Vue 2.6.11 - as small as it gets (near-perfect GZIP compression)

Choose a version:

The original file has 342146 bytes (334.1k) and is available from the project website.
There you can find the official minified version, too, which brings down the size to 93670 bytes (91.5k, 27%).

After GZIP compression these minified files vary in size:

unpkg	39472 bytes (38.5k)	CDN
cdnjs	34313 bytes (33.5k)	CDN
gzip -6 (default)	34118 bytes (33.3k)	local copy
Boot	34103 bytes (33.3k)	CDN
gzip -9	34053 bytes (33.3k)	local copy
libdeflate -12	32885 bytes (32.1k)	local copy
7zip -mx=9 -tgzip	32856 bytes (32.1k)	local copy
kzip -s0 -rn -b4	32819 bytes (32.0k)	local copy
pigz -11 -n	32816 bytes (32.0k)	local copy
zultra	32804 bytes (32.0k)	local copy
Zopfli	32739 bytes (32.0k)	local copy

perma-link to the smallest file on my server:
http://minime.stephan-brumme.com/files/vue/vue-2.6.11.min.js (or via HTTPS)

You will automatically get the smallest Vue 2.6.11 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 1364 bytes by using my Vue 2.6.11 Zopfli version instead of the best available CDN (4.17% smaller than Boot, 32739 vs. 34103 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 --mls4 --bsr12 --lazy --ohh

(found December 17, 2019)

Description	Value	Parameter
iterations	1000000	--i1000000
maximum blocks	8	--mb8
maximum length score	4	--mls4
block splitting recursion	12	--bsr12
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-2.6.11.min.js --location | md5sum
6c81f02ad0bf8e12a66c18cab188d029 -
curl --silent --compressed https://minime.stephan-brumme.com/files/vue/vue-2.6.11.min.zopfli.js.gz | md5sum
6c81f02ad0bf8e12a66c18cab188d029 -

SHA1:
curl --silent --compressed https://raw.githubusercontent.com/vuejs/vue/vue-2.6.11.min.js --location | sha1sum
abd239f02966b2d324b0512c203bdbaf82a4ed7a -
curl --silent --compressed https://minime.stephan-brumme.com/files/vue/vue-2.6.11.min.zopfli.js.gz | sha1sum
abd239f02966b2d324b0512c203bdbaf82a4ed7a -

All listed CDNs deliver identical contents:

CDN	Size (compressed)	MD5 (uncompressed)	Timestamp
unpkg	39472 bytes	6c81f02ad0bf8e12a66c18cab188d029	(invalid)
cdnjs	34313 bytes	6c81f02ad0bf8e12a66c18cab188d029	January 30, 2020 @ 12:46
Boot	34103 bytes	6c81f02ad0bf8e12a66c18cab188d029	January 30, 2020 @ 12:46

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
32739 bytes	-1 byte	zopfli --i1000000 --mls4 --bsr12 --lazy --ohh	December 17, 2019 @ 15:10
32740 bytes	-1 byte	zopfli --i100000 --mls4 --bsr12 --lazy --ohh	December 16, 2019 @ 20:24
32741 bytes	-2 bytes	zopfli --i100000 --mls32 --bsr12 --lazy --ohh	December 16, 2019 @ 19:42
32743 bytes	-1 byte	zopfli --i100000 --mls4 --bsr10 --lazy --ohh	December 16, 2019 @ 19:01
32744 bytes	-2 bytes	zopfli --i10000 --mls4 --bsr10 --lazy --ohh	December 16, 2019 @ 18:14
32746 bytes	-2 bytes	zopfli --i1000 --mls4 --bsr10 --lazy --ohh	December 16, 2019 @ 17:56
32748 bytes	-9 bytes	zopfli --i1000 --mls4 --bsr23 --lazy --ohh	December 16, 2019 @ 17:56
32757 bytes	–	zopfli --i100 --mls32 --bsr12 --lazy --ohh	December 16, 2019 @ 17:53

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 @ 12:55.

