Vue 2.1.1 - as small as it gets (near-perfect GZIP compression)

Choose a version:

The original file has 210897 bytes (206.0k) and is available from the project website.
There you can find the official minified version, too, which brings down the size to 69228 bytes (67.6k, 33%).

After GZIP compression these minified files vary in size:

Boot	29012 bytes (28.3k)	CDN
cdnjs	25492 bytes (24.9k)	CDN
gzip -6 (default)	25330 bytes (24.7k)	local copy
unpkg	25328 bytes (24.7k)	CDN
gzip -9	25315 bytes (24.7k)	local copy
jsdelivr	25294 bytes (24.7k)	CDN
7zip -mx=9 -tgzip	24506 bytes (23.9k)	local copy
libdeflate -12	24492 bytes (23.9k)	local copy
kzip -s0 -rn -b1	24491 bytes (23.9k)	local copy
pigz -11 -n	24474 bytes (23.9k)	local copy
zultra	24457 bytes (23.9k)	local copy
Zopfli	24397 bytes (23.8k)	local copy

perma-link to the smallest file on my server:
http://minime.stephan-brumme.com/files/vue/vue-2.1.1.min.js (or via HTTPS)

You will automatically get the smallest Vue 2.1.1 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 897 bytes by using my Vue 2.1.1 Zopfli version instead of the best available CDN (3.68% smaller than jsdelivr, 24397 vs. 25294 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 --i100000 --mb8 --mls512 --bsr17 --lazy --ohh

(found April 4, 2017)

Description	Value	Parameter
iterations	100000	--i100000
maximum blocks	8	--mb8
maximum length score	512	--mls512
block splitting recursion	17	--bsr17
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-2.1.1.min.js --location | md5sum
a851c1d868694652fa226038f6a2ff6c -
curl --silent --compressed https://minime.stephan-brumme.com/files/vue/vue-2.1.1.min.zopfli.js.gz | md5sum
a851c1d868694652fa226038f6a2ff6c -

SHA1:
curl --silent --compressed https://raw.githubusercontent.com/vuejs/vue/vue-2.1.1.min.js --location | sha1sum
ee536309df9ed1f6525fc3ca7a6b5f9147f1d7e8 -
curl --silent --compressed https://minime.stephan-brumme.com/files/vue/vue-2.1.1.min.zopfli.js.gz | sha1sum
ee536309df9ed1f6525fc3ca7a6b5f9147f1d7e8 -

All listed CDNs deliver identical contents:

CDN	Size (compressed)	MD5 (uncompressed)	Timestamp
Boot	29012 bytes	a851c1d868694652fa226038f6a2ff6c	(invalid)
cdnjs	25492 bytes	a851c1d868694652fa226038f6a2ff6c	(invalid)
unpkg	25328 bytes	a851c1d868694652fa226038f6a2ff6c	April 4, 2017 @ 10:09
jsdelivr	25294 bytes	a851c1d868694652fa226038f6a2ff6c	(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
24397 bytes	-1 byte	zopfli --i100000 --mls512 --bsr17 --lazy --ohh	April 4, 2017 @ 17:54
24398 bytes	-2 bytes	zopfli --i100000 --mls512 --bsr22 --lazy --ohh	April 4, 2017 @ 13:29
24400 bytes	-4 bytes	zopfli --i10000 --mls512 --bsr22 --lazy --ohh	April 4, 2017 @ 11:22
24404 bytes	-2 bytes	zopfli --i1000 --mls512 --bsr22 --lazy --ohh	April 4, 2017 @ 10:40
24406 bytes	–	zopfli --i100 --mls512 --bsr17 --lazy --ohh	April 4, 2017 @ 10:18

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 @ 12:50.

