Choose a version:
14% The original file has 726186 bytes (709.2k) and is available from the project website.
There you can find the official minified version, too, which brings down the size to 99967 bytes (97.6k, 14%).

After GZIP compression these minified files vary in size:
Boot
  42184 bytes (41.2k)
CDN, direct link
Baidu
  37223 bytes (36.4k)
CDN, direct link
cdnjs
  37113 bytes (36.2k)
CDN, direct link
gzip -6 (default)
  36884 bytes (36.0k)
local copy
cdnhttps
  36863 bytes (36.0k)
CDN, direct link
Google
  36835 bytes (36.0k)
CDN, direct link
Yandex
  36820 bytes (36.0k)
CDN, direct link
gzip -9
  36820 bytes (36.0k)
local copy
jsdelivr
  36820 bytes (36.0k)
CDN, direct link
7zip -mx=9 -tgzip
  35721 bytes (34.9k)
local copy
libdeflate -12
  35709 bytes (34.9k)
local copy
kzip -s0 -rn -b0
  35708 bytes (34.9k)
local copy
pigz -11 -n
  35667 bytes (34.8k)
local copy
Zopfli
  35630 bytes (34.8k)
local copy
Zopfli (defluff)
  35629 bytes (34.8k)
local copy

perma-link to the smallest file on my server:
http://minime.stephan-brumme.com/files/angularjs/angular-1.2.8.min.js

You will automatically get the smallest AngularJS 1.2.8 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 1190 bytes by using my AngularJS 1.2.8 Zopfli version instead of the best available CDN (3.34% smaller than jsdelivr, 35630 vs. 36820 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 --mls32768 --bsr22 --lazy --ohh

(found November 26, 2015)
Description Value Parameter
iterations 100000  --i100000
maximum blocks 8  --mb8
maximum length score 32768  --mls32768
block splitting recursion 22  --bsr22
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 (35629 bytes).

Verify file integrity

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

MD5:
curl --silent --compressed https://code.angularjs.org/1.2.8/angular.min.js --location | md5sum
e23cb8c1bcad0c235a8e8ed68b15a88a  -
curl --silent --compressed http://minime.stephan-brumme.com/files/angularjs/angular-1.2.8.min.zopfli.js.gz | md5sum
e23cb8c1bcad0c235a8e8ed68b15a88a  -

SHA1:
curl --silent --compressed https://code.angularjs.org/1.2.8/angular.min.js --location | sha1sum
fa463ead5a48d21c33d22592351a2266fc457c8f  -
curl --silent --compressed http://minime.stephan-brumme.com/files/angularjs/angular-1.2.8.min.zopfli.js.gz | sha1sum
fa463ead5a48d21c33d22592351a2266fc457c8f  -

These CDNs send you the original file:
CDN Size (compressed) MD5 (uncompressed) Timestamp
Boot 42184 bytes e23cb8c1bcad0c235a8e8ed68b15a88a March 18, 2015 @ 10:40
cdnjs 37113 bytes e23cb8c1bcad0c235a8e8ed68b15a88a March 28, 2014 @ 15:15
cdnhttps 36863 bytes e23cb8c1bcad0c235a8e8ed68b15a88a December 24, 2015 @ 07:32
Google 36835 bytes e23cb8c1bcad0c235a8e8ed68b15a88a (invalid)
Yandex 36820 bytes e23cb8c1bcad0c235a8e8ed68b15a88a June 11, 2015 @ 14:17
jsdelivr 36820 bytes e23cb8c1bcad0c235a8e8ed68b15a88a August 7, 2014 @ 18:33

And some CDNs send you a different file:
CDN Size (compressed) MD5 (uncompressed) Comment / Diff Timestamp
Baidu 37223 bytes 018a4afb853e77c356b83b25ec4e26a4 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:

1.6.4, 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
35630 bytes -1 byte zopfli --i100000 --mls32768 --bsr22 --lazy --ohh November 26, 2015 @ 19:48
35631 bytes -2 bytes zopfli --i10000 --mls32768 --bsr22 --lazy --ohh October 21, 2015 @ 16:23
35633 bytes -1 byte zopfli --i10000 --mls8192 --bsr11 --lazy --ohh September 9, 2015 @ 22:39
35634 bytes -1 byte zopfli --i1000 --mls8192 --bsr12 --lazy --ohh September 7, 2015 @ 19:06
35635 bytes -6 bytes zopfli --i1000 --mls8192 --bsr11 --lazy --ohh September 7, 2015 @ 19:04
35641 bytes zopfli --i100 --mls8192 --bsr11 --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 June 16, 2016 @ 14:33.

