Vue 2.3.0 - as small as it gets (near-perfect GZIP compression)

Choose a version:

The original file has 253241 bytes (247.3k) and is available from the project website.
There you can find the official minified version, too, which brings down the size to 78479 bytes (76.6k, 31%).

After GZIP compression these minified files vary in size:

Boot	32774 bytes (32.0k)	CDN
unpkg	31759 bytes (31.0k)	CDN
cdnjs	28883 bytes (28.2k)	CDN
gzip -6 (default)	28717 bytes (28.0k)	local copy
gzip -9	28660 bytes (28.0k)	local copy
jsdelivr	28647 bytes (28.0k)	CDN
libdeflate -12	27718 bytes (27.1k)	local copy
7zip -mx=9 -tgzip	27705 bytes (27.1k)	local copy
kzip -s0 -rn -b0	27699 bytes (27.0k)	local copy
zultra	27657 bytes (27.0k)	local copy
pigz -11 -n	27652 bytes (27.0k)	local copy
Zopfli	27608 bytes (27.0k)	local copy

perma-link to the smallest file on my server:
http://minime.stephan-brumme.com/files/vue/vue-2.3.0.min.js (or via HTTPS)

You will automatically get the smallest Vue 2.3.0 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 1039 bytes by using my Vue 2.3.0 Zopfli version instead of the best available CDN (3.76% smaller than jsdelivr, 27608 vs. 28647 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 April 28, 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-2.3.0.min.js --location | md5sum
e92b692efff834c1199f8668dd780f3b -
curl --silent --compressed https://minime.stephan-brumme.com/files/vue/vue-2.3.0.min.zopfli.js.gz | md5sum
e92b692efff834c1199f8668dd780f3b -

SHA1:
curl --silent --compressed https://raw.githubusercontent.com/vuejs/vue/vue-2.3.0.min.js --location | sha1sum
4e7761d6f9f23ba54b529e048d20f93b04ce1af0 -
curl --silent --compressed https://minime.stephan-brumme.com/files/vue/vue-2.3.0.min.zopfli.js.gz | sha1sum
4e7761d6f9f23ba54b529e048d20f93b04ce1af0 -

All listed CDNs deliver identical contents:

CDN	Size (compressed)	MD5 (uncompressed)	Timestamp
Boot	32774 bytes	e92b692efff834c1199f8668dd780f3b	April 27, 2017 @ 15:22
unpkg	31759 bytes	e92b692efff834c1199f8668dd780f3b	April 27, 2017 @ 17:18
cdnjs	28883 bytes	e92b692efff834c1199f8668dd780f3b	(invalid)
jsdelivr	28647 bytes	e92b692efff834c1199f8668dd780f3b	(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
27608 bytes	-1 byte	zopfli --i1000000 --mls2 --bsr6 --lazy --ohh	April 28, 2017 @ 12:51
27609 bytes	-3 bytes	zopfli --i100000 --mls2 --bsr9 --lazy --ohh	April 27, 2017 @ 18:29
27612 bytes	-1 byte	zopfli --i10000 --mls2 --bsr9 --lazy --ohh	April 27, 2017 @ 17:49
27613 bytes	-1 byte	zopfli --i10000 --mls2 --bsr6 --lazy --ohh	April 27, 2017 @ 17:48
27614 bytes	-3 bytes	zopfli --i10000 --mls16 --bsr9 --lazy --ohh	April 27, 2017 @ 17:32
27617 bytes	-1 byte	zopfli --i1000 --mls16 --bsr9 --lazy --ohh	April 27, 2017 @ 17:28
27618 bytes	-1 byte	zopfli --i1000 --mls2 --bsr6 --lazy --ohh	April 27, 2017 @ 17:28
27619 bytes	-3 bytes	zopfli --i1000 --mls4 --bsr19 --lazy --ohh	April 27, 2017 @ 17:28
27622 bytes	–	zopfli --i100 --mls2 --bsr9 --lazy --ohh	April 27, 2017 @ 17:24

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 @ 12:48.

