Vue 2.1.7 - as small as it gets (near-perfect GZIP compression)

Choose a version:

The original file has 221383 bytes (216.2k) and is available from the project website.
There you can find the official minified version, too, which brings down the size to 71722 bytes (70.0k, 32%).

After GZIP compression these minified files vary in size:

Boot	30100 bytes (29.4k)	CDN
cdnjs	26415 bytes (25.8k)	CDN
unpkg	26278 bytes (25.7k)	CDN
gzip -6 (default)	26270 bytes (25.7k)	local copy
gzip -9	26244 bytes (25.6k)	local copy
jsdelivr	26231 bytes (25.6k)	CDN
kzip -s0 -rn -b1	25387 bytes (24.8k)	local copy
7zip -mx=9 -tgzip	25375 bytes (24.8k)	local copy
libdeflate -12	25370 bytes (24.8k)	local copy
zultra	25355 bytes (24.8k)	local copy
pigz -11 -n	25329 bytes (24.7k)	local copy
Zopfli	25281 bytes (24.7k)	local copy
Zopfli (defluff)	25279 bytes (24.7k)	local copy

perma-link to the smallest file on my server:
http://minime.stephan-brumme.com/files/vue/vue-2.1.7.min.js (or via HTTPS)

You will automatically get the smallest Vue 2.1.7 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 950 bytes by using my Vue 2.1.7 Zopfli version instead of the best available CDN (3.76% smaller than jsdelivr, 25281 vs. 26231 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 --mls512 --bsr8 --lazy --ohh

(found April 4, 2017)

Description	Value	Parameter
iterations	100000	--i100000
maximum blocks	8	--mb8
maximum length score	512	--mls512
block splitting recursion	8	--bsr8
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 2 more bytes (25279 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-2.1.7.min.js --location | md5sum
7a1e2a9fcf8639f0c545fed6621a484c -
curl --silent --compressed https://minime.stephan-brumme.com/files/vue/vue-2.1.7.min.zopfli.js.gz | md5sum
7a1e2a9fcf8639f0c545fed6621a484c -

SHA1:
curl --silent --compressed https://raw.githubusercontent.com/vuejs/vue/vue-2.1.7.min.js --location | sha1sum
1a95af4d7157550a886880548016da0ca5f380a4 -
curl --silent --compressed https://minime.stephan-brumme.com/files/vue/vue-2.1.7.min.zopfli.js.gz | sha1sum
1a95af4d7157550a886880548016da0ca5f380a4 -

All listed CDNs deliver identical contents:

CDN	Size (compressed)	MD5 (uncompressed)	Timestamp
Boot	30100 bytes	7a1e2a9fcf8639f0c545fed6621a484c	(invalid)
cdnjs	26415 bytes	7a1e2a9fcf8639f0c545fed6621a484c	(invalid)
unpkg	26278 bytes	7a1e2a9fcf8639f0c545fed6621a484c	April 4, 2017 @ 10:09
jsdelivr	26231 bytes	7a1e2a9fcf8639f0c545fed6621a484c	(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
25281 bytes	-1 byte	zopfli --i100000 --mls512 --bsr8 --lazy --ohh	April 4, 2017 @ 12:49
25282 bytes	-4 bytes	zopfli --i10000 --mls512 --bsr8 --lazy --ohh	April 4, 2017 @ 11:50
25286 bytes	-2 bytes	zopfli --i1000 --mls512 --bsr8 --lazy --ohh	April 4, 2017 @ 10:42
25288 bytes	–	zopfli --i100 --mls512 --bsr8 --lazy --ohh	April 4, 2017 @ 10:27

