Choose a version:
31% The original file has 277108 bytes (270.6k) and is available from the project website.
There you can find the official minified version, too, which brings down the size to 85009 bytes (83.0k, 31%).

After GZIP compression these minified files vary in size:
Boot
  35489 bytes (34.7k)
CDN
cdnjs
  31197 bytes (30.5k)
CDN
gzip -6 (default)
  31019 bytes (30.3k)
local copy
unpkg
  30967 bytes (30.2k)
CDN
gzip -9
  30959 bytes (30.2k)
local copy
libdeflate -12
  29970 bytes (29.3k)
local copy
7zip -mx=9 -tgzip
  29938 bytes (29.2k)
local copy
kzip -s0 -rn -b0
  29935 bytes (29.2k)
local copy
pigz -11 -n
  29887 bytes (29.2k)
local copy
Zopfli
  29820 bytes (29.1k)
local copy

perma-link to the smallest file on my server:
http://minime.stephan-brumme.com/files/vue/vue-2.5.0.min.js (or via HTTPS)

You will automatically get the smallest Vue 2.5.0 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 1147 bytes by using my Vue 2.5.0 Zopfli version instead of the best available CDN (3.85% smaller than unpkg, 29820 vs. 30967 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 --mls2 --bsr23 --lazy --ohh

(found October 17, 2017)
Description Value Parameter
iterations 1000000  --i1000000
maximum blocks 8  --mb8
maximum length score 2  --mls2
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://raw.githubusercontent.com/vuejs/vue/vue-2.5.0.min.js --location | md5sum
691137c9c2de59070918fb8c8b29f767  -
curl --silent --compressed https://minime.stephan-brumme.com/files/vue/vue-2.5.0.min.zopfli.js.gz | md5sum
691137c9c2de59070918fb8c8b29f767  -

SHA1:
curl --silent --compressed https://raw.githubusercontent.com/vuejs/vue/vue-2.5.0.min.js --location | sha1sum
35c1cf386ceb892bc32a57026baef3e6fc8f4588  -
curl --silent --compressed https://minime.stephan-brumme.com/files/vue/vue-2.5.0.min.zopfli.js.gz | sha1sum
35c1cf386ceb892bc32a57026baef3e6fc8f4588  -

All listed CDNs deliver identical contents:
CDN Size (compressed) MD5 (uncompressed) Timestamp
Boot 35489 bytes 691137c9c2de59070918fb8c8b29f767 November 14, 2017 @ 18:15
cdnjs 31197 bytes 691137c9c2de59070918fb8c8b29f767 (invalid)
unpkg 30967 bytes 691137c9c2de59070918fb8c8b29f767 (invalid)

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

Other Versions

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

2.5.17, 2.5.16, 2.5.15, 2.5.14, 2.5.13, 2.5.12, 2.5.11, 2.5.10, 2.5.9, 2.5.8, 2.5.7, 2.5.6, 2.5.5, 2.5.4, 2.5.3, 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
29820 bytes -3 bytes zopfli --i1000000 --mls2 --bsr23 --lazy --ohh October 17, 2017 @ 16:40
29823 bytes -2 bytes zopfli --i100000 --mls2 --bsr23 --lazy --ohh October 16, 2017 @ 15:27
29825 bytes -1 byte zopfli --i10000 --mls2 --bsr23 --lazy --ohh October 16, 2017 @ 10:51
29826 bytes -3 bytes zopfli --i10000 --mls2 --bsr6 --lazy --ohh October 16, 2017 @ 10:48
29829 bytes -1 byte zopfli --i1000 --mls2 --bsr6 --lazy --ohh October 16, 2017 @ 10:37
29830 bytes -4 bytes zopfli --i1000 --mls2 --bsr25 --lazy --ohh October 16, 2017 @ 10:35
29834 bytes -9 bytes zopfli --i1000 --mls2 --bsr11 --lazy --ohh October 16, 2017 @ 10:35
29843 bytes zopfli --i100 --mls2 --bsr23 --lazy --ohh October 16, 2017 @ 10:16

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

Most recent activity on November 14, 2017 @ 18:15.

