AngularJS 1.0.8 - as small as it gets (near-perfect GZIP compression)

Choose a version:

The original file has 504757 bytes (492.9k) and is available from the project website.
There you can find the official minified version, too, which brings down the size to 81447 bytes (79.5k, 16%).

After GZIP compression these minified files vary in size:

Boot	34752 bytes (33.9k)	CDN
Baidu	30817 bytes (30.1k)	CDN
cdnjs	30713 bytes (30.0k)	CDN
gzip -6 (default)	30574 bytes (29.9k)	local copy
Google	30553 bytes (29.8k)	CDN
gzip -9	30517 bytes (29.8k)	local copy
Yandex	30516 bytes (29.8k)	CDN
jsdelivr	30516 bytes (29.8k)	CDN
libdeflate -12	29621 bytes (28.9k)	local copy
7zip -mx=9 -tgzip	29618 bytes (28.9k)	local copy
kzip -s0 -rn -b0	29592 bytes (28.9k)	local copy
zultra	29580 bytes (28.9k)	local copy
pigz -11 -n	29568 bytes (28.9k)	local copy
Zopfli	29536 bytes (28.8k)	local copy
Zopfli (defluff)	29535 bytes (28.8k)	local copy

perma-link to the smallest file on my server:
http://minime.stephan-brumme.com/files/angularjs/angular-1.0.8.min.js (or via HTTPS)

You will automatically get the smallest AngularJS 1.0.8 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 980 bytes by using my AngularJS 1.0.8 Zopfli version instead of the best available CDN (3.32% smaller than jsdelivr, 29536 vs. 30516 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 --mls1024 --bsr12 --lazy --ohh

(found November 26, 2015)

Description	Value	Parameter
iterations	100000	--i100000
maximum blocks	8	--mb8
maximum length score	1024	--mls1024
block splitting recursion	12	--bsr12
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 (29535 bytes).

Download

Verify file integrity

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

MD5:
curl --silent --compressed https://code.angularjs.org/1.0.8/angular-1.0.8.min.js --location | md5sum
c2361b70ca81452c936ee73e4a238fe2 -
curl --silent --compressed https://minime.stephan-brumme.com/files/angularjs/angular-1.0.8.min.zopfli.js.gz | md5sum
c2361b70ca81452c936ee73e4a238fe2 -

SHA1:
curl --silent --compressed https://code.angularjs.org/1.0.8/angular-1.0.8.min.js --location | sha1sum
24189bcc5e481161d37f18ffdadd7a5705cba22f -
curl --silent --compressed https://minime.stephan-brumme.com/files/angularjs/angular-1.0.8.min.zopfli.js.gz | sha1sum
24189bcc5e481161d37f18ffdadd7a5705cba22f -

These CDNs send you the original file:

CDN	Size (compressed)	MD5 (uncompressed)	Timestamp
Boot	34752 bytes	c2361b70ca81452c936ee73e4a238fe2	March 18, 2015 @ 10:15
cdnjs	30713 bytes	c2361b70ca81452c936ee73e4a238fe2	(invalid)
Google	30553 bytes	c2361b70ca81452c936ee73e4a238fe2	(invalid)
Yandex	30516 bytes	c2361b70ca81452c936ee73e4a238fe2	June 11, 2015 @ 14:17
jsdelivr	30516 bytes	c2361b70ca81452c936ee73e4a238fe2	August 7, 2014 @ 18:30

And some CDNs send you a different file:

CDN	Size (compressed)	MD5 (uncompressed)	Comment / Diff	Timestamp
Baidu	30817 bytes	f6ac162a2fdc228c5d49c2f5667658a2	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
29536 bytes	-3 bytes	zopfli --i100000 --mls1024 --bsr12 --lazy --ohh	November 26, 2015 @ 16:49
29539 bytes	-4 bytes	zopfli --i10000 --mls1024 --bsr13 --lazy --ohh	September 10, 2015 @ 06:08
29543 bytes	-6 bytes	zopfli --i1000 --mls1024 --bsr12 --lazy --ohh	September 7, 2015 @ 21:01
29549 bytes	–	zopfli --i100 --mls1024 --bsr12 --lazy --ohh	September 7, 2015 @ 16:19

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 @ 12:47.

