Choose a version:
13% The original file has 952626 bytes (930.3k) and is available from the project website.
There you can find the official minified version, too, which brings down the size to 125526 bytes (122.6k, 13%).

After GZIP compression these minified files vary in size:
Boot
  52879 bytes (51.6k)
CDN, direct link
Baidu
  46553 bytes (45.5k)
CDN, direct link
cdnjs
  46420 bytes (45.3k)
CDN, direct link
unpkg
  46129 bytes (45.0k)
CDN, direct link
gzip -6 (default)
  46103 bytes (45.0k)
local copy
cdnhttps
  46081 bytes (45.0k)
CDN, direct link
Google
  46052 bytes (45.0k)
CDN, direct link
Yandex
  46012 bytes (44.9k)
CDN, direct link
gzip -9
  46007 bytes (44.9k)
local copy
7zip -mx=9 -tgzip
  44651 bytes (43.6k)
local copy
libdeflate -12
  44630 bytes (43.6k)
local copy
kzip -s0 -rn -b0
  44610 bytes (43.6k)
local copy
pigz -11 -n
  44539 bytes (43.5k)
local copy
Zopfli
  44510 bytes (43.5k)
local copy
Zopfli (defluff)
  44509 bytes (43.5k)
local copy

perma-link to the smallest file on my server:
http://minime.stephan-brumme.com/files/angularjs/angular-1.3.12.min.js

You will automatically get the smallest AngularJS 1.3.12 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 1502 bytes by using my AngularJS 1.3.12 Zopfli version instead of the best available CDN (3.37% smaller than Yandex, 44510 vs. 46012 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 --bsr8 --lazy --ohh

(found November 30, 2015)
Description Value Parameter
iterations 100000  --i100000
maximum blocks 8  --mb8
maximum length score 1024  --mls1024
block splitting recursion 8  --bsr8
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 (44509 bytes).

Verify file integrity

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

MD5:
curl --silent --compressed https://code.angularjs.org/1.3.12/angular.min.js --location | md5sum
494e6d08a351fe84bf82abc2d77b4fbe  -
curl --silent --compressed http://minime.stephan-brumme.com/files/angularjs/angular-1.3.12.min.zopfli.js.gz | md5sum
494e6d08a351fe84bf82abc2d77b4fbe  -

SHA1:
curl --silent --compressed https://code.angularjs.org/1.3.12/angular.min.js --location | sha1sum
924fb737d63a83a0c56d97d6f16ed4298286ad75  -
curl --silent --compressed http://minime.stephan-brumme.com/files/angularjs/angular-1.3.12.min.zopfli.js.gz | sha1sum
924fb737d63a83a0c56d97d6f16ed4298286ad75  -

These CDNs send you the original file:
CDN Size (compressed) MD5 (uncompressed) Timestamp
Boot 52879 bytes 494e6d08a351fe84bf82abc2d77b4fbe March 18, 2015 @ 10:59
cdnjs 46420 bytes 494e6d08a351fe84bf82abc2d77b4fbe February 4, 2015 @ 02:00
unpkg 46129 bytes 494e6d08a351fe84bf82abc2d77b4fbe July 11, 2016 @ 15:53
cdnhttps 46081 bytes 494e6d08a351fe84bf82abc2d77b4fbe December 24, 2015 @ 07:32
Google 46052 bytes 494e6d08a351fe84bf82abc2d77b4fbe February 3, 2015 @ 23:06
Yandex 46012 bytes 494e6d08a351fe84bf82abc2d77b4fbe June 11, 2015 @ 14:17

And some CDNs send you a different file:
CDN Size (compressed) MD5 (uncompressed) Comment / Diff Timestamp
Baidu 46553 bytes 2ab9f9404ca863c6e7025988ef6a9d1f 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
44510 bytes -2 bytes zopfli --i100000 --mls1024 --bsr8 --lazy --ohh November 30, 2015 @ 15:19
44512 bytes -1 byte zopfli --i100000 --mls4096 --bsr16 --lazy --ohh November 30, 2015 @ 13:50
44513 bytes -1 byte zopfli --i10000 --mls1024 --bsr8 --lazy --ohh September 9, 2015 @ 01:18
44514 bytes -2 bytes zopfli --i1000 --mls4096 --bsr16 --lazy --ohh September 7, 2015 @ 18:43
44516 bytes -3 bytes zopfli --i1000 --mls8192 --bsr13 --lazy --ohh September 7, 2015 @ 18:42
44519 bytes -1 byte zopfli --i1000 --mls1024 --bsr8 --lazy --ohh September 7, 2015 @ 18:38
44520 bytes zopfli --i100 --mls2048 --bsr14 --lazy --ohh September 7, 2015 @ 16:30

