Welcome!
This is a compression challenge for Web developers.
The goal is to compress this HTML page containing the complete work of William Shakespeare,
based on the version hosted on Project Gutenberg.
All means are allowed to compress the file, but the decompression must happen entirely in the browser.
The page is encoded in UTF-8 with BOM and has a size of 5,324,821 bytes.
All characters are ASCII. (\n !"&'(),-.0123456789:;<>?ABCDEFGHIJKLMNOPQRSTUVWXYZ[]_abcdefghijklmnopqrstuvwxyz|})
More info on on ANALYSIS.md
Rules
- Fork this repo.
- Copy the "example" folder and rename the copy with the current date + your Github username.
- Your folder must contain a file called index.html, displaying the same content than the example file (a <xmp> HTML tag followed by a long text).
- Compress the file as much as you can without altering the output.
- You MUST use HTML & JavaScript only for the decoder.
- You CAN create other text and/or binary files at your convenience.
- The decompression must happen in the browser, without any user input, and use a reasonable amount of time (<60 min) and memory (<6GB) on a modern computer.
- You CAN replace characters with HTML entities.
- You CAN use different charsets than UTF-8.
- You CAN use temporary elements (text, canvas...), but you need to hide them or remove them from the DOM after decompression.
- You CAN NOT perform network queries or read any file that's not present in your folder.
- You CAN NOT gather data from browser extensions, text-to-speech API, I18n API, Spellchack API, browser/JS error messages, file names, HTTP headers, etc. (non-exhaustive list but you get the idea.)
- Your score is the total size, in bytes, of the file(s) present in your folder.
- You MUST provide a README file explaining your process, as well as the tools used and the uncompressed source code of your decoder/decompressor (these files size don't count in your score)
- If you break the currect record, please open a merge request to appear in the leaderboard.
Reward
- A first reward of 50€ (via Paypal) will be granted to the first person that beats 1 170 000 bytes
- Then, a reward of math.ceil(X) € will be granted to each person that beats the previous record by X kb.
Leaderboard
- 1- Konstantin Zaborskikh 1 199 249 bytes (context mixing combined with a simple dictionary-based preprocessor for English text demo, readme
- 2- Eyal Gruss: 1 356 386 bytes (using text preprocessing + Burrows-Wheeler + Move-to-front variant + Huffman + Burrows-Wheeler on bits + ECT PNG bootstrap + crEnc) demo, readme
- 3- Matt Mastrac: 1 488 397 bytes (using better PNG bootstrap) demo, readme
- 4- winstonewert: 1 971 890 bytes (using PNG bootstrap) demo, readme
- 5- jeremyrixon: 2 961 629 bytes (using Unicode and LZW) demo, readme