TfL tube line & station data in JSON format.

tfl-tube-data.json

var lines = {
	B: 'Bakerloo',
	C: 'Central',
	D: 'District',
	H: 'Hammersmith & Circle',
	J: 'Jubilee',
	M: 'Metropolitan',
	N: 'Northern',
	P: 'Piccadilly',
	V: 'Victoria',
	W: 'Waterloo & City'
};




var stations = {
	"BST": "Baker Street",
	"CHX": "Charing Cross",
	"ERB": "Edgware Road (Bakerloo)",
	"ELE": "Elephant and Castle",
	"EMB": "Embankment",
	"HSD": "Harlesden",
	"HAW": "Harrow and Wealdstone",
	"KGN": "Kensal Green",
	"KNT": "Kenton",
	"KPK": "Kilburn Park",
	"LAM": "Lambeth North",
	"MDV": "Maida Vale",
	"MYB": "Marylebone",
	"NWM": "North Wembley",
	"OXC": "Oxford Circus",
	"PAD": "Paddington",
	"PIC": "Piccadilly Circus",
	"QPK": "Queen's Park",
	"RPK": "Regent's Park",
	"SKT": "South Kenton",
	"SPK": "Stonebridge Park",
	"WAR": "Warwick Avenue",
	"WLO": "Waterloo",
	"WEM": "Wembley Central",
	"WJN": "Willesden Junction",
	"BNK": "Bank",
	"BDE": "Barkingside",
	"BNG": "Bethnal Green",
	"BDS": "Bond Street",
	"BHL": "Buckhurst Hill",
	"CYL": "Chancery Lane",
	"CHG": "Chigwell",
	"DEB": "Debden",
	"EBY": "Ealing Broadway",
	"EAC": "East Acton",
	"EPP": "Epping",
	"FLP": "Fairlop",
	"GHL": "Gants Hill",
	"GRH": "Grange Hill",
	"GFD": "Greenford",
	"HAI": "Hainault",
	"HLN": "Hanger Lane",
	"HOL": "Holborn",
	"HPK": "Holland Park",
	"LAN": "Lancaster Gate",
	"LEY": "Leyton",
	"LYS": "Leytonstone",
	"LST": "Liverpool Street",
	"LTN": "Loughton",
	"MAR": "Marble Arch",
	"MLE": "Mile End",
	"NEP": "Newbury Park",
	"NAC": "North Acton",
	"NHT": "Northolt",
	"NHG": "Notting Hill Gate",
	"PER": "Perivale",
	"QWY": "Queensway",
	"RED": "Redbridge",
	"ROD": "Roding Valley",
	"RUG": "Ruislip Gardens",
	"SBC": "Shepherd's Bush",
	"SNB": "Snaresbrook",
	"SRP": "South Ruislip",
	"SWF": "South Woodford",
	"STP": "St Paul's",
	"SFD": "Stratford",
	"THB": "Theydon Bois",
	"TCR": "Tottenham Court Road",
	"WAN": "Wanstead",
	"WAC": "West Acton",
	"WRP": "West Ruislip",
	"WCT": "White City",
	"WFD": "Woodford",
	"ACT": "Acton Town",
	"ALE": "Aldgate East",
	"BKG": "Barking",
	"BCT": "Barons Court",
	"BEC": "Becontree",
	"BLF": "Blackfriars",
	"BWR": "Bow Road",
	"BBB": "Bromley-by-Bow",
	"CST": "Cannon Street",
	"CHP": "Chiswick Park",
	"DGE": "Dagenham East",
	"DGH": "Dagenham Heathway",
	"ECM": "Ealing Common",
	"ECT": "Earl's Court",
