Vue 2.5.11 - as small as it gets (near-perfect GZIP compression)

Choose a version:

The original file has 284579 bytes (277.9k) and is available from the project website.
There you can find the official minified version, too, which brings down the size to 86245 bytes (84.2k, 30%).

After GZIP compression these minified files vary in size:

Boot	35963 bytes (35.1k)	CDN
cdnjs	31554 bytes (30.8k)	CDN
gzip -6 (default)	31341 bytes (30.6k)	local copy
unpkg	31323 bytes (30.6k)	CDN
gzip -9	31286 bytes (30.6k)	local copy
libdeflate -12	30290 bytes (29.6k)	local copy
7zip -mx=9 -tgzip	30266 bytes (29.6k)	local copy
kzip -s0 -rn -b1	30234 bytes (29.5k)	local copy
pigz -11 -n	30213 bytes (29.5k)	local copy
zultra	30191 bytes (29.5k)	local copy
Zopfli	30175 bytes (29.5k)	local copy
Zopfli (defluff)	30174 bytes (29.5k)	local copy

perma-link to the smallest file on my server:
http://minime.stephan-brumme.com/files/vue/vue-2.5.11.min.js (or via HTTPS)

You will automatically get the smallest Vue 2.5.11 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 1148 bytes by using my Vue 2.5.11 Zopfli version instead of the best available CDN (3.80% smaller than unpkg, 30175 vs. 31323 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 --bsr40 --lazy --ohh

(found December 16, 2017)

Description	Value	Parameter
iterations	1000000	--i1000000
maximum blocks	8	--mb8
maximum length score	16384	--mls16384
block splitting recursion	40	--bsr40
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 (30174 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-2.5.11.min.js --location | md5sum
5423bca24e560daa59c8ea3e97629f37 -
curl --silent --compressed https://minime.stephan-brumme.com/files/vue/vue-2.5.11.min.zopfli.js.gz | md5sum
5423bca24e560daa59c8ea3e97629f37 -

SHA1:
curl --silent --compressed https://raw.githubusercontent.com/vuejs/vue/vue-2.5.11.min.js --location | sha1sum
804e7d818d2deca9f3c5c114293010c0a8fa7a82 -
curl --silent --compressed https://minime.stephan-brumme.com/files/vue/vue-2.5.11.min.zopfli.js.gz | sha1sum
804e7d818d2deca9f3c5c114293010c0a8fa7a82 -

All listed CDNs deliver identical contents:

CDN	Size (compressed)	MD5 (uncompressed)	Timestamp
Boot	35963 bytes	5423bca24e560daa59c8ea3e97629f37	December 20, 2017 @ 03:30
cdnjs	31554 bytes	5423bca24e560daa59c8ea3e97629f37	(invalid)
unpkg	31323 bytes	5423bca24e560daa59c8ea3e97629f37	(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
30175 bytes	-2 bytes	zopfli --i1000000 --mls16384 --bsr40 --lazy --ohh	December 16, 2017 @ 18:35
30177 bytes	-1 byte	zopfli --i100000 --mls16384 --bsr40 --lazy --ohh	December 16, 2017 @ 14:00
30178 bytes	-1 byte	zopfli --i10000 --mls16384 --bsr14 --lazy --ohh	December 16, 2017 @ 13:53
30179 bytes	-5 bytes	zopfli --i10000 --mls16384 --bsr40 --lazy --ohh	December 16, 2017 @ 13:38
30184 bytes	-1 byte	zopfli --i1000 --mls16384 --bsr40 --lazy --ohh	December 16, 2017 @ 13:30
30185 bytes	-1 byte	zopfli --i1000 --mls16384 --bsr7 --lazy --ohh	December 16, 2017 @ 13:30
30186 bytes	-1 byte	zopfli --i1000 --mls16384 --bsr25 --lazy --ohh	December 16, 2017 @ 13:29
30187 bytes	–	zopfli --i100 --mls16384 --bsr18 --lazy --ohh	December 16, 2017 @ 13:29

