AngularJS 0.10.2 - as small as it gets (near-perfect GZIP compression)

Choose a version:

The original file has 400324 bytes (390.9k) and is available from the project website.
There you can find the official minified version, too, which brings down the size to 71206 bytes (69.5k, 18%).

After GZIP compression these minified files vary in size:

Boot	31995 bytes (31.2k)	CDN
Baidu	28733 bytes (28.1k)	CDN
cdnjs	28662 bytes (28.0k)	CDN
gzip -6 (default)	28464 bytes (27.8k)	local copy
gzip -9	28419 bytes (27.8k)	local copy
libdeflate -12	27749 bytes (27.1k)	local copy
7zip -mx=9 -tgzip	27518 bytes (26.9k)	local copy
zultra	27468 bytes (26.8k)	local copy
pigz -11 -n	27436 bytes (26.8k)	local copy
kzip -s0 -rn -b3	27421 bytes (26.8k)	local copy
Zopfli	27404 bytes (26.8k)	local copy
Zopfli (defluff)	27403 bytes (26.8k)	local copy

perma-link to the smallest file on my server:
http://minime.stephan-brumme.com/files/angularjs/angular-0.10.2.min.js (or via HTTPS)

You will automatically get the smallest AngularJS 0.10.2 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 1258 bytes by using my AngularJS 0.10.2 Zopfli version instead of the best available CDN (4.59% smaller than cdnjs, 27404 vs. 28662 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 --mls256 --bsr11 --lazy --ohh

(found November 26, 2015)

Description	Value	Parameter
iterations	100000	--i100000
maximum blocks	8	--mb8
maximum length score	256	--mls256
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

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 (27403 bytes).

Download

Verify file integrity

After decompression, my uncompressed files are identical to the original ones:

MD5:
curl --silent --compressed https://code.angularjs.org/0.10.2/angular-0.10.2.min.js --location | md5sum
70a7615ab4a729e6cd68f6121f6da594 -
curl --silent --compressed https://minime.stephan-brumme.com/files/angularjs/angular-0.10.2.min.zopfli.js.gz | md5sum
70a7615ab4a729e6cd68f6121f6da594 -

SHA1:
curl --silent --compressed https://code.angularjs.org/0.10.2/angular-0.10.2.min.js --location | sha1sum
c98484ea1c1f0fc21dcc28e0922ab39a8aaced7f -
curl --silent --compressed https://minime.stephan-brumme.com/files/angularjs/angular-0.10.2.min.zopfli.js.gz | sha1sum
c98484ea1c1f0fc21dcc28e0922ab39a8aaced7f -

These CDNs send you the original file:

CDN	Size (compressed)	MD5 (uncompressed)	Timestamp
Boot	31995 bytes	70a7615ab4a729e6cd68f6121f6da594	March 18, 2015 @ 09:59
cdnjs	28662 bytes	70a7615ab4a729e6cd68f6121f6da594	January 24, 2014 @ 03:45

And some CDNs send you a different file:

CDN	Size (compressed)	MD5 (uncompressed)	Comment / Diff	Timestamp
Baidu	28733 bytes	98c165dc27144be107f03e366d86edc2	only whitespaces differ	June 5, 2014 @ 10:05

Note: only the MD5 hashes are shown to keep things simple.

Other Versions

Available AngularJS versions at minime.stephan-brumme.com:

1.8.2, 1.8.1, 1.8.0,
1.7.9, 1.7.8, 1.7.7, 1.7.6, 1.7.5, 1.7.4, 1.7.3, 1.7.2, 1.7.1, 1.7.0,
1.6.10, 1.6.9, 1.6.8, 1.6.7, 1.6.6, 1.6.5, 1.6.4, 1.6.3, 1.6.2, 1.6.1, 1.6.0,
1.5.11, 1.5.10, 1.5.9, 1.5.8, 1.5.7, 1.5.6, 1.5.5, 1.5.4, 1.5.3, 1.5.2, 1.5.1, 1.5.0,
1.4.14, 1.4.13, 1.4.12, 1.4.11, 1.4.10, 1.4.9, 1.4.8, 1.4.7, 1.4.6, 1.4.5, 1.4.4, 1.4.3, 1.4.2, 1.4.1, 1.4.0,
1.3.20, 1.3.19, 1.3.18, 1.3.17, 1.3.16, 1.3.15, 1.3.14, 1.3.13, 1.3.12, 1.3.11, 1.3.10, 1.3.9, 1.3.8, 1.3.7, 1.3.6, 1.3.5, 1.3.4, 1.3.3, 1.3.2, 1.3.1, 1.3.0,
1.2.32, 1.2.31, 1.2.30, 1.2.29, 1.2.28, 1.2.27, 1.2.26, 1.2.25, 1.2.24, 1.2.23, 1.2.22, 1.2.21, 1.2.20, 1.2.19, 1.2.18, 1.2.17, 1.2.16, 1.2.15, 1.2.14, 1.2.13, 1.2.12, 1.2.11, 1.2.10, 1.2.9, 1.2.8, 1.2.7, 1.2.6, 1.2.5, 1.2.4, 1.2.3, 1.2.2, 1.2.1, 1.2.0,
1.1.5, 1.1.4, 1.1.3, 1.1.2, 1.1.1, 1.1.0,
1.0.8, 1.0.7, 1.0.6, 1.0.5, 1.0.4, 1.0.3, 1.0.2, 1.0.1, 1.0.0,
0.10.6, 0.10.5, 0.10.4, 0.10.3, 0.10.2, 0.10.1, 0.10.0,
0.9.19, 0.9.18, 0.9.17, 0.9.16, 0.9.15, 0.9.14, 0.9.13, 0.9.12, 0.9.11, 0.9.10, 0.9.9, 0.9.8, 0.9.7, 0.9.6, 0.9.5, 0.9.4, 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 BackboneJS, Bootstrap, D3, Dojo, Ember, jQuery, Knockout, lodash, React, Socket.IO, ThreeJS, UnderscoreJS and Vue.

Changelog

Best Zopfli parameters so far:

Size	Improvement	Parameters	Found
27404 bytes	-2 bytes	zopfli --i100000 --mls256 --bsr11 --lazy --ohh	November 26, 2015 @ 13:26
27406 bytes	-1 byte	zopfli --i10000 --mls256 --bsr11 --lazy --ohh	October 21, 2015 @ 12:59
27407 bytes	-5 bytes	zopfli --i1000 --mls256 --bsr11 --lazy --ohh	September 17, 2015 @ 01:18
27412 bytes	-2 bytes	zopfli --i10000 --mls1024 --bsr14 --lazy --ohh	September 10, 2015 @ 23:56
27414 bytes	-1 byte	zopfli --i1000 --mls1024 --bsr14 --lazy --ohh	September 7, 2015 @ 22:55
27415 bytes	-1 byte	zopfli --i1000 --mls512 --bsr11 --lazy --ohh	September 7, 2015 @ 22:55
27416 bytes	-2 bytes	zopfli --i1000 --mls512 --bsr10 --lazy --ohh	September 7, 2015 @ 22:52
27418 bytes	–	zopfli --i100 --mls512 --bsr11 --lazy --ohh	September 7, 2015 @ 16:08