	"EHM": "East Ham",
	"EPY": "East Putney",
	"ERD": "Edgware Road (H & C)",
	"EPK": "Elm Park",
	"FBY": "Fulham Broadway",
	"GRD": "Gloucester Road",
	"GUN": "Gunnersbury",
	"HMD": "Hammersmith (District and Picc)",
	"HST": "High Street Kensington",
	"HCH": "Hornchurch",
	"OLY": "Kensington (Olympia)",
	"KEW": "Kew Gardens",
	"MAN": "Mansion House",
	"MON": "Monument",
	"PGR": "Parsons Green",
	"PLW": "Plaistow",
	"PUT": "Putney Bridge",
	"RCP": "Ravenscourt Park",
	"RMD": "Richmond",
	"SSQ": "Sloane Square",
	"SKN": "South Kensington",
	"SFS": "Southfields",
	"SJP": "St. James's Park",
	"STB": "Stamford Brook",
	"STG": "Stepney Green",
	"TEM": "Temple",
	"THL": "Tower Hill",
	"TGR": "Turnham Green",
	"UPM": "Upminster",
	"UPB": "Upminster Bridge",
	"UPY": "Upney",
	"UPK": "Upton Park",
	"VIC": "Victoria",
	"WBT": "West Brompton",
	"WHM": "West Ham",
	"WKN": "West Kensington",
	"WMS": "Westminster",
	"WCL": "Whitechapel",
	"WDN": "Wimbledon",
	"WMP": "Wimbledon Park",
	"ALD": "Aldgate",
	"BAR": "Barbican",
	"ESQ": "Euston Square",
	"FAR": "Farringdon",
	"GPS": "Great Portland Street",
	"HMS": "Hammersmith",
	"KXX": "King's Cross St Pancras",
	"MGT": "Moorgate",
	"BER": "Bermondsey",
	"CWR": "Canada Water",
	"CWF": "Canary Wharf",
	"CNT": "Canning Town",
	"CPK": "Canons Park",
	"DHL": "Dollis Hill",
	"FRD": "Finchley Road",
	"GPK": "Green Park",
	"KIL": "Kilburn",
	"KBY": "Kingsbury",
	"LON": "London Bridge",
	"NEA": "Neasden",
	"NGW": "North Greenwich",
	"QBY": "Queensbury",
	"SWK": "Southwark",
	"SJW": "St John's Wood",
	"STA": "Stanmore",
	"SWC": "Swiss Cottage",
	"WPK": "Wembley Park",
	"WHD": "West Hampstead",
	"WLG": "Willesden Green",
	"AME": "Amersham",
	"CLF": "Chalfont and Latimer",
	"CWD": "Chorleywood",
	"CLW": "Colliers Wood",
	"CRX": "Croxley",
	"ETE": "Eastcote",
	"HOH": "Harrow on the Hill",
	"HDN": "Hillingdon",
	"ICK": "Ickenham",
	"MPK": "Moor Park",
	"NHR": "North Harrow",
	"NWP": "Northwick Park",
	"NWD": "Northwood",
	"NWH": "Northwood Hills",
	"PIN": "Pinner",
	"RLN": "Rayners Lane",
	"RKY": "Rickmansworth",
	"RUI": "Ruislip",
	"RUM": "Ruislip Manor",
	"UXB": "Uxbridge",
	"WAT": "Watford",
	"WHR": "West Harrow",
	"ANG": "Angel",
	"ARC": "Archway",
	"BAL": "Balham",
	"BPK": "Belsize Park",
	"BOR": "Borough",
	"BTX": "Brent Cross",
	"BUR": "Burnt Oak",
	"CTN": "Camden Town",
