Vue 2.5.13 - as small as it gets (near-perfect GZIP compression)

Choose a version:

The original file has 285300 bytes (278.6k) and is available from the project website.
There you can find the official minified version, too, which brings down the size to 86510 bytes (84.5k, 30%).

After GZIP compression these minified files vary in size:

Boot	36044 bytes (35.2k)	CDN
cdnjs	31633 bytes (30.9k)	CDN
gzip -6 (default)	31426 bytes (30.7k)	local copy
unpkg	31411 bytes (30.7k)	CDN
gzip -9	31367 bytes (30.6k)	local copy
libdeflate -12	30383 bytes (29.7k)	local copy
7zip -mx=9 -tgzip	30336 bytes (29.6k)	local copy
kzip -s0 -rn -b1	30313 bytes (29.6k)	local copy
pigz -11 -n	30295 bytes (29.6k)	local copy
zultra	30276 bytes (29.6k)	local copy
Zopfli	30251 bytes (29.5k)	local copy
Zopfli (defluff)	30250 bytes (29.5k)	local copy

perma-link to the smallest file on my server:
http://minime.stephan-brumme.com/files/vue/vue-2.5.13.min.js (or via HTTPS)

You will automatically get the smallest Vue 2.5.13 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 1160 bytes by using my Vue 2.5.13 Zopfli version instead of the best available CDN (3.83% smaller than unpkg, 30251 vs. 31411 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 --mls16384 --bsr16 --lazy --ohh

(found December 21, 2017)

Description	Value	Parameter
iterations	1000000	--i1000000
maximum blocks	8	--mb8
maximum length score	16384	--mls16384
block splitting recursion	16	--bsr16
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

Even Smaller Files Thanks To Defluff

Zopfli's output can be further optimized by the defluff tool.
In this particular case, defluff saves 1 more byte (30250 bytes).

Download

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-2.5.13.min.js --location | md5sum
9cfa1585246355bf21ba3980f5843cdb -
curl --silent --compressed https://minime.stephan-brumme.com/files/vue/vue-2.5.13.min.zopfli.js.gz | md5sum
9cfa1585246355bf21ba3980f5843cdb -

SHA1:
curl --silent --compressed https://raw.githubusercontent.com/vuejs/vue/vue-2.5.13.min.js --location | sha1sum
2079846d5b7d244c96db4dcc7e75a82edc0f5505 -
curl --silent --compressed https://minime.stephan-brumme.com/files/vue/vue-2.5.13.min.zopfli.js.gz | sha1sum
2079846d5b7d244c96db4dcc7e75a82edc0f5505 -

All listed CDNs deliver identical contents:

CDN	Size (compressed)	MD5 (uncompressed)	Timestamp
Boot	36044 bytes	9cfa1585246355bf21ba3980f5843cdb	(invalid)
cdnjs	31633 bytes	9cfa1585246355bf21ba3980f5843cdb	(invalid)
unpkg	31411 bytes	9cfa1585246355bf21ba3980f5843cdb	(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
30251 bytes	-1 byte	zopfli --i1000000 --mls16384 --bsr16 --lazy --ohh	December 21, 2017 @ 00:09
30252 bytes	-1 byte	zopfli --i100000 --mls16384 --bsr16 --lazy --ohh	December 20, 2017 @ 17:45
30253 bytes	-1 byte	zopfli --i10000 --mls16384 --bsr9 --lazy --ohh	December 20, 2017 @ 13:20
30254 bytes	-1 byte	zopfli --i10000 --mls8192 --bsr16 --lazy --ohh	December 20, 2017 @ 13:18
30255 bytes	-2 bytes	zopfli --i10000 --mls8192 --bsr21 --lazy --ohh	December 20, 2017 @ 13:09
30257 bytes	-1 byte	zopfli --i1000 --mls16384 --bsr16 --lazy --ohh	December 20, 2017 @ 11:26
30258 bytes	-1 byte	zopfli --i1000 --mls16384 --bsr18 --lazy --ohh	December 20, 2017 @ 11:21
30259 bytes	-1 byte	zopfli --i1000 --mls16384 --bsr10 --lazy --ohh	December 20, 2017 @ 11:19
30260 bytes	-2 bytes	zopfli --i1000 --mls16384 --bsr9 --lazy --ohh	December 20, 2017 @ 11:19
30262 bytes	–	zopfli --i100 --mls16384 --bsr16 --lazy --ohh	December 20, 2017 @ 10:51

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 @ 12:56.

