smallest AngularJS 1.3.19 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 1545 bytes by using my AngularJS 1.3.19 Zopfli version instead of the best available CDN (3.44% smaller than Google, 44933 vs. 46478 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 --bsr16 --lazy --ohh

(found February 17, 2016)
Description Value Parameter
iterations 100000  --i100000
maximum blocks 8  --mb8
maximum length score 128  --mls128
block splitting recursion 16  --bsr16
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 (44932 bytes).

Verify file integrity

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

MD5:
curl --silent --compressed https://code.angularjs.org/1.3.19/angular.min.js --location | md5sum
6d7fe8ac210ac16ffc21ec427d59a912  -
curl --silent --compressed http://minime.stephan-brumme.com/files/angularjs/angular-1.3.19.min.zopfli.js.gz | md5sum
6d7fe8ac210ac16ffc21ec427d59a912  -

SHA1:
curl --silent --compressed https://code.angularjs.org/1.3.19/angular.min.js --location | sha1sum
c65384a6a182634ba44ef2109b80e2b17546892d  -
curl --silent --compressed http://minime.stephan-brumme.com/files/angularjs/angular-1.3.19.min.zopfli.js.gz | sha1sum
c65384a6a182634ba44ef2109b80e2b17546892d  -

All listed CDNs deliver identical contents:
CDN Size (compressed) MD5 (uncompressed) Timestamp
Boot 53364 bytes 6d7fe8ac210ac16ffc21ec427d59a912 (invalid)
cdnjs 46827 bytes 6d7fe8ac210ac16ffc21ec427d59a912 (invalid)
unpkg 46556 bytes 6d7fe8ac210ac16ffc21ec427d59a912 July 11, 2016 @ 15:53
cdnhttps 46508 bytes 6d7fe8ac210ac16ffc21ec427d59a912 December 24, 2015 @ 07:32
Google 46478 bytes 6d7fe8ac210ac16ffc21ec427d59a912 December 6, 2015 @ 20:30

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
44933 bytes -1 byte zopfli --i100000 --mls128 --bsr16 --lazy --ohh February 17, 2016 @ 17:53
44934 bytes -2 bytes zopfli --i100000 --mls128 --bsr8 --lazy --ohh February 9, 2016 @ 05:25
44936 bytes -1 byte zopfli --i10000 --mls4 --bsr8 --lazy --ohh February 8, 2016 @ 22:07
44937 bytes -1 byte zopfli --i10000 --mls128 --bsr13 --lazy --ohh February 8, 2016 @ 21:56
44938 bytes -1 byte zopfli --i1000 --mls128 --bsr13 --lazy --ohh February 8, 2016 @ 21:43
44939 bytes -1 byte zopfli --i1000 --mls1024 --bsr11 --lazy --ohh February 8, 2016 @ 21:41
44940 bytes -2 bytes zopfli --i1000 --mls4 --bsr8 --lazy --ohh February 8, 2016 @ 21:40
44942 bytes -3 bytes zopfli --i1000 --mls64 --bsr15 --lazy --ohh February 8, 2016 @ 21:40
44945 bytes zopfli --i100 --mls4 --bsr8 --lazy --ohh February 8, 2016 @ 19:56

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
44964 44965 44965 44966 44965 44964 44953 44974 44957 44957 44968 44957 44957 44954 44962
44964 44966 44965 44966 44963 44970 44954 44954 44948 44953 44945 44951 44963 44941 44964
44952 44939 44952 44955 44952 44958 44942 44946 44951 44944 44939 44945 44942 44940 44976
44947 44953 44963 44965 44943 44940 44940 44946 44946 44941 44938 44946 44942 44945 44966
44963 44934 44973 44965 44938 44962 44934 44946 44947 44951 44942 44947 44946 44941 44973
44945 44955 44953 44964 44946 44946 44937 44942 44947 44942 44939 44955 44945 44940 44969
44955 44953 44975 44953 44950 44942 44945 44947 44947 44950 44938 44940 44947 44941 44970
44950 44954 44975 44951 44946 44961 44934 44952 44946 44937 44939 44943 44942 44941 44970
44963 44955 44954 44954 44942 44963 44937 44947 44947 44941 44938 44942 44940 44941 44963
44961 44955 44976 44966 44953 44965 44937 44947 44947 44953 44939 44940 44940 44941 44969
44952 44954 44968 44952 44964 44964 44939 44947 44946 44955 44938 44943 44941 44940 44970
44946 44954 44976 44960 44947 44937 44941 44947 44952 44947 44940 44944 44941 44942 44955
44966 44952 44975 44954 44954 44961 44933 44956 44946 44950 44939 44940 44940 44941 44972
44946 44940 44965 44953 44956 44964 44959 44952 44946 44950 44938 44940 44942 44942 44979
44963 44955 44965 44952 44962 44952 44955 44947 44957 44950 44939 44943 44942 44941 44968
44947 44938 44967 44963 44954 44961 44937 44955 44945 44953 44960 44940 44939 44941 44969
44953 44951 44956 44954 44963 44964 44954 44953 44945 44963 44938 44956 44961 44941 44968
44950 44954 44953 44952 44949 44939 44934 44942 44945 44950 44959 44954 44960 44945 44965
44951 44956 44953 44958 44951 44939 44940 44947 44948 44951 44938 44943 44942 44941 44967
44945 44953 44952 44953 44945 44938 44953 44947 44948 44951 44939 44942 44941 44941 44957
44954 44968 44966 44953 44952 44963 44955 44945 44945 44951 44939 44943 44942 44940 44955
44951 44957 44955 44954 44952 44964 44944 44945 44947 44951 44939 44941 44942 44942 44972
44954 44938 44955 44957 44946 44940 44938 44947 44946 44955 44938 44940 44941 44941 44968

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 44945 bytes 100%
1,000 44938 bytes -7 bytes 100%
10,000 44936 bytes -2 bytes 100%
100,000 44933 bytes -3 bytes 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
45046 bytes +113 bytes (+0.25%) +5 bytes
45041 bytes +108 bytes (+0.24%)
45066 bytes +133 bytes (+0.30%) +25 bytes
45089 bytes +156 bytes (+0.35%) +48 bytes
45106 bytes +173 bytes (+0.39%) +65 bytes
45131 bytes +198 bytes (+0.44%) +90 bytes
45176 bytes +243 bytes (+0.54%) +135 bytes
45166 bytes +233 bytes (+0.52%) +125 bytes
45173 bytes +240 bytes (+0.53%) +132 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 35781 bytes -9152 bytes (-20.37%)
RAR (proprietary) RAR rar a -m5 -md64m -mc63:128t -mt1 37417 bytes -7516 bytes (-16.73%)
PPMd (Wikipedia) 7zip 7za a -mx=9 -m0=ppmd 39288 bytes -5645 bytes (-12.56%)
Brotli (Wikipedia) brotli brotli -q 11 41236 bytes -3697 bytes (-8.23%)
Burrows-Wheeler transform (Wikipedia) bzip2 bzip2 -9 41998 bytes -2935 bytes (-6.53%)
LZMA2 (Wikipedia) xz xz -9 42676 bytes -2257 bytes (-5.02%)
ZSTD (Wikipedia) zstd zstd -19 43836 bytes -1097 bytes (-2.44%)

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