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
2	24460	24463	24459	24453	24455	24451	24445	24449	24445	24461	24461	24462	24461	24462	24456
4	24440	24440	24443	24439	24444	24444	24447	24446	24446	24460	24444	24459	24461	24454	24455
6	24448	24439	24433	24451	24446	24439	24449	24440	24398	24457	24461	24456	24459	24453	24457
7	24446	24437	24452	24433	24436	24433	24428	24441	24446	24457	24453	24462	24463	24449	24456
8	24409	24408	24407	24416	24410	24444	24408	24401	24403	24407	24456	24457	24438	24450	24455
9	24442	24427	24437	24441	24438	24428	24434	24440	24446	24460	24441	24445	24446	24455	24454
10	24440	24433	24437	24438	24439	24430	24430	24442	24442	24461	24440	24443	24432	24453	24456
11	24440	24433	24436	24439	24438	24426	24439	24440	24407	24404	24440	24445	24446	24454	24456
12	24429	24432	24446	24438	24441	24437	24438	24439	24403	24440	24437	24439	24442	24457	24453
13	24424	24428	24426	24425	24423	24426	24437	24440	24400	24460	24440	24439	24440	24445	24455
14	24424	24426	24424	24428	24423	24426	24435	24439	24445	24439	24442	24437	24442	24442	24455
15	24436	24435	24434	24435	24438	24428	24437	24439	24440	24457	24440	24455	24441	24450	24455
16	24437	24438	24443	24441	24411	24402	24407	24459	24401	24407	24460	24455	24442	24453	24455
17	24434	24431	24436	24424	24437	24430	24407	24445	24397	24405	24460	24454	24449	24453	24453
18	24433	24441	24437	24441	24414	24426	24444	24442	24404	24403	24460	24457	24445	24455	24456
19	24432	24432	24423	24426	24424	24425	24432	24447	24440	24405	24437	24444	24446	24450	24455
20	24432	24431	24425	24422	24435	24424	24435	24441	24442	24460	24437	24455	24444	24448	24454
21	24434	24440	24438	24436	24439	24426	24423	24442	24402	24461	24441	24444	24442	24456	24454
22	24434	24439	24435	24440	24407	24427	24406	24440	24398	24406	24442	24439	24463	24449	24449
23	24423	24428	24431	24441	24439	24423	24438	24444	24444	24406	24442	24444	24446	24457	24454
25	24432	24431	24437	24441	24441	24425	24438	24439	24404	24458	24441	24437	24445	24440	24452
30	24434	24427	24436	24438	24440	24432	24440	24439	24406	24406	24443	24445	24439	24442	24454
40	24431	24442	24441	24440	24430	24427	24437	24441	24404	24409	24441	24443	24456	24450	24456

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	24406 bytes	–	100%
1,000	24404 bytes	-2 bytes	100%
10,000	24400 bytes	-4 bytes	100%
100,000	24397 bytes	-3 bytes	1.74%
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
(any)	24491 bytes	+94 bytes (+0.39%)	–
1	24491 bytes	+94 bytes (+0.39%)	–
2	24505 bytes	+108 bytes (+0.44%)	+14 bytes
3	24503 bytes	+106 bytes (+0.43%)	+12 bytes
4	24511 bytes	+114 bytes (+0.47%)	+20 bytes
5	24525 bytes	+128 bytes (+0.52%)	+34 bytes
6	24562 bytes	+165 bytes (+0.68%)	+71 bytes
7	24592 bytes	+195 bytes (+0.80%)	+101 bytes
8	24612 bytes	+215 bytes (+0.88%)	+121 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	20597 bytes	-3800 bytes (-15.58%)
RAR (proprietary)	RAR	rar a -m5 -md64m -mc63:128t -mt1	20993 bytes	-3404 bytes (-13.95%)
PPMd (Wikipedia)	7zip	7za a -mx=9 -m0=ppmd	21057 bytes	-3340 bytes (-13.69%)
Brotli (Wikipedia)	brotli	brotli -q 11	22839 bytes	-1558 bytes (-6.39%)
Burrows-Wheeler transform (Wikipedia)	bzip2	bzip2 -9	23534 bytes	-863 bytes (-3.54%)
LZMA2 (Wikipedia)	xz	xz -9	23568 bytes	-829 bytes (-3.40%)
Zstandard (Wikipedia)	zstd	zstd -19	24116 bytes	-281 bytes (-1.15%)

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.