Choose a version:
14% The original file has 769976 bytes (751.9k) and is available from the project website.
There you can find the official minified version, too, which brings down the size to 106439 bytes (103.9k, 14%).

After GZIP compression these minified files vary in size:
Boot
  44899 bytes (43.8k)
CDN, direct link
cdnjs
  39572 bytes (38.6k)
CDN, direct link
gzip -6 (default)
  39327 bytes (38.4k)
local copy
cdnhttps
  39305 bytes (38.4k)
CDN, direct link
gzip -9
  39279 bytes (38.4k)
local copy
Yandex
  39264 bytes (38.3k)
CDN, direct link
jsdelivr
  39264 bytes (38.3k)
CDN, direct link
Google
  39255 bytes (38.3k)
CDN, direct link
Sina
  39255 bytes (38.3k)
CDN, direct link
7zip -mx=9 -tgzip
  38087 bytes (37.2k)
local copy
kzip -s0 -rn -b1
  38072 bytes (37.2k)
local copy
libdeflate -12
  38055 bytes (37.2k)
local copy
pigz -11 -n
  38034 bytes (37.1k)
local copy
Zopfli
  38001 bytes (37.1k)
local copy

perma-link to the smallest file on my server:
http://minime.stephan-brumme.com/files/angularjs/angular-1.2.19.min.js

You will automatically get the smallest AngularJS 1.2.19 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 1254 bytes by using my AngularJS 1.2.19 Zopfli version instead of the best available CDN (3.30% smaller than Sina, 38001 vs. 39255 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 --mls16384 --bsr12 --lazy --ohh

(found November 27, 2015)
Description Value Parameter
iterations 100000  --i100000
maximum blocks 8  --mb8
maximum length score 16384  --mls16384
block splitting recursion 12  --bsr12
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/1.2.19/angular.min.js --location | md5sum
027d33a76ad746cfedb6cff76188cb4b  -
curl --silent --compressed http://minime.stephan-brumme.com/files/angularjs/angular-1.2.19.min.zopfli.js.gz | md5sum
027d33a76ad746cfedb6cff76188cb4b  -

SHA1:
curl --silent --compressed https://code.angularjs.org/1.2.19/angular.min.js --location | sha1sum
8ce5788a703f30891d63eb8d18ae0ee7797f1f1a  -
curl --silent --compressed http://minime.stephan-brumme.com/files/angularjs/angular-1.2.19.min.zopfli.js.gz | sha1sum
8ce5788a703f30891d63eb8d18ae0ee7797f1f1a  -

All listed CDNs deliver identical contents:
CDN Size (compressed) MD5 (uncompressed) Timestamp
Boot 44899 bytes 027d33a76ad746cfedb6cff76188cb4b March 18, 2015 @ 10:28
cdnjs 39572 bytes 027d33a76ad746cfedb6cff76188cb4b July 19, 2014 @ 05:15
cdnhttps 39305 bytes 027d33a76ad746cfedb6cff76188cb4b December 24, 2015 @ 07:32
Yandex 39264 bytes 027d33a76ad746cfedb6cff76188cb4b June 11, 2015 @ 14:17
jsdelivr 39264 bytes 027d33a76ad746cfedb6cff76188cb4b August 7, 2014 @ 18:32
Google 39255 bytes 027d33a76ad746cfedb6cff76188cb4b July 1, 2014 @ 20:26
Sina 39255 bytes 027d33a76ad746cfedb6cff76188cb4b July 2, 2014 @ 12:00

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
38001 bytes -1 byte zopfli --i100000 --mls16384 --bsr12 --lazy --ohh November 27, 2015 @ 23:34
38002 bytes -3 bytes zopfli --i100000 --mls16384 --bsr20 --lazy --ohh November 27, 2015 @ 22:58
38005 bytes -1 byte zopfli --i10000 --mls8192 --bsr6 --lazy --ohh September 9, 2015 @ 16:24
38006 bytes -2 bytes zopfli --i10000 --mls512 --bsr14 --lazy --ohh September 9, 2015 @ 16:00
38008 bytes -1 byte zopfli --i1000 --mls8192 --bsr10 --lazy --ohh September 7, 2015 @ 20:02
38009 bytes -1 byte zopfli --i1000 --mls512 --bsr9 --lazy --ohh September 7, 2015 @ 20:00
38010 bytes zopfli --i100 --mls8192 --bsr4 --lazy --ohh September 7, 2015 @ 16:12

