Vue 2.3.2 - as small as it gets (near-perfect GZIP compression)

Choose a version:

The original file has 253444 bytes (247.5k) and is available from the project website.
There you can find the official minified version, too, which brings down the size to 78582 bytes (76.7k, 31%).

After GZIP compression these minified files vary in size:

Boot	32786 bytes (32.0k)	CDN
cdnjs	28905 bytes (28.2k)	CDN
gzip -6 (default)	28736 bytes (28.1k)	local copy
unpkg	28681 bytes (28.0k)	CDN
gzip -9	28679 bytes (28.0k)	local copy
jsdelivr	28669 bytes (28.0k)	CDN
libdeflate -12	27741 bytes (27.1k)	local copy
7zip -mx=9 -tgzip	27730 bytes (27.1k)	local copy
kzip -s0 -rn -b0	27725 bytes (27.1k)	local copy
zultra	27687 bytes (27.0k)	local copy
pigz -11 -n	27673 bytes (27.0k)	local copy
Zopfli	27629 bytes (27.0k)	local copy

perma-link to the smallest file on my server:
http://minime.stephan-brumme.com/files/vue/vue-2.3.2.min.js (or via HTTPS)

You will automatically get the smallest Vue 2.3.2 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 1040 bytes by using my Vue 2.3.2 Zopfli version instead of the best available CDN (3.76% smaller than jsdelivr, 27629 vs. 28669 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 --mls8 --bsr19 --lazy --ohh

(found May 4, 2017)

Description	Value	Parameter
iterations	1000000	--i1000000
maximum blocks	8	--mb8
maximum length score	8	--mls8
block splitting recursion	19	--bsr19
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-2.3.2.min.js --location | md5sum
f8053c0cefbafc4ad8eff7f619d64b89 -
curl --silent --compressed https://minime.stephan-brumme.com/files/vue/vue-2.3.2.min.zopfli.js.gz | md5sum
f8053c0cefbafc4ad8eff7f619d64b89 -

SHA1:
curl --silent --compressed https://raw.githubusercontent.com/vuejs/vue/vue-2.3.2.min.js --location | sha1sum
bd94efca79530b1fa779a1d5baa06ba0d140018b -
curl --silent --compressed https://minime.stephan-brumme.com/files/vue/vue-2.3.2.min.zopfli.js.gz | sha1sum
bd94efca79530b1fa779a1d5baa06ba0d140018b -

All listed CDNs deliver identical contents:

CDN	Size (compressed)	MD5 (uncompressed)	Timestamp
Boot	32786 bytes	f8053c0cefbafc4ad8eff7f619d64b89	(invalid)
cdnjs	28905 bytes	f8053c0cefbafc4ad8eff7f619d64b89	(invalid)
unpkg	28681 bytes	f8053c0cefbafc4ad8eff7f619d64b89	May 4, 2017 @ 11:30
jsdelivr	28669 bytes	f8053c0cefbafc4ad8eff7f619d64b89	(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
27629 bytes	-2 bytes	zopfli --i1000000 --mls8 --bsr19 --lazy --ohh	May 4, 2017 @ 22:10
27631 bytes	-3 bytes	zopfli --i100000 --mls8 --bsr19 --lazy --ohh	May 4, 2017 @ 14:10
27634 bytes	-4 bytes	zopfli --i10000 --mls8 --bsr19 --lazy --ohh	May 4, 2017 @ 13:39
27638 bytes	-3 bytes	zopfli --i1000 --mls8 --bsr19 --lazy --ohh	May 4, 2017 @ 12:52
27641 bytes	-4 bytes	zopfli --i1000 --mls16 --bsr19 --lazy --ohh	May 4, 2017 @ 12:52
27645 bytes	–	zopfli --i100 --mls8 --bsr19 --lazy --ohh	May 4, 2017 @ 12:38

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 @ 12:54.

