Choose a version:
16% The original file has 551057 bytes (538.1k) and is available from the project website.
There you can find the official minified version, too, which brings down the size to 86301 bytes (84.3k, 16%).

After GZIP compression these minified files vary in size:
Boot
  36679 bytes (35.8k)
CDN, direct link
Baidu
  32530 bytes (31.8k)
CDN, direct link
cdnjs
  32433 bytes (31.7k)
CDN, direct link
gzip -6 (default)
  32275 bytes (31.5k)
local copy
Google
  32254 bytes (31.5k)
CDN, direct link
cdnhttps
  32254 bytes (31.5k)
CDN, direct link
gzip -9
  32220 bytes (31.5k)
local copy
Sina
  32217 bytes (31.5k)
CDN, direct link
7zip -mx=9 -tgzip
  31302 bytes (30.6k)
local copy
libdeflate -12
  31299 bytes (30.6k)
local copy
kzip -s0 -rn -b1
  31267 bytes (30.5k)
local copy
pigz -11 -n
  31233 bytes (30.5k)
local copy
Zopfli
  31208 bytes (30.5k)
local copy
Zopfli (defluff)
  31207 bytes (30.5k)
local copy

perma-link to the smallest file on my server:
http://minime.stephan-brumme.com/files/angularjs/angular-1.1.4.min.js

You will automatically get the smallest AngularJS 1.1.4 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 1009 bytes by using my AngularJS 1.1.4 Zopfli version instead of the best available CDN (3.23% smaller than Sina, 31208 vs. 32217 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 --mls1024 --bsr11 --lazy --ohh

(found November 26, 2015)
Description Value Parameter
iterations 100000  --i100000
maximum blocks 8  --mb8
maximum length score 1024  --mls1024
block splitting recursion 11  --bsr11
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 (31207 bytes).

Verify file integrity

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

MD5:
curl --silent --compressed https://code.angularjs.org/1.1.4/angular-1.1.4.min.js --location | md5sum
ee01bcfaa6db98d95e5dcd9d96ac552c  -
curl --silent --compressed http://minime.stephan-brumme.com/files/angularjs/angular-1.1.4.min.zopfli.js.gz | md5sum
ee01bcfaa6db98d95e5dcd9d96ac552c  -

SHA1:
curl --silent --compressed https://code.angularjs.org/1.1.4/angular-1.1.4.min.js --location | sha1sum
9a5dfda4c778f0ff5bb7d85cf3070ad541c9a71b  -
curl --silent --compressed http://minime.stephan-brumme.com/files/angularjs/angular-1.1.4.min.zopfli.js.gz | sha1sum
9a5dfda4c778f0ff5bb7d85cf3070ad541c9a71b  -

These CDNs send you the original file:
CDN Size (compressed) MD5 (uncompressed) Timestamp
Boot 36679 bytes ee01bcfaa6db98d95e5dcd9d96ac552c March 18, 2015 @ 10:18
cdnjs 32433 bytes ee01bcfaa6db98d95e5dcd9d96ac552c (invalid)
Google 32254 bytes ee01bcfaa6db98d95e5dcd9d96ac552c (invalid)
cdnhttps 32254 bytes ee01bcfaa6db98d95e5dcd9d96ac552c December 24, 2015 @ 07:32
Sina 32217 bytes ee01bcfaa6db98d95e5dcd9d96ac552c (invalid)

And some CDNs send you a different file:
CDN Size (compressed) MD5 (uncompressed) Comment / Diff Timestamp
Baidu 32530 bytes c9dfd51a8180b5dbdb6a24ee237a14e4 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
31208 bytes -1 byte zopfli --i100000 --mls1024 --bsr11 --lazy --ohh November 26, 2015 @ 17:56
31209 bytes -3 bytes zopfli --i10000 --mls1024 --bsr11 --lazy --ohh September 10, 2015 @ 03:49
31212 bytes -1 byte zopfli --i1000 --mls1024 --bsr11 --lazy --ohh September 7, 2015 @ 20:46
31213 bytes -9 bytes zopfli --i1000 --mls1024 --bsr8 --lazy --ohh September 7, 2015 @ 20:46
31222 bytes zopfli --i100 --mls1024 --bsr11 --lazy --ohh September 7, 2015 @ 16:09

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 @ 14:38.

