Choose a version:
32% The original file has 240342 bytes (234.7k) and is available from the project website.
There you can find the official minified version, too, which brings down the size to 76316 bytes (74.5k, 32%).

After GZIP compression these minified files vary in size:
Boot
  31754 bytes (31.0k)
CDN
cdnjs
  27854 bytes (27.2k)
CDN
gzip -6 (default)
  27649 bytes (27.0k)
local copy
unpkg
  27622 bytes (27.0k)
CDN
gzip -9
  27613 bytes (27.0k)
local copy
jsdelivr
  27599 bytes (27.0k)
CDN
7zip -mx=9 -tgzip
  26718 bytes (26.1k)
local copy
libdeflate -12
  26708 bytes (26.1k)
local copy
kzip -s0 -rn -b1
  26702 bytes (26.1k)
local copy
pigz -11 -n
  26625 bytes (26.0k)
local copy
Zopfli
  26584 bytes (26.0k)
local copy

perma-link to the smallest file on my server:
http://minime.stephan-brumme.com/files/vue/vue-2.2.2.min.js

You will automatically get the smallest Vue 2.2.2 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 1015 bytes by using my Vue 2.2.2 Zopfli version instead of the best available CDN (3.82% smaller than jsdelivr, 26584 vs. 27599 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 --mls2048 --bsr6 --lazy --ohh

(found April 2, 2017)
Description Value Parameter
iterations 1000000  --i1000000
maximum blocks 8  --mb8
maximum length score 2048  --mls2048
block splitting recursion 6  --bsr6
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-2.2.2.min.js --location | md5sum
77af8ad6d44a51d7f879be97ca5acf6e  -
curl --silent --compressed http://minime.stephan-brumme.com/files/vue/vue-2.2.2.min.zopfli.js.gz | md5sum
77af8ad6d44a51d7f879be97ca5acf6e  -

SHA1:
curl --silent --compressed https://raw.githubusercontent.com/vuejs/vue/vue-2.2.2.min.js --location | sha1sum
d79c2ae1299c5bbb6e121fcedb0c746efcc0b2e6  -
curl --silent --compressed http://minime.stephan-brumme.com/files/vue/vue-2.2.2.min.zopfli.js.gz | sha1sum
d79c2ae1299c5bbb6e121fcedb0c746efcc0b2e6  -

All listed CDNs deliver identical contents:
CDN Size (compressed) MD5 (uncompressed) Timestamp
Boot 31754 bytes 77af8ad6d44a51d7f879be97ca5acf6e (invalid)
cdnjs 27854 bytes 77af8ad6d44a51d7f879be97ca5acf6e (invalid)
unpkg 27622 bytes 77af8ad6d44a51d7f879be97ca5acf6e March 23, 2017 @ 07:54
jsdelivr 27599 bytes 77af8ad6d44a51d7f879be97ca5acf6e (invalid)

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

Other Versions

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

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
26584 bytes -3 bytes zopfli --i1000000 --mls2048 --bsr6 --lazy --ohh April 2, 2017 @ 23:44
26587 bytes -2 bytes zopfli --i100000 --mls2048 --bsr6 --lazy --ohh March 31, 2017 @ 19:46
26589 bytes -2 bytes zopfli --i100000 --mls4 --bsr16 --lazy --ohh March 31, 2017 @ 18:08
26591 bytes -2 bytes zopfli --i10000 --mls4 --bsr16 --lazy --ohh March 30, 2017 @ 21:02
26593 bytes -2 bytes zopfli --i1000 --mls4 --bsr16 --lazy --ohh March 30, 2017 @ 14:17
26595 bytes -7 bytes zopfli --i1000 --mls8 --bsr23 --lazy --ohh March 30, 2017 @ 14:13
26602 bytes zopfli --i100 --mls4 --bsr16 --lazy --ohh March 30, 2017 @ 13:39

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

Most recent activity on April 11, 2017 @ 06:01.

