Choose a version:
33% The original file has 211089 bytes (206.1k) and is available from the project website.
There you can find the official minified version, too, which brings down the size to 69227 bytes (67.6k, 33%).

After GZIP compression these minified files vary in size:
Boot
  29008 bytes (28.3k)
CDN, direct link
cdnjs
  25493 bytes (24.9k)
CDN, direct link
unpkg
  25330 bytes (24.7k)
CDN, direct link
gzip -6 (default)
  25327 bytes (24.7k)
local copy
gzip -9
  25313 bytes (24.7k)
local copy
jsdelivr
  25292 bytes (24.7k)
CDN, direct link
7zip -mx=9 -tgzip
  24506 bytes (23.9k)
local copy
kzip -s0 -rn -b0
  24491 bytes (23.9k)
local copy
libdeflate -12
  24482 bytes (23.9k)
local copy
pigz -11 -n
  24477 bytes (23.9k)
local copy
Zopfli
  24396 bytes (23.8k)
local copy
Zopfli (defluff)
  24395 bytes (23.8k)
local copy

perma-link to the smallest file on my server:
http://minime.stephan-brumme.com/files/vue/vue-2.1.2.min.js

You will automatically get the smallest Vue 2.1.2 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 896 bytes by using my Vue 2.1.2 Zopfli version instead of the best available CDN (3.67% smaller than jsdelivr, 24396 vs. 25292 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 --bsr6 --lazy --ohh

(found April 4, 2017)
Description Value Parameter
iterations 100000  --i100000
maximum blocks 8  --mb8
maximum length score 512  --mls512
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

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 (24395 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-2.1.2.min.js --location | md5sum
2442cee3624dcd54de0edb9d5987d101  -
curl --silent --compressed http://minime.stephan-brumme.com/files/vue/vue-2.1.2.min.zopfli.js.gz | md5sum
2442cee3624dcd54de0edb9d5987d101  -

SHA1:
curl --silent --compressed https://raw.githubusercontent.com/vuejs/vue/vue-2.1.2.min.js --location | sha1sum
cf39241b379c9472c6c38341eca149be579b8806  -
curl --silent --compressed http://minime.stephan-brumme.com/files/vue/vue-2.1.2.min.zopfli.js.gz | sha1sum
cf39241b379c9472c6c38341eca149be579b8806  -

All listed CDNs deliver identical contents:
CDN Size (compressed) MD5 (uncompressed) Timestamp
Boot 29008 bytes 2442cee3624dcd54de0edb9d5987d101 (invalid)
cdnjs 25493 bytes 2442cee3624dcd54de0edb9d5987d101 (invalid)
unpkg 25330 bytes 2442cee3624dcd54de0edb9d5987d101 April 4, 2017 @ 10:09
jsdelivr 25292 bytes 2442cee3624dcd54de0edb9d5987d101 (invalid)

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

Other Versions

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

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
24396 bytes -1 byte zopfli --i100000 --mls512 --bsr6 --lazy --ohh April 4, 2017 @ 23:46
24397 bytes -3 bytes zopfli --i100000 --mls512 --bsr16 --lazy --ohh April 4, 2017 @ 17:27
24400 bytes -1 byte zopfli --i10000 --mls512 --bsr16 --lazy --ohh April 4, 2017 @ 16:28
24401 bytes -2 bytes zopfli --i10000 --mls64 --bsr16 --lazy --ohh April 4, 2017 @ 16:09
24403 bytes -1 byte zopfli --i1000 --mls512 --bsr16 --lazy --ohh April 4, 2017 @ 10:42
24404 bytes -6 bytes zopfli --i1000 --mls512 --bsr6 --lazy --ohh April 4, 2017 @ 10:40
24410 bytes zopfli --i100 --mls512 --bsr13 --lazy --ohh April 4, 2017 @ 10:15

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 @ 11:07.

