Is it possible to convert regular JSON to GeoJSON?

So this python script will take a json input file as detailed above and write properly formatted geojson to the output file.

run the script in terminal by doing python input_file.json output_file.json

#! usr/bin/env python

from sys import argv
from os.path import exists
import simplejson as json 

script, in_file, out_file = argv

data = json.load(open(in_file))

geojson = {
    "type": "FeatureCollection",
    "features": [
        "type": "Feature",
        "geometry" : {
            "type": "Point",
            "coordinates": [d["lon"], d["lat"]],
        "properties" : d,
     } for d in data]

output = open(out_file, 'w')
json.dump(geojson, output)

print geojson

I would recommend you to follow:

1- Convert your json into csv using

2- Create a vrt file for your csv data using

3- Use GDAL (ogr2ogr -f 'GeoJSON' output_file input_file)

4- Load output geojson file to your map using leaflet library

I hope it will help.