Choose a version:
30% The original file has 257379 bytes (251.3k) and is available from the project website.
There you can find the official minified version, too, which brings down the size to 77688 bytes (75.9k, 30%).

After GZIP compression these minified files vary in size:
Boot
  31323 bytes (30.6k)
CDN
cdnjs
  27064 bytes (26.4k)
CDN
gzip -6 (default)
  26879 bytes (26.2k)
local copy
jsdelivr
  26806 bytes (26.2k)
CDN
gzip -9
  26792 bytes (26.2k)
local copy
unpkg
  26764 bytes (26.1k)
CDN
libdeflate -12
  25903 bytes (25.3k)
local copy
7zip -mx=9 -tgzip
  25877 bytes (25.3k)
local copy
kzip -s0 -rn -b1
  25856 bytes (25.3k)
local copy
pigz -11 -n
  25823 bytes (25.2k)
local copy
Zopfli
  25794 bytes (25.2k)
local copy
Zopfli (defluff)
  25793 bytes (25.2k)
local copy

perma-link to the smallest file on my server:
http://minime.stephan-brumme.com/files/vue/vue-1.0.27.min.js (or via HTTPS)

You will automatically get the smallest Vue 1.0.27 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 970 bytes by using my Vue 1.0.27 Zopfli version instead of the best available CDN (3.76% smaller than unpkg, 25794 vs. 26764 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 --i100000 --mb8 --mls16384 --bsr23 --lazy --ohh

(found April 10, 2017)
Description Value Parameter
iterations 100000  --i100000
maximum blocks 8  --mb8
maximum length score 16384  --mls16384
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

Even Smaller Files Thanks To Defluff

Zopfli's output can be further optimized by the defluff tool.
In this particular case, defluff saves 1 more byte (25793 bytes).

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-1.0.27.min.js --location | md5sum
b8840c0112c8d329995345b704e851de  -
curl --silent --compressed https://minime.stephan-brumme.com/files/vue/vue-1.0.27.min.zopfli.js.gz | md5sum
b8840c0112c8d329995345b704e851de  -

SHA1:
curl --silent --compressed https://raw.githubusercontent.com/vuejs/vue/vue-1.0.27.min.js --location | sha1sum
427feaf16be49b53eac04039006f228074d2f314  -
curl --silent --compressed https://minime.stephan-brumme.com/files/vue/vue-1.0.27.min.zopfli.js.gz | sha1sum
427feaf16be49b53eac04039006f228074d2f314  -

All listed CDNs deliver identical contents:
CDN Size (compressed) MD5 (uncompressed) Timestamp
Boot 31323 bytes b8840c0112c8d329995345b704e851de (invalid)
cdnjs 27064 bytes b8840c0112c8d329995345b704e851de (invalid)
jsdelivr 26806 bytes b8840c0112c8d329995345b704e851de (invalid)
unpkg 26764 bytes b8840c0112c8d329995345b704e851de April 6, 2017 @ 17:24

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
25794 bytes -4 bytes zopfli --i100000 --mls16384 --bsr23 --lazy --ohh April 10, 2017 @ 13:32
25798 bytes -3 bytes zopfli --i10000 --mls16384 --bsr23 --lazy --ohh April 7, 2017 @ 00:28
25801 bytes -4 bytes zopfli --i1000 --mls16384 --bsr23 --lazy --ohh April 6, 2017 @ 19:02
25805 bytes -1 byte zopfli --i1000 --mls256 --bsr2 --lazy --ohh April 6, 2017 @ 18:58
25806 bytes -4 bytes zopfli --i1000 --mls32 --bsr2 --lazy --ohh April 6, 2017 @ 18:56
25810 bytes zopfli --i100 --mls16384 --bsr23 --lazy --ohh April 6, 2017 @ 18:24

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 @ 10:46.