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	27661	27660	27660	27663	27656	27656	27655	27631	27636	27631	27642	27642	27633	27644	27657
4	27638	27639	27637	27638	27655	27653	27654	27633	27625	27625	27635	27639	27634	27645	27635
6	27608	27627	27615	27629	27630	27627	27633	27637	27637	27630	27645	27629	27639	27633	27633
7	27627	27630	27625	27629	27657	27628	27626	27628	27628	27625	27628	27640	27640	27629	27627
8	27639	27626	27626	27632	27630	27626	27658	27632	27656	27628	27626	27642	27637	27629	27628
9	27609	27618	27628	27613	27636	27626	27628	27642	27629	27630	27627	27633	27638	27631	27636
10	27626	27625	27625	27631	27646	27624	27625	27633	27628	27625	27627	27640	27638	27638	27632
11	27634	27633	27632	27631	27623	27635	27654	27628	27629	27629	27629	27629	27638	27635	27632
12	27631	27630	27630	27632	27650	27627	27629	27627	27636	27626	27627	27630	27635	27632	27635
13	27641	27629	27630	27629	27646	27636	27650	27629	27629	27628	27634	27633	27633	27640	27630
14	27637	27635	27638	27636	27635	27638	27626	27642	27637	27630	27627	27627	27638	27629	27639
15	27616	27635	27628	27633	27631	27628	27626	27627	27628	27625	27634	27630	27632	27627	27633
16	27627	27620	27630	27624	27628	27634	27625	27628	27625	27625	27627	27629	27632	27632	27629
17	27624	27624	27624	27632	27631	27638	27657	27628	27638	27628	27627	27629	27636	27633	27633
18	27624	27626	27627	27632	27635	27635	27626	27627	27628	27627	27626	27630	27636	27629	27649
19	27615	27615	27621	27631	27631	27626	27626	27642	27629	27627	27628	27625	27634	27631	27650
20	27628	27627	27621	27629	27635	27634	27653	27629	27629	27626	27626	27629	27632	27630	27635
21	27635	27616	27625	27629	27629	27628	27629	27629	27628	27628	27627	27640	27641	27631	27635
22	27617	27612	27626	27627	27650	27630	27627	27629	27628	27627	27626	27630	27632	27631	27639
23	27632	27625	27624	27628	27647	27634	27650	27627	27635	27627	27627	27627	27635	27630	27633
25	27631	27648	27651	27645	27646	27649	27649	27641	27641	27625	27628	27627	27634	27632	27631
30	27624	27630	27624	27625	27629	27627	27625	27647	27629	27627	27628	27629	27635	27633	27627
40	27638	27630	27622	27645	27646	27626	27649	27628	27637	27626	27629	27627	27634	27630	27629

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	27622 bytes	–	100%
1,000	27617 bytes	-5 bytes	100%
10,000	27612 bytes	-5 bytes	100%
100,000	27609 bytes	-3 bytes	1.16%
1,000,000	27608 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)	27699 bytes	+91 bytes (+0.33%)	–
1	27703 bytes	+95 bytes (+0.34%)	+4 bytes
2	27713 bytes	+105 bytes (+0.38%)	+14 bytes
3	27717 bytes	+109 bytes (+0.39%)	+18 bytes
4	27726 bytes	+118 bytes (+0.43%)	+27 bytes
5	27713 bytes	+105 bytes (+0.38%)	+14 bytes
6	27741 bytes	+133 bytes (+0.48%)	+42 bytes
7	27774 bytes	+166 bytes (+0.60%)	+75 bytes
8	27807 bytes	+199 bytes (+0.72%)	+108 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	22850 bytes	-4758 bytes (-17.23%)
RAR (proprietary)	RAR	rar a -m5 -md64m -mc63:128t -mt1	23516 bytes	-4092 bytes (-14.82%)
PPMd (Wikipedia)	7zip	7za a -mx=9 -m0=ppmd	24216 bytes	-3392 bytes (-12.29%)
Brotli (Wikipedia)	brotli	brotli -q 11	25719 bytes	-1889 bytes (-6.84%)
Burrows-Wheeler transform (Wikipedia)	bzip2	bzip2 -9	26402 bytes	-1206 bytes (-4.37%)
LZMA2 (Wikipedia)	xz	xz -9	26480 bytes	-1128 bytes (-4.09%)
Zstandard (Wikipedia)	zstd	zstd -19	27158 bytes	-450 bytes (-1.63%)

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.