Choose a version:
32% The original file has 221383 bytes (216.2k) and is available from the project website.
There you can find the official minified version, too, which brings down the size to 71722 bytes (70.0k, 32%).

After GZIP compression these minified files vary in size:
Boot
  30100 bytes (29.4k)
CDN
cdnjs
  26415 bytes (25.8k)
CDN
unpkg
  26278 bytes (25.7k)
CDN
gzip -6 (default)
  26270 bytes (25.7k)
local copy
gzip -9
  26244 bytes (25.6k)
local copy
jsdelivr
  26231 bytes (25.6k)
CDN
kzip -s0 -rn -b1
  25387 bytes (24.8k)
local copy
7zip -mx=9 -tgzip
  25375 bytes (24.8k)
local copy
libdeflate -12
  25370 bytes (24.8k)
local copy
pigz -11 -n
  25329 bytes (24.7k)
local copy
Zopfli
  25281 bytes (24.7k)
local copy
Zopfli (defluff)
  25279 bytes (24.7k)
local copy

perma-link to the smallest file on my server:
http://minime.stephan-brumme.com/files/vue/vue-2.1.7.min.js

You will automatically get the smallest Vue 2.1.7 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 950 bytes by using my Vue 2.1.7 Zopfli version instead of the best available CDN (3.76% smaller than jsdelivr, 25281 vs. 26231 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 --mls512 --bsr8 --lazy --ohh

(found April 4, 2017)
Description Value Parameter
iterations 100000  --i100000
maximum blocks 8  --mb8
maximum length score 512  --mls512
block splitting recursion 8  --bsr8
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 2 more bytes (25279 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-2.1.7.min.js --location | md5sum
7a1e2a9fcf8639f0c545fed6621a484c  -
curl --silent --compressed http://minime.stephan-brumme.com/files/vue/vue-2.1.7.min.zopfli.js.gz | md5sum
7a1e2a9fcf8639f0c545fed6621a484c  -

SHA1:
curl --silent --compressed https://raw.githubusercontent.com/vuejs/vue/vue-2.1.7.min.js --location | sha1sum
1a95af4d7157550a886880548016da0ca5f380a4  -
curl --silent --compressed http://minime.stephan-brumme.com/files/vue/vue-2.1.7.min.zopfli.js.gz | sha1sum
1a95af4d7157550a886880548016da0ca5f380a4  -

All listed CDNs deliver identical contents:
CDN Size (compressed) MD5 (uncompressed) Timestamp
Boot 30100 bytes 7a1e2a9fcf8639f0c545fed6621a484c (invalid)
cdnjs 26415 bytes 7a1e2a9fcf8639f0c545fed6621a484c (invalid)
unpkg 26278 bytes 7a1e2a9fcf8639f0c545fed6621a484c April 4, 2017 @ 10:09
jsdelivr 26231 bytes 7a1e2a9fcf8639f0c545fed6621a484c (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
25281 bytes -1 byte zopfli --i100000 --mls512 --bsr8 --lazy --ohh April 4, 2017 @ 12:49
25282 bytes -4 bytes zopfli --i10000 --mls512 --bsr8 --lazy --ohh April 4, 2017 @ 11:50
25286 bytes -2 bytes zopfli --i1000 --mls512 --bsr8 --lazy --ohh April 4, 2017 @ 10:42
25288 bytes zopfli --i100 --mls512 --bsr8 --lazy --ohh April 4, 2017 @ 10:27

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 @ 10:29.

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
25322 25319 25321 25323 25330 25329 25334 25310 25291 25338 25338 25338 25327 25330 25335
25317 25317 25325 25326 25324 25331 25318 25293 25322 25322 25316 25339 25332 25329 25331
25318 25314 25315 25325 25324 25327 25318 25329 25321 25327 25336 25291 25337 25328 25323
25315 25314 25318 25320 25317 25318 25321 25320 25324 25320 25338 25337 25310 25322 25327
25323 25319 25287 25322 25294 25320 25293 25292 25281 25327 25337 25314 25308 25329 25330
25319 25321 25310 25321 25322 25315 25326 25327 25325 25319 25337 25335 25313 25324 25318
25321 25319 25324 25325 25321 25310 25323 25316 25322 25321 25320 25337 25318 25322 25325
25320 25317 25323 25323 25322 25308 25318 25324 25321 25309 25316 25317 25315 25316 25333
25317 25323 25318 25325 25323 25307 25317 25320 25322 25328 25316 25314 25316 25322 25328
25319 25315 25315 25321 25323 25310 25317 25285 25319 25312 25315 25322 25316 25315 25314
25319 25315 25319 25323 25323 25308 25313 25320 25322 25314 25318 25318 25319 25316 25321
25323 25314 25308 25319 25322 25316 25323 25316 25322 25317 25317 25316 25309 25316 25335
25313 25313 25308 25324 25322 25304 25313 25323 25329 25319 25316 25316 25317 25317 25321
25314 25318 25318 25319 25317 25306 25319 25292 25319 25327 25336 25300 25310 25325 25315
25319 25320 25319 25320 25322 25309 25317 25322 25322 25308 25336 25335 25310 25319 25318
25319 25315 25316 25320 25326 25319 25318 25328 25322 25310 25338 25286 25320 25317 25318
25316 25315 25319 25320 25323 25308 25316 25321 25323 25328 25338 25290 25318 25320 25321
25319 25313 25317 25320 25318 25293 25324 25282 25322 25319 25337 25290 25315 25324 25337
25321 25315 25308 25318 25322 25291 25321 25324 25319 25308 25317 25286 25313 25322 25337
25315 25314 25316 25320 25318 25291 25314 25327 25322 25309 25321 25331 25315 25326 25320
25316 25315 25307 25321 25326 25307 25321 25323 25321 25327 25315 25317 25314 25322 25318
25314 25316 25319 25321 25321 25314 25314 25324 25323 25317 25316 25324 25314 25316 25318
25315 25314 25304 25322 25324 25309 25316 25323 25322 25308 25317 25313 25320 25326 25314

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 25288 bytes 100%
1,000 25286 bytes -2 bytes 100%
10,000 25282 bytes -4 bytes 100%
100,000 25281 bytes -1 byte 2.61%
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
25389 bytes +108 bytes (+0.43%) +2 bytes
25387 bytes +106 bytes (+0.42%)
25391 bytes +110 bytes (+0.44%) +4 bytes
25392 bytes +111 bytes (+0.44%) +5 bytes
25388 bytes +107 bytes (+0.42%) +1 byte
25409 bytes +128 bytes (+0.51%) +22 bytes
25449 bytes +168 bytes (+0.66%) +62 bytes
25477 bytes +196 bytes (+0.78%) +90 bytes
25486 bytes +205 bytes (+0.81%) +99 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 21169 bytes -4112 bytes (-16.27%)
RAR (proprietary) RAR rar a -m5 -md64m -mc63:128t -mt1 21679 bytes -3602 bytes (-14.25%)
PPMd (Wikipedia) 7zip 7za a -mx=9 -m0=ppmd 21745 bytes -3536 bytes (-13.99%)
Brotli (Wikipedia) brotli brotli -q 11 23668 bytes -1613 bytes (-6.38%)
Burrows-Wheeler transform (Wikipedia) bzip2 bzip2 -9 24340 bytes -941 bytes (-3.72%)
LZMA2 (Wikipedia) xz xz -9 24388 bytes -893 bytes (-3.53%)
ZSTD (Wikipedia) zstd zstd -19 24961 bytes -320 bytes (-1.27%)

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