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	30187	30192	30187	30188	30188	30187	30188	30187	30185	30187	30188	30187	30189	30191	30188
4	30186	30185	30193	30190	30189	30188	30183	30185	30188	30186	30188	30185	30188	30181	30194
6	30197	30186	30185	30198	30194	30188	30184	30187	30186	30181	30183	30190	30181	30182	30186
7	30192	30198	30195	30191	30187	30191	30186	30185	30185	30183	30186	30193	30185	30180	30191
8	30185	30185	30183	30183	30191	30188	30191	30187	30188	30188	30186	30187	30187	30181	30188
9	30183	30186	30200	30187	30186	30187	30189	30185	30188	30186	30189	30191	30182	30180	30191
10	30197	30194	30192	30187	30189	30184	30190	30186	30187	30185	30187	30190	30190	30184	30189
11	30197	30198	30191	30190	30184	30186	30186	30185	30185	30188	30189	30191	30190	30180	30189
12	30197	30195	30194	30184	30188	30186	30191	30188	30190	30185	30185	30190	30188	30180	30185
13	30192	30195	30198	30189	30190	30185	30191	30185	30188	30185	30185	30190	30189	30180	30190
14	30196	30197	30193	30188	30188	30188	30191	30188	30188	30185	30185	30193	30190	30178	30188
15	30195	30194	30196	30183	30188	30184	30187	30188	30187	30187	30183	30190	30190	30180	30190
16	30192	30197	30194	30195	30188	30185	30191	30188	30187	30186	30182	30188	30179	30185	30188
17	30196	30196	30192	30190	30188	30188	30189	30186	30188	30184	30185	30191	30191	30181	30185
18	30196	30198	30193	30190	30190	30188	30188	30189	30182	30186	30182	30190	30193	30180	30193
19	30193	30197	30196	30183	30188	30188	30183	30189	30188	30185	30183	30199	30190	30182	30193
20	30196	30195	30194	30187	30192	30186	30189	30185	30183	30189	30186	30192	30187	30181	30186
21	30197	30194	30192	30194	30188	30183	30190	30188	30187	30188	30186	30191	30180	30180	30191
22	30193	30196	30195	30186	30192	30187	30187	30187	30189	30188	30189	30191	30186	30180	30186
23	30195	30197	30194	30189	30187	30186	30188	30190	30188	30188	30183	30188	30192	30181	30193
25	30195	30194	30193	30188	30189	30190	30191	30189	30187	30185	30185	30191	30185	30180	30188
30	30193	30193	30196	30183	30192	30184	30189	30187	30188	30189	30186	30190	30190	30181	30191
40	30196	30197	30198	30196	30187	30190	30188	30185	30188	30184	30186	30188	30179	30175	30189

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	30187 bytes	–	100%
1,000	30184 bytes	-3 bytes	100%
10,000	30178 bytes	-6 bytes	100%
100,000	30177 bytes	-1 byte	0.58%
1,000,000	30175 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)	30234 bytes	+59 bytes (+0.20%)	–
1	30234 bytes	+59 bytes (+0.20%)	–
2	30270 bytes	+95 bytes (+0.31%)	+36 bytes
3	30277 bytes	+102 bytes (+0.34%)	+43 bytes
4	30282 bytes	+107 bytes (+0.35%)	+48 bytes
5	30277 bytes	+102 bytes (+0.34%)	+43 bytes
6	30311 bytes	+136 bytes (+0.45%)	+77 bytes
7	30276 bytes	+101 bytes (+0.33%)	+42 bytes
8	30301 bytes	+126 bytes (+0.42%)	+67 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	24766 bytes	-5409 bytes (-17.93%)
RAR (proprietary)	RAR	rar a -m5 -md64m -mc63:128t -mt1	25453 bytes	-4722 bytes (-15.65%)
PPMd (Wikipedia)	7zip	7za a -mx=9 -m0=ppmd	26670 bytes	-3505 bytes (-11.62%)
Brotli (Wikipedia)	brotli	brotli -q 11	28048 bytes	-2127 bytes (-7.05%)
Burrows-Wheeler transform (Wikipedia)	bzip2	bzip2 -9	28565 bytes	-1610 bytes (-5.34%)
LZMA2 (Wikipedia)	xz	xz -9	28864 bytes	-1311 bytes (-4.34%)
Zstandard (Wikipedia)	zstd	zstd -19	29581 bytes	-594 bytes (-1.97%)

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.