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	27682	27680	27682	27680	27679	27677	27678	27656	27655	27655	27665	27665	27654	27667	27681
4	27678	27664	27664	27662	27679	27677	27676	27656	27677	27652	27658	27663	27656	27661	27663
6	27653	27653	27653	27657	27652	27655	27653	27652	27658	27655	27656	27653	27655	27657	27655
7	27655	27653	27653	27656	27653	27680	27677	27676	27655	27652	27657	27665	27654	27661	27664
8	27657	27649	27645	27657	27656	27679	27659	27657	27654	27653	27652	27661	27654	27664	27658
9	27650	27651	27648	27649	27678	27654	27662	27654	27655	27652	27658	27661	27654	27660	27658
10	27656	27650	27653	27656	27669	27652	27650	27655	27657	27653	27653	27660	27656	27656	27655
11	27654	27666	27654	27655	27669	27657	27667	27654	27655	27653	27659	27661	27653	27655	27657
12	27656	27653	27652	27656	27657	27654	27653	27655	27655	27653	27654	27661	27659	27654	27654
13	27670	27657	27658	27655	27668	27653	27668	27654	27655	27653	27664	27665	27673	27662	27656
14	27657	27654	27652	27655	27651	27654	27653	27659	27655	27654	27654	27661	27653	27658	27661
15	27653	27655	27656	27658	27651	27654	27677	27653	27655	27654	27655	27661	27654	27659	27661
16	27657	27654	27652	27653	27654	27654	27657	27653	27655	27654	27652	27661	27654	27655	27658
17	27652	27654	27644	27651	27652	27652	27651	27655	27655	27654	27653	27661	27654	27659	27658
18	27652	27652	27651	27659	27652	27655	27660	27655	27655	27653	27653	27661	27655	27654	27655
19	27645	27651	27629	27633	27652	27651	27681	27658	27655	27652	27653	27667	27656	27665	27659
20	27655	27656	27653	27655	27667	27651	27652	27659	27655	27653	27660	27664	27654	27665	27658
21	27663	27658	27645	27657	27670	27679	27659	27658	27655	27654	27653	27661	27654	27654	27663
22	27664	27653	27654	27650	27668	27651	27660	27655	27655	27653	27652	27661	27655	27657	27660
23	27653	27655	27653	27656	27675	27653	27654	27654	27657	27651	27655	27661	27654	27656	27654
25	27655	27674	27670	27656	27670	27672	27662	27678	27655	27653	27653	27665	27653	27656	27659
30	27653	27654	27648	27650	27652	27653	27650	27655	27678	27653	27657	27661	27656	27658	27657
40	27652	27657	27651	27669	27670	27670	27670	27655	27654	27654	27653	27661	27654	27654	27659

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	27645 bytes	–	100%
1,000	27638 bytes	-7 bytes	100%
10,000	27634 bytes	-4 bytes	100%
100,000	27631 bytes	-3 bytes	1.74%
1,000,000	27629 bytes	-2 bytes	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)	27725 bytes	+96 bytes (+0.35%)	–
1	27727 bytes	+98 bytes (+0.35%)	+2 bytes
2	27738 bytes	+109 bytes (+0.39%)	+13 bytes
3	27741 bytes	+112 bytes (+0.41%)	+16 bytes
4	27750 bytes	+121 bytes (+0.44%)	+25 bytes
5	27739 bytes	+110 bytes (+0.40%)	+14 bytes
6	27769 bytes	+140 bytes (+0.51%)	+44 bytes
7	27800 bytes	+171 bytes (+0.62%)	+75 bytes
8	27832 bytes	+203 bytes (+0.73%)	+107 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	22865 bytes	-4764 bytes (-17.24%)
RAR (proprietary)	RAR	rar a -m5 -md64m -mc63:128t -mt1	23531 bytes	-4098 bytes (-14.83%)
PPMd (Wikipedia)	7zip	7za a -mx=9 -m0=ppmd	24262 bytes	-3367 bytes (-12.19%)
Brotli (Wikipedia)	brotli	brotli -q 11	25700 bytes	-1929 bytes (-6.98%)
Burrows-Wheeler transform (Wikipedia)	bzip2	bzip2 -9	26398 bytes	-1231 bytes (-4.46%)
LZMA2 (Wikipedia)	xz	xz -9	26496 bytes	-1133 bytes (-4.10%)
Zstandard (Wikipedia)	zstd	zstd -19	27175 bytes	-454 bytes (-1.64%)

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.