This simple system allows for excellent compression of uri encoded JSON strings using the JSCrush algorithm.

• The JSCrush algorithm eliminates repeated substrings similar to the zip algorithm.
• Strings are processed to swap out common json characters with ones that won't be escaped in the URL.
• This can be used to compress any type of string but is optimized for uri encoded JSON.
• The algorithm speed is reasonable for most cases but can be slow for long strings (>10K characters).
• The character \u0001 (start of heading) is used as a delimiter and will be removed if it appears.
• No additional libraries or dependencies are required and minified code is under 2k!

• Download from github or use npm install jsoncrush
• Import JSONCrush as a module with something like import JSONCrush from './JSONCrush.js'
• Just pass a JSON string to JSONCrush.crush() to compress it!
• If used in a url you must call encodeURIComponent() to escape any special characters.
• To decode just pass the crushed string to JSONCrush.uncrush()
• See index.html for a demonstration.

• To compress longish urls with JSON data (<10K characters) so they can be shared and bookmarked easily.

• {"students":[{"name":"Jack","age":17},{"name":"Jill","age":16},{"name":"Sue","age":16}],"class":"math"}

• %7B%22students%22%3A%5B%7B%22name%22%3A%22Jack%22%2C%22age%22%3A17%7D%2C%7B%22name%22%3A%22Jill%22%2C%22age%22%3A16%7D%2C%7B%22name%22%3A%22Sue%22%2C%22age%22%3A16%7D%5D%2C%22class%22%3A%22math%22%7D

• ('students!%5B*Jack-7.Jill-6.Sue-6)%5D~class!'math')*('name!'-'~age!1.)%2C*%01.-*_

• eyJzdHVkZW50cyI6W3sibmFtZSI6IkphY2siLCJhZ2UiOjE3fSx7Im5hbWUiOiJKaWxsIiwiYWdlIjoxNn0seyJuYW1lIjoiU3VlIiwiYWdlIjoxNn1dLCJjbGFzcyI6Im1hdGgifQ

• N4IgzgLgrgJgpgOwmEAuA2qBBDAtnNEAKWwGMBrEAGhGwHMDUBGAdgF8qs9HiBLAG37VaDNEwBsHLvkIBlKARr1GEtgF0apftjApUIXNggALEGyA

• (class%3Amath%2Cstudents%3A!((age%3A17%2Cname%3AJack)%2C(age%3A16%2Cname%3AJill)%2C(age%3A16%2Cname%3ASue)))

• XQAAAAJFAAAAAAAAAABBKgpnQ92WP4KxyTTsJxd-yINVbdp6KNXjexeyXFUtdZzJEFmXfd4HbreByHRJ7Nv-aehaORBt6sv_9IjAAA

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JSONCrush by Frank Force [MIT] https://github.com/KilledByAPixel/JSONCrush

Using Javascript crusher by @aivopaas [MIT] http://www.iteral.com/jscrush