Vue 1.0.21 - as small as it gets (near-perfect GZIP compression)

Choose a version:

The original file has 267661 bytes (261.4k) and is available from the project website.
There you can find the official minified version, too, which brings down the size to 75359 bytes (73.6k, 28%).

After GZIP compression these minified files vary in size:

Boot	30333 bytes (29.6k)	CDN
cdnjs	26199 bytes (25.6k)	CDN
gzip -6 (default)	25995 bytes (25.4k)	local copy
jsdelivr	25908 bytes (25.3k)	CDN
gzip -9	25889 bytes (25.3k)	local copy
unpkg	25884 bytes (25.3k)	CDN
libdeflate -12	25074 bytes (24.5k)	local copy
7zip -mx=9 -tgzip	25044 bytes (24.5k)	local copy
kzip -s0 -rn -b4	25013 bytes (24.4k)	local copy
zultra	24985 bytes (24.4k)	local copy
pigz -11 -n	24980 bytes (24.4k)	local copy
Zopfli	24950 bytes (24.4k)	local copy

perma-link to the smallest file on my server:
http://minime.stephan-brumme.com/files/vue/vue-1.0.21.min.js (or via HTTPS)

You will automatically get the smallest Vue 1.0.21 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 934 bytes by using my Vue 1.0.21 Zopfli version instead of the best available CDN (3.74% smaller than unpkg, 24950 vs. 25884 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 --mls4 --bsr4 --lazy --ohh

(found April 10, 2017)

Description	Value	Parameter
iterations	100000	--i100000
maximum blocks	8	--mb8
maximum length score	4	--mls4
block splitting recursion	4	--bsr4
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-1.0.21.min.js --location | md5sum
f44ec077e166638e9be9345b8b9b35eb -
curl --silent --compressed https://minime.stephan-brumme.com/files/vue/vue-1.0.21.min.zopfli.js.gz | md5sum
f44ec077e166638e9be9345b8b9b35eb -

SHA1:
curl --silent --compressed https://raw.githubusercontent.com/vuejs/vue/vue-1.0.21.min.js --location | sha1sum
aac7b00b3f0a7c7a4c37a53ac1d7a05368810074 -
curl --silent --compressed https://minime.stephan-brumme.com/files/vue/vue-1.0.21.min.zopfli.js.gz | sha1sum
aac7b00b3f0a7c7a4c37a53ac1d7a05368810074 -

All listed CDNs deliver identical contents:

CDN	Size (compressed)	MD5 (uncompressed)	Timestamp
Boot	30333 bytes	f44ec077e166638e9be9345b8b9b35eb	(invalid)
cdnjs	26199 bytes	f44ec077e166638e9be9345b8b9b35eb	(invalid)
jsdelivr	25908 bytes	f44ec077e166638e9be9345b8b9b35eb	(invalid)
unpkg	25884 bytes	f44ec077e166638e9be9345b8b9b35eb	April 6, 2017 @ 17:24

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
24950 bytes	-1 byte	zopfli --i100000 --mls4 --bsr4 --lazy --ohh	April 10, 2017 @ 13:01
24951 bytes	-4 bytes	zopfli --i10000 --mls4 --bsr4 --lazy --ohh	April 7, 2017 @ 05:15
24955 bytes	-1 byte	zopfli --i1000 --mls4 --bsr4 --lazy --ohh	April 6, 2017 @ 19:24
24956 bytes	-1 byte	zopfli --i1000 --mls256 --bsr20 --lazy --ohh	April 6, 2017 @ 19:12
24957 bytes	-2 bytes	zopfli --i1000 --mls128 --bsr14 --lazy --ohh	April 6, 2017 @ 19:05
24959 bytes	-4 bytes	zopfli --i1000 --mls128 --bsr17 --lazy --ohh	April 6, 2017 @ 19:01
24963 bytes	-4 bytes	zopfli --i1000 --mls16 --bsr4 --lazy --ohh	April 6, 2017 @ 19:00
24967 bytes	–	zopfli --i100 --mls64 --bsr14 --lazy --ohh	April 6, 2017 @ 18:08

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 @ 12:52.

