Choose a version:
14% The original file has 724155 bytes (707.2k) and is available from the project website.
There you can find the official minified version, too, which brings down the size to 100023 bytes (97.7k, 14%).

After GZIP compression these minified files vary in size:
Boot
  42102 bytes (41.1k)
CDN, direct link
Baidu
  37142 bytes (36.3k)
CDN, direct link
cdnjs
  37023 bytes (36.2k)
CDN, direct link
gzip -6 (default)
  36805 bytes (35.9k)
local copy
cdnhttps
  36784 bytes (35.9k)
CDN, direct link
Google
  36749 bytes (35.9k)
CDN, direct link
gzip -9
  36748 bytes (35.9k)
local copy
Yandex
  36744 bytes (35.9k)
CDN, direct link
jsdelivr
  36744 bytes (35.9k)
CDN, direct link
libdeflate -12
  35645 bytes (34.8k)
local copy
7zip -mx=9 -tgzip
  35633 bytes (34.8k)
local copy
kzip -s0 -rn -b1
  35617 bytes (34.8k)
local copy
pigz -11 -n
  35566 bytes (34.7k)
local copy
Zopfli
  35545 bytes (34.7k)
local copy
Zopfli (defluff)
  35543 bytes (34.7k)
local copy

perma-link to the smallest file on my server:
http://minime.stephan-brumme.com/files/angularjs/angular-1.2.6.min.js

You will automatically get the smallest AngularJS 1.2.6 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 1199 bytes by using my AngularJS 1.2.6 Zopfli version instead of the best available CDN (3.37% smaller than jsdelivr, 35545 vs. 36744 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 --mls512 --bsr10 --lazy --ohh

(found November 26, 2015)
Description Value Parameter
iterations 100000  --i100000
maximum blocks 8  --mb8
maximum length score 512  --mls512
block splitting recursion 10  --bsr10
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 2 more bytes (35543 bytes).

Verify file integrity

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

MD5:
curl --silent --compressed https://code.angularjs.org/1.2.6/angular.min.js --location | md5sum
18af59e646a32d042fb4fde57bb2f175  -
curl --silent --compressed http://minime.stephan-brumme.com/files/angularjs/angular-1.2.6.min.zopfli.js.gz | md5sum
18af59e646a32d042fb4fde57bb2f175  -

SHA1:
curl --silent --compressed https://code.angularjs.org/1.2.6/angular.min.js --location | sha1sum
9076e9995a0bd8bffd5e7f8f1064e8d0bff15cf6  -
curl --silent --compressed http://minime.stephan-brumme.com/files/angularjs/angular-1.2.6.min.zopfli.js.gz | sha1sum
9076e9995a0bd8bffd5e7f8f1064e8d0bff15cf6  -

These CDNs send you the original file:
CDN Size (compressed) MD5 (uncompressed) Timestamp
Boot 42102 bytes 18af59e646a32d042fb4fde57bb2f175 March 18, 2015 @ 10:38
cdnjs 37023 bytes 18af59e646a32d042fb4fde57bb2f175 March 28, 2014 @ 15:15
cdnhttps 36784 bytes 18af59e646a32d042fb4fde57bb2f175 December 24, 2015 @ 07:32
Google 36749 bytes 18af59e646a32d042fb4fde57bb2f175 (invalid)
Yandex 36744 bytes 18af59e646a32d042fb4fde57bb2f175 June 11, 2015 @ 14:17
jsdelivr 36744 bytes 18af59e646a32d042fb4fde57bb2f175 August 7, 2014 @ 18:32

And some CDNs send you a different file:
CDN Size (compressed) MD5 (uncompressed) Comment / Diff Timestamp
Baidu 37142 bytes c5c7e8c303a9d1eed6213522a8250415 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
35545 bytes -1 byte zopfli --i100000 --mls512 --bsr10 --lazy --ohh November 26, 2015 @ 19:22
35546 bytes -4 bytes zopfli --i10000 --mls512 --bsr10 --lazy --ohh September 9, 2015 @ 23:37
35550 bytes -3 bytes zopfli --i1000 --mls512 --bsr10 --lazy --ohh September 7, 2015 @ 19:09
35553 bytes zopfli --i100 --mls8192 --bsr16 --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 @ 14:40.