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	27439	27433	27433	27428	27429	27432	27433	27436	27454	27438	27428	27429	27449	27474	27423
4	27425	27426	27424	27424	27436	27445	27435	27427	27425	27428	27420	27416	27418	27423	27434
6	27416	27416	27416	27414	27414	27428	27426	27427	27427	27428	27415	27415	27414	27439	27438
7	27433	27422	27424	27433	27425	27424	27426	27415	27414	27415	27413	27412	27414	27433	27428
8	27419	27420	27419	27413	27417	27429	27415	27417	27420	27419	27414	27415	27416	27442	27431
9	27415	27425	27440	27416	27435	27413	27432	27428	27432	27426	27413	27424	27414	27428	27435
10	27442	27431	27414	27414	27413	27415	27414	27428	27415	27415	27415	27415	27416	27427	27419
11	27429	27413	27429	27413	27414	27415	27415	27404	27414	27415	27416	27416	27417	27428	27429
12	27414	27415	27413	27415	27414	27415	27437	27437	27429	27414	27414	27413	27416	27428	27430
13	27424	27425	27424	27424	27413	27435	27427	27415	27415	27416	27413	27418	27417	27419	27420
14	27417	27416	27413	27417	27416	27434	27419	27438	27416	27412	27415	27413	27425	27417	27421
15	27414	27411	27415	27416	27418	27417	27422	27415	27415	27414	27415	27414	27415	27427	27429
16	27426	27428	27426	27417	27413	27413	27418	27418	27416	27416	27414	27412	27419	27437	27414
17	27415	27427	27429	27425	27427	27417	27419	27421	27414	27417	27415	27417	27414	27443	27426
18	27415	27417	27416	27422	27415	27424	27414	27421	27414	27417	27417	27414	27425	27426	27427
19	27414	27414	27411	27414	27414	27413	27418	27414	27419	27417	27414	27416	27415	27427	27415
20	27429	27427	27425	27415	27414	27425	27425	27434	27415	27418	27412	27417	27414	27428	27424
21	27414	27417	27416	27415	27415	27415	27414	27426	27415	27415	27412	27416	27413	27428	27430
22	27414	27416	27413	27417	27413	27415	27416	27416	27415	27413	27413	27414	27414	27427	27429
23	27426	27427	27426	27415	27414	27425	27418	27404	27415	27416	27413	27412	27416	27427	27432
25	27415	27415	27413	27416	27414	27415	27415	27416	27420	27414	27416	27417	27414	27428	27428
30	27414	27427	27425	27418	27415	27425	27416	27417	27416	27415	27413	27415	27414	27427	27419
40	27414	27413	27425	27417	27414	27425	27415	27416	27414	27415	27415	27414	27415	27426	27430

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	27412 bytes	–	100%
1,000	27407 bytes	-5 bytes	100%
10,000	27406 bytes	-1 byte	100%
100,000	27404 bytes	-2 bytes	0.58%
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)	27482 bytes	+78 bytes (+0.28%)	+61 bytes
1	27922 bytes	+518 bytes (+1.89%)	+501 bytes
2	27482 bytes	+78 bytes (+0.28%)	+61 bytes
3	27421 bytes	+17 bytes (+0.06%)	–
4	27439 bytes	+35 bytes (+0.13%)	+18 bytes
5	27478 bytes	+74 bytes (+0.27%)	+57 bytes
6	27506 bytes	+102 bytes (+0.37%)	+85 bytes
7	27535 bytes	+131 bytes (+0.48%)	+114 bytes
8	27549 bytes	+145 bytes (+0.53%)	+128 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	23714 bytes	-3690 bytes (-13.47%)
PPMd (Wikipedia)	7zip	7za a -mx=9 -m0=ppmd	24314 bytes	-3090 bytes (-11.28%)
RAR (proprietary)	RAR	rar a -m5 -md64m -mc63:128t -mt1	24332 bytes	-3072 bytes (-11.21%)
Brotli (Wikipedia)	brotli	brotli -q 11	25361 bytes	-2043 bytes (-7.46%)
LZMA2 (Wikipedia)	xz	xz -9	26732 bytes	-672 bytes (-2.45%)
Burrows-Wheeler transform (Wikipedia)	bzip2	bzip2 -9	27341 bytes	-63 bytes (-0.23%)
Zstandard (Wikipedia)	zstd	zstd -19	27516 bytes	+112 bytes (+0.41%)

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.