Vue 2.1.6 - as small as it gets (near-perfect GZIP compression)

Choose a version:

The original file has 216942 bytes (211.9k) and is available from the project website.
There you can find the official minified version, too, which brings down the size to 70910 bytes (69.2k, 33%).

After GZIP compression these minified files vary in size:

Boot	29644 bytes (28.9k)	CDN
gzip -6 (default)	25945 bytes (25.3k)	local copy
cdnjs	25936 bytes (25.3k)	CDN
unpkg	25936 bytes (25.3k)	CDN
gzip -9	25924 bytes (25.3k)	local copy
jsdelivr	25912 bytes (25.3k)	CDN
7zip -mx=9 -tgzip	25076 bytes (24.5k)	local copy
kzip -s0 -rn -b2	25071 bytes (24.5k)	local copy
libdeflate -12	25058 bytes (24.5k)	local copy
pigz -11 -n	25040 bytes (24.5k)	local copy
zultra	25032 bytes (24.4k)	local copy
Zopfli	24965 bytes (24.4k)	local copy
Zopfli (defluff)	24964 bytes (24.4k)	local copy

perma-link to the smallest file on my server:
http://minime.stephan-brumme.com/files/vue/vue-2.1.6.min.js (or via HTTPS)

You will automatically get the smallest Vue 2.1.6 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 947 bytes by using my Vue 2.1.6 Zopfli version instead of the best available CDN (3.79% smaller than jsdelivr, 24965 vs. 25912 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 --mls64 --bsr13 --lazy --ohh

(found April 4, 2017)

Description	Value	Parameter
iterations	100000	--i100000
maximum blocks	8	--mb8
maximum length score	64	--mls64
block splitting recursion	13	--bsr13
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 (24964 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-2.1.6.min.js --location | md5sum
d728355b9fdf7e321210519492f2e97c -
curl --silent --compressed https://minime.stephan-brumme.com/files/vue/vue-2.1.6.min.zopfli.js.gz | md5sum
d728355b9fdf7e321210519492f2e97c -

SHA1:
curl --silent --compressed https://raw.githubusercontent.com/vuejs/vue/vue-2.1.6.min.js --location | sha1sum
b52147f6143972c1ce9e814dbd34b89716d5a026 -
curl --silent --compressed https://minime.stephan-brumme.com/files/vue/vue-2.1.6.min.zopfli.js.gz | sha1sum
b52147f6143972c1ce9e814dbd34b89716d5a026 -

All listed CDNs deliver identical contents:

CDN	Size (compressed)	MD5 (uncompressed)	Timestamp
Boot	29644 bytes	d728355b9fdf7e321210519492f2e97c	(invalid)
cdnjs	25936 bytes	d728355b9fdf7e321210519492f2e97c	(invalid)
unpkg	25936 bytes	d728355b9fdf7e321210519492f2e97c	April 4, 2017 @ 10:09
jsdelivr	25912 bytes	d728355b9fdf7e321210519492f2e97c	(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
24965 bytes	-2 bytes	zopfli --i100000 --mls64 --bsr13 --lazy --ohh	April 4, 2017 @ 19:18
24967 bytes	-2 bytes	zopfli --i10000 --mls64 --bsr13 --lazy --ohh	April 4, 2017 @ 13:00
24969 bytes	-2 bytes	zopfli --i10000 --mls16 --bsr21 --lazy --ohh	April 4, 2017 @ 12:52
24971 bytes	-3 bytes	zopfli --i1000 --mls16 --bsr21 --lazy --ohh	April 4, 2017 @ 10:40
24974 bytes	-1 byte	zopfli --i1000 --mls64 --bsr25 --lazy --ohh	April 4, 2017 @ 10:39
24975 bytes	–	zopfli --i100 --mls16 --bsr21 --lazy --ohh	April 4, 2017 @ 10:22

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 @ 12:48.