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
35643 35644 35643 35662 35643 35648 35642 35643 35659 35657 35664 35641 35642 35653 35641
35640 35639 35658 35648 35641 35638 35645 35650 35660 35662 35655 35657 35646 35637 35634
35646 35647 35647 35642 35645 35645 35646 35644 35660 35646 35660 35643 35640 35637 35639
35645 35660 35661 35660 35660 35661 35660 35637 35661 35644 35647 35644 35641 35640 35643
35643 35645 35643 35639 35642 35639 35644 35640 35659 35646 35655 35643 35644 35636 35638
35639 35643 35643 35638 35637 35644 35644 35643 35659 35660 35660 35643 35646 35634 35639
35640 35640 35644 35644 35640 35645 35638 35638 35659 35657 35661 35642 35643 35639 35637
35637 35638 35660 35660 35640 35642 35636 35635 35654 35653 35654 35643 35633 35640 35636
35638 35641 35644 35645 35643 35642 35642 35637 35657 35660 35654 35644 35634 35640 35637
35642 35640 35648 35642 35643 35642 35642 35644 35659 35661 35654 35643 35642 35640 35639
35641 35637 35642 35641 35643 35644 35642 35663 35655 35661 35659 35644 35653 35640 35636
35645 35637 35649 35662 35640 35644 35645 35636 35660 35644 35659 35661 35642 35637 35644
35643 35642 35644 35643 35639 35639 35639 35638 35660 35640 35654 35643 35641 35634 35640
35643 35645 35642 35644 35644 35639 35639 35637 35660 35660 35654 35645 35642 35638 35636
35641 35640 35641 35644 35641 35639 35636 35636 35660 35660 35654 35656 35656 35654 35633
35640 35643 35642 35639 35642 35637 35637 35636 35660 35660 35657 35656 35642 35633 35636
35642 35641 35642 35641 35642 35644 35644 35641 35660 35661 35654 35645 35642 35633 35639
35643 35640 35644 35641 35641 35643 35642 35636 35660 35660 35655 35643 35643 35634 35640
35640 35641 35642 35640 35641 35644 35642 35660 35657 35660 35660 35642 35642 35634 35630
35640 35640 35660 35660 35641 35644 35644 35636 35635 35641 35654 35661 35640 35635 35638
35640 35639 35643 35640 35640 35644 35640 35641 35660 35654 35654 35643 35649 35640 35640
35640 35641 35644 35646 35642 35642 35644 35635 35655 35656 35654 35643 35644 35634 35640
35639 35639 35650 35641 35640 35644 35642 35641 35660 35660 35659 35645 35656 35634 35636

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 35637 bytes 100%
1,000 35633 bytes -4 bytes 100%
10,000 35631 bytes -2 bytes 100%
100,000 35630 bytes -1 byte 0.29%
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
35708 bytes +78 bytes (+0.22%)
35709 bytes +79 bytes (+0.22%) +1 byte
35732 bytes +102 bytes (+0.29%) +24 bytes
35754 bytes +124 bytes (+0.35%) +46 bytes
35790 bytes +160 bytes (+0.45%) +82 bytes
35803 bytes +173 bytes (+0.49%) +95 bytes
35771 bytes +141 bytes (+0.40%) +63 bytes
35792 bytes +162 bytes (+0.45%) +84 bytes
35814 bytes +184 bytes (+0.52%) +106 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 29121 bytes -6509 bytes (-18.27%)
RAR (proprietary) RAR rar a -m5 -md64m -mc63:128t -mt1 30092 bytes -5538 bytes (-15.54%)
PPMd (Wikipedia) 7zip 7za a -mx=9 -m0=ppmd 31359 bytes -4271 bytes (-11.99%)
Brotli (Wikipedia) brotli brotli -q 11 32829 bytes -2801 bytes (-7.86%)
Burrows-Wheeler transform (Wikipedia) bzip2 bzip2 -9 33767 bytes -1863 bytes (-5.23%)
LZMA2 (Wikipedia) xz xz -9 34176 bytes -1454 bytes (-4.08%)
ZSTD (Wikipedia) zstd zstd -19 35012 bytes -618 bytes (-1.73%)

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