Choose a version:
14% The original file has 789267 bytes (770.8k) and is available from the project website.
There you can find the official minified version, too, which brings down the size to 108028 bytes (105.5k, 14%).

After GZIP compression these minified files vary in size:
Boot
  45696 bytes (44.6k)
CDN, direct link
cdnjs
  41259 bytes (40.3k)
CDN, direct link
gzip -6 (default)
  40059 bytes (39.1k)
local copy
unpkg
  40044 bytes (39.1k)
CDN, direct link
cdnhttps
  40037 bytes (39.1k)
CDN, direct link
jsdelivr
  39996 bytes (39.1k)
CDN, direct link
Google
  39991 bytes (39.1k)
CDN, direct link
gzip -9
  39989 bytes (39.1k)
local copy
7zip -mx=9 -tgzip
  38742 bytes (37.8k)
local copy
kzip -s0 -rn -b0
  38739 bytes (37.8k)
local copy
libdeflate -12
  38716 bytes (37.8k)
local copy
pigz -11 -n
  38716 bytes (37.8k)
local copy
Zopfli
  38670 bytes (37.8k)
local copy
Zopfli (defluff)
  38669 bytes (37.8k)
local copy

perma-link to the smallest file on my server:
http://minime.stephan-brumme.com/files/angularjs/angular-1.2.28.min.js

You will automatically get the smallest AngularJS 1.2.28 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 1321 bytes by using my AngularJS 1.2.28 Zopfli version instead of the best available CDN (3.42% smaller than Google, 38670 vs. 39991 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 November 28, 2015)
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 (38669 bytes).

Verify file integrity

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

MD5:
curl --silent --compressed https://code.angularjs.org/1.2.28/angular.min.js --location | md5sum
c5d22c0a6f50fd66ac9ee980a2b7ac61  -
curl --silent --compressed http://minime.stephan-brumme.com/files/angularjs/angular-1.2.28.min.zopfli.js.gz | md5sum
c5d22c0a6f50fd66ac9ee980a2b7ac61  -

SHA1:
curl --silent --compressed https://code.angularjs.org/1.2.28/angular.min.js --location | sha1sum
828f4028829d2ab52aea75af1d59567a203fa3c1  -
curl --silent --compressed http://minime.stephan-brumme.com/files/angularjs/angular-1.2.28.min.zopfli.js.gz | sha1sum
828f4028829d2ab52aea75af1d59567a203fa3c1  -

All listed CDNs deliver identical contents:
CDN Size (compressed) MD5 (uncompressed) Timestamp
Boot 45696 bytes c5d22c0a6f50fd66ac9ee980a2b7ac61 March 18, 2015 @ 10:36
cdnjs 41259 bytes c5d22c0a6f50fd66ac9ee980a2b7ac61 December 18, 2014 @ 18:00
unpkg 40044 bytes c5d22c0a6f50fd66ac9ee980a2b7ac61 July 11, 2016 @ 15:54
cdnhttps 40037 bytes c5d22c0a6f50fd66ac9ee980a2b7ac61 December 24, 2015 @ 07:32
jsdelivr 39996 bytes c5d22c0a6f50fd66ac9ee980a2b7ac61 July 11, 2015 @ 17:43
Google 39991 bytes c5d22c0a6f50fd66ac9ee980a2b7ac61 December 16, 2014 @ 00:03

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
38670 bytes -1 byte zopfli --i100000 --mls128 --bsr16 --lazy --ohh November 28, 2015 @ 10:06
38671 bytes -1 byte zopfli --i100000 --mls2 --bsr6 --lazy --ohh November 28, 2015 @ 09:45
38672 bytes -1 byte zopfli --i10000 --mls2 --bsr6 --lazy --ohh October 13, 2015 @ 22:42
38673 bytes -1 byte zopfli --i10000 --mls4096 --bsr10 --lazy --ohh September 9, 2015 @ 09:20
38674 bytes -2 bytes zopfli --i10000 --mls2048 --bsr13 --lazy --ohh September 9, 2015 @ 09:04
38676 bytes -1 byte zopfli --i1000 --mls8192 --bsr4 --lazy --ohh September 7, 2015 @ 19:25
38677 bytes -3 bytes zopfli --i1000 --mls4096 --bsr13 --lazy --ohh September 7, 2015 @ 19:24
38680 bytes zopfli --i100 --mls4096 --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 July 11, 2016 @ 15:54.

