Choose a version:
13% The original file has 937001 bytes (915.0k) and is available from the project website.
There you can find the official minified version, too, which brings down the size to 124229 bytes (121.3k, 13%).

After GZIP compression these minified files vary in size:
Boot
  52315 bytes (51.1k)
CDN, direct link
unpkg
  50828 bytes (49.6k)
CDN, direct link
Baidu
  46019 bytes (44.9k)
CDN, direct link
cdnjs
  45888 bytes (44.8k)
CDN, direct link
gzip -6 (default)
  45591 bytes (44.5k)
local copy
cdnhttps
  45570 bytes (44.5k)
CDN, direct link
Google
  45537 bytes (44.5k)
CDN, direct link
Yandex
  45511 bytes (44.4k)
CDN, direct link
gzip -9
  45504 bytes (44.4k)
local copy
libdeflate -12
  44158 bytes (43.1k)
local copy
7zip -mx=9 -tgzip
  44148 bytes (43.1k)
local copy
kzip -s0 -rn -b0
  44108 bytes (43.1k)
local copy
pigz -11 -n
  44051 bytes (43.0k)
local copy
Zopfli
  44013 bytes (43.0k)
local copy
Zopfli (defluff)
  44012 bytes (43.0k)
local copy

perma-link to the smallest file on my server:
http://minime.stephan-brumme.com/files/angularjs/angular-1.3.3.min.js

You will automatically get the smallest AngularJS 1.3.3 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 1498 bytes by using my AngularJS 1.3.3 Zopfli version instead of the best available CDN (3.40% smaller than Yandex, 44013 vs. 45511 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 --mls256 --bsr16 --lazy --ohh

(found November 30, 2015)
Description Value Parameter
iterations 100000  --i100000
maximum blocks 8  --mb8
maximum length score 256  --mls256
block splitting recursion 16  --bsr16
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 (44012 bytes).

Verify file integrity

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

MD5:
curl --silent --compressed https://code.angularjs.org/1.3.3/angular.min.js --location | md5sum
665c746466daaea58d7cb953f498dafe  -
curl --silent --compressed http://minime.stephan-brumme.com/files/angularjs/angular-1.3.3.min.zopfli.js.gz | md5sum
665c746466daaea58d7cb953f498dafe  -

SHA1:
curl --silent --compressed https://code.angularjs.org/1.3.3/angular.min.js --location | sha1sum
bd87c1ed653d0b992721c487a54a98cb5b5e6488  -
curl --silent --compressed http://minime.stephan-brumme.com/files/angularjs/angular-1.3.3.min.zopfli.js.gz | sha1sum
bd87c1ed653d0b992721c487a54a98cb5b5e6488  -

These CDNs send you the original file:
CDN Size (compressed) MD5 (uncompressed) Timestamp
Boot 52315 bytes 665c746466daaea58d7cb953f498dafe March 18, 2015 @ 11:03
unpkg 50828 bytes 665c746466daaea58d7cb953f498dafe July 11, 2016 @ 15:54
cdnjs 45888 bytes 665c746466daaea58d7cb953f498dafe November 21, 2014 @ 05:00
cdnhttps 45570 bytes 665c746466daaea58d7cb953f498dafe December 24, 2015 @ 07:32
Google 45537 bytes 665c746466daaea58d7cb953f498dafe November 18, 2014 @ 20:27
Yandex 45511 bytes 665c746466daaea58d7cb953f498dafe June 11, 2015 @ 14:17

And some CDNs send you a different file:
CDN Size (compressed) MD5 (uncompressed) Comment / Diff Timestamp
Baidu 46019 bytes 1044562ee23baf27e13963362f0ac8ff only whitespaces differ April 3, 2015 @ 04:57

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
44013 bytes -2 bytes zopfli --i100000 --mls256 --bsr16 --lazy --ohh November 30, 2015 @ 10:52
44015 bytes -4 bytes zopfli --i10000 --mls256 --bsr16 --lazy --ohh October 13, 2015 @ 20:53
44019 bytes -1 byte zopfli --i1000 --mls256 --bsr14 --lazy --ohh September 12, 2015 @ 14:39
44020 bytes -3 bytes zopfli --i10000 --mls8192 --bsr12 --lazy --ohh September 9, 2015 @ 05:14
44023 bytes -1 byte zopfli --i10000 --mls4096 --bsr16 --lazy --ohh September 9, 2015 @ 05:10
44024 bytes -1 byte zopfli --i1000 --mls8192 --bsr11 --lazy --ohh September 7, 2015 @ 18:06
44025 bytes -2 bytes zopfli --i1000 --mls8192 --bsr8 --lazy --ohh September 7, 2015 @ 18:06
44027 bytes zopfli --i100 --mls8192 --bsr12 --lazy --ohh September 7, 2015 @ 16:21

If there are multiple parameter sets yielding the same compressed size, only the first one found is shown.

