Choose a version:
31% The original file has 283019 bytes (276.4k) and is available from the project website.
There you can find the official minified version, too, which brings down the size to 86400 bytes (84.4k, 31%).

After GZIP compression these minified files vary in size:
Boot
  36121 bytes (35.3k)
CDN
cdnjs
  31774 bytes (31.0k)
CDN
gzip -6 (default)
  31590 bytes (30.8k)
local copy
unpkg
  31554 bytes (30.8k)
CDN
gzip -9
  31538 bytes (30.8k)
local copy
libdeflate -12
  30565 bytes (29.8k)
local copy
7zip -mx=9 -tgzip
  30521 bytes (29.8k)
local copy
kzip -s0 -rn -b1
  30511 bytes (29.8k)
local copy
pigz -11 -n
  30464 bytes (29.8k)
local copy
Zopfli
  30427 bytes (29.7k)
local copy

perma-link to the smallest file on my server:
http://minime.stephan-brumme.com/files/vue/vue-2.5.7.min.js (or via HTTPS)

You will automatically get the smallest Vue 2.5.7 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 1127 bytes by using my Vue 2.5.7 Zopfli version instead of the best available CDN (3.70% smaller than unpkg, 30427 vs. 31554 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 --bsr9 --lazy --ohh

(found November 21, 2017)
Description Value Parameter
iterations 1000000  --i1000000
maximum blocks 8  --mb8
maximum length score 4  --mls4
block splitting recursion 9  --bsr9
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-2.5.7.min.js --location | md5sum
07b2df13d2459234b86ae48a2571ce97  -
curl --silent --compressed https://minime.stephan-brumme.com/files/vue/vue-2.5.7.min.zopfli.js.gz | md5sum
07b2df13d2459234b86ae48a2571ce97  -

SHA1:
curl --silent --compressed https://raw.githubusercontent.com/vuejs/vue/vue-2.5.7.min.js --location | sha1sum
d4be7867e9916859f67233eb084cdf16e9f217d7  -
curl --silent --compressed https://minime.stephan-brumme.com/files/vue/vue-2.5.7.min.zopfli.js.gz | sha1sum
d4be7867e9916859f67233eb084cdf16e9f217d7  -

All listed CDNs deliver identical contents:
CDN Size (compressed) MD5 (uncompressed) Timestamp
Boot 36121 bytes 07b2df13d2459234b86ae48a2571ce97 November 22, 2017 @ 09:14
cdnjs 31774 bytes 07b2df13d2459234b86ae48a2571ce97 (invalid)
unpkg 31554 bytes 07b2df13d2459234b86ae48a2571ce97 (invalid)

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
30427 bytes -1 byte zopfli --i1000000 --mls4 --bsr9 --lazy --ohh November 21, 2017 @ 22:34
30428 bytes -5 bytes zopfli --i100000 --mls4 --bsr9 --lazy --ohh November 21, 2017 @ 14:45
30433 bytes -1 byte zopfli --i10000 --mls4 --bsr9 --lazy --ohh November 21, 2017 @ 14:17
30434 bytes -1 byte zopfli --i10000 --mls512 --bsr7 --lazy --ohh November 21, 2017 @ 14:15
30435 bytes -3 bytes zopfli --i1000 --mls4 --bsr9 --lazy --ohh November 21, 2017 @ 13:45
30438 bytes zopfli --i100 --mls4 --bsr9 --lazy --ohh November 21, 2017 @ 13:40

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

Most recent activity on November 22, 2017 @ 09:14.

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
30472 30468 30456 30457 30463 30455 30456 30458 30460 30457 30457 30456 30440 30447 30451
30442 30437 30441 30443 30440 30439 30460 30462 30462 30437 30456 30456 30462 30449 30454
30434 30462 30438 30439 30436 30436 30440 30436 30437 30439 30456 30457 30462 30447 30451
30455 30460 30456 30438 30436 30437 30438 30437 30434 30438 30453 30451 30463 30441 30448
30447 30445 30441 30456 30460 30438 30438 30438 30435 30435 30452 30437 30459 30460 30447
30463 30427 30461 30456 30438 30439 30437 30462 30435 30437 30453 30441 30438 30442 30447
30455 30468 30437 30457 30437 30437 30437 30438 30437 30442 30452 30455 30466 30439 30449
30443 30452 30437 30437 30437 30438 30437 30466 30465 30438 30453 30437 30458 30439 30448
30435 30438 30438 30441 30438 30438 30440 30437 30465 30439 30453 30456 30441 30441 30448
30443 30445 30437 30437 30439 30438 30440 30437 30463 30438 30432 30439 30457 30447 30446
30444 30443 30443 30457 30439 30439 30434 30438 30436 30436 30456 30438 30440 30441 30448
30456 30450 30436 30437 30440 30440 30440 30437 30434 30439 30457 30452 30457 30441 30449
30436 30437 30440 30439 30440 30441 30437 30437 30435 30440 30437 30458 30458 30446 30448
30445 30462 30437 30441 30439 30440 30438 30436 30435 30439 30456 30439 30439 30438 30448
30458 30459 30456 30456 30443 30439 30440 30466 30435 30440 30456 30437 30451 30438 30447
30458 30442 30456 30457 30438 30438 30437 30435 30435 30438 30453 30438 30441 30441 30448
30440 30436 30444 30450 30455 30439 30437 30436 30437 30438 30453 30438 30449 30438 30449
30443 30456 30435 30442 30440 30438 30437 30437 30435 30439 30452 30459 30441 30439 30447
30457 30456 30437 30438 30438 30439 30437 30437 30435 30440 30452 30458 30466 30441 30447
30434 30448 30437 30441 30437 30441 30438 30437 30436 30441 30434 30438 30462 30451 30449
30434 30450 30447 30437 30438 30438 30438 30435 30435 30439 30456 30458 30457 30440 30441
30438 30444 30437 30437 30438 30442 30439 30437 30435 30440 30453 30438 30458 30444 30447
30443 30450 30437 30442 30439 30438 30437 30437 30436 30438 30456 30438 30463 30437 30441

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 30438 bytes 100%
1,000 30435 bytes -3 bytes 100%
10,000 30433 bytes -2 bytes 100%
100,000 30428 bytes -5 bytes 0.58%
1,000,000 30427 bytes -1 byte 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
30515 bytes +88 bytes (+0.29%) +4 bytes
30511 bytes +84 bytes (+0.28%)
30535 bytes +108 bytes (+0.35%) +24 bytes
30512 bytes +85 bytes (+0.28%) +1 byte
30526 bytes +99 bytes (+0.33%) +15 bytes
30561 bytes +134 bytes (+0.44%) +50 bytes
30593 bytes +166 bytes (+0.55%) +82 bytes
30627 bytes +200 bytes (+0.66%) +116 bytes
30647 bytes +220 bytes (+0.72%) +136 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 24904 bytes -5523 bytes (-18.15%)
RAR (proprietary) RAR rar a -m5 -md64m -mc63:128t -mt1 25766 bytes -4661 bytes (-15.32%)
PPMd (Wikipedia) 7zip 7za a -mx=9 -m0=ppmd 26834 bytes -3593 bytes (-11.81%)
Brotli (Wikipedia) brotli brotli -q 11 28277 bytes -2150 bytes (-7.07%)
Burrows-Wheeler transform (Wikipedia) bzip2 bzip2 -9 28849 bytes -1578 bytes (-5.19%)
LZMA2 (Wikipedia) xz xz -9 29076 bytes -1351 bytes (-4.44%)
Zstandard (Wikipedia) zstd zstd -19 29860 bytes -567 bytes (-1.86%)

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