Choose a version:
27% The original file has 340337 bytes (332.4k) and is available from the project website.
There you can find the official minified version, too, which brings down the size to 93390 bytes (91.2k, 27%).

After GZIP compression these minified files vary in size:
unpkg
  39834 bytes (38.9k)
CDN
Boot
  39115 bytes (38.2k)
CDN
cdnjs
  34199 bytes (33.4k)
CDN
gzip -6 (default)
  34002 bytes (33.2k)
local copy
gzip -9
  33939 bytes (33.1k)
local copy
libdeflate -12
  32821 bytes (32.1k)
local copy
7zip -mx=9 -tgzip
  32751 bytes (32.0k)
local copy
kzip -s0 -rn -b4
  32710 bytes (31.9k)
local copy
pigz -11 -n
  32705 bytes (31.9k)
local copy
Zopfli
  32645 bytes (31.9k)
local copy

perma-link to the smallest file on my server:
http://minime.stephan-brumme.com/files/vue/vue-2.6.8.min.js (or via HTTPS)

You will automatically get the smallest Vue 2.6.8 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 1554 bytes by using my Vue 2.6.8 Zopfli version instead of the best available CDN (4.76% smaller than cdnjs, 32645 vs. 34199 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 --mls4 --bsr16 --lazy --ohh

(found March 6, 2019)
Description Value Parameter
iterations 1000000  --i1000000
maximum blocks 8  --mb8
maximum length score 4  --mls4
block splitting recursion 16  --bsr16
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-2.6.8.min.js --location | md5sum
94fbbc9116995db775c8b22e8c53297f  -
curl --silent --compressed https://minime.stephan-brumme.com/files/vue/vue-2.6.8.min.zopfli.js.gz | md5sum
94fbbc9116995db775c8b22e8c53297f  -

SHA1:
curl --silent --compressed https://raw.githubusercontent.com/vuejs/vue/vue-2.6.8.min.js --location | sha1sum
559ab36aa8356f2819234c6dcf1920524048843b  -
curl --silent --compressed https://minime.stephan-brumme.com/files/vue/vue-2.6.8.min.zopfli.js.gz | sha1sum
559ab36aa8356f2819234c6dcf1920524048843b  -

All listed CDNs deliver identical contents:
CDN Size (compressed) MD5 (uncompressed) Timestamp
unpkg 39834 bytes 94fbbc9116995db775c8b22e8c53297f (invalid)
Boot 39115 bytes 94fbbc9116995db775c8b22e8c53297f (invalid)
cdnjs 34199 bytes 94fbbc9116995db775c8b22e8c53297f (invalid)

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

Other Versions

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

2.6.10, 2.6.9, 2.6.8, 2.6.7, 2.6.6, 2.6.5, 2.6.4, 2.6.3, 2.6.2, 2.6.1, 2.6.0, 2.5.22, 2.5.21, 2.5.20, 2.5.19, 2.5.18, 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
32645 bytes -4 bytes zopfli --i1000000 --mls4 --bsr16 --lazy --ohh March 6, 2019 @ 00:41
32649 bytes -3 bytes zopfli --i100000 --mls4 --bsr16 --lazy --ohh March 5, 2019 @ 17:05
32652 bytes -3 bytes zopfli --i10000 --mls4 --bsr16 --lazy --ohh March 5, 2019 @ 16:29
32655 bytes -4 bytes zopfli --i1000 --mls4 --bsr16 --lazy --ohh March 5, 2019 @ 15:59
32659 bytes -4 bytes zopfli --i1000 --mls2 --bsr25 --lazy --ohh March 5, 2019 @ 15:24
32663 bytes zopfli --i100 --mls4 --bsr16 --lazy --ohh March 5, 2019 @ 14:26

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

Most recent activity on March 6, 2019 @ 18:07.

