Choose a version:
31% The original file has 277627 bytes (271.1k) and is available from the project website.
There you can find the official minified version, too, which brings down the size to 85127 bytes (83.1k, 31%).

After GZIP compression these minified files vary in size:
Boot
  35551 bytes (34.7k)
 CDN
cdnjs
  31256 bytes (30.5k)
 CDN
gzip -6 (default)
  31073 bytes (30.3k)
 local copy
unpkg
  31024 bytes (30.3k)
 CDN
gzip -9
  31015 bytes (30.3k)
 local copy
libdeflate -12
  30026 bytes (29.3k)
 local copy
kzip -s0 -rn -b1
  29990 bytes (29.3k)
 local copy
7zip -mx=9 -tgzip
  29987 bytes (29.3k)
 local copy
zultra
  29957 bytes (29.3k)
 local copy
pigz -11 -n
  29925 bytes (29.2k)
 local copy
Zopfli
  29868 bytes (29.2k)
 local copy

perma-link to the smallest file on my server:
http://minime.stephan-brumme.com/files/vue/vue-2.5.1.min.js (or via HTTPS)

You will automatically get the smallest Vue 2.5.1 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 1156 bytes by using my Vue 2.5.1 Zopfli version instead of the best available CDN (3.87% smaller than unpkg, 29868 vs. 31024 bytes):
Download
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 --mls2 --bsr6 --lazy --ohh

(found October 17, 2017)
Description Value Parameter
iterations 1000000  --i1000000
maximum blocks 8  --mb8
maximum length score 2  --mls2
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

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-2.5.1.min.js --location | md5sum
96d008c97c9a5f74d947ad6d92deb215  -
curl --silent --compressed https://minime.stephan-brumme.com/files/vue/vue-2.5.1.min.zopfli.js.gz | md5sum
96d008c97c9a5f74d947ad6d92deb215  -

SHA1:
curl --silent --compressed https://raw.githubusercontent.com/vuejs/vue/vue-2.5.1.min.js --location | sha1sum
ab62628a08b92a40f91057ad26dcdb7fd0f61d02  -
curl --silent --compressed https://minime.stephan-brumme.com/files/vue/vue-2.5.1.min.zopfli.js.gz | sha1sum
ab62628a08b92a40f91057ad26dcdb7fd0f61d02  -

All listed CDNs deliver identical contents:
CDN Size (compressed) MD5 (uncompressed) Timestamp
Boot 35551 bytes 96d008c97c9a5f74d947ad6d92deb215 November 14, 2017 @ 18:15
cdnjs 31256 bytes 96d008c97c9a5f74d947ad6d92deb215 (invalid)
unpkg 31024 bytes 96d008c97c9a5f74d947ad6d92deb215 (invalid)

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

Other Versions

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

2.6.14, 2.6.13, 2.6.12, 2.6.11, 2.6.10, 2.6.9, 2.6.8, 2.6.7, 2.6.6, 2.6.5, 2.6.4, 2.6.3, 2.6.2, 2.6.1, 2.6.0, 2.5.22, 2.5.21, 2.5.20, 2.5.19, 2.5.18, 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
29868 bytes -5 bytes zopfli --i1000000 --mls2 --bsr6 --lazy --ohh October 17, 2017 @ 17:48
29873 bytes -2 bytes zopfli --i100000 --mls2 --bsr6 --lazy --ohh October 17, 2017 @ 11:34
29875 bytes -2 bytes zopfli --i10000 --mls2 --bsr6 --lazy --ohh October 16, 2017 @ 22:17
29877 bytes -2 bytes zopfli --i10000 --mls4 --bsr13 --lazy --ohh October 16, 2017 @ 21:58
29879 bytes -2 bytes zopfli --i1000 --mls2 --bsr6 --lazy --ohh October 16, 2017 @ 15:54
29881 bytes -6 bytes zopfli --i1000 --mls32 --bsr14 --lazy --ohh October 16, 2017 @ 15:43
29887 bytes – zopfli --i100 --mls2 --bsr6 --lazy --ohh October 16, 2017 @ 15:24

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

Most recent activity on July 20, 2020 @ 12:53.

