AngularJS 1.3.11 - as small as it gets (near-perfect GZIP compression)

Choose a version:

The original file has 952033 bytes (929.7k) and is available from the project website.
There you can find the official minified version, too, which brings down the size to 125381 bytes (122.4k, 13%).

After GZIP compression these minified files vary in size:

Boot	52833 bytes (51.6k)	CDN
Baidu	46514 bytes (45.4k)	CDN
cdnjs	46388 bytes (45.3k)	CDN
unpkg	46071 bytes (45.0k)	CDN
gzip -6 (default)	46044 bytes (45.0k)	local copy
Google	45988 bytes (44.9k)	CDN
Yandex	45960 bytes (44.9k)	CDN
gzip -9	45960 bytes (44.9k)	local copy
7zip -mx=9 -tgzip	44605 bytes (43.6k)	local copy
kzip -s0 -rn -b0	44557 bytes (43.5k)	local copy
zultra	44555 bytes (43.5k)	local copy
libdeflate -12	44545 bytes (43.5k)	local copy
pigz -11 -n	44499 bytes (43.5k)	local copy
Zopfli	44462 bytes (43.4k)	local copy
Zopfli (defluff)	44461 bytes (43.4k)	local copy

perma-link to the smallest file on my server:
http://minime.stephan-brumme.com/files/angularjs/angular-1.3.11.min.js (or via HTTPS)

You will automatically get the smallest AngularJS 1.3.11 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 1498 bytes by using my AngularJS 1.3.11 Zopfli version instead of the best available CDN (3.37% smaller than Yandex, 44462 vs. 45960 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 --bsr40 --lazy --ohh

(found February 17, 2016)

Description	Value	Parameter
iterations	100000	--i100000
maximum blocks	8	--mb8
maximum length score	256	--mls256
block splitting recursion	40	--bsr40
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 (44461 bytes).

Download

Verify file integrity

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

MD5:
curl --silent --compressed https://code.angularjs.org/1.3.11/angular.min.js --location | md5sum
ba3df8d1987e201d5666690b8e3278ae -
curl --silent --compressed https://minime.stephan-brumme.com/files/angularjs/angular-1.3.11.min.zopfli.js.gz | md5sum
ba3df8d1987e201d5666690b8e3278ae -

SHA1:
curl --silent --compressed https://code.angularjs.org/1.3.11/angular.min.js --location | sha1sum
8375864b9a1a117f9c599ec881a9fd5b9fde566a -
curl --silent --compressed https://minime.stephan-brumme.com/files/angularjs/angular-1.3.11.min.zopfli.js.gz | sha1sum
8375864b9a1a117f9c599ec881a9fd5b9fde566a -

These CDNs send you the original file:

CDN	Size (compressed)	MD5 (uncompressed)	Timestamp
Boot	52833 bytes	ba3df8d1987e201d5666690b8e3278ae	March 18, 2015 @ 10:58
cdnjs	46388 bytes	ba3df8d1987e201d5666690b8e3278ae	January 27, 2015 @ 06:30
unpkg	46071 bytes	ba3df8d1987e201d5666690b8e3278ae	July 11, 2016 @ 15:53
Google	45988 bytes	ba3df8d1987e201d5666690b8e3278ae	January 27, 2015 @ 00:45
Yandex	45960 bytes	ba3df8d1987e201d5666690b8e3278ae	June 11, 2015 @ 14:17

And some CDNs send you a different file:

CDN	Size (compressed)	MD5 (uncompressed)	Comment / Diff	Timestamp
Baidu	46514 bytes	bf5974d40158adff7a639bbcb8d4db37	only whitespaces differ	April 3, 2015 @ 04:57

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
44462 bytes	-2 bytes	zopfli --i100000 --mls256 --bsr40 --lazy --ohh	February 17, 2016 @ 19:42
44464 bytes	-3 bytes	zopfli --i100000 --mls16384 --bsr22 --lazy --ohh	November 30, 2015 @ 13:43
44467 bytes	-6 bytes	zopfli --i10000 --mls1024 --bsr6 --lazy --ohh	September 9, 2015 @ 02:12
44473 bytes	-1 byte	zopfli --i1000 --mls1024 --bsr10 --lazy --ohh	September 7, 2015 @ 18:43
44474 bytes	-2 bytes	zopfli --i1000 --mls1024 --bsr14 --lazy --ohh	September 7, 2015 @ 18:43
44476 bytes	–	zopfli --i100 --mls4096 --bsr12 --lazy --ohh	September 7, 2015 @ 16:35

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 @ 12:56.