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
38678 38678 38677 38679 38679 38680 38680 38681 38687 38684 38690 38684 38686 38684 38675
38687 38688 38685 38686 38687 38688 38688 38687 38683 38687 38688 38685 38674 38684 38684
38671 38673 38673 38686 38677 38677 38674 38676 38677 38682 38678 38678 38684 38683 38684
38677 38678 38677 38677 38676 38674 38674 38687 38676 38679 38689 38674 38674 38678 38674
38680 38678 38680 38680 38677 38673 38674 38674 38684 38680 38679 38681 38683 38682 38675
38685 38684 38693 38681 38679 38694 38673 38692 38686 38692 38676 38683 38674 38683 38681
38677 38684 38673 38691 38690 38689 38688 38695 38690 38692 38689 38673 38674 38683 38681
38675 38677 38676 38678 38693 38695 38674 38688 38692 38692 38690 38692 38682 38682 38688
38677 38674 38676 38673 38674 38674 38674 38689 38684 38681 38690 38674 38674 38683 38683
38674 38673 38676 38678 38674 38676 38673 38676 38684 38682 38674 38673 38682 38683 38674
38678 38673 38677 38676 38675 38676 38674 38681 38684 38682 38678 38684 38683 38683 38673
38678 38677 38677 38677 38677 38674 38674 38685 38676 38682 38676 38675 38675 38683 38676
38681 38680 38694 38716 38699 38694 38670 38694 38683 38680 38675 38685 38684 38683 38687
38678 38678 38708 38690 38707 38709 38675 38688 38682 38692 38694 38691 38674 38683 38674
38674 38676 38678 38677 38676 38677 38675 38677 38673 38682 38689 38674 38674 38682 38674
38677 38673 38679 38678 38677 38673 38674 38686 38684 38681 38690 38673 38682 38682 38675
38678 38678 38677 38679 38677 38674 38675 38676 38676 38683 38685 38679 38674 38684 38681
38674 38677 38677 38673 38674 38673 38682 38687 38684 38681 38685 38681 38674 38685 38687
38687 38674 38676 38673 38673 38674 38674 38676 38686 38681 38689 38674 38675 38682 38673
38676 38674 38677 38674 38681 38674 38674 38685 38677 38681 38673 38691 38674 38683 38685
38674 38675 38673 38680 38673 38674 38674 38688 38683 38681 38690 38681 38674 38683 38681
38674 38673 38676 38673 38676 38676 38675 38685 38683 38681 38674 38686 38674 38682 38682
38678 38677 38676 38673 38677 38673 38674 38681 38685 38680 38686 38673 38674 38682 38683

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 38676 bytes 100%
1,000 38674 bytes -2 bytes 100%
10,000 38672 bytes -2 bytes 100%
100,000 38670 bytes -2 bytes 0.58%
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
38739 bytes +69 bytes (+0.18%)
38741 bytes +71 bytes (+0.18%) +2 bytes
38765 bytes +95 bytes (+0.25%) +26 bytes
38795 bytes +125 bytes (+0.32%) +56 bytes
38832 bytes +162 bytes (+0.42%) +93 bytes
38854 bytes +184 bytes (+0.48%) +115 bytes
38816 bytes +146 bytes (+0.38%) +77 bytes
38800 bytes +130 bytes (+0.34%) +61 bytes
38818 bytes +148 bytes (+0.38%) +79 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 31265 bytes -7405 bytes (-19.15%)
RAR (proprietary) RAR rar a -m5 -md64m -mc63:128t -mt1 32561 bytes -6109 bytes (-15.80%)
PPMd (Wikipedia) 7zip 7za a -mx=9 -m0=ppmd 34091 bytes -4579 bytes (-11.84%)
Brotli (Wikipedia) brotli brotli -q 11 35442 bytes -3228 bytes (-8.35%)
Burrows-Wheeler transform (Wikipedia) bzip2 bzip2 -9 36475 bytes -2195 bytes (-5.68%)
LZMA2 (Wikipedia) xz xz -9 36904 bytes -1766 bytes (-4.57%)
ZSTD (Wikipedia) zstd zstd -19 37867 bytes -803 bytes (-2.08%)

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