Choose a version:
13% The original file has 947758 bytes (925.5k) and is available from the project website.
There you can find the official minified version, too, which brings down the size to 124980 bytes (122.1k, 13%).

After GZIP compression these minified files vary in size:
Boot
  52694 bytes (51.5k)
CDN, direct link
Baidu
  46362 bytes (45.3k)
CDN, direct link
cdnjs
  46227 bytes (45.1k)
CDN, direct link
unpkg
  45917 bytes (44.8k)
CDN, direct link
gzip -6 (default)
  45908 bytes (44.8k)
local copy
cdnhttps
  45887 bytes (44.8k)
CDN, direct link
Google
  45853 bytes (44.8k)
CDN, direct link
Yandex
  45824 bytes (44.8k)
CDN, direct link
gzip -9
  45824 bytes (44.8k)
local copy
7zip -mx=9 -tgzip
  44459 bytes (43.4k)
local copy
kzip -s0 -rn -b0
  44416 bytes (43.4k)
local copy
libdeflate -12
  44392 bytes (43.4k)
local copy
pigz -11 -n
  44363 bytes (43.3k)
local copy
Zopfli
  44328 bytes (43.3k)
local copy

perma-link to the smallest file on my server:
http://minime.stephan-brumme.com/files/angularjs/angular-1.3.6.min.js

You will automatically get the smallest AngularJS 1.3.6 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 1496 bytes by using my AngularJS 1.3.6 Zopfli version instead of the best available CDN (3.37% smaller than Yandex, 44328 vs. 45824 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 --bsr23 --lazy --ohh

(found November 30, 2015)
Description Value Parameter
iterations 100000  --i100000
maximum blocks 8  --mb8
maximum length score 512  --mls512
block splitting recursion 23  --bsr23
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/1.3.6/angular.min.js --location | md5sum
fa392f1d76ff2c33fd9dde1aab24eedd  -
curl --silent --compressed http://minime.stephan-brumme.com/files/angularjs/angular-1.3.6.min.zopfli.js.gz | md5sum
fa392f1d76ff2c33fd9dde1aab24eedd  -

SHA1:
curl --silent --compressed https://code.angularjs.org/1.3.6/angular.min.js --location | sha1sum
134220552dcc830dea581a040bf0a35c79382c16  -
curl --silent --compressed http://minime.stephan-brumme.com/files/angularjs/angular-1.3.6.min.zopfli.js.gz | sha1sum
134220552dcc830dea581a040bf0a35c79382c16  -

These CDNs send you the original file:
CDN Size (compressed) MD5 (uncompressed) Timestamp
Boot 52694 bytes fa392f1d76ff2c33fd9dde1aab24eedd March 18, 2015 @ 11:05
cdnjs 46227 bytes fa392f1d76ff2c33fd9dde1aab24eedd December 18, 2014 @ 18:00
unpkg 45917 bytes fa392f1d76ff2c33fd9dde1aab24eedd July 11, 2016 @ 15:53
cdnhttps 45887 bytes fa392f1d76ff2c33fd9dde1aab24eedd December 24, 2015 @ 07:32
Google 45853 bytes fa392f1d76ff2c33fd9dde1aab24eedd December 9, 2014 @ 01:59
Yandex 45824 bytes fa392f1d76ff2c33fd9dde1aab24eedd June 11, 2015 @ 14:17

And some CDNs send you a different file:
CDN Size (compressed) MD5 (uncompressed) Comment / Diff Timestamp
Baidu 46362 bytes 7ee661ae9f7b4c32153b7b0597eb6103 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:

1.6.5, 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
44328 bytes -1 byte zopfli --i100000 --mls512 --bsr23 --lazy --ohh November 30, 2015 @ 10:15
44329 bytes -1 byte zopfli --i10000 --mls512 --bsr13 --lazy --ohh September 8, 2015 @ 07:35
44330 bytes -1 byte zopfli --i10000 --mls512 --bsr12 --lazy --ohh September 8, 2015 @ 07:25
44331 bytes -13 bytes zopfli --i1000 --mls512 --bsr12 --lazy --ohh September 7, 2015 @ 17:50
44344 bytes zopfli --i100 --mls8192 --bsr14 --lazy --ohh September 7, 2015 @ 16:19

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 @ 15:53.