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
44546 44546 44544 44545 44547 44546 44538 44535 44536 44543 44539 44538 44546 44540 44533
44548 44547 44548 44541 44540 44538 44539 44539 44537 44538 44524 44519 44533 44519 44559
44534 44529 44533 44537 44536 44533 44528 44529 44518 44517 44522 44519 44519 44514 44536
44532 44533 44536 44542 44531 44542 44529 44527 44531 44517 44520 44514 44524 44519 44540
44523 44532 44550 44550 44535 44530 44532 44518 44536 44510 44538 44519 44523 44520 44535
44547 44544 44536 44536 44544 44533 44532 44520 44536 44518 44530 44520 44518 44520 44540
44537 44546 44537 44537 44535 44529 44525 44536 44535 44524 44535 44519 44518 44519 44539
44530 44536 44539 44532 44532 44534 44527 44521 44536 44518 44520 44519 44518 44515 44554
44540 44529 44534 44534 44535 44544 44527 44517 44536 44518 44535 44519 44517 44515 44555
44531 44544 44544 44534 44534 44544 44546 44519 44537 44517 44523 44530 44515 44515 44535
44541 44532 44530 44536 44544 44544 44520 44521 44539 44515 44517 44519 44517 44516 44550
44531 44534 44530 44542 44531 44534 44529 44519 44519 44518 44529 44519 44521 44520 44551
44531 44541 44531 44539 44540 44533 44531 44518 44525 44520 44536 44512 44524 44520 44554
44531 44532 44530 44535 44535 44544 44531 44538 44521 44514 44520 44519 44524 44515 44548
44539 44559 44530 44534 44545 44534 44534 44536 44539 44518 44535 44519 44521 44515 44555
44543 44543 44531 44537 44534 44534 44532 44521 44542 44518 44529 44540 44545 44515 44554
44530 44530 44531 44534 44545 44537 44541 44521 44536 44518 44536 44520 44518 44516 44553
44537 44541 44537 44540 44537 44527 44520 44518 44536 44524 44536 44519 44517 44516 44553
44524 44540 44539 44537 44525 44530 44531 44521 44518 44518 44522 44522 44523 44520 44553
44540 44532 44537 44536 44525 44544 44532 44521 44535 44517 44522 44519 44518 44516 44556
44538 44547 44533 44535 44536 44544 44530 44522 44536 44518 44535 44520 44515 44515 44553
44539 44546 44535 44536 44529 44544 44517 44532 44536 44524 44512 44519 44522 44521 44552
44540 44530 44534 44536 44544 44534 44528 44524 44536 44517 44520 44519 44518 44515 44536

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 44520 bytes 100%
1,000 44514 bytes -6 bytes 100%
10,000 44513 bytes -1 byte 100%
100,000 44510 bytes -3 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
44610 bytes +100 bytes (+0.22%)
44610 bytes +100 bytes (+0.22%)
44638 bytes +128 bytes (+0.29%) +28 bytes
44666 bytes +156 bytes (+0.35%) +56 bytes
44683 bytes +173 bytes (+0.39%) +73 bytes
44717 bytes +207 bytes (+0.47%) +107 bytes
44703 bytes +193 bytes (+0.43%) +93 bytes
44712 bytes +202 bytes (+0.45%) +102 bytes
44739 bytes +229 bytes (+0.51%) +129 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 35523 bytes -8987 bytes (-20.19%)
RAR (proprietary) RAR rar a -m5 -md64m -mc63:128t -mt1 37104 bytes -7406 bytes (-16.64%)
PPMd (Wikipedia) 7zip 7za a -mx=9 -m0=ppmd 38944 bytes -5566 bytes (-12.51%)
Brotli (Wikipedia) brotli brotli -q 11 40901 bytes -3609 bytes (-8.11%)
Burrows-Wheeler transform (Wikipedia) bzip2 bzip2 -9 41621 bytes -2889 bytes (-6.49%)
LZMA2 (Wikipedia) xz xz -9 42320 bytes -2190 bytes (-4.92%)
ZSTD (Wikipedia) zstd zstd -19 43455 bytes -1055 bytes (-2.37%)

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