	"CHF": "Chalk Farm",
	"CPC": "Clapham Common",
	"CPN": "Clapham North",
	"CPS": "Clapham South",
	"COL": "Colindale",
	"EFY": "East Finchley",
	"EDG": "Edgware",
	"EUS": "Euston",
	"FYC": "Finchley Central",
	"GGR": "Golders Green",
	"GST": "Goodge Street",
	"HMP": "Hampstead",
	"HND": "Hendon Central",
	"HBT": "High Barnet",
	"HIG": "Highgate",
	"KEN": "Kennington",
	"KTN": "Kentish Town",
	"LSQ": "Leicester Square",
	"MHE": "Mill Hill East",
	"MOR": "Morden",
	"MCR": "Mornington Crescent",
	"OLD": "Old Street",
	"OVL": "Oval",
	"SWM": "South Wimbledon",
	"STK": "Stockwell",
	"TBE": "Tooting Bec",
	"TBY": "Tooting Broadway",
	"TOT": "Totteridge and Whetstone",
	"TPK": "Tufnell Park",
	"WST": "Warren Street",
	"WFY": "West Finchley",
	"WSP": "Woodside Park",
	"ALP": "Alperton",
	"AGR": "Arnos Grove",
	"ARL": "Arsenal",
	"BOS": "Boston Manor",
	"BGR": "Bounds Green",
	"CRD": "Caledonian Road",
	"CFS": "Cockfosters",
	"COV": "Covent Garden",
	"FPK": "Finsbury Park",
	"HTX": "Hatton Cross",
	"HTF": "Heathrow Terminal 4",
	"HRV": "Heathrow Terminal 5",
	"HRC": "Heathrow Terminals 123",
	"HRD": "Holloway Road",
	"HNC": "Hounslow Central",
	"HNE": "Hounslow East",
	"HNW": "Hounslow West",
	"HPC": "Hyde Park Corner",
	"KNB": "Knightsbridge",
	"MNR": "Manor House",
	"NEL": "North Ealing",
	"NFD": "Northfields",
	"OAK": "Oakwood",
	"OST": "Osterley",
	"PRY": "Park Royal",
	"RSQ": "Russell Square",
	"SEL": "South Ealing",
	"SHR": "South Harrow",
	"SGT": "Southgate",
	"SHL": "Sudbury Hill",
	"STN": "Sudbury Town",
	"TPL": "Turnpike Lane",
	"WGN": "Wood Green",
	"BHR": "Blackhorse Road",
	"BRX": "Brixton",
	"HBY": "Highbury and Islington",
	"PIM": "Pimlico",
	"SVS": "Seven Sisters",
	"TTH": "Tottenham Hale",
	"VUX": "Vauxhall",
	"WAL": "Walthamstow Central"	
};




var stationsOnLine = {
	B: ['BST', 'CHX', 'ERB', 'ELE', 'EMB', 'HSD', 'HAW', 'KGN', 'KNT', 'KPK', 'LAM', 'MDV', 'MYB', 'NWM', 'OXC', 'PAD', 'PIC', 'QPK', 'RPK', 'SKT', 'SPK', 'WAR', 'WLO', 'WEM', 'WJN'],
	C: ['BNK', 'BDE', 'BNG', 'BDS', 'BHL', 'CYL', 'CHG', 'DEB', 'EBY', 'EAC', 'EPP', 'FLP', 'GHL', 'GRH', 'GFD', 'HAI', 'HLN', 'HOL', 'HPK', 'LAN', 'LEY', 'LYS', 'LST', 'LTN', 'MAR', 'MLE', 'NEP', 'NAC', 'NHT', 'NHG', 'OXC', 'PER', 'QWY', 'RED', 'ROD', 'RUG', 'SBC', 'SNB', 'SRP', 'SWF', 'STP', 'SFD', 'THB', 'TCR', 'WAN', 'WAC', 'WRP', 'WCT', 'WFD'],