Most recent activity on July 11, 2016 @ 15:54.

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
44063 44056 44064 44050 44051 44051 44047 44044 44049 44053 44052 44049 44045 44043 44032
44064 44066 44065 44064 44064 44064 44053 44059 44046 44052 44047 44047 44061 44037 44058
44061 44054 44065 44051 44059 44061 44044 44024 44035 44026 44029 44021 44020 44017 44037
44028 44033 44051 44062 44027 44061 44025 44017 44037 44030 44029 44022 44018 44017 44020
44061 44028 44060 44039 44049 44060 44055 44036 44031 44028 44029 44033 44021 44025 44033
44055 44046 44066 44064 44045 44059 44051 44036 44038 44027 44031 44029 44027 44028 44034
44057 44055 44054 44044 44053 44056 44053 44027 44041 44029 44029 44024 44029 44020 44025
44056 44060 44036 44062 44059 44054 44066 44056 44035 44023 44026 44024 44020 44023 44051
44055 44060 44061 44047 44067 44053 44052 44040 44036 44029 44032 44024 44020 44030 44033
44057 44052 44047 44056 44054 44054 44050 44042 44037 44028 44029 44030 44020 44018 44033
44057 44036 44068 44059 44068 44062 44050 44013 44037 44033 44036 44033 44020 44020 44032
44027 44027 44056 44047 44028 44028 44025 44017 44035 44031 44029 44023 44034 44017 44033
44056 44056 44062 44047 44044 44056 44017 44013 44036 44025 44030 44023 44029 44018 44027
44055 44056 44051 44062 44042 44056 44052 44041 44036 44025 44025 44026 44022 44020 44056
44056 44057 44063 44042 44053 44056 44040 44040 44036 44026 44029 44023 44022 44022 44057
44055 44028 44049 44059 44068 44059 44053 44059 44036 44047 44044 44046 44020 44022 44058
44058 44055 44065 44062 44064 44059 44053 44056 44035 44022 44034 44024 44026 44020 44035
44027 44056 44060 44029 44028 44054 44036 44036 44035 44026 44035 44027 44022 44019 44033
44031 44030 44036 44027 44030 44054 44064 44014 44035 44026 44029 44028 44037 44030 44036
44056 44064 44060 44060 44055 44059 44055 44017 44036 44023 44026 44025 44030 44021 44033
44054 44062 44065 44062 44057 44059 44051 44040 44037 44026 44027 44023 44028 44017 44057
44027 44032 44062 44061 44035 44056 44018 44026 44035 44025 44027 44022 44020 44020 44035
44060 44060 44060 44056 44062 44059 44063 44017 44036 44027 44027 44024 44026 44024 44034

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 44025 bytes 100%
1,000 44019 bytes -6 bytes 100%
10,000 44015 bytes -4 bytes 100%
100,000 44013 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
44108 bytes +95 bytes (+0.22%)
44110 bytes +97 bytes (+0.22%) +2 bytes
44133 bytes +120 bytes (+0.27%) +25 bytes
44158 bytes +145 bytes (+0.33%) +50 bytes
44176 bytes +163 bytes (+0.37%) +68 bytes
44200 bytes +187 bytes (+0.42%) +92 bytes
44177 bytes +164 bytes (+0.37%) +69 bytes
44187 bytes +174 bytes (+0.40%) +79 bytes
44223 bytes +210 bytes (+0.48%) +115 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 35093 bytes -8920 bytes (-20.27%)
RAR (proprietary) RAR rar a -m5 -md64m -mc63:128t -mt1 36736 bytes -7277 bytes (-16.53%)
PPMd (Wikipedia) 7zip 7za a -mx=9 -m0=ppmd 38473 bytes -5540 bytes (-12.59%)
Brotli (Wikipedia) brotli brotli -q 11 40447 bytes -3566 bytes (-8.10%)
Burrows-Wheeler transform (Wikipedia) bzip2 bzip2 -9 41253 bytes -2760 bytes (-6.27%)
LZMA2 (Wikipedia) xz xz -9 41904 bytes -2109 bytes (-4.79%)
ZSTD (Wikipedia) zstd zstd -19 43007 bytes -1006 bytes (-2.29%)

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