Choose a version:
28% The original file has 272697 bytes (266.3k) and is available from the project website.
There you can find the official minified version, too, which brings down the size to 76769 bytes (75.0k, 28%).

After GZIP compression these minified files vary in size:
Boot
  31046 bytes (30.3k)
CDN
cdnjs
  26827 bytes (26.2k)
CDN
gzip -6 (default)
  26661 bytes (26.0k)
local copy
jsdelivr
  26586 bytes (26.0k)
CDN
gzip -9
  26567 bytes (25.9k)
local copy
unpkg
  26519 bytes (25.9k)
CDN
libdeflate -12
  25673 bytes (25.1k)
local copy
7zip -mx=9 -tgzip
  25658 bytes (25.1k)
local copy
kzip -s0 -rn -b2
  25621 bytes (25.0k)
local copy
pigz -11 -n
  25588 bytes (25.0k)
local copy
Zopfli
  25556 bytes (25.0k)
local copy

perma-link to the smallest file on my server:
http://minime.stephan-brumme.com/files/vue/vue-1.0.25.min.js

You will automatically get the smallest Vue 1.0.25 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 963 bytes by using my Vue 1.0.25 Zopfli version instead of the best available CDN (3.77% smaller than unpkg, 25556 vs. 26519 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 --mls2048 --bsr9 --lazy --ohh

(found April 10, 2017)
Description Value Parameter
iterations 100000  --i100000
maximum blocks 8  --mb8
maximum length score 2048  --mls2048
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-1.0.25.min.js --location | md5sum
3d752be2e460ee686dd16f2a9ca6ea41  -
curl --silent --compressed http://minime.stephan-brumme.com/files/vue/vue-1.0.25.min.zopfli.js.gz | md5sum
3d752be2e460ee686dd16f2a9ca6ea41  -

SHA1:
curl --silent --compressed https://raw.githubusercontent.com/vuejs/vue/vue-1.0.25.min.js --location | sha1sum
f3505a7ea3160161e5aadeecfadb16738580bac6  -
curl --silent --compressed http://minime.stephan-brumme.com/files/vue/vue-1.0.25.min.zopfli.js.gz | sha1sum
f3505a7ea3160161e5aadeecfadb16738580bac6  -

All listed CDNs deliver identical contents:
CDN Size (compressed) MD5 (uncompressed) Timestamp
Boot 31046 bytes 3d752be2e460ee686dd16f2a9ca6ea41 (invalid)
cdnjs 26827 bytes 3d752be2e460ee686dd16f2a9ca6ea41 (invalid)
jsdelivr 26586 bytes 3d752be2e460ee686dd16f2a9ca6ea41 (invalid)
unpkg 26519 bytes 3d752be2e460ee686dd16f2a9ca6ea41 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:

2.5.16, 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
25556 bytes -1 byte zopfli --i100000 --mls2048 --bsr9 --lazy --ohh April 10, 2017 @ 12:34
25557 bytes -1 byte zopfli --i10000 --mls2048 --bsr9 --lazy --ohh April 7, 2017 @ 01:11
25558 bytes -3 bytes zopfli --i10000 --mls2048 --bsr22 --lazy --ohh April 7, 2017 @ 00:38
25561 bytes -1 byte zopfli --i1000 --mls2048 --bsr22 --lazy --ohh April 6, 2017 @ 19:20
25562 bytes -2 bytes zopfli --i1000 --mls2048 --bsr11 --lazy --ohh April 6, 2017 @ 18:59
25564 bytes -9 bytes zopfli --i1000 --mls8 --bsr2 --lazy --ohh April 6, 2017 @ 18:57
25573 bytes zopfli --i100 --mls64 --bsr17 --lazy --ohh April 6, 2017 @ 18:31

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 @ 07:35.