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
35553 35554 35554 35554 35554 35555 35555 35557 35563 35553 35552 35559 35561 35568 35555
35559 35558 35557 35560 35555 35551 35551 35558 35557 35555 35554 35553 35561 35567 35560
35562 35562 35562 35564 35562 35562 35560 35558 35558 35558 35563 35558 35555 35558 35563
35556 35558 35558 35559 35559 35558 35556 35566 35556 35557 35554 35559 35554 35556 35560
35556 35556 35557 35559 35558 35559 35558 35559 35558 35554 35554 35559 35554 35551 35555
35556 35556 35557 35560 35555 35559 35558 35566 35558 35554 35555 35563 35562 35558 35555
35556 35558 35556 35559 35559 35559 35558 35558 35545 35554 35554 35564 35554 35553 35558
35561 35560 35555 35557 35559 35562 35559 35566 35557 35556 35555 35559 35555 35557 35555
35557 35562 35559 35559 35559 35558 35560 35559 35556 35553 35555 35554 35555 35558 35560
35561 35561 35555 35561 35559 35559 35558 35560 35558 35558 35553 35559 35552 35551 35554
35562 35560 35557 35560 35558 35559 35557 35567 35569 35553 35570 35558 35556 35559 35554
35561 35563 35559 35561 35559 35559 35556 35560 35558 35556 35555 35558 35551 35550 35559
35555 35556 35557 35558 35558 35558 35557 35567 35558 35553 35555 35558 35551 35557 35560
35558 35560 35556 35561 35559 35559 35558 35559 35558 35555 35555 35554 35554 35557 35559
35555 35561 35556 35560 35556 35559 35558 35559 35557 35558 35555 35550 35563 35578 35559
35558 35559 35558 35559 35555 35559 35558 35557 35558 35554 35555 35559 35561 35567 35560
35556 35560 35561 35561 35560 35561 35558 35560 35558 35554 35555 35558 35562 35552 35555
35557 35558 35556 35559 35559 35560 35557 35558 35557 35553 35565 35559 35555 35557 35560
35560 35557 35556 35559 35558 35555 35557 35559 35556 35558 35554 35558 35562 35559 35554
35562 35559 35558 35560 35559 35563 35560 35559 35558 35556 35553 35557 35561 35557 35554
35559 35562 35560 35558 35558 35556 35562 35566 35564 35557 35554 35559 35556 35558 35555
35561 35559 35556 35560 35560 35563 35556 35559 35565 35557 35555 35561 35556 35551 35555
35559 35558 35557 35560 35559 35557 35558 35567 35570 35556 35555 35559 35562 35555 35555

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 35553 bytes 100%
1,000 35550 bytes -3 bytes 100%
10,000 35546 bytes -4 bytes 100%
100,000 35545 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
35619 bytes +74 bytes (+0.21%) +2 bytes
35617 bytes +72 bytes (+0.20%)
35643 bytes +98 bytes (+0.28%) +26 bytes
35674 bytes +129 bytes (+0.36%) +57 bytes
35708 bytes +163 bytes (+0.46%) +91 bytes
35674 bytes +129 bytes (+0.36%) +57 bytes
35690 bytes +145 bytes (+0.41%) +73 bytes
35702 bytes +157 bytes (+0.44%) +85 bytes
35725 bytes +180 bytes (+0.51%) +108 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 28951 bytes -6594 bytes (-18.55%)
RAR (proprietary) RAR rar a -m5 -md64m -mc63:128t -mt1 30044 bytes -5501 bytes (-15.48%)
PPMd (Wikipedia) 7zip 7za a -mx=9 -m0=ppmd 31194 bytes -4351 bytes (-12.24%)
Brotli (Wikipedia) brotli brotli -q 11 32755 bytes -2790 bytes (-7.85%)
Burrows-Wheeler transform (Wikipedia) bzip2 bzip2 -9 33713 bytes -1832 bytes (-5.15%)
LZMA2 (Wikipedia) xz xz -9 34108 bytes -1437 bytes (-4.04%)
ZSTD (Wikipedia) zstd zstd -19 34932 bytes -613 bytes (-1.72%)

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