Choose a version:
19% The original file has 325415 bytes (317.8k) and is available from the project website.
There you can find the official minified version, too, which brings down the size to 62070 bytes (60.6k, 19%).

After GZIP compression these minified files vary in size:
Boot
  28083 bytes (27.4k)
CDN, direct link
Baidu
  25335 bytes (24.7k)
CDN, direct link
cdnjs
  25261 bytes (24.7k)
CDN, direct link
gzip -6 (default)
  25191 bytes (24.6k)
local copy
cdnhttps
  25169 bytes (24.6k)
CDN, direct link
gzip -9
  25143 bytes (24.6k)
local copy
libdeflate -12
  24736 bytes (24.2k)
local copy
7zip -mx=9 -tgzip
  24499 bytes (23.9k)
local copy
kzip -s0 -rn -b3
  24352 bytes (23.8k)
local copy
pigz -11 -n
  24327 bytes (23.8k)
local copy
Zopfli
  24303 bytes (23.7k)
local copy

perma-link to the smallest file on my server:
http://minime.stephan-brumme.com/files/angularjs/angular-0.9.13.min.js

You will automatically get the smallest AngularJS 0.9.13 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 866 bytes by using my AngularJS 0.9.13 Zopfli version instead of the best available CDN (3.56% smaller than cdnhttps, 24303 vs. 25169 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 --mls32 --bsr18 --lazy --ohh

(found February 5, 2016)
Description Value Parameter
iterations 100000  --i100000
maximum blocks 8  --mb8
maximum length score 32  --mls32
block splitting recursion 18  --bsr18
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/0.9.13/angular-0.9.13.min.js --location | md5sum
5bb2e6fc9fad465c5e36eb1d092ac30f  -
curl --silent --compressed http://minime.stephan-brumme.com/files/angularjs/angular-0.9.13.min.zopfli.js.gz | md5sum
5bb2e6fc9fad465c5e36eb1d092ac30f  -

SHA1:
curl --silent --compressed https://code.angularjs.org/0.9.13/angular-0.9.13.min.js --location | sha1sum
fcba8b17d97671bb1272b6f57dd6004f5fa08496  -
curl --silent --compressed http://minime.stephan-brumme.com/files/angularjs/angular-0.9.13.min.zopfli.js.gz | sha1sum
fcba8b17d97671bb1272b6f57dd6004f5fa08496  -

These CDNs send you the original file:
CDN Size (compressed) MD5 (uncompressed) Timestamp
Boot 28083 bytes 5bb2e6fc9fad465c5e36eb1d092ac30f March 18, 2015 @ 10:02
cdnjs 25261 bytes 5bb2e6fc9fad465c5e36eb1d092ac30f March 28, 2014 @ 14:15
cdnhttps 25169 bytes 5bb2e6fc9fad465c5e36eb1d092ac30f December 24, 2015 @ 07:32

And some CDNs send you a different file:
CDN Size (compressed) MD5 (uncompressed) Comment / Diff Timestamp
Baidu 25335 bytes 7a6450deed290cd41d72cd5ad3cecadf 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
24303 bytes -4 bytes zopfli --i100000 --mls32 --bsr18 --lazy --ohh February 5, 2016 @ 13:29
24307 bytes -4 bytes zopfli --i10000 --mls32 --bsr18 --lazy --ohh October 21, 2015 @ 12:54
24311 bytes -2 bytes zopfli --i1000 --mls32 --bsr18 --lazy --ohh September 20, 2015 @ 19:01
24313 bytes -2 bytes zopfli --i1000 --mls32768 --bsr10 --lazy --ohh September 17, 2015 @ 03:14
24315 bytes -1 byte zopfli --i1000 --mls2048 --bsr14 --lazy --ohh September 7, 2015 @ 22:18
24316 bytes -1 byte zopfli --i1000 --mls1024 --bsr11 --lazy --ohh September 7, 2015 @ 22:16
24317 bytes -1 byte zopfli --i1000 --mls512 --bsr12 --lazy --ohh September 7, 2015 @ 22:15
24318 bytes zopfli --i100 --mls2048 --bsr13 --lazy --ohh September 7, 2015 @ 16:15

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 @ 14:39.