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
2 29914 29923 29927 29924 29926 29936 29938 29938 29938 29939 29910 29907 29907 29905 29902
4 29889 29914 29902 29909 29908 29903 29916 29930 29929 29933 29898 29910 29907 29902 29906
6 29868 29913 29902 29902 29902 29920 29917 29923 29923 29906 29906 29903 29905 29904 29903
7 29908 29901 29905 29903 29901 29901 29917 29916 29908 29905 29903 29903 29902 29905 29903
8 29911 29908 29911 29908 29900 29901 29924 29920 29924 29906 29904 29923 29900 29920 29900
9 29907 29885 29919 29905 29901 29903 29926 29926 29924 29905 29903 29923 29904 29920 29902
10 29879 29901 29903 29906 29914 29906 29923 29924 29918 29905 29904 29924 29907 29906 29905
11 29884 29901 29900 29904 29905 29901 29906 29926 29901 29903 29906 29906 29904 29903 29902
12 29875 29874 29899 29881 29894 29903 29922 29923 29919 29922 29905 29927 29906 29902 29903
13 29880 29871 29906 29903 29904 29902 29900 29920 29908 29904 29906 29923 29902 29904 29902
14 29880 29903 29904 29903 29874 29908 29924 29926 29917 29918 29911 29904 29907 29901 29903
15 29880 29901 29901 29903 29906 29901 29909 29927 29922 29905 29904 29928 29905 29904 29903
16 29880 29901 29906 29903 29905 29900 29905 29927 29907 29905 29905 29906 29904 29905 29903
17 29909 29901 29902 29905 29901 29899 29913 29904 29905 29904 29904 29905 29907 29903 29903
18 29909 29886 29908 29905 29906 29903 29923 29918 29920 29902 29901 29903 29907 29919 29902
19 29909 29901 29909 29909 29902 29913 29919 29923 29919 29922 29905 29925 29908 29919 29902
20 29878 29901 29904 29904 29906 29913 29916 29925 29908 29922 29905 29906 29906 29905 29905
21 29883 29901 29901 29904 29902 29901 29921 29922 29907 29905 29904 29906 29904 29903 29902
22 29878 29869 29906 29903 29903 29902 29925 29926 29920 29931 29901 29905 29907 29903 29903
23 29880 29880 29901 29904 29905 29902 29909 29922 29907 29904 29905 29902 29908 29899 29902
25 29880 29901 29902 29904 29903 29916 29913 29926 29908 29922 29905 29903 29905 29901 29902
30 29881 29901 29902 29905 29903 29903 29925 29926 29919 29924 29906 29905 29907 29902 29901
40 29902 29901 29901 29905 29906 29901 29906 29923 29919 29922 29899 29903 29906 29902 29905

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 29887 bytes – 100%
1,000 29879 bytes -8 bytes 100%
10,000 29875 bytes -4 bytes 100%
100,000 29873 bytes -2 bytes 1.74%
1,000,000 29868 bytes -5 bytes 0.87%
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
(any) 29998 bytes +130 bytes (+0.44%) +8 bytes
1 29990 bytes +122 bytes (+0.41%) –
2 30006 bytes +138 bytes (+0.46%) +16 bytes
3 30018 bytes +150 bytes (+0.50%) +28 bytes
4 30002 bytes +134 bytes (+0.45%) +12 bytes
5 30021 bytes +153 bytes (+0.51%) +31 bytes
6 30056 bytes +188 bytes (+0.63%) +66 bytes
7 30085 bytes +217 bytes (+0.73%) +95 bytes
8 30065 bytes +197 bytes (+0.66%) +75 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 - for example, your browser actually supports it !
Algorithm Program Parameters Size Compared To Best Zopfli
ZPAQ (Wikipedia) zpaq zpaq -method 69 24493 bytes -5375 bytes (-18.00%)
RAR (proprietary) RAR rar a -m5 -md64m -mc63:128t -mt1 25298 bytes -4570 bytes (-15.30%)
PPMd (Wikipedia) 7zip 7za a -mx=9 -m0=ppmd 26367 bytes -3501 bytes (-11.72%)
Brotli (Wikipedia) brotli brotli -q 11 27794 bytes -2074 bytes (-6.94%)
Burrows-Wheeler transform (Wikipedia) bzip2 bzip2 -9 28366 bytes -1502 bytes (-5.03%)
LZMA2 (Wikipedia) xz xz -9 28580 bytes -1288 bytes (-4.31%)
Zstandard (Wikipedia) zstd zstd -19 29335 bytes -533 bytes (-1.78%)

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):
Load and Parse Data


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 2026.
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

All trademarks are property of their respective owners. You know, the boring legal stuff.