Choose a version:
31% The original file has 268934 bytes (262.6k) and is available from the project website.
There you can find the official minified version, too, which brings down the size to 82698 bytes (80.8k, 31%).

After GZIP compression these minified files vary in size:
Boot
  34483 bytes (33.7k)
CDN, direct link
cdnjs
  30256 bytes (29.5k)
CDN, direct link
gzip -6 (default)
  30075 bytes (29.4k)
local copy
unpkg
  30063 bytes (29.4k)
CDN, direct link
gzip -9
  30040 bytes (29.3k)
local copy
libdeflate -12
  29093 bytes (28.4k)
local copy
7zip -mx=9 -tgzip
  29060 bytes (28.4k)
local copy
kzip -s0 -rn -b1
  29046 bytes (28.4k)
local copy
pigz -11 -n
  29005 bytes (28.3k)
local copy
Zopfli
  28975 bytes (28.3k)
local copy

perma-link to the smallest file on my server:
http://minime.stephan-brumme.com/files/vue/vue-2.4.4.min.js

You will automatically get the smallest Vue 2.4.4 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 1088 bytes by using my Vue 2.4.4 Zopfli version instead of the best available CDN (3.75% smaller than unpkg, 28975 vs. 30063 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 --mls8192 --bsr18 --lazy --ohh

(found September 18, 2017)
Description Value Parameter
iterations 1000000  --i1000000
maximum blocks 8  --mb8
maximum length score 8192  --mls8192
block splitting recursion 18  --bsr18
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://raw.githubusercontent.com/vuejs/vue/vue-2.4.4.min.js --location | md5sum
7e052e2850e70a8db1bd837e08ddda83  -
curl --silent --compressed http://minime.stephan-brumme.com/files/vue/vue-2.4.4.min.zopfli.js.gz | md5sum
7e052e2850e70a8db1bd837e08ddda83  -

SHA1:
curl --silent --compressed https://raw.githubusercontent.com/vuejs/vue/vue-2.4.4.min.js --location | sha1sum
c6c536343f5e882b89b3772a2bc13ed94add9f16  -
curl --silent --compressed http://minime.stephan-brumme.com/files/vue/vue-2.4.4.min.zopfli.js.gz | sha1sum
c6c536343f5e882b89b3772a2bc13ed94add9f16  -

All listed CDNs deliver identical contents:
CDN Size (compressed) MD5 (uncompressed) Timestamp
Boot 34483 bytes 7e052e2850e70a8db1bd837e08ddda83 September 27, 2017 @ 10:57
cdnjs 30256 bytes 7e052e2850e70a8db1bd837e08ddda83 (invalid)
unpkg 30063 bytes 7e052e2850e70a8db1bd837e08ddda83 (invalid)

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

Other Versions

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

2.5.2, 2.5.1, 2.5.0, 2.4.4, 2.4.3, 2.4.2, 2.4.1, 2.4.0, 2.3.4, 2.3.3, 2.3.2, 2.3.1, 2.3.0, 2.2.6, 2.2.5, 2.2.4, 2.2.3, 2.2.2, 2.2.1, 2.2.0, 2.1.10, 2.1.9, 2.1.8, 2.1.7, 2.1.6, 2.1.5, 2.1.4, 2.1.3, 2.1.2, 2.1.1, 2.1.0, 2.0.8, 2.0.7, 2.0.6, 2.0.5, 2.0.4, 2.0.3, 2.0.2, 2.0.1, 2.0.0,
1.0.28, 1.0.27, 1.0.26, 1.0.25, 1.0.24, 1.0.23, 1.0.22, 1.0.21, 1.0.20, 1.0.19, 1.0.18, 1.0.17, 1.0.16, 1.0.15, 1.0.14, 1.0.13, 1.0.12, 1.0.11, 1.0.10, 1.0.9,
0.10.6, 0.10.5, 0.10.4, 0.10.3, 0.10.2, 0.10.1, 0.10.0,
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 AngularJS, BackboneJS, Bootstrap, D3, Dojo, Ember, jQuery, Knockout, lodash, React, Socket.IO, ThreeJS and UnderscoreJS.

Changelog

Best Zopfli parameters so far:
Size Improvement Parameters Found
28975 bytes -1 byte zopfli --i1000000 --mls8192 --bsr18 --lazy --ohh September 18, 2017 @ 19:47
28976 bytes -1 byte zopfli --i100000 --mls8192 --bsr18 --lazy --ohh September 18, 2017 @ 13:31
28977 bytes -2 bytes zopfli --i100000 --mls8192 --bsr9 --lazy --ohh September 18, 2017 @ 13:06
28979 bytes -1 byte zopfli --i10000 --mls8192 --bsr9 --lazy --ohh September 18, 2017 @ 12:19
28980 bytes -2 bytes zopfli --i10000 --mls8192 --bsr10 --lazy --ohh September 18, 2017 @ 12:17
28982 bytes -1 byte zopfli --i10000 --mls512 --bsr9 --lazy --ohh September 18, 2017 @ 12:17
28983 bytes -5 bytes zopfli --i1000 --mls8192 --bsr20 --lazy --ohh September 18, 2017 @ 11:59
28988 bytes zopfli --i100 --mls8192 --bsr11 --lazy --ohh September 18, 2017 @ 11:11

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

Most recent activity on September 27, 2017 @ 10:57.

