Choose a version:
32% The original file has 241750 bytes (236.1k) and is available from the project website.
There you can find the official minified version, too, which brings down the size to 76318 bytes (74.5k, 32%).

After GZIP compression these minified files vary in size:
Boot
  31748 bytes (31.0k)
CDN, direct link
cdnjs
  27880 bytes (27.2k)
CDN, direct link
gzip -6 (default)
  27682 bytes (27.0k)
local copy
unpkg
  27650 bytes (27.0k)
CDN, direct link
gzip -9
  27642 bytes (27.0k)
local copy
jsdelivr
  27629 bytes (27.0k)
CDN, direct link
7zip -mx=9 -tgzip
  26742 bytes (26.1k)
local copy
libdeflate -12
  26740 bytes (26.1k)
local copy
kzip -s0 -rn -b0
  26727 bytes (26.1k)
local copy
pigz -11 -n
  26681 bytes (26.1k)
local copy
Zopfli
  26615 bytes (26.0k)
local copy

perma-link to the smallest file on my server:
http://minime.stephan-brumme.com/files/vue/vue-2.2.3.min.js

You will automatically get the smallest Vue 2.2.3 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 1014 bytes by using my Vue 2.2.3 Zopfli version instead of the best available CDN (3.81% smaller than jsdelivr, 26615 vs. 27629 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 --mls16 --bsr20 --lazy --ohh

(found April 2, 2017)
Description Value Parameter
iterations 1000000  --i1000000
maximum blocks 8  --mb8
maximum length score 16  --mls16
block splitting recursion 20  --bsr20
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-2.2.3.min.js --location | md5sum
c21fe47b6cc24a435683c98788ae559d  -
curl --silent --compressed http://minime.stephan-brumme.com/files/vue/vue-2.2.3.min.zopfli.js.gz | md5sum
c21fe47b6cc24a435683c98788ae559d  -

SHA1:
curl --silent --compressed https://raw.githubusercontent.com/vuejs/vue/vue-2.2.3.min.js --location | sha1sum
8c62ff6adce1254496b254f59d20281038be5efb  -
curl --silent --compressed http://minime.stephan-brumme.com/files/vue/vue-2.2.3.min.zopfli.js.gz | sha1sum
8c62ff6adce1254496b254f59d20281038be5efb  -

All listed CDNs deliver identical contents:
CDN Size (compressed) MD5 (uncompressed) Timestamp
Boot 31748 bytes c21fe47b6cc24a435683c98788ae559d (invalid)
cdnjs 27880 bytes c21fe47b6cc24a435683c98788ae559d (invalid)
unpkg 27650 bytes c21fe47b6cc24a435683c98788ae559d March 23, 2017 @ 07:54
jsdelivr 27629 bytes c21fe47b6cc24a435683c98788ae559d (invalid)

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

Other Versions

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

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
26615 bytes -3 bytes zopfli --i1000000 --mls16 --bsr20 --lazy --ohh April 2, 2017 @ 23:51
26618 bytes -3 bytes zopfli --i100000 --mls16 --bsr20 --lazy --ohh March 31, 2017 @ 22:31
26621 bytes -4 bytes zopfli --i10000 --mls16 --bsr20 --lazy --ohh March 30, 2017 @ 22:05
26625 bytes -6 bytes zopfli --i1000 --mls16 --bsr20 --lazy --ohh March 30, 2017 @ 15:07
26631 bytes zopfli --i100 --mls16 --bsr20 --lazy --ohh March 30, 2017 @ 13:33

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 @ 13:45.

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
26637 26636 26638 26635 26636 26637 26636 26638 26640 26640 26659 26685 26679 26681 26661
26653 26656 26654 26654 26680 26687 26676 26679 26662 26668 26664 26670 26669 26673 26675
26648 26660 26650 26650 26661 26671 26659 26662 26667 26666 26669 26667 26665 26676 26678
26654 26658 26652 26665 26671 26659 26661 26666 26632 26643 26667 26662 26662 26674 26660
26657 26658 26657 26640 26644 26660 26667 26667 26628 26631 26631 26679 26679 26658 26665
26655 26653 26647 26648 26684 26682 26680 26680 26670 26669 26626 26668 26660 26673 26669
26671 26671 26665 26662 26675 26677 26678 26679 26658 26669 26658 26667 26662 26677 26667
26653 26655 26648 26663 26659 26661 26668 26661 26670 26635 26653 26664 26661 26670 26665
26656 26661 26650 26646 26659 26674 26670 26631 26667 26668 26662 26664 26665 26656 26660
26642 26672 26640 26632 26678 26675 26680 26660 26666 26667 26657 26631 26663 26658 26663
26674 26672 26660 26664 26659 26677 26667 26667 26665 26673 26661 26665 26679 26659 26660
26654 26672 26667 26666 26659 26659 26669 26670 26629 26666 26660 26662 26662 26660 26660
26644 26660 26643 26637 26656 26673 26657 26665 26666 26666 26654 26664 26664 26658 26667
26641 26655 26643 26641 26651 26670 26670 26668 26667 26666 26632 26665 26664 26657 26665
26678 26653 26645 26627 26649 26680 26671 26680 26672 26669 26667 26662 26660 26676 26671
26655 26657 26666 26665 26658 26660 26667 26668 26670 26665 26657 26664 26661 26674 26669
26643 26656 26643 26615 26657 26657 26668 26660 26669 26667 26659 26666 26665 26676 26661
26646 26662 26641 26642 26651 26678 26672 26665 26667 26636 26662 26667 26666 26677 26667
26673 26656 26635 26642 26661 26658 26657 26659 26658 26666 26668 26663 26665 26661 26668
26648 26659 26635 26631 26674 26658 26659 26667 26670 26667 26668 26667 26666 26658 26665
26656 26653 26645 26666 26673 26664 26669 26668 26671 26665 26656 26661 26665 26658 26662
26654 26673 26650 26640 26663 26677 26670 26664 26664 26667 26661 26666 26666 26658 26667
26654 26654 26643 26648 26648 26675 26655 26660 26658 26666 26656 26665 26660 26655 26665

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 26631 bytes 100%
1,000 26625 bytes -6 bytes 100%
10,000 26621 bytes -4 bytes 100%
100,000 26618 bytes -3 bytes 14.20%
1,000,000 26615 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
26727 bytes +112 bytes (+0.42%)
26727 bytes +112 bytes (+0.42%)
26737 bytes +122 bytes (+0.46%) +10 bytes
26733 bytes +118 bytes (+0.44%) +6 bytes
26745 bytes +130 bytes (+0.49%) +18 bytes
26758 bytes +143 bytes (+0.54%) +31 bytes
26788 bytes +173 bytes (+0.65%) +61 bytes
26825 bytes +210 bytes (+0.79%) +98 bytes
26861 bytes +246 bytes (+0.92%) +134 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 22200 bytes -4415 bytes (-16.59%)
RAR (proprietary) RAR rar a -m5 -md64m -mc63:128t -mt1 22784 bytes -3831 bytes (-14.39%)
PPMd (Wikipedia) 7zip 7za a -mx=9 -m0=ppmd 23183 bytes -3432 bytes (-12.89%)
Brotli (Wikipedia) brotli brotli -q 11 24951 bytes -1664 bytes (-6.25%)
Burrows-Wheeler transform (Wikipedia) bzip2 bzip2 -9 25527 bytes -1088 bytes (-4.09%)
LZMA2 (Wikipedia) xz xz -9 25668 bytes -947 bytes (-3.56%)
ZSTD (Wikipedia) zstd zstd -19 26314 bytes -301 bytes (-1.13%)

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