AngularJS 1.7.0 - as small as it gets (near-perfect GZIP compression)

Choose a version:

The original file has 1322082 bytes (1,291.1k) and is available from the project website.
There you can find the official minified version, too, which brings down the size to 171317 bytes (167.3k, 13%).

After GZIP compression these minified files vary in size:

Boot	69034 bytes (67.4k)	CDN
cdnjs	60174 bytes (58.8k)	CDN
Google	60023 bytes (58.6k)	CDN
unpkg	59722 bytes (58.3k)	CDN
gzip -6 (default)	59712 bytes (58.3k)	local copy
gzip -9	59569 bytes (58.2k)	local copy
kzip -s0 -rn -b0	57757 bytes (56.4k)	local copy
7zip -mx=9 -tgzip	57752 bytes (56.4k)	local copy
libdeflate -12	57749 bytes (56.4k)	local copy
zultra	57715 bytes (56.4k)	local copy
pigz -11 -n	57679 bytes (56.3k)	local copy
Zopfli	57610 bytes (56.3k)	local copy
Zopfli (defluff)	57609 bytes (56.3k)	local copy

perma-link to the smallest file on my server:
http://minime.stephan-brumme.com/files/angularjs/angular-1.7.0.min.js (or via HTTPS)

You will automatically get the smallest AngularJS 1.7.0 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 2112 bytes by using my AngularJS 1.7.0 Zopfli version instead of the best available CDN (3.67% smaller than unpkg, 57610 vs. 59722 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 --mls512 --bsr22 --lazy --ohh

(found June 5, 2018)

Description	Value	Parameter
iterations	1000000	--i1000000
maximum blocks	8	--mb8
maximum length score	512	--mls512
block splitting recursion	22	--bsr22
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 (57609 bytes).

Download

Verify file integrity

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

MD5:
curl --silent --compressed https://code.angularjs.org/1.7.0/angular.min.js --location | md5sum
aecdf05d672207d561739925412c8abf -
curl --silent --compressed https://minime.stephan-brumme.com/files/angularjs/angular-1.7.0.min.zopfli.js.gz | md5sum
aecdf05d672207d561739925412c8abf -

SHA1:
curl --silent --compressed https://code.angularjs.org/1.7.0/angular.min.js --location | sha1sum
15558a00a952f99c7ea1b60a3a8bae2f2d9b6ecf -
curl --silent --compressed https://minime.stephan-brumme.com/files/angularjs/angular-1.7.0.min.zopfli.js.gz | sha1sum
15558a00a952f99c7ea1b60a3a8bae2f2d9b6ecf -

All listed CDNs deliver identical contents:

CDN	Size (compressed)	MD5 (uncompressed)	Timestamp
Boot	69034 bytes	aecdf05d672207d561739925412c8abf	(invalid)
cdnjs	60174 bytes	aecdf05d672207d561739925412c8abf	(invalid)
Google	60023 bytes	aecdf05d672207d561739925412c8abf	(invalid)
unpkg	59722 bytes	aecdf05d672207d561739925412c8abf	(invalid)

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
57610 bytes	-3 bytes	zopfli --i1000000 --mls512 --bsr22 --lazy --ohh	June 5, 2018 @ 01:27
57613 bytes	-8 bytes	zopfli --i100000 --mls512 --bsr22 --lazy --ohh	June 4, 2018 @ 13:51
57621 bytes	-1 byte	zopfli --i10000 --mls512 --bsr22 --lazy --ohh	June 4, 2018 @ 11:27
57622 bytes	-4 bytes	zopfli --i10000 --mls512 --bsr21 --lazy --ohh	June 4, 2018 @ 11:16
57626 bytes	-2 bytes	zopfli --i10000 --mls512 --bsr17 --lazy --ohh	June 4, 2018 @ 11:15
57628 bytes	-1 byte	zopfli --i1000 --mls512 --bsr15 --lazy --ohh	June 4, 2018 @ 09:39
57629 bytes	-1 byte	zopfli --i1000 --mls512 --bsr21 --lazy --ohh	June 4, 2018 @ 09:35
57630 bytes	-6 bytes	zopfli --i1000 --mls512 --bsr22 --lazy --ohh	June 4, 2018 @ 09:35
57636 bytes	–	zopfli --i100 --mls512 --bsr22 --lazy --ohh	June 4, 2018 @ 09:06

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 @ 13:07.