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
29010 29012 29009 29011 29010 29008 29010 29010 29011 28999 28988 28986 29000 29000 28988
28998 29008 28986 29013 29009 29004 29001 29009 29003 29004 29007 28988 28987 28986 28998
29012 29011 28991 29012 29010 29009 29010 29000 29002 29012 28989 28983 28985 28981 28992
28996 29010 28997 28990 28995 28998 28992 28990 28990 28994 28985 28984 28977 29000 28987
28997 29010 28994 28989 28987 28987 28989 28987 29009 28990 29007 28987 28988 28998 28988
29001 29012 28994 28993 29000 28994 29012 29004 28982 28988 28987 28986 28977 28986 28988
28999 29009 28995 28997 28994 28994 28992 28987 28987 28988 28989 28988 28980 29000 28988
28994 28999 28993 28995 28991 29011 28996 29004 28984 28993 28988 28987 28977 28996 28987
29009 29011 28998 28992 29013 28993 28993 29009 29000 28990 28989 28983 28987 28984 28987
28994 29010 28996 28987 29011 28993 28993 28987 28987 28988 28990 28984 28987 29000 28987
29009 29010 28995 28987 28989 28992 28994 28982 28984 28993 29004 28985 28988 28996 28991
28998 29010 28988 28989 29009 28991 29010 29004 29003 28993 29004 28984 28978 28985 28987
28997 28997 28987 28989 28991 28993 28991 28986 28988 28989 28987 28987 28989 28997 28988
28997 29009 28991 28988 28997 28992 28989 28987 28987 28990 28987 28987 28987 28996 28991
28994 28994 28994 28993 28996 28993 28992 28987 28983 28993 28987 28985 28975 28996 28988
29009 29011 29015 29012 29012 28993 28992 29004 28987 28988 28985 28982 28980 28986 28993
28995 29010 28996 28987 28992 28994 29006 29005 29002 29005 29007 28999 28978 28997 28991
28998 29010 28994 28987 28991 28993 28992 28987 28985 28992 28987 28987 28980 28997 28987
28995 28994 28997 28995 28991 28993 28991 28986 28983 28993 29007 28983 28989 28997 28987
28994 28994 28994 28986 28987 28992 28993 28988 28988 28994 28987 28986 28987 28997 28992
29009 29009 28987 28988 28990 28992 29009 29005 29001 28989 28988 28985 28983 28986 28991
29009 28993 28996 28995 29009 29008 29010 29012 28984 28989 28988 28989 28987 28997 28991
29010 29010 28993 28995 29011 28998 29011 29004 28984 28987 28987 28985 28986 28997 28993

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 28988 bytes 100%
1,000 28983 bytes -5 bytes 100%
10,000 28979 bytes -4 bytes 100%
100,000 28976 bytes -3 bytes 1.74%
1,000,000 28975 bytes -1 byte 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
29046 bytes +71 bytes (+0.25%)
29046 bytes +71 bytes (+0.25%)
29075 bytes +100 bytes (+0.35%) +29 bytes
29060 bytes +85 bytes (+0.29%) +14 bytes
29067 bytes +92 bytes (+0.32%) +21 bytes
29086 bytes +111 bytes (+0.38%) +40 bytes
29116 bytes +141 bytes (+0.49%) +70 bytes
29148 bytes +173 bytes (+0.60%) +102 bytes
29144 bytes +169 bytes (+0.58%) +98 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 23920 bytes -5055 bytes (-17.45%)
RAR (proprietary) RAR rar a -m5 -md64m -mc63:128t -mt1 24537 bytes -4438 bytes (-15.32%)
PPMd (Wikipedia) 7zip 7za a -mx=9 -m0=ppmd 25513 bytes -3462 bytes (-11.95%)
Brotli (Wikipedia) brotli brotli -q 11 26892 bytes -2083 bytes (-7.19%)
Burrows-Wheeler transform (Wikipedia) bzip2 bzip2 -9 27544 bytes -1431 bytes (-4.94%)
LZMA2 (Wikipedia) xz xz -9 27668 bytes -1307 bytes (-4.51%)
ZSTD (Wikipedia) zstd zstd -19 28420 bytes -555 bytes (-1.92%)

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