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
44359 44360 44357 44364 44363 44359 44361 44358 44357 44348 44350 44360 44348 44346 44354
44359 44351 44353 44357 44359 44359 44349 44347 44335 44356 44347 44354 44349 44332 44368
44347 44340 44338 44341 44340 44340 44340 44339 44337 44336 44333 44330 44334 44332 44347
44358 44340 44334 44341 44338 44333 44334 44335 44330 44336 44343 44342 44330 44332 44334
44360 44345 44335 44340 44340 44338 44338 44336 44340 44335 44333 44331 44336 44333 44345
44366 44338 44355 44358 44340 44341 44339 44334 44336 44335 44333 44332 44334 44333 44371
44359 44339 44357 44340 44339 44338 44339 44338 44330 44336 44343 44335 44335 44332 44354
44353 44352 44337 44339 44353 44342 44340 44340 44330 44335 44333 44332 44330 44333 44349
44348 44340 44341 44339 44337 44332 44337 44334 44330 44336 44332 44332 44330 44328 44346
44345 44343 44338 44353 44340 44358 44334 44334 44328 44335 44332 44332 44331 44332 44346
44353 44339 44360 44352 44337 44338 44340 44334 44337 44334 44337 44331 44332 44328 44366
44348 44345 44334 44340 44334 44332 44333 44334 44330 44337 44332 44336 44332 44332 44339
44353 44356 44342 44338 44337 44338 44340 44335 44335 44336 44340 44332 44332 44332 44340
44351 44339 44337 44341 44337 44354 44340 44338 44330 44336 44332 44331 44332 44328 44347
44349 44366 44335 44354 44352 44356 44344 44355 44330 44335 44333 44332 44331 44332 44347
44345 44365 44354 44345 44347 44346 44345 44352 44339 44336 44331 44331 44332 44332 44346
44349 44346 44358 44347 44342 44358 44352 44334 44328 44336 44337 44331 44332 44332 44339
44349 44339 44337 44342 44337 44338 44340 44334 44339 44341 44335 44330 44331 44332 44345
44355 44355 44345 44340 44340 44337 44339 44335 44341 44335 44339 44329 44335 44333 44340
44357 44338 44338 44341 44341 44338 44338 44338 44328 44335 44336 44330 44331 44332 44350
44348 44352 44364 44346 44344 44353 44338 44334 44330 44335 44333 44333 44332 44332 44347
44343 44345 44335 44340 44338 44338 44339 44333 44330 44336 44336 44331 44331 44329 44338
44343 44345 44363 44340 44338 44337 44338 44339 44328 44335 44336 44331 44331 44333 44339

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 44344 bytes 100%
1,000 44330 bytes -14 bytes 100%
10,000 44329 bytes -1 byte 100%
100,000 44328 bytes -1 byte 2.61%
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
44416 bytes +88 bytes (+0.20%)
44417 bytes +89 bytes (+0.20%) +1 byte
44430 bytes +102 bytes (+0.23%) +14 bytes
44467 bytes +139 bytes (+0.31%) +51 bytes
44479 bytes +151 bytes (+0.34%) +63 bytes
44500 bytes +172 bytes (+0.39%) +84 bytes
44489 bytes +161 bytes (+0.36%) +73 bytes
44506 bytes +178 bytes (+0.40%) +90 bytes
44527 bytes +199 bytes (+0.45%) +111 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 35379 bytes -8949 bytes (-20.19%)
RAR (proprietary) RAR rar a -m5 -md64m -mc63:128t -mt1 37033 bytes -7295 bytes (-16.46%)
PPMd (Wikipedia) 7zip 7za a -mx=9 -m0=ppmd 38795 bytes -5533 bytes (-12.48%)
Brotli (Wikipedia) brotli brotli -q 11 40706 bytes -3622 bytes (-8.17%)
Burrows-Wheeler transform (Wikipedia) bzip2 bzip2 -9 41605 bytes -2723 bytes (-6.14%)
LZMA2 (Wikipedia) xz xz -9 42180 bytes -2148 bytes (-4.85%)
ZSTD (Wikipedia) zstd zstd -19 43303 bytes -1025 bytes (-2.31%)

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