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	57685	57676	57677	57674	57676	57666	57677	57672	57662	57672	57654	57653	57759	57645	57684
4	57671	57670	57671	57671	57669	57663	57640	57652	57643	57646	57639	57646	57646	57641	57664
6	57665	57659	57668	57667	57669	57645	57644	57647	57646	57643	57642	57647	57651	57650	57664
7	57669	57676	57669	57673	57653	57665	57641	57654	57646	57653	57653	57649	57647	57647	57664
8	57656	57672	57655	57658	57656	57655	57655	57654	57646	57637	57645	57644	57655	57646	57631
9	57668	57674	57667	57669	57672	57661	57641	57656	57614	57629	57647	57641	57645	57641	57669
10	57669	57670	57667	57670	57642	57637	57630	57638	57624	57631	57633	57625	57645	57636	57660
11	57644	57661	57646	57644	57646	57648	57626	57630	57625	57626	57629	57624	57646	57641	57663
12	57671	57665	57668	57663	57669	57638	57628	57639	57630	57624	57630	57624	57629	57652	57663
13	57668	57639	57668	57664	57633	57651	57637	57638	57624	57630	57629	57641	57628	57642	57664
14	57670	57647	57653	57655	57641	57646	57632	57637	57624	57624	57631	57634	57634	57642	57662
15	57671	57664	57671	57669	57637	57642	57636	57636	57623	57626	57627	57626	57634	57639	57663
16	57669	57642	57643	57664	57636	57641	57632	57635	57626	57630	57630	57635	57629	57647	57627
17	57670	57641	57668	57642	57636	57645	57630	57639	57626	57625	57633	57638	57636	57635	57633
18	57670	57666	57658	57670	57636	57636	57628	57636	57627	57626	57627	57624	57629	57645	57662
19	57668	57665	57667	57670	57635	57642	57628	57637	57623	57626	57630	57628	57630	57641	57665
20	57657	57670	57657	57656	57634	57644	57628	57638	57623	57628	57631	57634	57628	57642	57661
21	57654	57663	57655	57649	57634	57638	57633	57638	57614	57625	57630	57628	57628	57641	57661
22	57654	57656	57657	57651	57635	57643	57640	57637	57610	57624	57628	57639	57645	57638	57648
23	57655	57654	57655	57643	57635	57644	57631	57637	57627	57629	57628	57638	57645	57635	57629
25	57654	57654	57655	57658	57638	57634	57626	57635	57632	57637	57630	57624	57629	57641	57661
30	57655	57656	57656	57653	57641	57638	57629	57638	57630	57630	57630	57627	57627	57641	57649
40	57654	57642	57656	57656	57652	57638	57648	57636	57624	57627	57627	57628	57629	57641	57660

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	57636 bytes	–	100%
1,000	57628 bytes	-8 bytes	100%
10,000	57621 bytes	-7 bytes	100%
100,000	57613 bytes	-8 bytes	0.87%
1,000,000	57610 bytes	-3 bytes	0.29%
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)	57757 bytes	+147 bytes (+0.26%)	–
1	57757 bytes	+147 bytes (+0.26%)	–
2	57758 bytes	+148 bytes (+0.26%)	+1 byte
3	57766 bytes	+156 bytes (+0.27%)	+9 bytes
4	57775 bytes	+165 bytes (+0.29%)	+18 bytes
5	57772 bytes	+162 bytes (+0.28%)	+15 bytes
6	57771 bytes	+161 bytes (+0.28%)	+14 bytes
7	57803 bytes	+193 bytes (+0.34%)	+46 bytes
8	57815 bytes	+205 bytes (+0.36%)	+58 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	44464 bytes	-13146 bytes (-22.82%)
RAR (proprietary)	RAR	rar a -m5 -md64m -mc63:128t -mt1	47011 bytes	-10599 bytes (-18.40%)
PPMd (Wikipedia)	7zip	7za a -mx=9 -m0=ppmd	48779 bytes	-8831 bytes (-15.33%)
Brotli (Wikipedia)	brotli	brotli -q 11	52346 bytes	-5264 bytes (-9.14%)
Burrows-Wheeler transform (Wikipedia)	bzip2	bzip2 -9	52993 bytes	-4617 bytes (-8.01%)
LZMA2 (Wikipedia)	xz	xz -9	53876 bytes	-3734 bytes (-6.48%)
Zstandard (Wikipedia)	zstd	zstd -19	55448 bytes	-2162 bytes (-3.75%)

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.