Choose a version:
34% The original file has 242915 bytes (237.2k) and is available from the project website.
There you can find the official minified version, too, which brings down the size to 83501 bytes (81.5k, 34%).

After GZIP compression these minified files vary in size:
Microsoft
  37340 bytes (36.5k)
CDN
jsdelivr
  34051 bytes (33.3k)
CDN
Boot
  34047 bytes (33.2k)
CDN
cdnjs
  30281 bytes (29.6k)
CDN
Baidu
  29574 bytes (28.9k)
CDN
gzip -6 (default)
  29397 bytes (28.7k)
local copy
Google
  29373 bytes (28.7k)
CDN
cdnhttps
  29373 bytes (28.7k)
CDN
Sina
  29343 bytes (28.7k)
CDN
gzip -9
  29333 bytes (28.6k)
local copy
7zip -mx=9 -tgzip
  28361 bytes (27.7k)
local copy
Yandex
  28291 bytes (27.6k)
CDN
libdeflate -12
  28287 bytes (27.6k)
local copy
pigz -11 -n
  28283 bytes (27.6k)
local copy
kzip -s0 -rn -b3
  28279 bytes (27.6k)
local copy
Zopfli
  28268 bytes (27.6k)
local copy
Zopfli (defluff)
  28266 bytes (27.6k)
local copy

perma-link to the smallest file on my server:
http://minime.stephan-brumme.com/files/jquery/jquery-2.0.2.min.js (or via HTTPS)

You will automatically get the smallest jQuery 2.0.2 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 23 bytes by using my jQuery 2.0.2 Zopfli version instead of the best available CDN (0.08% smaller than Yandex, 28268 vs. 28291 bytes):
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 --bsr16 --lazy --ohh

(found September 5, 2015)
Description Value Parameter
iterations 100000  --i100000
maximum blocks 8  --mb8
maximum length score 1024  --mls1024
block splitting recursion 16  --bsr16
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 2 more bytes (28266 bytes).

Verify file integrity

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

MD5:
curl --silent --compressed https://code.jquery.com/jquery-2.0.2.min.js --location | md5sum
6e18b5a96b1a354c922a5bba3d80cd13  -
curl --silent --compressed https://minime.stephan-brumme.com/files/jquery/jquery-2.0.2.min.zopfli.js.gz | md5sum
6e18b5a96b1a354c922a5bba3d80cd13  -

SHA1:
curl --silent --compressed https://code.jquery.com/jquery-2.0.2.min.js --location | sha1sum
1e0331b6dd11e6b511d2e3d75805f5ccdb3b83df  -
curl --silent --compressed https://minime.stephan-brumme.com/files/jquery/jquery-2.0.2.min.zopfli.js.gz | sha1sum
1e0331b6dd11e6b511d2e3d75805f5ccdb3b83df  -

These CDNs send you the original file:
CDN Size (compressed) MD5 (uncompressed) Timestamp
Microsoft 37340 bytes 6e18b5a96b1a354c922a5bba3d80cd13 (invalid)
jsdelivr 34051 bytes 6e18b5a96b1a354c922a5bba3d80cd13 (invalid)
Sina 29343 bytes 6e18b5a96b1a354c922a5bba3d80cd13 (invalid)
Yandex 28291 bytes 6e18b5a96b1a354c922a5bba3d80cd13 June 15, 2015 @ 21:17

And some CDNs send you a different file:
CDN Size (compressed) MD5 (uncompressed) Comment / Diff Timestamp
Boot 34047 bytes 45b39185ca580f908597130ad22093c0 < //@ sourceMappingURL=jquery-2.0.2.min.map
> //@ sourceMappingURL=jquery.min.map
March 18, 2015 @ 09:43
cdnjs 30281 bytes 45b39185ca580f908597130ad22093c0 < //@ sourceMappingURL=jquery-2.0.2.min.map
> //@ sourceMappingURL=jquery.min.map
(invalid)
Baidu 29574 bytes e4fb0cb0f8453fdbc02dc71cf32c5748 < //@ sourceMappingURL=jquery-2.0.2.min.map
> //@ sourceMappingURL=jquery.min.map
January 7, 2015 @ 10:16
Google 29373 bytes 45b39185ca580f908597130ad22093c0 < //@ sourceMappingURL=jquery-2.0.2.min.map
> //@ sourceMappingURL=jquery.min.map
(invalid)
cdnhttps 29373 bytes 45b39185ca580f908597130ad22093c0 only different sourceMappingURL December 24, 2015 @ 07:33

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

Other Versions

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

3.3.1, 3.3.0,
3.2.1, 3.2.0,
3.1.1, 3.1.0,
3.0.0,
2.2.4, 2.2.3, 2.2.2, 2.2.1, 2.2.0,
2.1.4, 2.1.3, 2.1.2, 2.1.1, 2.1.0,
2.0.3, 2.0.2, 2.0.1, 2.0.0,
1.12.4, 1.12.3, 1.12.2, 1.12.1, 1.12.0,
1.11.3, 1.11.2, 1.11.1, 1.11.0,
1.10.2, 1.10.1, 1.10.0,
1.9.1, 1.9.0,
1.8.3, 1.8.2, 1.8.1, 1.8.0,
1.7.2, 1.7.1, 1.7.0,
1.6.4, 1.6.3, 1.6.2, 1.6.1, 1.6,
1.5.2, 1.5.1, 1.5,
1.4.4, 1.4.3, 1.4.2, 1.4.1, 1.4,
1.3.2, 1.3.1, 1.3,
1.2.6, 1.2.5, 1.2.4, 1.2.3, 1.2.2, 1.2.1, 1.2,
1.1.4, 1.1.3, 1.1.2, 1.1.1, 1.1,
1.0.4, 1.0.3, 1.0.2, 1.0.1, 1.0

The project site contains an overview how well these versions were compressed.
Other interesting projects are AngularJS, BackboneJS, Bootstrap, D3, Dojo, Ember, Knockout, lodash, React, Socket.IO, ThreeJS, UnderscoreJS and Vue.