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
32685 32678 32685 32693 32688 32687 32696 32694 32690 32691 32704 32668 32672 32678 32676
32677 32685 32680 32682 32677 32677 32700 32695 32687 32687 32675 32678 32668 32677 32691
32674 32683 32682 32681 32687 32691 32692 32686 32686 32692 32689 32680 32669 32667 32693
32677 32677 32677 32678 32676 32678 32693 32683 32699 32691 32686 32679 32672 32683 32683
32685 32677 32677 32695 32684 32678 32686 32694 32688 32689 32670 32667 32669 32670 32684
32670 32696 32678 32678 32678 32692 32689 32689 32687 32689 32685 32670 32670 32667 32692
32676 32677 32677 32679 32679 32684 32693 32690 32686 32689 32687 32671 32670 32667 32686
32663 32653 32678 32678 32677 32677 32687 32686 32692 32689 32687 32673 32669 32676 32670
32674 32664 32679 32678 32678 32691 32685 32690 32688 32685 32684 32669 32669 32668 32670
32670 32653 32677 32682 32677 32679 32693 32689 32687 32690 32685 32672 32669 32667 32686
32672 32677 32677 32678 32674 32693 32695 32688 32687 32692 32678 32673 32668 32668 32686
32663 32663 32665 32672 32674 32678 32693 32686 32688 32686 32676 32670 32668 32676 32670
32653 32645 32661 32682 32678 32691 32698 32691 32687 32687 32678 32672 32669 32669 32684
32674 32697 32678 32681 32678 32692 32686 32684 32694 32689 32676 32671 32667 32668 32695
32654 32697 32691 32701 32699 32688 32686 32688 32688 32689 32676 32674 32667 32677 32689
32664 32654 32677 32682 32671 32699 32688 32690 32687 32689 32679 32672 32673 32679 32685
32654 32654 32678 32682 32678 32702 32701 32687 32688 32689 32676 32671 32668 32667 32691
32699 32695 32694 32693 32687 32692 32687 32685 32686 32689 32672 32670 32670 32668 32689
32662 32699 32661 32682 32674 32692 32692 32685 32688 32691 32677 32673 32667 32667 32669
32670 32650 32678 32678 32673 32678 32687 32689 32688 32690 32686 32673 32675 32667 32684
32655 32696 32663 32682 32690 32690 32686 32684 32686 32692 32679 32671 32668 32668 32669
32691 32694 32678 32692 32687 32691 32690 32691 32688 32685 32676 32678 32669 32667 32684
32663 32664 32663 32678 32679 32692 32693 32686 32688 32692 32676 32672 32668 32668 32682

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 32663 bytes 100%
1,000 32655 bytes -8 bytes 100%
10,000 32652 bytes -3 bytes 100%
100,000 32649 bytes -3 bytes 0.58%
1,000,000 32645 bytes -4 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
32781 bytes +136 bytes (+0.42%) +71 bytes
32783 bytes +138 bytes (+0.42%) +73 bytes
32786 bytes +141 bytes (+0.43%) +76 bytes
32772 bytes +127 bytes (+0.39%) +62 bytes
32710 bytes +65 bytes (+0.20%)
32712 bytes +67 bytes (+0.21%) +2 bytes
32741 bytes +96 bytes (+0.29%) +31 bytes
32741 bytes +96 bytes (+0.29%) +31 bytes
32771 bytes +126 bytes (+0.39%) +61 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 26875 bytes -5770 bytes (-17.67%)
RAR (proprietary) RAR rar a -m5 -md64m -mc63:128t -mt1 27914 bytes -4731 bytes (-14.49%)
PPMd (Wikipedia) 7zip 7za a -mx=9 -m0=ppmd 28958 bytes -3687 bytes (-11.29%)
Brotli (Wikipedia) brotli brotli -q 11 30629 bytes -2016 bytes (-6.18%)
Burrows-Wheeler transform (Wikipedia) bzip2 bzip2 -9 31238 bytes -1407 bytes (-4.31%)
LZMA2 (Wikipedia) xz xz -9 31416 bytes -1229 bytes (-3.76%)
Zstandard (Wikipedia) zstd zstd -19 32058 bytes -587 bytes (-1.80%)

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 2019.
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