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 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
24460 24460 24458 24451 24458 24450 24443 24447 24442 24457 24461 24461 24462 24458 24454
24439 24446 24439 24436 24431 24443 24446 24446 24444 24457 24442 24456 24459 24452 24453
24438 24448 24442 24450 24444 24449 24449 24406 24396 24459 24460 24454 24460 24451 24452
24442 24434 24431 24429 24433 24432 24427 24439 24443 24455 24451 24457 24459 24447 24453
24407 24406 24407 24412 24411 24443 24408 24401 24403 24406 24454 24437 24436 24451 24454
24437 24427 24435 24438 24434 24442 24431 24439 24443 24455 24440 24440 24443 24447 24451
24428 24430 24431 24439 24438 24423 24431 24440 24440 24459 24439 24441 24432 24436 24453
24427 24430 24435 24438 24435 24428 24439 24439 24400 24437 24438 24438 24435 24441 24458
24428 24432 24440 24437 24439 24435 24435 24438 24402 24437 24436 24437 24441 24454 24453
24425 24424 24425 24422 24423 24429 24436 24438 24398 24455 24439 24437 24440 24440 24454
24421 24424 24422 24420 24421 24425 24435 24438 24443 24437 24440 24439 24440 24446 24452
24433 24436 24429 24436 24436 24427 24436 24438 24439 24460 24454 24456 24442 24449 24451
24434 24435 24428 24439 24409 24398 24406 24439 24397 24459 24458 24455 24442 24453 24453
24429 24430 24437 24424 24409 24445 24411 24445 24401 24404 24459 24452 24432 24451 24450
24432 24437 24432 24441 24410 24426 24437 24440 24398 24459 24458 24459 24441 24454 24455
24430 24428 24437 24422 24424 24422 24438 24405 24440 24405 24454 24443 24444 24453 24454
24431 24434 24424 24422 24434 24442 24406 24439 24442 24459 24436 24443 24438 24446 24453
24432 24438 24441 24435 24439 24408 24398 24442 24401 24459 24440 24442 24438 24452 24451
24439 24440 24432 24434 24411 24421 24441 24441 24404 24405 24440 24437 24444 24447 24451
24433 24431 24433 24423 24440 24422 24436 24408 24444 24403 24440 24438 24442 24454 24452
24431 24428 24434 24439 24439 24422 24435 24438 24405 24438 24440 24438 24438 24451 24451
24437 24428 24438 24438 24439 24430 24439 24438 24407 24405 24441 24444 24438 24451 24451
24436 24438 24442 24438 24428 24422 24435 24439 24405 24459 24438 24442 24454 24448 24454

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 24410 bytes 100%
1,000 24403 bytes -7 bytes 100%
10,000 24399 bytes -4 bytes 100%
100,000 24396 bytes -3 bytes 2.90%
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
24491 bytes +95 bytes (+0.39%)
24493 bytes +97 bytes (+0.40%) +2 bytes
24504 bytes +108 bytes (+0.44%) +13 bytes
24501 bytes +105 bytes (+0.43%) +10 bytes
24506 bytes +110 bytes (+0.45%) +15 bytes
24521 bytes +125 bytes (+0.51%) +30 bytes
24561 bytes +165 bytes (+0.68%) +70 bytes
24591 bytes +195 bytes (+0.80%) +100 bytes
24607 bytes +211 bytes (+0.86%) +116 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 20600 bytes -3796 bytes (-15.56%)
RAR (proprietary) RAR rar a -m5 -md64m -mc63:128t -mt1 20994 bytes -3402 bytes (-13.94%)
PPMd (Wikipedia) 7zip 7za a -mx=9 -m0=ppmd 21057 bytes -3339 bytes (-13.69%)
Brotli (Wikipedia) brotli brotli -q 11 22877 bytes -1519 bytes (-6.23%)
Burrows-Wheeler transform (Wikipedia) bzip2 bzip2 -9 23538 bytes -858 bytes (-3.52%)
LZMA2 (Wikipedia) xz xz -9 23560 bytes -836 bytes (-3.43%)
ZSTD (Wikipedia) zstd zstd -19 24113 bytes -283 bytes (-1.16%)

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