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	24971	24961	24960	24960	24960	24966	24958	24964	24957	24965	24964	24964	24964	24974	24974
4	24970	24950	24973	24960	24963	24974	24958	24972	24972	24968	24971	24972	24964	24973	24976
6	24973	24970	24963	24972	24972	24961	24972	24971	24972	24971	24972	24969	24971	24969	24974
7	24970	24973	24971	24973	24971	24971	24970	24971	24972	24968	24971	24969	24955	24975	24975
8	24969	24962	24972	24972	24971	24972	24957	24973	24971	24967	24966	24975	24963	24973	24974
9	24970	24972	24971	24959	24971	24973	24971	24973	24971	24968	24971	24961	24961	24973	24974
10	24969	24966	24958	24971	24970	24972	24957	24973	24971	24968	24963	24972	24971	24972	24973
11	24971	24966	24972	24973	24972	24971	24972	24973	24972	24968	24971	24973	24960	24971	24975
12	24971	24972	24972	24971	24969	24973	24972	24972	24971	24970	24971	24972	24971	24972	24973
13	24970	24969	24970	24971	24971	24973	24972	24972	24971	24971	24972	24969	24959	24976	24977
14	24962	24970	24972	24972	24971	24953	24956	24963	24971	24971	24971	24968	24968	24970	24976
15	24970	24969	24972	24971	24972	24971	24971	24973	24971	24968	24971	24969	24959	24968	24972
16	24971	24972	24970	24971	24972	24972	24956	24972	24971	24971	24971	24968	24972	24974	24975
17	24963	24971	24971	24971	24972	24953	24957	24964	24971	24968	24971	24970	24961	24971	24976
18	24970	24972	24971	24971	24971	24972	24972	24964	24974	24970	24971	24969	24962	24972	24974
19	24968	24971	24971	24971	24972	24973	24971	24974	24971	24971	24972	24969	24970	24973	24975
20	24970	24973	24976	24971	24969	24973	24957	24953	24971	24971	24971	24969	24973	24974	24971
21	24970	24971	24972	24971	24971	24973	24957	24965	24971	24971	24972	24969	24959	24972	24975
22	24963	24969	24970	24970	24970	24973	24971	24973	24973	24970	24971	24969	24972	24974	24971
23	24970	24969	24973	24970	24971	24972	24971	24972	24971	24972	24971	24971	24970	24974	24975
25	24969	24969	24969	24971	24971	24973	24971	24964	24971	24970	24971	24968	24970	24974	24977
30	24967	24969	24971	24971	24971	24970	24971	24973	24971	24971	24971	24965	24960	24974	24976
40	24970	24962	24972	24960	24971	24972	24971	24972	24971	24972	24971	24971	24961	24975	24975

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	24967 bytes	–	100%
1,000	24955 bytes	-12 bytes	100%
10,000	24951 bytes	-4 bytes	100%
100,000	24950 bytes	-1 byte	2.32%
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)	25032 bytes	+82 bytes (+0.33%)	+19 bytes
1	25032 bytes	+82 bytes (+0.33%)	+19 bytes
2	25029 bytes	+79 bytes (+0.32%)	+16 bytes
3	25024 bytes	+74 bytes (+0.30%)	+11 bytes
4	25013 bytes	+63 bytes (+0.25%)	–
5	25045 bytes	+95 bytes (+0.38%)	+32 bytes
6	25075 bytes	+125 bytes (+0.50%)	+62 bytes
7	25103 bytes	+153 bytes (+0.61%)	+90 bytes
8	25130 bytes	+180 bytes (+0.72%)	+117 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	20661 bytes	-4289 bytes (-17.19%)
RAR (proprietary)	RAR	rar a -m5 -md64m -mc63:128t -mt1	21071 bytes	-3879 bytes (-15.55%)
PPMd (Wikipedia)	7zip	7za a -mx=9 -m0=ppmd	21973 bytes	-2977 bytes (-11.93%)
Brotli (Wikipedia)	brotli	brotli -q 11	23310 bytes	-1640 bytes (-6.57%)
Burrows-Wheeler transform (Wikipedia)	bzip2	bzip2 -9	23643 bytes	-1307 bytes (-5.24%)
LZMA2 (Wikipedia)	xz	xz -9	24144 bytes	-806 bytes (-3.23%)
Zstandard (Wikipedia)	zstd	zstd -19	24657 bytes	-293 bytes (-1.17%)

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.