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
24361 24360 24361 24364 24369 24372 24372 24374 24365 24314 24320 24324 24345 24338 24339
24320 24323 24324 24312 24311 24311 24316 24331 24329 24333 24326 24315 24331 24320 24328
24315 24314 24313 24315 24313 24315 24328 24328 24327 24324 24313 24312 24320 24328 24326
24314 24314 24313 24312 24313 24319 24317 24315 24313 24314 24316 24319 24312 24344 24312
24341 24339 24339 24336 24338 24336 24329 24331 24328 24315 24313 24323 24336 24320 24316
24338 24320 24310 24312 24311 24328 24313 24314 24317 24314 24323 24315 24315 24316 24314
24316 24319 24313 24311 24318 24315 24317 24330 24313 24319 24313 24314 24314 24316 24312
24312 24317 24313 24312 24316 24315 24314 24314 24312 24314 24313 24312 24317 24322 24318
24325 24317 24327 24315 24317 24316 24317 24315 24314 24312 24311 24313 24322 24319 24313
24324 24315 24327 24317 24320 24324 24319 24315 24314 24318 24311 24321 24321 24319 24318
24313 24314 24318 24314 24321 24322 24317 24315 24313 24315 24311 24320 24318 24319 24312
24314 24317 24321 24312 24310 24314 24314 24313 24313 24315 24319 24313 24315 24325 24314
24318 24313 24319 24316 24315 24316 24320 24327 24313 24314 24314 24317 24313 24314 24315
24318 24317 24310 24317 24316 24314 24316 24317 24314 24313 24310 24319 24318 24312 24317
24311 24317 24313 24312 24303 24315 24317 24313 24313 24314 24320 24311 24316 24320 24313
24311 24313 24310 24312 24316 24318 24313 24318 24312 24315 24311 24312 24314 24318 24312
24312 24311 24313 24311 24315 24315 24316 24317 24315 24312 24313 24317 24314 24319 24316
24316 24313 24315 24313 24313 24319 24316 24314 24315 24316 24316 24314 24320 24317 24316
24318 24315 24312 24312 24314 24316 24315 24315 24315 24317 24311 24312 24327 24320 24315
24317 24313 24311 24313 24316 24315 24316 24319 24315 24313 24315 24311 24314 24311 24315
24312 24314 24313 24312 24313 24318 24314 24315 24313 24316 24315 24316 24312 24320 24316
24312 24315 24310 24311 24311 24314 24317 24314 24313 24315 24311 24315 24315 24318 24315
24314 24313 24310 24312 24311 24315 24314 24314 24317 24313 24311 24310 24315 24321 24315

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 24315 bytes 100%
1,000 24311 bytes -4 bytes 100%
10,000 24307 bytes -4 bytes 100%
100,000 24303 bytes -4 bytes 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
24396 bytes +93 bytes (+0.38%) +44 bytes
24804 bytes +501 bytes (+2.06%) +452 bytes
24395 bytes +92 bytes (+0.38%) +43 bytes
24352 bytes +49 bytes (+0.20%)
24366 bytes +63 bytes (+0.26%) +14 bytes
24399 bytes +96 bytes (+0.40%) +47 bytes
24427 bytes +124 bytes (+0.51%) +75 bytes
24427 bytes +124 bytes (+0.51%) +75 bytes
24432 bytes +129 bytes (+0.53%) +80 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 21232 bytes -3071 bytes (-12.64%)
RAR (proprietary) RAR rar a -m5 -md64m -mc63:128t -mt1 21804 bytes -2499 bytes (-10.28%)
Brotli (Wikipedia) brotli brotli -q 11 22554 bytes -1749 bytes (-7.20%)
PPMd (Wikipedia) 7zip 7za a -mx=9 -m0=ppmd 22946 bytes -1357 bytes (-5.58%)
LZMA2 (Wikipedia) xz xz -9 23832 bytes -471 bytes (-1.94%)
Burrows-Wheeler transform (Wikipedia) bzip2 bzip2 -9 24412 bytes +109 bytes (+0.45%)
ZSTD (Wikipedia) zstd zstd -19 24546 bytes +243 bytes (+1.00%)

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