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
25587 25587 25559 25567 25567 25565 25568 25562 25561 25565 25569 25573 25570 25580 25594
25584 25585 25585 25585 25585 25584 25578 25584 25575 25574 25562 25574 25561 25578 25579
25585 25580 25575 25580 25577 25581 25579 25579 25580 25578 25577 25577 25577 25580 25584
25582 25580 25582 25582 25580 25580 25581 25579 25574 25568 25576 25565 25579 25579 25584
25587 25587 25580 25581 25581 25580 25582 25564 25566 25568 25560 25564 25562 25581 25584
25581 25581 25574 25577 25580 25581 25579 25581 25569 25570 25556 25568 25562 25581 25584
25581 25580 25581 25580 25578 25580 25582 25563 25569 25565 25564 25583 25560 25579 25584
25582 25580 25582 25580 25582 25580 25581 25569 25569 25571 25561 25567 25562 25582 25584
25581 25580 25580 25582 25582 25582 25581 25568 25568 25582 25575 25574 25576 25576 25586
25582 25580 25582 25581 25582 25580 25581 25569 25569 25567 25561 25566 25561 25579 25584
25578 25568 25578 25580 25583 25563 25578 25565 25569 25570 25564 25565 25559 25579 25584
25582 25582 25582 25582 25582 25580 25580 25582 25569 25567 25557 25566 25581 25581 25584
25582 25580 25578 25580 25580 25581 25582 25578 25584 25582 25561 25566 25577 25581 25584
25582 25580 25580 25581 25582 25560 25579 25563 25569 25567 25565 25566 25562 25578 25583
25582 25580 25580 25580 25582 25580 25582 25569 25569 25567 25559 25566 25562 25580 25584
25582 25582 25580 25582 25580 25582 25581 25581 25569 25582 25558 25578 25579 25580 25585
25582 25582 25580 25581 25582 25567 25579 25569 25569 25568 25562 25574 25579 25580 25584
25582 25580 25582 25580 25582 25582 25582 25564 25569 25565 25564 25573 25561 25580 25584
25582 25582 25573 25576 25583 25582 25582 25568 25569 25568 25558 25584 25562 25579 25585
25583 25581 25581 25582 25582 25582 25582 25561 25569 25582 25559 25583 25562 25581 25584
25581 25580 25580 25580 25580 25582 25581 25561 25569 25582 25584 25574 25580 25579 25585
25578 25581 25574 25576 25577 25581 25579 25562 25569 25570 25564 25566 25562 25580 25585
25582 25580 25580 25580 25582 25581 25582 25582 25580 25568 25574 25564 25562 25580 25584

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 25573 bytes 100%
1,000 25561 bytes -12 bytes 100%
10,000 25557 bytes -4 bytes 100%
100,000 25556 bytes -1 byte 3.19%
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
25632 bytes +76 bytes (+0.30%) +11 bytes
25636 bytes +80 bytes (+0.31%) +15 bytes
25621 bytes +65 bytes (+0.25%)
25628 bytes +72 bytes (+0.28%) +7 bytes
25660 bytes +104 bytes (+0.41%) +39 bytes
25652 bytes +96 bytes (+0.38%) +31 bytes
25676 bytes +120 bytes (+0.47%) +55 bytes
25704 bytes +148 bytes (+0.58%) +83 bytes
25725 bytes +169 bytes (+0.66%) +104 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 21119 bytes -4437 bytes (-17.36%)
RAR (proprietary) RAR rar a -m5 -md64m -mc63:128t -mt1 21550 bytes -4006 bytes (-15.68%)
PPMd (Wikipedia) 7zip 7za a -mx=9 -m0=ppmd 22480 bytes -3076 bytes (-12.04%)
Brotli (Wikipedia) brotli brotli -q 11 23858 bytes -1698 bytes (-6.64%)
Burrows-Wheeler transform (Wikipedia) bzip2 bzip2 -9 24169 bytes -1387 bytes (-5.43%)
LZMA2 (Wikipedia) xz xz -9 24700 bytes -856 bytes (-3.35%)
ZSTD (Wikipedia) zstd zstd -19 25226 bytes -330 bytes (-1.29%)

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