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	44495	44491	44491	44495	44481	44498	44495	44490	44484	44488	44487	44488	44484	44483	44488
4	44492	44491	44491	44495	44495	44485	44487	44487	44496	44496	44482	44478	44491	44469	44494
6	44473	44474	44494	44494	44470	44475	44476	44475	44474	44466	44470	44468	44470	44468	44489
7	44482	44473	44493	44472	44473	44473	44475	44471	44472	44473	44470	44468	44470	44473	44475
8	44495	44472	44485	44472	44471	44473	44477	44472	44472	44475	44475	44473	44470	44470	44488
9	44493	44494	44481	44493	44471	44473	44466	44467	44472	44479	44473	44472	44470	44473	44500
10	44501	44498	44489	44473	44471	44473	44476	44467	44476	44470	44470	44472	44470	44470	44473
11	44500	44486	44492	44472	44471	44473	44471	44489	44472	44468	44475	44468	44473	44468	44507
12	44493	44495	44483	44492	44494	44468	44474	44468	44473	44471	44473	44471	44470	44468	44488
13	44496	44500	44493	44473	44472	44472	44466	44468	44473	44471	44470	44471	44470	44471	44492
14	44497	44487	44493	44489	44471	44494	44468	44473	44486	44471	44473	44468	44470	44468	44500
15	44484	44489	44493	44472	44475	44472	44475	44467	44473	44471	44473	44471	44469	44468	44473
16	44489	44488	44493	44473	44472	44472	44467	44471	44472	44472	44469	44471	44469	44470	44502
17	44480	44490	44492	44481	44472	44491	44489	44468	44472	44471	44474	44471	44470	44468	44490
18	44481	44492	44492	44487	44491	44489	44488	44484	44473	44470	44474	44471	44470	44469	44499
19	44486	44485	44493	44492	44486	44489	44475	44487	44473	44470	44468	44471	44486	44468	44490
20	44493	44482	44496	44471	44492	44494	44489	44477	44467	44471	44475	44471	44468	44468	44476
21	44495	44473	44487	44473	44472	44473	44471	44469	44473	44473	44468	44470	44470	44468	44470
22	44471	44473	44474	44472	44471	44473	44467	44469	44475	44470	44472	44468	44469	44464	44470
23	44492	44471	44494	44472	44472	44477	44478	44470	44472	44470	44473	44470	44470	44473	44475
25	44493	44490	44494	44492	44484	44480	44490	44476	44471	44475	44473	44473	44468	44466	44502
30	44473	44473	44477	44471	44471	44473	44476	44470	44473	44469	44475	44472	44468	44468	44475
40	44496	44501	44494	44472	44472	44473	44474	44462	44472	44470	44473	44471	44470	44470	44490

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	44476 bytes	–	100%
1,000	44468 bytes	-8 bytes	100%
10,000	44465 bytes	-3 bytes	100%
100,000	44462 bytes	-3 bytes	0.87%
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)	44557 bytes	+95 bytes (+0.21%)	–
1	44558 bytes	+96 bytes (+0.22%)	+1 byte
2	44582 bytes	+120 bytes (+0.27%)	+25 bytes
3	44619 bytes	+157 bytes (+0.35%)	+62 bytes
4	44629 bytes	+167 bytes (+0.38%)	+72 bytes
5	44659 bytes	+197 bytes (+0.44%)	+102 bytes
6	44644 bytes	+182 bytes (+0.41%)	+87 bytes
7	44653 bytes	+191 bytes (+0.43%)	+96 bytes
8	44674 bytes	+212 bytes (+0.48%)	+117 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	35500 bytes	-8962 bytes (-20.16%)
RAR (proprietary)	RAR	rar a -m5 -md64m -mc63:128t -mt1	37065 bytes	-7397 bytes (-16.64%)
PPMd (Wikipedia)	7zip	7za a -mx=9 -m0=ppmd	38879 bytes	-5583 bytes (-12.56%)
Brotli (Wikipedia)	brotli	brotli -q 11	40885 bytes	-3577 bytes (-8.05%)
Burrows-Wheeler transform (Wikipedia)	bzip2	bzip2 -9	41620 bytes	-2842 bytes (-6.39%)
LZMA2 (Wikipedia)	xz	xz -9	42308 bytes	-2154 bytes (-4.84%)
Zstandard (Wikipedia)	zstd	zstd -19	43428 bytes	-1034 bytes (-2.33%)

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.