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
31229 31229 31231 31229 31230 31229 31231 31232 31230 31221 31222 31228 31229 31235 31229
31228 31232 31232 31230 31232 31230 31228 31228 31228 31218 31233 31214 31235 31229 31229
31230 31230 31220 31225 31216 31222 31222 31222 31228 31219 31218 31226 31215 31231 31236
31229 31228 31229 31227 31229 31227 31228 31230 31229 31223 31223 31228 31215 31216 31217
31230 31227 31232 31232 31230 31227 31227 31229 31227 31213 31222 31229 31214 31228 31224
31229 31230 31228 31227 31228 31230 31228 31228 31228 31222 31222 31233 31214 31228 31229
31233 31228 31235 31231 31229 31229 31227 31228 31228 31223 31222 31227 31229 31229 31224
31230 31231 31233 31226 31228 31227 31230 31230 31228 31208 31218 31232 31215 31228 31235
31230 31227 31228 31227 31230 31227 31228 31229 31228 31212 31218 31233 31236 31227 31236
31229 31227 31236 31231 31229 31229 31227 31229 31228 31222 31217 31227 31233 31230 31238
31228 31228 31222 31229 31229 31228 31228 31228 31228 31228 31222 31229 31229 31228 31235
31228 31229 31229 31233 31229 31228 31230 31229 31228 31223 31222 31229 31216 31229 31215
31230 31232 31234 31227 31229 31227 31228 31229 31228 31219 31218 31225 31215 31228 31235
31229 31230 31233 31228 31228 31227 31228 31228 31228 31229 31217 31233 31214 31229 31224
31228 31228 31229 31233 31229 31227 31229 31228 31228 31222 31222 31229 31229 31228 31230
31231 31231 31228 31233 31229 31227 31227 31228 31228 31222 31222 31229 31229 31228 31235
31228 31229 31222 31228 31227 31228 31229 31228 31228 31222 31218 31227 31228 31229 31237
31229 31230 31234 31228 31229 31228 31227 31228 31228 31222 31222 31226 31228 31229 31236
31228 31228 31220 31229 31229 31229 31227 31228 31230 31220 31222 31233 31230 31228 31236
31231 31231 31235 31233 31229 31227 31228 31228 31228 31222 31222 31229 31217 31227 31238
31229 31229 31229 31232 31229 31227 31229 31228 31228 31222 31222 31233 31236 31228 31229
31228 31228 31227 31227 31227 31227 31227 31228 31228 31218 31217 31216 31230 31228 31235
31228 31228 31229 31229 31229 31230 31228 31228 31228 31228 31222 31226 31213 31228 31215

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 31222 bytes 100%
1,000 31212 bytes -10 bytes 100%
10,000 31209 bytes -3 bytes 100%
100,000 31208 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
31268 bytes +60 bytes (+0.19%) +1 byte
31267 bytes +59 bytes (+0.19%)
31290 bytes +82 bytes (+0.26%) +23 bytes
31303 bytes +95 bytes (+0.30%) +36 bytes
31315 bytes +107 bytes (+0.34%) +48 bytes
31342 bytes +134 bytes (+0.43%) +75 bytes
31308 bytes +100 bytes (+0.32%) +41 bytes
31325 bytes +117 bytes (+0.37%) +58 bytes
31358 bytes +150 bytes (+0.48%) +91 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 25957 bytes -5251 bytes (-16.83%)
RAR (proprietary) RAR rar a -m5 -md64m -mc63:128t -mt1 26629 bytes -4579 bytes (-14.67%)
PPMd (Wikipedia) 7zip 7za a -mx=9 -m0=ppmd 27647 bytes -3561 bytes (-11.41%)
Brotli (Wikipedia) brotli brotli -q 11 28707 bytes -2501 bytes (-8.01%)
Burrows-Wheeler transform (Wikipedia) bzip2 bzip2 -9 29765 bytes -1443 bytes (-4.62%)
LZMA2 (Wikipedia) xz xz -9 30036 bytes -1172 bytes (-3.76%)
ZSTD (Wikipedia) zstd zstd -19 30742 bytes -466 bytes (-1.49%)

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