AngularJS 1.6.10 - as small as it gets (near-perfect GZIP compression)

Choose a version:

The original file has 1312921 bytes (1,282.1k) and is available from the project website.
There you can find the official minified version, too, which brings down the size to 170607 bytes (166.6k, 13%).

After GZIP compression these minified files vary in size:

Boot	68804 bytes (67.2k)	CDN
Google	59811 bytes (58.4k)	CDN
cdnjs	59517 bytes (58.1k)	CDN
unpkg	59517 bytes (58.1k)	CDN
gzip -6 (default)	59490 bytes (58.1k)	local copy
gzip -9	59357 bytes (58.0k)	local copy
libdeflate -12	57585 bytes (56.2k)	local copy
7zip -mx=9 -tgzip	57558 bytes (56.2k)	local copy
kzip -s0 -rn -b8	57548 bytes (56.2k)	local copy
zultra	57507 bytes (56.2k)	local copy
pigz -11 -n	57473 bytes (56.1k)	local copy
Zopfli	57431 bytes (56.1k)	local copy
Zopfli (defluff)	57430 bytes (56.1k)	local copy

perma-link to the smallest file on my server:
http://minime.stephan-brumme.com/files/angularjs/angular-1.6.10.min.js (or via HTTPS)

You will automatically get the smallest AngularJS 1.6.10 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 2086 bytes by using my AngularJS 1.6.10 Zopfli version instead of the best available CDN (3.63% smaller than unpkg, 57431 vs. 59517 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 --bsr23 --lazy --ohh

(found April 25, 2018)

Description	Value	Parameter
iterations	1000000	--i1000000
maximum blocks	8	--mb8
maximum length score	512	--mls512
block splitting recursion	23	--bsr23
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 (57430 bytes).

Download

Verify file integrity

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

MD5:
curl --silent --compressed https://code.angularjs.org/1.6.10/angular.min.js --location | md5sum
51c7efb4d10e059cadea0be0322b420f -
curl --silent --compressed https://minime.stephan-brumme.com/files/angularjs/angular-1.6.10.min.zopfli.js.gz | md5sum
51c7efb4d10e059cadea0be0322b420f -

SHA1:
curl --silent --compressed https://code.angularjs.org/1.6.10/angular.min.js --location | sha1sum
a4ba6e03ba48a119539e6be2e05302ac2f1a3c42 -
curl --silent --compressed https://minime.stephan-brumme.com/files/angularjs/angular-1.6.10.min.zopfli.js.gz | sha1sum
a4ba6e03ba48a119539e6be2e05302ac2f1a3c42 -

All listed CDNs deliver identical contents:

CDN	Size (compressed)	MD5 (uncompressed)	Timestamp
Boot	68804 bytes	51c7efb4d10e059cadea0be0322b420f	(invalid)
Google	59811 bytes	51c7efb4d10e059cadea0be0322b420f	May 16, 2018 @ 20:15
cdnjs	59517 bytes	51c7efb4d10e059cadea0be0322b420f	(invalid)
unpkg	59517 bytes	51c7efb4d10e059cadea0be0322b420f	(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
57431 bytes	-1 byte	zopfli --i1000000 --mls512 --bsr23 --lazy --ohh	April 25, 2018 @ 05:32
57432 bytes	-5 bytes	zopfli --i100000 --mls512 --bsr23 --lazy --ohh	April 24, 2018 @ 16:42
57437 bytes	-1 byte	zopfli --i10000 --mls512 --bsr23 --lazy --ohh	April 23, 2018 @ 20:30
57438 bytes	-2 bytes	zopfli --i10000 --mls256 --bsr19 --lazy --ohh	April 23, 2018 @ 15:03
57440 bytes	-1 byte	zopfli --i10000 --mls256 --bsr25 --lazy --ohh	April 23, 2018 @ 14:13
57441 bytes	-1 byte	zopfli --i10000 --mls2048 --bsr13 --lazy --ohh	April 23, 2018 @ 13:56
57442 bytes	-2 bytes	zopfli --i10000 --mls2048 --bsr23 --lazy --ohh	April 23, 2018 @ 13:50
57444 bytes	-2 bytes	zopfli --i1000 --mls512 --bsr23 --lazy --ohh	April 23, 2018 @ 10:04
57446 bytes	-2 bytes	zopfli --i1000 --mls256 --bsr25 --lazy --ohh	April 23, 2018 @ 09:58
57448 bytes	-5 bytes	zopfli --i1000 --mls512 --bsr11 --lazy --ohh	April 23, 2018 @ 09:57
57453 bytes	–	zopfli --i100 --mls512 --bsr23 --lazy --ohh	April 23, 2018 @ 09:35

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 @ 12:54.