	D: ['ACT', 'ALE', 'BKG', 'BCT', 'BEC', 'BLF', 'BWR', 'BBB', 'CST', 'CHP', 'DGE', 'DGH', 'EBY', 'ECM', 'ECT', 'EHM', 'EPY', 'ERD', 'EPK', 'EMB', 'FBY', 'GRD', 'GUN', 'HMD', 'HST', 'HCH', 'OLY', 'KEW', 'MAN', 'MLE', 'MON', 'OLY', 'PGR', 'PLW', 'PUT', 'RCP', 'RMD', 'SSQ', 'SKN', 'SFS', 'SJP', 'STB', 'STG', 'TEM', 'THL', 'TGR', 'UPM', 'UPB', 'UPY', 'UPK', 'VIC', 'WBT', 'WHM', 'WKN', 'WMS', 'WCL', 'WDN', 'WMP'],
	H: ['ALD', 'ALE', 'BST', 'BAR', 'BKG', 'BLF', 'BWR', 'BBB', 'CST', 'EHM', 'ERD', 'EMB', 'ESQ', 'FAR', 'GRD', 'GPS', 'HMS', 'HST', 'KXX', 'LST', 'MAN', 'MLE', 'MON', 'MGT', 'PAD', 'PLW', 'SSQ', 'SKN', 'SJP', 'STG', 'TEM', 'THL', 'UPK', 'VIC', 'WHM', 'WMS', 'WCL'],
	J: ['BST', 'BER', 'BDS', 'CWR', 'CWF', 'CNT', 'CPK', 'DHL', 'FRD', 'GPK', 'KIL', 'KBY', 'LON', 'NEA', 'NGW', 'QBY', 'SWK', 'SJW', 'STA', 'SFD', 'SWC', 'WLO', 'WPK', 'WHM', 'WHD', 'WMS', 'WLG'],
	M: ['ALD', 'AME', 'BST', 'BAR', 'CLF', 'CWD', 'CLW', 'CRX', 'ETE', 'ESQ', 'FAR', 'FRD', 'GPS', 'HOH', 'HDN', 'ICK', 'KXX', 'LST', 'MPK', 'MGT', 'NHR', 'NWP', 'NWD', 'NWH', 'PIN', 'RLN', 'RKY', 'RUI', 'RUM', 'UXB', 'WAT', 'WPK', 'WHR'], 
	N: ['ANG', 'ARC', 'BAL', 'BNK', 'BPK', 'BOR', 'BTX', 'BUR', 'CTN', 'CHF', 'CHX', 'CPC', 'CPN', 'CPS', 'COL', 'CLW', 'EFY', 'EDG', 'ELE', 'EMB', 'EUS', 'FYC', 'GGR', 'GST', 'HMP', 'HND', 'HBT', 'HIG', 'KEN', 'KTN', 'KXX', 'LSQ', 'LON', 'MHE', 'MGT', 'MOR', 'MCR', 'OLD', 'OVL', 'SWM', 'STK', 'TBE', 'TBY', 'TCR', 'TOT', 'TPK', 'WST', 'WLO', 'WFY', 'WSP'], 
	P: ['ACT', 'ALP', 'AGR', 'ARL', 'BCT', 'BOS', 'BGR', 'CRD', 'CFS', 'COV', 'ECM', 'ECT', 'ETE', 'FPK', 'GRD', 'GPK', 'HMD', 'HTX', 'HTF', 'HRV', 'HRC', 'HDN', 'HOL', 'HRD', 'HNC', 'HNE', 'HNW', 'HPC', 'ICK', 'KXX', 'KNB', 'LSQ', 'MNR', 'NEL', 'NFD', 'OAK', 'OST', 'PRY', 'PIC', 'RLN', 'RUI', 'RUM', 'RSQ', 'SEL', 'SHR', 'SKN', 'SGT', 'SHL', 'STN', 'TGR', 'TPL', 'UXB', 'WGN'],
	V: ['BHR', 'BRX', 'EUS', 'FPK', 'GPK', 'HBY', 'KXX', 'OXC', 'PIM', 'SVS', 'STK', 'TTH', 'VUX', 'VIC', 'WAL', 'WST'],
	W: ['BNK', 'WLO']
};




var linesAtStation = {	
	"BST": ["B", "H", "J", "M"],
	"CHX": ["B", "N"],
	"ERB": ["B"],
	"ELE": ["B", "N"],
	"EMB": ["B", "D", "H", "N"],
	"HSD": ["B"],
	"HAW": ["B"],
	"KGN": ["B"],
	"KNT": ["B"],
	"KPK": ["B"],
	"LAM": ["B"],
	"MDV": ["B"],
	"MYB": ["B"],
	"NWM": ["B"],
	"OXC": ["B", "C", "V"],
	"PAD": ["B", "H"],
	"PIC": ["B", "P"],
	"QPK": ["B"],