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
38008 38009 38008 38008 38009 38008 38011 38010 38009 38010 38008 38010 38010 38008 38008
38015 38017 38010 38010 38011 38024 38010 38023 38010 38009 38015 38013 38008 38006 38012
38008 38009 38012 38015 38011 38011 38011 38008 38014 38015 38016 38014 38005 38007 38009
38008 38008 38006 38009 38009 38010 38007 38010 38021 38025 38011 38021 38006 38002 38007
38011 38009 38007 38011 38007 38007 38010 38022 38011 38013 38012 38006 38007 38006 38010
38010 38011 38008 38030 38014 38010 38020 38024 38006 38013 38012 38021 38006 38007 38008
38012 38013 38007 38022 38015 38008 38010 38026 38021 38011 38011 38008 38006 38007 38008
38010 38010 38008 38010 38009 38011 38011 38009 38011 38012 38024 38023 38006 38007 38008
38009 38009 38007 38008 38010 38010 38010 38015 38010 38012 38020 38010 38009 38001 38009
38009 38009 38007 38009 38008 38007 38010 38008 38007 38010 38015 38014 38007 38007 38008
38031 38008 38034 38008 38008 38011 38010 38007 38006 38010 38012 38011 38009 38007 38009
38014 38010 38013 38009 38013 38006 38013 38027 38010 38013 38012 38010 38007 38002 38010
38008 38011 38030 38029 38039 38022 38021 38026 38022 38023 38020 38011 38006 38003 38009
38009 38009 38008 38009 38009 38023 38008 38022 38026 38024 38023 38022 38009 38003 38009
38009 38009 38011 38009 38010 38010 38011 38012 38010 38013 38012 38010 38007 38006 38008
38011 38011 38007 38010 38009 38006 38009 38009 38010 38010 38012 38010 38006 38007 38006
38008 38008 38008 38008 38009 38008 38009 38009 38011 38008 38012 38010 38006 38002 38010
38011 38011 38009 38008 38008 38007 38020 38020 38014 38014 38011 38011 38006 38006 38008
38008 38008 38008 38009 38009 38006 38021 38020 38022 38022 38012 38023 38006 38006 38009
38010 38009 38007 38009 38011 38007 38010 38009 38011 38010 38012 38010 38007 38006 38008
38011 38008 38006 38009 38007 38008 38010 38007 38010 38006 38020 38007 38006 38006 38009
38006 38009 38006 38010 38008 38006 38020 38020 38010 38011 38011 38010 38006 38007 38009
38011 38013 38011 38008 38009 38011 38010 38010 38010 38012 38012 38010 38009 38007 38008

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 38007 bytes 100%
1,000 38006 bytes -1 byte 100%
10,000 38005 bytes -1 byte 100%
100,000 38001 bytes -4 bytes 2.03%
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
38073 bytes +72 bytes (+0.19%) +1 byte
38072 bytes +71 bytes (+0.19%)
38103 bytes +102 bytes (+0.27%) +31 bytes
38129 bytes +128 bytes (+0.34%) +57 bytes
38177 bytes +176 bytes (+0.46%) +105 bytes
38197 bytes +196 bytes (+0.52%) +125 bytes
38193 bytes +192 bytes (+0.51%) +121 bytes
38207 bytes +206 bytes (+0.54%) +135 bytes
38239 bytes +238 bytes (+0.63%) +167 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 30794 bytes -7207 bytes (-18.97%)
RAR (proprietary) RAR rar a -m5 -md64m -mc63:128t -mt1 32017 bytes -5984 bytes (-15.75%)
PPMd (Wikipedia) 7zip 7za a -mx=9 -m0=ppmd 33529 bytes -4472 bytes (-11.77%)
Brotli (Wikipedia) brotli brotli -q 11 34865 bytes -3136 bytes (-8.25%)
Burrows-Wheeler transform (Wikipedia) bzip2 bzip2 -9 35853 bytes -2148 bytes (-5.65%)
LZMA2 (Wikipedia) xz xz -9 36276 bytes -1725 bytes (-4.54%)
ZSTD (Wikipedia) zstd zstd -19 37227 bytes -774 bytes (-2.04%)

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