Choose a version:
14% The original file has 726311 bytes (709.3k) and is available from the project website.
There you can find the official minified version, too, which brings down the size to 99983 bytes (97.6k, 14%).

After GZIP compression these minified files vary in size:
Boot
  42177 bytes (41.2k)
CDN, direct link
Baidu
  37224 bytes (36.4k)
CDN, direct link
cdnjs
  37115 bytes (36.2k)
CDN, direct link
gzip -6 (default)
  36883 bytes (36.0k)
local copy
cdnhttps
  36862 bytes (36.0k)
CDN, direct link
Google
  36832 bytes (36.0k)
CDN, direct link
gzip -9
  36818 bytes (36.0k)
local copy
Yandex
  36816 bytes (36.0k)
CDN, direct link
jsdelivr
  36816 bytes (36.0k)
CDN, direct link
7zip -mx=9 -tgzip
  35722 bytes (34.9k)
local copy
kzip -s0 -rn -b0
  35703 bytes (34.9k)
local copy
libdeflate -12
  35702 bytes (34.9k)
local copy
pigz -11 -n
  35660 bytes (34.8k)
local copy
Zopfli
  35626 bytes (34.8k)
local copy
Zopfli (defluff)
  35625 bytes (34.8k)
local copy

perma-link to the smallest file on my server:
http://minime.stephan-brumme.com/files/angularjs/angular-1.2.9.min.js

You will automatically get the smallest AngularJS 1.2.9 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 1.2.9 Zopfli version instead of the best available CDN (3.34% smaller than jsdelivr, 35626 vs. 36816 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 27, 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 (35625 bytes).

Verify file integrity

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

MD5:
curl --silent --compressed https://code.angularjs.org/1.2.9/angular.min.js --location | md5sum
1832cf173669c417d4c38dca54c69bc6  -
curl --silent --compressed http://minime.stephan-brumme.com/files/angularjs/angular-1.2.9.min.zopfli.js.gz | md5sum
1832cf173669c417d4c38dca54c69bc6  -

SHA1:
curl --silent --compressed https://code.angularjs.org/1.2.9/angular.min.js --location | sha1sum
49843959d473b6e7ce624f1e3fb79227d3b53517  -
curl --silent --compressed http://minime.stephan-brumme.com/files/angularjs/angular-1.2.9.min.zopfli.js.gz | sha1sum
49843959d473b6e7ce624f1e3fb79227d3b53517  -

These CDNs send you the original file:
CDN Size (compressed) MD5 (uncompressed) Timestamp
Boot 42177 bytes 1832cf173669c417d4c38dca54c69bc6 March 18, 2015 @ 10:40
cdnjs 37115 bytes 1832cf173669c417d4c38dca54c69bc6 March 28, 2014 @ 15:15
cdnhttps 36862 bytes 1832cf173669c417d4c38dca54c69bc6 December 24, 2015 @ 07:32
Google 36832 bytes 1832cf173669c417d4c38dca54c69bc6 (invalid)
Yandex 36816 bytes 1832cf173669c417d4c38dca54c69bc6 June 11, 2015 @ 14:17
jsdelivr 36816 bytes 1832cf173669c417d4c38dca54c69bc6 August 7, 2014 @ 18:33

And some CDNs send you a different file:
CDN Size (compressed) MD5 (uncompressed) Comment / Diff Timestamp
Baidu 37224 bytes 55b1f0335be088bcd06cd7514b911039 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:

1.6.5, 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
35626 bytes -1 byte zopfli --i100000 --mls32768 --bsr22 --lazy --ohh November 27, 2015 @ 16:27
35627 bytes -1 byte zopfli --i100000 --mls16384 --bsr30 --lazy --ohh November 26, 2015 @ 19:49
35628 bytes -2 bytes zopfli --i1000 --mls16384 --bsr30 --lazy --ohh September 24, 2015 @ 15:14
35630 bytes -2 bytes zopfli --i1000 --mls16384 --bsr13 --lazy --ohh September 17, 2015 @ 14:37
35632 bytes -2 bytes zopfli --i1000 --mls16384 --bsr6 --lazy --ohh September 17, 2015 @ 14:27
35634 bytes -2 bytes zopfli --i10000 --mls4096 --bsr6 --lazy --ohh September 9, 2015 @ 21:59
35636 bytes -2 bytes zopfli --i1000 --mls4096 --bsr13 --lazy --ohh September 7, 2015 @ 19:04
35638 bytes -2 bytes zopfli --i1000 --mls4096 --bsr6 --lazy --ohh September 7, 2015 @ 19:00
35640 bytes zopfli --i100 --mls1024 --bsr16 --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
35640 35641 35640 35659 35641 35638 35640 35657 35659 35654 35662 35642 35641 35648 35640
35648 35640 35638 35645 35635 35639 35642 35645 35658 35652 35651 35653 35653 35641 35631
35643 35642 35645 35633 35643 35642 35641 35639 35658 35643 35658 35634 35640 35630 35637
35639 35658 35658 35659 35659 35658 35658 35634 35658 35638 35644 35639 35633 35634 35637
35639 35640 35639 35635 35636 35637 35640 35639 35659 35652 35653 35640 35639 35633 35636
35637 35642 35640 35635 35637 35635 35639 35640 35657 35652 35658 35640 35648 35630 35633
35639 35658 35658 35637 35635 35639 35632 35640 35658 35652 35652 35640 35640 35638 35633
35641 35659 35639 35657 35637 35658 35640 35639 35652 35652 35652 35638 35639 35632 35637
35639 35640 35639 35637 35637 35639 35638 35638 35655 35640 35651 35638 35637 35633 35637
35638 35640 35645 35639 35638 35639 35638 35640 35658 35652 35652 35636 35638 35629 35636
35642 35640 35640 35636 35635 35639 35640 35658 35653 35652 35655 35639 35647 35633 35636
35640 35640 35645 35660 35635 35639 35640 35637 35658 35652 35653 35656 35638 35629 35633
35638 35640 35638 35639 35638 35639 35637 35635 35658 35638 35652 35638 35640 35633 35637
35639 35638 35640 35639 35637 35639 35632 35659 35658 35654 35652 35640 35640 35639 35636
35639 35638 35639 35636 35635 35634 35633 35637 35658 35655 35652 35656 35640 35632 35633
35639 35639 35639 35640 35636 35639 35633 35632 35658 35659 35656 35638 35646 35629 35637
35640 35636 35638 35636 35634 35639 35640 35637 35658 35658 35652 35641 35640 35634 35637
35639 35638 35639 35636 35636 35639 35640 35632 35658 35652 35652 35640 35639 35629 35637
35639 35640 35645 35640 35636 35639 35639 35637 35658 35655 35652 35639 35639 35629 35626
35636 35658 35638 35659 35635 35639 35638 35634 35658 35655 35652 35652 35638 35633 35637
35640 35639 35639 35640 35636 35639 35634 35639 35658 35654 35652 35652 35640 35633 35637
35639 35639 35641 35640 35636 35639 35640 35639 35640 35655 35653 35652 35640 35627 35636
35639 35636 35645 35639 35636 35639 35639 35639 35658 35658 35652 35659 35659 35627 35637

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 35634 bytes 100%
1,000 35628 bytes -6 bytes 100%
10,000 35628 bytes 100%
100,000 35626 bytes -2 bytes 0.87%
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
35703 bytes +77 bytes (+0.22%)
35704 bytes +78 bytes (+0.22%) +1 byte
35729 bytes +103 bytes (+0.29%) +26 bytes
35750 bytes +124 bytes (+0.35%) +47 bytes
35786 bytes +160 bytes (+0.45%) +83 bytes
35802 bytes +176 bytes (+0.49%) +99 bytes
35770 bytes +144 bytes (+0.40%) +67 bytes
35787 bytes +161 bytes (+0.45%) +84 bytes
35810 bytes +184 bytes (+0.52%) +107 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 29120 bytes -6506 bytes (-18.26%)
RAR (proprietary) RAR rar a -m5 -md64m -mc63:128t -mt1 30095 bytes -5531 bytes (-15.53%)
PPMd (Wikipedia) 7zip 7za a -mx=9 -m0=ppmd 31346 bytes -4280 bytes (-12.01%)
Brotli (Wikipedia) brotli brotli -q 11 32804 bytes -2822 bytes (-7.92%)
Burrows-Wheeler transform (Wikipedia) bzip2 bzip2 -9 33757 bytes -1869 bytes (-5.25%)
LZMA2 (Wikipedia) xz xz -9 34172 bytes -1454 bytes (-4.08%)
ZSTD (Wikipedia) zstd zstd -19 35010 bytes -616 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