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
26662 26663 26613 26614 26609 26667 26610 26611 26612 26612 26611 26612 26663 26650 26658
26623 26594 26598 26614 26617 26651 26636 26656 26658 26614 26633 26634 26662 26640 26649
26595 26632 26590 26606 26622 26645 26635 26643 26612 26602 26584 26641 26640 26638 26647
26605 26607 26589 26634 26616 26638 26647 26640 26636 26608 26632 26641 26639 26639 26644
26611 26614 26605 26607 26615 26634 26614 26612 26611 26603 26627 26627 26649 26627 26640
26625 26609 26601 26594 26609 26645 26651 26654 26648 26618 26638 26631 26648 26627 26648
26640 26646 26641 26634 26631 26651 26625 26652 26656 26643 26632 26643 26640 26638 26640
26640 26650 26637 26647 26638 26637 26642 26641 26643 26642 26629 26632 26649 26641 26641
26595 26607 26590 26597 26617 26618 26638 26612 26612 26610 26635 26632 26636 26635 26641
26594 26604 26593 26603 26596 26650 26602 26654 26614 26646 26636 26629 26650 26638 26640
26640 26639 26640 26635 26639 26644 26639 26643 26646 26648 26635 26641 26642 26636 26647
26601 26643 26638 26636 26635 26634 26632 26612 26615 26610 26632 26639 26640 26635 26644
26594 26589 26593 26607 26601 26646 26650 26628 26596 26642 26633 26638 26649 26633 26642
26612 26591 26597 26596 26607 26631 26619 26643 26603 26607 26608 26614 26639 26636 26644
26626 26605 26592 26615 26596 26648 26599 26643 26644 26641 26631 26641 26649 26641 26637
26640 26643 26634 26634 26640 26630 26647 26613 26641 26604 26594 26639 26641 26627 26640
26599 26610 26597 26640 26607 26635 26629 26642 26615 26618 26624 26640 26640 26623 26645
26601 26604 26590 26608 26596 26647 26602 26611 26641 26611 26628 26638 26638 26627 26642
26599 26595 26590 26605 26606 26646 26646 26614 26614 26602 26630 26630 26640 26627 26642
26640 26644 26589 26636 26641 26631 26633 26612 26615 26605 26625 26639 26639 26627 26642
26596 26597 26634 26634 26640 26630 26629 26643 26613 26600 26619 26630 26643 26635 26642
26595 26594 26593 26603 26605 26633 26646 26613 26632 26646 26633 26631 26648 26635 26642
26598 26603 26594 26603 26615 26593 26610 26629 26616 26640 26626 26614 26651 26627 26630

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 26602 bytes 100%
1,000 26593 bytes -9 bytes 100%
10,000 26591 bytes -2 bytes 100%
100,000 26587 bytes -4 bytes 9.57%
1,000,000 26584 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
26706 bytes +122 bytes (+0.46%) +4 bytes
26702 bytes +118 bytes (+0.44%)
26714 bytes +130 bytes (+0.49%) +12 bytes
26706 bytes +122 bytes (+0.46%) +4 bytes
26714 bytes +130 bytes (+0.49%) +12 bytes
26728 bytes +144 bytes (+0.54%) +26 bytes
26753 bytes +169 bytes (+0.64%) +51 bytes
26790 bytes +206 bytes (+0.77%) +88 bytes
26827 bytes +243 bytes (+0.91%) +125 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 22245 bytes -4339 bytes (-16.32%)
RAR (proprietary) RAR rar a -m5 -md64m -mc63:128t -mt1 22792 bytes -3792 bytes (-14.26%)
PPMd (Wikipedia) 7zip 7za a -mx=9 -m0=ppmd 23182 bytes -3402 bytes (-12.80%)
Brotli (Wikipedia) brotli brotli -q 11 24897 bytes -1687 bytes (-6.35%)
Burrows-Wheeler transform (Wikipedia) bzip2 bzip2 -9 25574 bytes -1010 bytes (-3.80%)
LZMA2 (Wikipedia) xz xz -9 25668 bytes -916 bytes (-3.45%)
ZSTD (Wikipedia) zstd zstd -19 26290 bytes -294 bytes (-1.11%)

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