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	24981	24979	24985	24980	24975	24978	25010	25014	24972	25030	25021	25024	25023	25027	25028
4	25015	25014	24999	25015	25000	25010	24984	25010	25004	25023	25023	25007	25014	25024	25023
6	25003	25001	25007	24990	25013	24977	25006	25003	24977	25021	25023	25023	25021	25012	25028
7	24993	24973	25006	25016	24978	24999	24998	24999	25004	25021	25022	25019	25020	25010	25025
8	24969	24969	24979	24995	24973	24972	24988	24975	25005	25021	25021	25024	25020	25014	25010
9	25015	24998	25010	25012	24984	24981	24978	24998	25001	25024	25007	25007	25023	25009	25008
10	25010	25010	25012	24995	24968	24994	25001	24996	25001	25003	25006	25006	25004	25011	25008
11	24997	24997	25002	24994	24973	24970	24966	24995	24978	25001	25005	25006	25004	25002	25005
12	25010	25013	25009	25002	25006	25005	24971	24996	25002	25002	25006	25007	25016	25006	25006
13	25005	24992	25005	25007	25005	24965	25001	24994	25000	25007	25003	25005	25007	25003	25008
14	25000	24999	25010	25008	25009	24996	24999	24994	24994	25002	25008	25008	25003	25003	25008
15	24998	24995	24993	24994	24994	24994	25000	24995	25002	25003	25009	25004	25006	25001	25006
16	24997	24998	25010	24996	24974	24973	24998	24994	24972	25021	25007	25004	25005	25006	25002
17	24999	24995	25009	25000	24996	24994	24971	24995	25000	25021	25022	25023	25001	25015	25007
18	25002	24997	25000	24995	25005	24993	24972	24994	25001	25021	25001	25022	25021	25012	25025
19	24992	24995	24998	25009	24972	24971	25001	24996	25003	25021	25007	25006	25009	25005	25007
20	25015	24996	24983	24994	24997	24993	25000	24996	24974	25021	25006	25005	25019	25008	25006
21	25000	24995	25012	24969	25000	24971	24999	24996	25002	25021	25002	25007	25018	25013	25025
22	24993	24992	25003	24994	24994	24996	24970	24994	25002	25017	25004	25005	25003	25003	25025
23	24997	24996	25009	24995	24999	24971	24970	24994	25001	25003	25003	25003	25011	25006	25007
25	25003	24996	24996	24996	24973	24973	25001	24996	25002	25002	25009	25005	25004	25006	25007
30	25013	25011	25010	25005	25004	25000	25000	24995	24996	25001	25008	25007	25007	25004	25002
40	25003	24996	24994	25001	25005	24984	24996	24994	25003	25004	25010	25007	25009	25005	25010

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	24975 bytes	–	100%
1,000	24971 bytes	-4 bytes	100%
10,000	24967 bytes	-4 bytes	100%
100,000	24965 bytes	-2 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)	25074 bytes	+109 bytes (+0.44%)	+3 bytes
1	25072 bytes	+107 bytes (+0.43%)	+1 byte
2	25071 bytes	+106 bytes (+0.42%)	–
3	25076 bytes	+111 bytes (+0.44%)	+5 bytes
4	25084 bytes	+119 bytes (+0.48%)	+13 bytes
5	25098 bytes	+133 bytes (+0.53%)	+27 bytes
6	25135 bytes	+170 bytes (+0.68%)	+64 bytes
7	25164 bytes	+199 bytes (+0.80%)	+93 bytes
8	25172 bytes	+207 bytes (+0.83%)	+101 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	20953 bytes	-4012 bytes (-16.07%)
RAR (proprietary)	RAR	rar a -m5 -md64m -mc63:128t -mt1	21424 bytes	-3541 bytes (-14.18%)
PPMd (Wikipedia)	7zip	7za a -mx=9 -m0=ppmd	21484 bytes	-3481 bytes (-13.94%)
Brotli (Wikipedia)	brotli	brotli -q 11	23431 bytes	-1534 bytes (-6.14%)
Burrows-Wheeler transform (Wikipedia)	bzip2	bzip2 -9	24057 bytes	-908 bytes (-3.64%)
LZMA2 (Wikipedia)	xz	xz -9	24092 bytes	-873 bytes (-3.50%)
Zstandard (Wikipedia)	zstd	zstd -19	24668 bytes	-297 bytes (-1.19%)

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.