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 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	25322	25319	25321	25323	25330	25329	25334	25310	25291	25338	25338	25338	25327	25330	25335
4	25317	25317	25325	25326	25324	25331	25318	25293	25322	25322	25316	25339	25332	25329	25331
6	25318	25314	25315	25325	25324	25327	25318	25329	25321	25327	25336	25291	25337	25328	25323
7	25315	25314	25318	25320	25317	25318	25321	25320	25324	25320	25338	25337	25310	25322	25327
8	25323	25319	25287	25322	25294	25320	25293	25292	25281	25327	25337	25314	25308	25329	25330
9	25319	25321	25310	25321	25322	25315	25326	25327	25325	25319	25337	25335	25313	25324	25318
10	25321	25319	25324	25325	25321	25310	25323	25316	25322	25321	25320	25337	25318	25322	25325
11	25320	25317	25323	25323	25322	25308	25318	25324	25321	25309	25316	25317	25315	25316	25333
12	25317	25323	25318	25325	25323	25307	25317	25320	25322	25328	25316	25314	25316	25322	25328
13	25319	25315	25315	25321	25323	25310	25317	25285	25319	25312	25315	25322	25316	25315	25314
14	25319	25315	25319	25323	25323	25308	25313	25320	25322	25314	25318	25318	25319	25316	25321
15	25323	25314	25308	25319	25322	25316	25323	25316	25322	25317	25317	25316	25309	25316	25335
16	25313	25313	25308	25324	25322	25304	25313	25323	25329	25319	25316	25316	25317	25317	25321
17	25314	25318	25318	25319	25317	25306	25319	25292	25319	25327	25336	25300	25310	25325	25315
18	25319	25320	25319	25320	25322	25309	25317	25322	25322	25308	25336	25335	25310	25319	25318
19	25319	25315	25316	25320	25326	25319	25318	25328	25322	25310	25338	25286	25320	25317	25318
20	25316	25315	25319	25320	25323	25308	25316	25321	25323	25328	25338	25290	25318	25320	25321
21	25319	25313	25317	25320	25318	25293	25324	25282	25322	25319	25337	25290	25315	25324	25337
22	25321	25315	25308	25318	25322	25291	25321	25324	25319	25308	25317	25286	25313	25322	25337
23	25315	25314	25316	25320	25318	25291	25314	25327	25322	25309	25321	25331	25315	25326	25320
25	25316	25315	25307	25321	25326	25307	25321	25323	25321	25327	25315	25317	25314	25322	25318
30	25314	25316	25319	25321	25321	25314	25314	25324	25323	25317	25316	25324	25314	25316	25318
40	25315	25314	25304	25322	25324	25309	25316	25323	25322	25308	25317	25313	25320	25326	25314

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	25288 bytes	–	100%
1,000	25286 bytes	-2 bytes	100%
10,000	25282 bytes	-4 bytes	100%
100,000	25281 bytes	-1 byte	2.61%
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)	25389 bytes	+108 bytes (+0.43%)	+2 bytes
1	25387 bytes	+106 bytes (+0.42%)	–
2	25391 bytes	+110 bytes (+0.44%)	+4 bytes
3	25392 bytes	+111 bytes (+0.44%)	+5 bytes
4	25388 bytes	+107 bytes (+0.42%)	+1 byte
5	25409 bytes	+128 bytes (+0.51%)	+22 bytes
6	25449 bytes	+168 bytes (+0.66%)	+62 bytes
7	25477 bytes	+196 bytes (+0.78%)	+90 bytes
8	25486 bytes	+205 bytes (+0.81%)	+99 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	21169 bytes	-4112 bytes (-16.27%)
RAR (proprietary)	RAR	rar a -m5 -md64m -mc63:128t -mt1	21679 bytes	-3602 bytes (-14.25%)
PPMd (Wikipedia)	7zip	7za a -mx=9 -m0=ppmd	21745 bytes	-3536 bytes (-13.99%)
Brotli (Wikipedia)	brotli	brotli -q 11	23668 bytes	-1613 bytes (-6.38%)
Burrows-Wheeler transform (Wikipedia)	bzip2	bzip2 -9	24340 bytes	-941 bytes (-3.72%)
LZMA2 (Wikipedia)	xz	xz -9	24388 bytes	-893 bytes (-3.53%)
Zstandard (Wikipedia)	zstd	zstd -19	24961 bytes	-320 bytes (-1.27%)

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.