jsondown

This is a drop-in replacement for LevelDOWN that writes to a JSON file on disk.
It also retains the contents of the entire JSON file in memory, so it's only really useful for debugging purposes and/or very small data stores that need just a pinch of persistence.

Example

var levelup = require('levelup');
var db = levelup('./mydata.json', { db: require('jsondown') });

db.put('foo', 'bar');

Alternative Runtimes

In addition to NodeJS, JsonDOWN can be used on the RuntimeJS javascript unikernel. Additional details are provided in the guides section of this repositiory.
LevelDOWN: https://github.com/rvagg/node-leveldown RuntimeJS: https://github.com/runtimejs/runtime