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
29874 29872 29874 29857 29855 29851 29885 29882 29883 29863 29858 29855 29878 29863 29854
29853 29854 29853 29852 29850 29875 29865 29880 29876 29853 29857 29854 29856 29852 29853
29820 29863 29854 29850 29852 29852 29860 29869 29872 29853 29854 29854 29856 29853 29857
29824 29854 29852 29851 29853 29853 29857 29873 29874 29853 29853 29857 29855 29853 29851
29861 29864 29861 29853 29851 29858 29853 29878 29870 29854 29853 29854 29854 29872 29853
29828 29853 29852 29852 29852 29877 29874 29881 29871 29870 29852 29870 29855 29874 29856
29849 29852 29852 29851 29851 29853 29885 29873 29866 29854 29851 29855 29855 29852 29853
29829 29852 29855 29852 29852 29880 29851 29866 29881 29852 29853 29853 29854 29850 29853
29830 29831 29830 29831 29852 29852 29851 29870 29868 29854 29854 29854 29856 29853 29854
29829 29853 29851 29852 29851 29855 29869 29869 29869 29854 29854 29856 29857 29853 29855
29848 29834 29850 29852 29852 29865 29852 29871 29867 29864 29852 29854 29855 29851 29851
29829 29854 29851 29853 29853 29854 29851 29873 29871 29858 29852 29854 29856 29852 29855
29827 29853 29853 29852 29851 29864 29851 29871 29855 29853 29853 29856 29854 29857 29856
29863 29862 29858 29852 29853 29854 29851 29873 29852 29853 29853 29856 29858 29852 29853
29859 29834 29861 29852 29852 29854 29875 29868 29867 29854 29853 29855 29852 29872 29855
29845 29852 29861 29851 29852 29863 29870 29867 29868 29854 29853 29854 29856 29851 29852
29825 29852 29852 29852 29852 29855 29852 29873 29869 29853 29853 29857 29858 29853 29852
29825 29852 29852 29853 29851 29853 29851 29869 29870 29853 29852 29854 29857 29851 29852
29829 29853 29864 29853 29850 29854 29872 29871 29867 29853 29852 29856 29854 29852 29854
29820 29853 29854 29850 29854 29855 29872 29872 29857 29853 29852 29856 29858 29851 29851
29828 29853 29854 29854 29853 29854 29872 29870 29865 29853 29853 29857 29856 29853 29870
29830 29853 29854 29852 29851 29854 29875 29867 29871 29868 29853 29856 29857 29850 29851
29828 29853 29854 29852 29852 29853 29877 29870 29872 29854 29852 29856 29855 29851 29853

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 29843 bytes 100%
1,000 29829 bytes -14 bytes 100%
10,000 29825 bytes -4 bytes 100%
100,000 29823 bytes -2 bytes 1.45%
1,000,000 29820 bytes -3 bytes 0.58%
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
29935 bytes +115 bytes (+0.39%)
29936 bytes +116 bytes (+0.39%) +1 byte
29958 bytes +138 bytes (+0.46%) +23 bytes
29965 bytes +145 bytes (+0.49%) +30 bytes
29946 bytes +126 bytes (+0.42%) +11 bytes
29970 bytes +150 bytes (+0.50%) +35 bytes
30002 bytes +182 bytes (+0.61%) +67 bytes
30034 bytes +214 bytes (+0.72%) +99 bytes
30055 bytes +235 bytes (+0.79%) +120 bytes

Non-DEFLATE Algorithms

Archivers based on completely different compression algorithms often produce superior results.
Unfortunately, browsers only support gzip compression at the moment.
However, support for Brotli is constantly growing - but your browser doesn't support it.
Algorithm Program Parameters Size Compared To Best Zopfli
ZPAQ (Wikipedia) zpaq zpaq -method 69 24450 bytes -5370 bytes (-18.01%)
RAR (proprietary) RAR rar a -m5 -md64m -mc63:128t -mt1 25248 bytes -4572 bytes (-15.33%)
PPMd (Wikipedia) 7zip 7za a -mx=9 -m0=ppmd 26315 bytes -3505 bytes (-11.75%)
Brotli (Wikipedia) brotli brotli -q 11 27753 bytes -2067 bytes (-6.93%)
Burrows-Wheeler transform (Wikipedia) bzip2 bzip2 -9 28297 bytes -1523 bytes (-5.11%)
LZMA2 (Wikipedia) xz xz -9 28544 bytes -1276 bytes (-4.28%)
Zstandard (Wikipedia) zstd zstd -19 29299 bytes -521 bytes (-1.75%)

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 2018.
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