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	32785	32789	32805	32785	32794	32787	32795	32790	32792	32791	32802	32772	32773	32787	32794
4	32761	32760	32755	32783	32804	32807	32805	32797	32793	32790	32784	32778	32771	32772	32791
6	32800	32809	32800	32798	32795	32793	32796	32793	32793	32793	32778	32774	32772	32784	32792
7	32803	32778	32775	32779	32784	32807	32799	32791	32801	32787	32776	32781	32774	32778	32789
8	32761	32754	32801	32801	32755	32802	32792	32798	32792	32785	32778	32777	32773	32770	32793
9	32759	32801	32772	32754	32761	32792	32797	32775	32788	32794	32778	32771	32771	32774	32794
10	32757	32743	32801	32779	32783	32796	32800	32791	32794	32792	32775	32773	32771	32777	32794
11	32757	32803	32757	32800	32757	32799	32794	32792	32800	32792	32778	32775	32772	32772	32792
12	32755	32739	32756	32779	32741	32795	32796	32794	32800	32790	32777	32777	32772	32775	32792
13	32805	32808	32797	32798	32794	32795	32789	32791	32788	32792	32771	32773	32772	32772	32787
14	32759	32755	32801	32782	32798	32799	32798	32794	32784	32794	32778	32782	32773	32773	32789
15	32800	32807	32793	32758	32805	32793	32797	32792	32799	32787	32777	32782	32772	32781	32792
16	32752	32755	32756	32757	32782	32802	32792	32791	32792	32792	32780	32781	32773	32773	32793
17	32802	32806	32801	32804	32795	32802	32796	32788	32800	32792	32777	32781	32772	32773	32791
18	32805	32807	32801	32806	32793	32803	32789	32791	32789	32792	32777	32774	32771	32777	32788
19	32758	32808	32767	32779	32793	32792	32794	32791	32793	32794	32777	32779	32779	32780	32789
20	32759	32758	32757	32755	32793	32801	32796	32792	32797	32796	32775	32780	32772	32779	32793
21	32794	32802	32801	32801	32792	32798	32789	32794	32802	32795	32777	32771	32771	32771	32793
22	32793	32801	32798	32782	32795	32801	32795	32795	32792	32793	32776	32782	32770	32771	32792
23	32759	32745	32756	32782	32758	32794	32796	32791	32788	32792	32777	32779	32771	32770	32794
25	32804	32802	32760	32761	32792	32799	32796	32793	32788	32793	32778	32777	32771	32770	32790
30	32802	32800	32800	32801	32797	32799	32798	32792	32793	32788	32780	32775	32770	32770	32791
40	32802	32801	32799	32781	32794	32799	32796	32792	32796	32787	32778	32782	32771	32780	32790

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	32757 bytes	–	100%
1,000	32746 bytes	-11 bytes	100%
10,000	32744 bytes	-2 bytes	100%
100,000	32740 bytes	-4 bytes	0.87%
1,000,000	32739 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
(any)	32891 bytes	+152 bytes (+0.46%)	+72 bytes
1	32889 bytes	+150 bytes (+0.46%)	+70 bytes
2	32891 bytes	+152 bytes (+0.46%)	+72 bytes
3	32883 bytes	+144 bytes (+0.44%)	+64 bytes
4	32819 bytes	+80 bytes (+0.24%)	–
5	32823 bytes	+84 bytes (+0.26%)	+4 bytes
6	32848 bytes	+109 bytes (+0.33%)	+29 bytes
7	32845 bytes	+106 bytes (+0.32%)	+26 bytes
8	32881 bytes	+142 bytes (+0.43%)	+62 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	26998 bytes	-5741 bytes (-17.54%)
RAR (proprietary)	RAR	rar a -m5 -md64m -mc63:128t -mt1	28009 bytes	-4730 bytes (-14.45%)
PPMd (Wikipedia)	7zip	7za a -mx=9 -m0=ppmd	29049 bytes	-3690 bytes (-11.27%)
Brotli (Wikipedia)	brotli	brotli -q 11	30773 bytes	-1966 bytes (-6.01%)
Burrows-Wheeler transform (Wikipedia)	bzip2	bzip2 -9	31401 bytes	-1338 bytes (-4.09%)
LZMA2 (Wikipedia)	xz	xz -9	31516 bytes	-1223 bytes (-3.74%)
Zstandard (Wikipedia)	zstd	zstd -19	32159 bytes	-580 bytes (-1.77%)

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.