Vue 2.4.1 - as small as it gets (near-perfect GZIP compression)

Choose a version:

The original file has 264100 bytes (257.9k) and is available from the project website.
There you can find the official minified version, too, which brings down the size to 81626 bytes (79.7k, 31%).

After GZIP compression these minified files vary in size:

Boot	33976 bytes (33.2k)	CDN
cdnjs	29871 bytes (29.2k)	CDN
gzip -6 (default)	29669 bytes (29.0k)	local copy
unpkg	29651 bytes (29.0k)	CDN
gzip -9	29635 bytes (28.9k)	local copy
libdeflate -12	28734 bytes (28.1k)	local copy
7zip -mx=9 -tgzip	28685 bytes (28.0k)	local copy
kzip -s0 -rn -b0	28672 bytes (28.0k)	local copy
pigz -11 -n	28623 bytes (28.0k)	local copy
zultra	28621 bytes (28.0k)	local copy
Zopfli	28595 bytes (27.9k)	local copy

perma-link to the smallest file on my server:
http://minime.stephan-brumme.com/files/vue/vue-2.4.1.min.js (or via HTTPS)

You will automatically get the smallest Vue 2.4.1 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 1056 bytes by using my Vue 2.4.1 Zopfli version instead of the best available CDN (3.69% smaller than unpkg, 28595 vs. 29651 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 --mls8192 --bsr11 --lazy --ohh

(found July 18, 2017)

Description	Value	Parameter
iterations	1000000	--i1000000
maximum blocks	8	--mb8
maximum length score	8192	--mls8192
block splitting recursion	11	--bsr11
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-2.4.1.min.js --location | md5sum
807a5d77fb2f341e03d4d1faa0e78f38 -
curl --silent --compressed https://minime.stephan-brumme.com/files/vue/vue-2.4.1.min.zopfli.js.gz | md5sum
807a5d77fb2f341e03d4d1faa0e78f38 -

SHA1:
curl --silent --compressed https://raw.githubusercontent.com/vuejs/vue/vue-2.4.1.min.js --location | sha1sum
0e01b421c05bf159d9e09aa7360311649278f3b0 -
curl --silent --compressed https://minime.stephan-brumme.com/files/vue/vue-2.4.1.min.zopfli.js.gz | sha1sum
0e01b421c05bf159d9e09aa7360311649278f3b0 -

All listed CDNs deliver identical contents:

CDN	Size (compressed)	MD5 (uncompressed)	Timestamp
Boot	33976 bytes	807a5d77fb2f341e03d4d1faa0e78f38	(invalid)
cdnjs	29871 bytes	807a5d77fb2f341e03d4d1faa0e78f38	(invalid)
unpkg	29651 bytes	807a5d77fb2f341e03d4d1faa0e78f38	July 17, 2017 @ 17:59

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
28595 bytes	-2 bytes	zopfli --i1000000 --mls8192 --bsr11 --lazy --ohh	July 18, 2017 @ 14:36
28597 bytes	-2 bytes	zopfli --i100000 --mls8192 --bsr11 --lazy --ohh	July 17, 2017 @ 22:32
28599 bytes	-1 byte	zopfli --i10000 --mls8192 --bsr11 --lazy --ohh	July 17, 2017 @ 20:29
28600 bytes	-2 bytes	zopfli --i10000 --mls16384 --bsr9 --lazy --ohh	July 17, 2017 @ 20:07
28602 bytes	-1 byte	zopfli --i1000 --mls16384 --bsr19 --lazy --ohh	July 17, 2017 @ 18:44
28603 bytes	-1 byte	zopfli --i1000 --mls16384 --bsr9 --lazy --ohh	July 17, 2017 @ 18:42
28604 bytes	-1 byte	zopfli --i1000 --mls64 --bsr12 --lazy --ohh	July 17, 2017 @ 18:32
28605 bytes	-2 bytes	zopfli --i1000 --mls1024 --bsr6 --lazy --ohh	July 17, 2017 @ 18:30
28607 bytes	-1 byte	zopfli --i1000 --mls2048 --bsr8 --lazy --ohh	July 17, 2017 @ 18:29
28608 bytes	-2 bytes	zopfli --i1000 --mls2048 --bsr10 --lazy --ohh	July 17, 2017 @ 18:29
28610 bytes	–	zopfli --i100 --mls2048 --bsr12 --lazy --ohh	July 17, 2017 @ 18:04

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 @ 12:49.

