Choose a version:
13% The original file has 1218898 bytes (1,190.3k) and is available from the project website.
There you can find the official minified version, too, which brings down the size to 163184 bytes (159.4k, 13%).

After GZIP compression these minified files vary in size:
Boot
  66259 bytes (64.7k)
CDN, direct link
cdnjs
  57898 bytes (56.5k)
CDN, direct link
gzip -6 (default)
  57477 bytes (56.1k)
local copy
unpkg
  57451 bytes (56.1k)
CDN, direct link
Google
  57434 bytes (56.1k)
CDN, direct link
gzip -9
  57366 bytes (56.0k)
local copy
7zip -mx=9 -tgzip
  55626 bytes (54.3k)
local copy
libdeflate -12
  55626 bytes (54.3k)
local copy
kzip -s0 -rn -b1
  55601 bytes (54.3k)
local copy
pigz -11 -n
  55525 bytes (54.2k)
local copy
Zopfli
  55451 bytes (54.2k)
local copy
Zopfli (defluff)
  55449 bytes (54.1k)
local copy

perma-link to the smallest file on my server:
http://minime.stephan-brumme.com/files/angularjs/angular-1.5.10.min.js

You will automatically get the smallest AngularJS 1.5.10 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 1983 bytes by using my AngularJS 1.5.10 Zopfli version instead of the best available CDN (3.58% smaller than Google, 55451 vs. 57434 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 --i1000000 --mb8 --mls16384 --bsr22 --lazy --ohh

(found December 17, 2016)
Description Value Parameter
iterations 1000000  --i1000000
maximum blocks 8  --mb8
maximum length score 16384  --mls16384
block splitting recursion 22  --bsr22
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 (55449 bytes).

Verify file integrity

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

MD5:
curl --silent --compressed https://code.angularjs.org/1.5.10/angular.min.js --location | md5sum
9eec1fa808717223304913198e11319c  -
curl --silent --compressed http://minime.stephan-brumme.com/files/angularjs/angular-1.5.10.min.zopfli.js.gz | md5sum
9eec1fa808717223304913198e11319c  -

SHA1:
curl --silent --compressed https://code.angularjs.org/1.5.10/angular.min.js --location | sha1sum
185e7e3502497521410a474df154bcd833dc6836  -
curl --silent --compressed http://minime.stephan-brumme.com/files/angularjs/angular-1.5.10.min.zopfli.js.gz | sha1sum
185e7e3502497521410a474df154bcd833dc6836  -

All listed CDNs deliver identical contents:
CDN Size (compressed) MD5 (uncompressed) Timestamp
Boot 66259 bytes 9eec1fa808717223304913198e11319c December 18, 2016 @ 12:16
cdnjs 57898 bytes 9eec1fa808717223304913198e11319c December 16, 2016 @ 15:33
unpkg 57451 bytes 9eec1fa808717223304913198e11319c December 19, 2016 @ 16:07
Google 57434 bytes 9eec1fa808717223304913198e11319c December 16, 2016 @ 20:25

Note: only the MD5 hashes are shown to keep things simple.

Other Versions

Available AngularJS versions at minime.stephan-brumme.com:

1.6.6, 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
55451 bytes -3 bytes zopfli --i1000000 --mls16384 --bsr22 --lazy --ohh December 17, 2016 @ 00:00
55454 bytes -3 bytes zopfli --i100000 --mls16384 --bsr22 --lazy --ohh December 16, 2016 @ 15:50
55457 bytes -3 bytes zopfli --i10000 --mls16384 --bsr22 --lazy --ohh December 16, 2016 @ 14:45
55460 bytes -20 bytes zopfli --i1000 --mls16384 --bsr22 --lazy --ohh December 16, 2016 @ 14:36
55480 bytes zopfli --i100 --mls16384 --bsr22 --lazy --ohh December 16, 2016 @ 14:24

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

Most recent activity on January 25, 2017 @ 15:22.