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	57497	57495	57483	57501	57487	57485	57494	57484	57483	57484	57463	57469	57560	57464	57486
4	57471	57472	57471	57478	57477	57485	57474	57461	57456	57456	57449	57470	57459	57457	57460
6	57479	57474	57469	57473	57477	57474	57474	57475	57474	57470	57458	57470	57463	57453	57461
7	57477	57477	57479	57473	57462	57470	57468	57461	57455	57457	57469	57469	57462	57454	57476
8	57476	57477	57477	57473	57457	57461	57459	57456	57454	57455	57453	57456	57450	57456	57462
9	57477	57477	57478	57479	57476	57474	57468	57460	57458	57461	57453	57469	57455	57454	57468
10	57477	57475	57448	57474	57451	57467	57449	57451	57443	57448	57443	57469	57459	57456	57450
11	57469	57474	57448	57473	57451	57448	57449	57450	57444	57445	57444	57469	57445	57455	57451
12	57473	57475	57474	57471	57477	57451	57474	57444	57445	57446	57443	57469	57445	57456	57450
13	57470	57475	57449	57476	57451	57448	57450	57451	57445	57448	57441	57469	57460	57455	57449
14	57472	57475	57475	57474	57453	57448	57446	57449	57445	57448	57445	57469	57444	57455	57445
15	57469	57477	57460	57474	57450	57451	57456	57449	57445	57449	57443	57469	57448	57452	57451
16	57464	57473	57468	57466	57452	57456	57449	57444	57445	57448	57449	57473	57444	57457	57463
17	57474	57475	57470	57477	57452	57455	57448	57446	57445	57448	57444	57469	57451	57449	57450
18	57473	57475	57477	57452	57467	57449	57449	57449	57445	57447	57443	57469	57460	57456	57451
19	57461	57461	57459	57463	57452	57449	57447	57433	57446	57445	57443	57469	57455	57454	57453
20	57464	57474	57461	57477	57449	57449	57446	57450	57445	57450	57444	57470	57455	57455	57458
21	57462	57461	57464	57468	57460	57467	57447	57448	57444	57449	57443	57469	57455	57456	57448
22	57461	57473	57473	57464	57448	57450	57448	57449	57444	57446	57443	57469	57454	57455	57456
23	57463	57459	57460	57465	57448	57465	57449	57450	57431	57446	57442	57469	57453	57456	57460
25	57465	57462	57446	57470	57447	57465	57448	57437	57444	57447	57442	57469	57453	57455	57461
30	57468	57462	57460	57465	57448	57446	57447	57443	57445	57449	57442	57469	57450	57454	57456
40	57460	57463	57471	57475	57465	57466	57460	57454	57445	57448	57442	57469	57455	57457	57476

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	57453 bytes	–	100%
1,000	57444 bytes	-9 bytes	100%
10,000	57437 bytes	-7 bytes	100%
100,000	57432 bytes	-5 bytes	0.87%
1,000,000	57431 bytes	-1 byte	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)	57573 bytes	+142 bytes (+0.25%)	+25 bytes
1	57573 bytes	+142 bytes (+0.25%)	+25 bytes
2	57575 bytes	+144 bytes (+0.25%)	+27 bytes
3	57574 bytes	+143 bytes (+0.25%)	+26 bytes
4	57581 bytes	+150 bytes (+0.26%)	+33 bytes
5	57593 bytes	+162 bytes (+0.28%)	+45 bytes
6	57593 bytes	+162 bytes (+0.28%)	+45 bytes
7	57620 bytes	+189 bytes (+0.33%)	+72 bytes
8	57548 bytes	+117 bytes (+0.20%)	–

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	44358 bytes	-13073 bytes (-22.76%)
RAR (proprietary)	RAR	rar a -m5 -md64m -mc63:128t -mt1	46856 bytes	-10575 bytes (-18.41%)
PPMd (Wikipedia)	7zip	7za a -mx=9 -m0=ppmd	48589 bytes	-8842 bytes (-15.40%)
Brotli (Wikipedia)	brotli	brotli -q 11	52130 bytes	-5301 bytes (-9.23%)
Burrows-Wheeler transform (Wikipedia)	bzip2	bzip2 -9	52869 bytes	-4562 bytes (-7.94%)
LZMA2 (Wikipedia)	xz	xz -9	53664 bytes	-3767 bytes (-6.56%)
Zstandard (Wikipedia)	zstd	zstd -19	55260 bytes	-2171 bytes (-3.78%)

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.