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	28628	28629	28628	28628	28628	28628	28630	28629	28629	28615	28604	28621	28604	28601	28620
4	28606	28606	28623	28621	28622	28621	28621	28603	28607	28604	28600	28618	28616	28619	28614
6	28609	28613	28614	28616	28622	28607	28622	28604	28615	28602	28601	28618	28616	28602	28603
7	28618	28626	28616	28615	28622	28625	28622	28609	28607	28602	28606	28619	28618	28608	28612
8	28625	28628	28626	28627	28627	28607	28608	28609	28609	28598	28601	28618	28599	28609	28612
9	28611	28612	28625	28625	28625	28607	28616	28616	28616	28598	28616	28618	28604	28598	28610
10	28617	28627	28619	28626	28615	28611	28614	28616	28616	28618	28599	28619	28618	28608	28612
11	28612	28612	28615	28616	28606	28607	28617	28609	28610	28601	28601	28619	28595	28604	28611
12	28612	28613	28616	28623	28615	28602	28612	28610	28604	28598	28598	28603	28595	28603	28610
13	28612	28613	28614	28617	28617	28615	28617	28609	28612	28602	28605	28618	28618	28606	28608
14	28618	28626	28617	28616	28606	28616	28616	28609	28601	28605	28599	28618	28595	28608	28611
15	28618	28626	28614	28616	28622	28624	28617	28621	28602	28602	28602	28618	28616	28613	28611
16	28617	28611	28615	28617	28609	28615	28624	28609	28603	28602	28604	28618	28616	28605	28604
17	28617	28612	28615	28615	28614	28616	28622	28604	28604	28602	28603	28618	28598	28609	28606
18	28611	28613	28614	28616	28607	28607	28617	28610	28604	28601	28603	28618	28616	28613	28609
19	28618	28626	28615	28623	28623	28614	28614	28609	28612	28602	28601	28618	28619	28596	28607
20	28620	28625	28616	28617	28623	28616	28617	28610	28612	28602	28599	28619	28619	28614	28608
21	28611	28611	28616	28615	28614	28607	28607	28608	28611	28602	28602	28619	28596	28612	28609
22	28613	28613	28616	28617	28610	28606	28616	28609	28612	28598	28599	28619	28618	28605	28610
23	28619	28611	28615	28615	28614	28615	28617	28621	28610	28603	28598	28619	28595	28604	28605
25	28611	28627	28614	28617	28609	28608	28613	28609	28613	28601	28599	28618	28616	28608	28609
30	28613	28612	28616	28617	28608	28606	28616	28608	28610	28602	28598	28619	28616	28613	28611
40	28611	28627	28616	28617	28606	28606	28608	28607	28610	28603	28601	28618	28618	28613	28609

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	28610 bytes	–	100%
1,000	28602 bytes	-8 bytes	100%
10,000	28599 bytes	-3 bytes	100%
100,000	28597 bytes	-2 bytes	6.38%
1,000,000	28595 bytes	-2 bytes	1.74%
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)	28672 bytes	+77 bytes (+0.27%)	–
1	28674 bytes	+79 bytes (+0.28%)	+2 bytes
2	28684 bytes	+89 bytes (+0.31%)	+12 bytes
3	28677 bytes	+82 bytes (+0.29%)	+5 bytes
4	28676 bytes	+81 bytes (+0.28%)	+4 bytes
5	28698 bytes	+103 bytes (+0.36%)	+26 bytes
6	28730 bytes	+135 bytes (+0.47%)	+58 bytes
7	28766 bytes	+171 bytes (+0.60%)	+94 bytes
8	28774 bytes	+179 bytes (+0.63%)	+102 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	23630 bytes	-4965 bytes (-17.36%)
RAR (proprietary)	RAR	rar a -m5 -md64m -mc63:128t -mt1	24258 bytes	-4337 bytes (-15.17%)
PPMd (Wikipedia)	7zip	7za a -mx=9 -m0=ppmd	25188 bytes	-3407 bytes (-11.91%)
Brotli (Wikipedia)	brotli	brotli -q 11	26617 bytes	-1978 bytes (-6.92%)
Burrows-Wheeler transform (Wikipedia)	bzip2	bzip2 -9	27206 bytes	-1389 bytes (-4.86%)
LZMA2 (Wikipedia)	xz	xz -9	27308 bytes	-1287 bytes (-4.50%)
Zstandard (Wikipedia)	zstd	zstd -19	28051 bytes	-544 bytes (-1.90%)

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.