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, 100,000 or 1,000,000.
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
55521 55532 55533 55522 55521 55521 55517 55522 55524 55525 55494 55495 55506 55514 55520
55525 55512 55513 55516 55498 55502 55505 55503 55499 55500 55501 55503 55501 55501 55509
55514 55511 55507 55508 55503 55501 55498 55501 55501 55492 55501 55502 55503 55501 55507
55515 55499 55492 55481 55497 55495 55510 55501 55501 55509 55510 55490 55500 55469 55518
55510 55512 55508 55504 55498 55503 55499 55506 55504 55494 55491 55489 55495 55511 55492
55505 55512 55504 55507 55497 55501 55509 55503 55500 55492 55501 55501 55502 55471 55513
55510 55518 55508 55509 55504 55498 55509 55489 55503 55501 55503 55488 55500 55462 55513
55507 55515 55515 55518 55511 55499 55511 55504 55494 55501 55501 55491 55502 55470 55501
55516 55515 55504 55507 55510 55502 55489 55504 55500 55502 55501 55503 55500 55468 55512
55508 55518 55509 55506 55503 55501 55511 55505 55500 55501 55501 55490 55502 55500 55512
55516 55518 55509 55509 55498 55506 55497 55505 55499 55491 55501 55488 55490 55491 55514
55520 55515 55509 55519 55501 55509 55511 55504 55501 55493 55501 55502 55502 55471 55515
55501 55505 55503 55503 55499 55500 55502 55502 55502 55501 55501 55489 55502 55475 55496
55512 55514 55509 55505 55507 55500 55501 55504 55503 55491 55502 55490 55495 55491 55489
55509 55513 55509 55508 55508 55511 55511 55505 55501 55502 55501 55489 55502 55491 55516
55508 55519 55508 55508 55503 55507 55511 55502 55500 55502 55501 55489 55500 55472 55488
55518 55515 55511 55504 55498 55498 55508 55504 55500 55492 55501 55489 55502 55466 55499
55509 55516 55508 55511 55498 55495 55507 55506 55500 55492 55501 55503 55500 55491 55516
55510 55507 55508 55503 55498 55498 55508 55505 55500 55492 55501 55489 55500 55451 55499
55509 55520 55508 55507 55509 55509 55510 55502 55500 55492 55501 55489 55489 55491 55496
55510 55511 55507 55503 55499 55501 55499 55492 55494 55502 55502 55502 55501 55468 55496
55502 55513 55504 55505 55498 55499 55501 55506 55489 55501 55501 55503 55502 55472 55488
55508 55503 55510 55509 55502 55495 55495 55496 55495 55484 55501 55489 55489 55472 55499

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 55480 bytes 100%
1,000 55460 bytes -20 bytes 100%
10,000 55457 bytes -3 bytes 100%
100,000 55454 bytes -3 bytes 0.87%
1,000,000 55451 bytes -3 bytes 0.29%
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
55601 bytes +150 bytes (+0.27%)
55601 bytes +150 bytes (+0.27%)
55608 bytes +157 bytes (+0.28%) +7 bytes
55613 bytes +162 bytes (+0.29%) +12 bytes
55627 bytes +176 bytes (+0.32%) +26 bytes
55633 bytes +182 bytes (+0.33%) +32 bytes
55631 bytes +180 bytes (+0.32%) +30 bytes
55657 bytes +206 bytes (+0.37%) +56 bytes
55681 bytes +230 bytes (+0.41%) +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 43047 bytes -12404 bytes (-22.37%)
RAR (proprietary) RAR rar a -m5 -md64m -mc63:128t -mt1 45411 bytes -10040 bytes (-18.11%)
PPMd (Wikipedia) 7zip 7za a -mx=9 -m0=ppmd 47015 bytes -8436 bytes (-15.21%)
Brotli (Wikipedia) brotli brotli -q 11 50392 bytes -5059 bytes (-9.12%)
Burrows-Wheeler transform (Wikipedia) bzip2 bzip2 -9 51187 bytes -4264 bytes (-7.69%)
LZMA2 (Wikipedia) xz xz -9 51928 bytes -3523 bytes (-6.35%)
ZSTD (Wikipedia) zstd zstd -19 53426 bytes -2025 bytes (-3.65%)

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