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	29554	29553	29554	29553	29554	29554	29554	29552	29551	29553	29553	29553	29553	29557	29557
4	29554	29552	29552	29552	29553	29553	29552	29553	29552	29553	29553	29551	29557	29562	29559
6	29552	29549	29551	29553	29555	29551	29552	29552	29551	29553	29555	29553	29552	29550	29561
7	29552	29552	29557	29553	29553	29555	29551	29554	29552	29549	29552	29546	29556	29551	29561
8	29562	29559	29551	29552	29552	29552	29551	29555	29552	29552	29550	29544	29554	29549	29557
9	29550	29556	29554	29554	29554	29552	29554	29555	29552	29553	29552	29546	29551	29549	29552
10	29552	29553	29550	29555	29554	29552	29551	29556	29554	29550	29552	29546	29554	29549	29559
11	29552	29553	29551	29552	29552	29555	29551	29554	29554	29550	29556	29544	29551	29559	29559
12	29553	29560	29552	29552	29554	29551	29552	29552	29552	29536	29552	29548	29557	29549	29561
13	29551	29553	29551	29557	29553	29552	29552	29552	29552	29536	29552	29553	29554	29547	29552
14	29552	29555	29551	29554	29552	29551	29552	29552	29552	29553	29552	29550	29551	29549	29559
15	29554	29556	29551	29552	29554	29553	29552	29553	29552	29549	29552	29544	29557	29559	29561
16	29553	29554	29551	29553	29554	29552	29552	29553	29552	29553	29552	29553	29551	29554	29559
17	29552	29552	29552	29556	29554	29554	29554	29554	29554	29542	29551	29553	29551	29554	29559
18	29550	29554	29551	29552	29552	29552	29551	29554	29554	29536	29552	29546	29551	29550	29561
19	29552	29560	29551	29553	29552	29555	29554	29554	29552	29536	29552	29544	29555	29549	29559
20	29550	29559	29551	29554	29554	29554	29552	29552	29552	29540	29555	29552	29551	29551	29552
21	29553	29552	29551	29552	29552	29551	29552	29554	29553	29552	29552	29553	29552	29551	29560
22	29554	29556	29551	29552	29552	29552	29552	29552	29552	29552	29552	29549	29552	29556	29561
23	29553	29553	29555	29555	29553	29555	29551	29553	29552	29553	29556	29546	29551	29561	29558
25	29553	29559	29552	29553	29553	29552	29553	29554	29554	29552	29552	29544	29552	29551	29558
30	29554	29553	29552	29561	29554	29551	29555	29554	29552	29556	29556	29555	29553	29550	29559
40	29554	29554	29551	29560	29553	29555	29555	29552	29552	29549	29552	29553	29551	29550	29557

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	29549 bytes	–	100%
1,000	29542 bytes	-7 bytes	100%
10,000	29539 bytes	-3 bytes	100%
100,000	29536 bytes	-3 bytes	1.16%
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)	29592 bytes	+56 bytes (+0.19%)	–
1	29592 bytes	+56 bytes (+0.19%)	–
2	29621 bytes	+85 bytes (+0.29%)	+29 bytes
3	29636 bytes	+100 bytes (+0.34%)	+44 bytes
4	29642 bytes	+106 bytes (+0.36%)	+50 bytes
5	29668 bytes	+132 bytes (+0.45%)	+76 bytes
6	29689 bytes	+153 bytes (+0.52%)	+97 bytes
7	29672 bytes	+136 bytes (+0.46%)	+80 bytes
8	29700 bytes	+164 bytes (+0.56%)	+108 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	24593 bytes	-4943 bytes (-16.74%)
RAR (proprietary)	RAR	rar a -m5 -md64m -mc63:128t -mt1	25236 bytes	-4300 bytes (-14.56%)
PPMd (Wikipedia)	7zip	7za a -mx=9 -m0=ppmd	26147 bytes	-3389 bytes (-11.47%)
Brotli (Wikipedia)	brotli	brotli -q 11	27214 bytes	-2322 bytes (-7.86%)
Burrows-Wheeler transform (Wikipedia)	bzip2	bzip2 -9	28219 bytes	-1317 bytes (-4.46%)
LZMA2 (Wikipedia)	xz	xz -9	28468 bytes	-1068 bytes (-3.62%)
Zstandard (Wikipedia)	zstd	zstd -19	29131 bytes	-405 bytes (-1.37%)

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.