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	30263	30263	30263	30263	30265	30264	30265	30264	30263	30262	30270	30266	30261	30255	30262
4	30263	30271	30263	30268	30263	30263	30264	30263	30261	30264	30262	30268	30267	30266	30265
6	30277	30272	30264	30263	30264	30263	30263	30262	30264	30263	30260	30264	30251	30256	30263
7	30263	30263	30263	30263	30263	30264	30263	30266	30262	30264	30261	30267	30265	30256	30265
8	30265	30269	30265	30267	30262	30265	30267	30268	30267	30261	30259	30266	30267	30251	30263
9	30260	30271	30273	30263	30262	30266	30266	30262	30262	30264	30261	30264	30267	30253	30262
10	30262	30271	30271	30263	30261	30263	30267	30264	30267	30261	30262	30269	30267	30254	30264
11	30266	30272	30270	30263	30263	30265	30261	30263	30264	30263	30261	30267	30270	30256	30262
12	30270	30270	30273	30263	30264	30263	30266	30267	30264	30264	30260	30265	30269	30255	30261
13	30267	30270	30272	30262	30265	30263	30263	30266	30264	30264	30264	30268	30265	30256	30263
14	30271	30271	30274	30266	30263	30264	30266	30262	30262	30264	30261	30265	30268	30255	30265
15	30273	30270	30272	30267	30265	30264	30268	30263	30266	30264	30261	30267	30270	30255	30265
16	30269	30271	30273	30263	30262	30264	30268	30266	30264	30264	30258	30268	30254	30251	30268
17	30270	30270	30270	30265	30266	30262	30266	30265	30266	30259	30261	30264	30270	30256	30261
18	30260	30270	30271	30267	30264	30265	30267	30262	30264	30267	30258	30269	30268	30254	30261
19	30271	30271	30265	30263	30262	30264	30267	30263	30267	30264	30258	30264	30264	30266	30264
20	30268	30270	30267	30264	30263	30263	30266	30262	30267	30261	30262	30267	30269	30255	30267
21	30270	30269	30264	30263	30262	30264	30262	30262	30261	30262	30262	30268	30255	30255	30265
22	30268	30269	30275	30267	30266	30266	30265	30263	30266	30263	30263	30265	30263	30255	30265
23	30267	30271	30273	30263	30265	30262	30266	30263	30264	30263	30258	30266	30268	30254	30268
25	30270	30272	30271	30263	30264	30263	30262	30262	30263	30265	30262	30263	30264	30256	30265
30	30267	30270	30270	30264	30266	30263	30266	30261	30262	30263	30262	30267	30267	30254	30265
40	30268	30270	30264	30262	30265	30265	30265	30266	30263	30264	30258	30266	30268	30256	30261

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	30262 bytes	–	100%
1,000	30257 bytes	-5 bytes	100%
10,000	30253 bytes	-4 bytes	100%
100,000	30252 bytes	-1 byte	1.16%
1,000,000	30251 bytes	-1 byte	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)	30315 bytes	+64 bytes (+0.21%)	+2 bytes
1	30313 bytes	+62 bytes (+0.20%)	–
2	30347 bytes	+96 bytes (+0.32%)	+34 bytes
3	30360 bytes	+109 bytes (+0.36%)	+47 bytes
4	30364 bytes	+113 bytes (+0.37%)	+51 bytes
5	30354 bytes	+103 bytes (+0.34%)	+41 bytes
6	30386 bytes	+135 bytes (+0.45%)	+73 bytes
7	30351 bytes	+100 bytes (+0.33%)	+38 bytes
8	30374 bytes	+123 bytes (+0.41%)	+61 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	24796 bytes	-5455 bytes (-18.03%)
RAR (proprietary)	RAR	rar a -m5 -md64m -mc63:128t -mt1	25517 bytes	-4734 bytes (-15.65%)
PPMd (Wikipedia)	7zip	7za a -mx=9 -m0=ppmd	26709 bytes	-3542 bytes (-11.71%)
Brotli (Wikipedia)	brotli	brotli -q 11	28145 bytes	-2106 bytes (-6.96%)
Burrows-Wheeler transform (Wikipedia)	bzip2	bzip2 -9	28635 bytes	-1616 bytes (-5.34%)
LZMA2 (Wikipedia)	xz	xz -9	28936 bytes	-1315 bytes (-4.35%)
Zstandard (Wikipedia)	zstd	zstd -19	29672 bytes	-579 bytes (-1.91%)

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.