1KB JavaScript Packer

ScriptCompress.com's 1KB JavaScript Packer:

Below is a mini web application that does a simple replacement of repeated words and phrases with single characters and then packs to a self extracting JavaScript. Try the *NEW* 32KB JavaScript Packer (works better and it features full AST walking, error fixing, JS parsing and code rewrite through a heavily modded UglifyJS) that was originally a 200KB HTML5 web app (minified, packed and compressed inside a SVG image), plus it used to rely on a bloated 120KB JQuery file (rewrote that crap out, I hate JQuery).

to use this packer you must push the Execute HTML button to run it
this HTML application is packed/compressed to 1,024 bytes (including <script> tags)
it works best with code that contains many repeated words over 2 characters long
generated scripts work even in Internet Explorer (unlike PNG hacks)
works great on large scripts over 10KB (I even packed a complete 4.5MB Holy Bible to under 3MB)
TIP: minify your script first down to a single line, use the 'Minify Only' feature HERE
app also lists "keywords" (sorted largest-smallest/common-least) from any text (1st little box), handy for many uses

"2nd Crush" - A 1KB JavaScript Packer: (modded 1st Crush)

This packer (below) is much more aggressive. It looks for any word, phrase, character or punctuation repetition to switch with single characters and then everything gets packed to a self extract/auto executing JavaScript.

to use this packer, you must push the Execute JS button to start it
JavaScript application is 1,024 bytes without packing or compress (not including <script> tags)
works best with small scripts (starts to crash my browser over 2 to 10KB range, now is when app above comes in handy)