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 or 100,000.
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
25811 25808 25801 25801 25801 25800 25801 25799 25812 25811 25810 25810 25801 25822 25825
25812 25812 25809 25808 25807 25808 25809 25810 25807 25811 25810 25814 25811 25813 25816
25808 25807 25808 25808 25808 25807 25808 25811 25807 25811 25808 25810 25808 25814 25814
25809 25810 25809 25808 25809 25810 25808 25808 25807 25805 25810 25814 25812 25813 25815
25808 25808 25808 25808 25808 25807 25807 25808 25807 25809 25809 25814 25813 25814 25814
25808 25807 25807 25808 25811 25807 25807 25808 25807 25808 25809 25813 25812 25813 25813
25807 25807 25809 25808 25811 25807 25807 25808 25808 25807 25808 25811 25809 25814 25811
25809 25808 25809 25810 25808 25807 25809 25808 25810 25807 25811 25816 25809 25814 25814
25809 25808 25807 25808 25812 25809 25807 25808 25809 25807 25807 25811 25812 25813 25813
25808 25808 25807 25807 25809 25807 25807 25808 25807 25810 25809 25815 25811 25814 25813
25809 25808 25808 25809 25808 25808 25808 25810 25812 25805 25808 25811 25811 25809 25814
25808 25809 25807 25810 25809 25810 25807 25808 25807 25810 25810 25814 25812 25811 25815
25809 25807 25807 25808 25811 25809 25807 25806 25809 25805 25810 25813 25812 25814 25815
25809 25807 25809 25808 25808 25807 25807 25808 25807 25808 25811 25813 25813 25813 25813
25808 25808 25809 25812 25811 25807 25807 25808 25810 25809 25810 25813 25812 25810 25814
25808 25808 25807 25808 25811 25808 25807 25808 25808 25808 25810 25816 25812 25814 25812
25809 25807 25809 25808 25808 25809 25808 25807 25808 25809 25812 25815 25814 25814 25816
25809 25808 25809 25807 25809 25807 25808 25808 25807 25808 25810 25807 25814 25807 25813
25808 25807 25809 25808 25811 25808 25807 25807 25810 25807 25807 25816 25813 25811 25813
25808 25808 25809 25808 25808 25810 25807 25808 25811 25809 25809 25796 25812 25794 25815
25809 25808 25809 25808 25809 25808 25807 25807 25809 25809 25811 25812 25814 25813 25813
25808 25808 25807 25808 25811 25809 25807 25810 25810 25810 25811 25814 25813 25810 25814
25809 25808 25809 25809 25808 25807 25807 25808 25807 25809 25809 25811 25812 25810 25815

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 25810 bytes 100%
1,000 25801 bytes -9 bytes 100%
10,000 25798 bytes -3 bytes 100%
100,000 25794 bytes -4 bytes 2.32%
1,000,000
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
25857 bytes +63 bytes (+0.24%) +1 byte
25856 bytes +62 bytes (+0.24%)
25858 bytes +64 bytes (+0.25%) +2 bytes
25857 bytes +63 bytes (+0.24%) +1 byte
25893 bytes +99 bytes (+0.38%) +37 bytes
25884 bytes +90 bytes (+0.35%) +28 bytes
25906 bytes +112 bytes (+0.43%) +50 bytes
25928 bytes +134 bytes (+0.52%) +72 bytes
25965 bytes +171 bytes (+0.66%) +109 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 21297 bytes -4497 bytes (-17.43%)
RAR (proprietary) RAR rar a -m5 -md64m -mc63:128t -mt1 21755 bytes -4039 bytes (-15.66%)
PPMd (Wikipedia) 7zip 7za a -mx=9 -m0=ppmd 22655 bytes -3139 bytes (-12.17%)
Brotli (Wikipedia) brotli brotli -q 11 24085 bytes -1709 bytes (-6.63%)
Burrows-Wheeler transform (Wikipedia) bzip2 bzip2 -9 24376 bytes -1418 bytes (-5.50%)
LZMA2 (Wikipedia) xz xz -9 24932 bytes -862 bytes (-3.34%)
Zstandard (Wikipedia) zstd zstd -19 25454 bytes -340 bytes (-1.32%)

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