Changelog

Best Zopfli parameters so far:
Size Improvement Parameters Found
28268 bytes -1 byte zopfli --i100000 --mls1024 --bsr16 --lazy --ohh September 5, 2015 @ 23:48
28269 bytes -3 bytes zopfli --i100000 --mls512 --bsr6 --lazy --ohh September 1, 2015 @ 22:46
28272 bytes -1 byte zopfli --i10000 --mls512 --bsr6 --lazy --ohh September 1, 2015 @ 20:57
28273 bytes -1 byte zopfli --i10000 --mls512 --bsr9 --lazy --ohh September 1, 2015 @ 20:54
28274 bytes zopfli --i100 --mls1024 --bsr11 --lazy --ohh September 1, 2015 @ 20:15

If there are multiple parameter sets yielding the same compressed size, only the first one found is shown.

Most recent activity on June 16, 2016 @ 14:40.

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
28275 28275 28276 28276 28275 28277 28277 28273 28272 28270 28275 28274 28275 28278 28293
28272 28279 28277 28283 28275 28274 28269 28274 28273 28272 28272 28272 28268 28274 28276
28275 28275 28275 28274 28281 28276 28283 28282 28269 28273 28274 28272 28269 28279 28281
28276 28275 28280 28284 28276 28273 28278 28275 28269 28273 28274 28275 28272 28273 28280
28282 28281 28284 28279 28275 28276 28278 28276 28270 28269 28268 28273 28269 28273 28280
28276 28281 28282 28281 28283 28276 28282 28276 28270 28269 28273 28272 28268 28273 28282
28276 28277 28276 28278 28276 28277 28273 28274 28271 28269 28273 28273 28270 28276 28282
28276 28275 28282 28282 28276 28277 28275 28274 28270 28269 28269 28274 28269 28273 28280
28275 28275 28275 28276 28277 28275 28279 28275 28269 28272 28269 28269 28268 28274 28280
28282 28276 28275 28281 28275 28276 28276 28274 28270 28270 28274 28274 28268 28279 28280
28276 28275 28277 28275 28279 28273 28273 28274 28274 28268 28272 28268 28269 28280 28282
28282 28284 28280 28283 28276 28276 28279 28274 28273 28273 28275 28278 28272 28273 28280
28285 28280 28286 28276 28278 28277 28280 28274 28271 28268 28271 28269 28269 28277 28280
28276 28277 28280 28283 28277 28276 28277 28273 28273 28273 28276 28273 28269 28280 28282
28282 28277 28275 28278 28276 28276 28280 28273 28273 28273 28274 28272 28272 28273 28280
28276 28281 28280 28282 28278 28276 28278 28274 28273 28276 28276 28278 28274 28280 28278
28282 28276 28281 28280 28281 28276 28277 28276 28273 28276 28277 28275 28274 28275 28279
28275 28277 28275 28275 28278 28269 28272 28272 28274 28274 28276 28277 28272 28274 28280
28280 28278 28280 28281 28277 28277 28274 28274 28274 28273 28274 28274 28272 28276 28279
28283 28276 28275 28281 28277 28276 28269 28275 28274 28274 28275 28272 28272 28273 28279
28282 28277 28277 28276 28276 28273 28279 28273 28273 28273 28278 28273 28272 28274 28277
28280 28277 28275 28286 28276 28276 28273 28275 28274 28276 28275 28273 28272 28280 28280
28282 28277 28285 28279 28276 28276 28273 28276 28273 28273 28276 28273 28272 28280 28281

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 28273 bytes 100%
1,000 28273 bytes 100%
10,000 28271 bytes -2 bytes 100%
100,000 28268 bytes -3 bytes 17.39%
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
28357 bytes +89 bytes (+0.31%) +78 bytes
28357 bytes +89 bytes (+0.31%) +78 bytes
28280 bytes +12 bytes (+0.04%) +1 byte
28279 bytes +11 bytes (+0.04%)
28290 bytes +22 bytes (+0.08%) +11 bytes
28324 bytes +56 bytes (+0.20%) +45 bytes
28369 bytes +101 bytes (+0.36%) +90 bytes
28400 bytes +132 bytes (+0.47%) +121 bytes
28423 bytes +155 bytes (+0.55%) +144 bytes

Non-DEFLATE Algorithms

Archivers based on completely different compression algorithms often produce superior results.
Unfortunately, browsers only support gzip compression at the moment.
Algorithm Program Parameters Size Compared To Best Zopfli
ZPAQ (Wikipedia) zpaq zpaq -method 69 23471 bytes -4797 bytes (-16.97%)
RAR (proprietary) RAR rar a -m5 -md64m -mc63:128t -mt1 23951 bytes -4317 bytes (-15.27%)
PPMd (Wikipedia) 7zip 7za a -mx=9 -m0=ppmd 25149 bytes -3119 bytes (-11.03%)
Brotli (Wikipedia) brotli brotli -q 11 26451 bytes -1817 bytes (-6.43%)
Burrows-Wheeler transform (Wikipedia) bzip2 bzip2 -9 26734 bytes -1534 bytes (-5.43%)
LZMA2 (Wikipedia) xz xz -9 27556 bytes -712 bytes (-2.52%)
Zstandard (Wikipedia) zstd zstd -19 27991 bytes -277 bytes (-0.98%)

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):


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 2018.
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