	"RPK": ["B"],
	"SKT": ["B"],
	"SPK": ["B"],
	"WAR": ["B"],
	"WLO": ["B", "J", "N", "W"],
	"WEM": ["B"],
	"WJN": ["B"],
	"BNK": ["C", "N", "W"],
	"BDE": ["C"],
	"BNG": ["C"],
	"BDS": ["C", "J"],
	"BHL": ["C"],
	"CYL": ["C"],
	"CHG": ["C"],
	"DEB": ["C"],
	"EBY": ["C", "D"],
	"EAC": ["C"],
	"EPP": ["C"],
	"FLP": ["C"],
	"GHL": ["C"],
	"GRH": ["C"],
	"GFD": ["C"],
	"HAI": ["C"],
	"HLN": ["C"],
	"HOL": ["C", "P"],
	"HPK": ["C"],
	"LAN": ["C"],
	"LEY": ["C"],
	"LYS": ["C"],
	"LST": ["C", "H", "M"],
	"LTN": ["C"],
	"MAR": ["C"],
	"MLE": ["C", "D", "H"],
	"NEP": ["C"],
	"NAC": ["C"],
	"NHT": ["C"],
	"NHG": ["C"],
	"PER": ["C"],
	"QWY": ["C"],
	"RED": ["C"],
	"ROD": ["C"],
	"RUG": ["C"],
	"SBC": ["C"],
	"SNB": ["C"],
	"SRP": ["C"],
	"SWF": ["C"],
	"STP": ["C"],
	"SFD": ["C", "J"],
	"THB": ["C"],
	"TCR": ["C", "N"],
	"WAN": ["C"],
	"WAC": ["C"],
	"WRP": ["C"],
	"WCT": ["C"],
	"WFD": ["C"],
	"ACT": ["D", "P"],
	"ALE": ["D", "H"],
	"BKG": ["D", "H"],
	"BCT": ["D", "P"],
	"BEC": ["D"],
	"BLF": ["D", "H"],
	"BWR": ["D", "H"],
	"BBB": ["D", "H"],
	"CST": ["D", "H"],
	"CHP": ["D"],
	"DGE": ["D"],
	"DGH": ["D"],
	"ECM": ["D", "P"],
	"ECT": ["D", "P"],
	"EHM": ["D", "H"],
	"EPY": ["D"],
	"ERD": ["D", "H"],
	"EPK": ["D"],
	"FBY": ["D"],
	"GRD": ["D", "H", "P"],
	"GUN": ["D"],
	"HMD": ["D", "P"],
	"HST": ["D", "H"],
	"HCH": ["D"],
	"OLY": ["D"],
	"KEW": ["D"],
	"MAN": ["D", "H"],
	"MON": ["D", "H"],
	"PGR": ["D"],
	"PLW": ["D", "H"],
	"PUT": ["D"],
	"RCP": ["D"],
	"RMD": ["D"],
	"SSQ": ["D", "H"],
	"SKN": ["D", "H", "P"],
	"SFS": ["D"],
	"SJP": ["D", "H"],
	"STB": ["D"],
	"STG": ["D", "H"],
	"TEM": ["D", "H"],
	"THL": ["D", "H"],
	"TGR": ["D", "P"],
	"UPM": ["D"],
	"UPB": ["D"],
	"UPY": ["D"],
	"UPK": ["D", "H"],
	"VIC": ["D", "H", "V"],
	"WBT": ["D"],
	"WHM": ["D", "H", "J"],
	"WKN": ["D"],
	"WMS": ["D", "H", "J"],
	"WCL": ["D", "H"],
	"WDN": ["D"],
	"WMP": ["D"],
	"ALD": ["H", "M"],
	"BAR": ["H", "M"],
	"ESQ": ["H", "M"],
	"FAR": ["H", "M"],
	"GPS": ["H", "M"],
	"HMS": ["H"],
	"KXX": ["H", "M", "N", "P", "V"],
	"MGT": ["H", "M", "N"],
	"BER": ["J"],
	"CWR": ["J"],
	"CWF": ["J"],
	"CNT": ["J"],
	"CPK": ["J"],
	"DHL": ["J"],
	"FRD": ["J", "M"],
	"GPK": ["J", "P", "V"],
	"KIL": ["J"],
	"KBY": ["J"],
	"LON": ["J", "N"],
	"NEA": ["J"],
	"NGW": ["J"],
	"QBY": ["J"],
	"SWK": ["J"],
	"SJW": ["J"],
	"STA": ["J"],
	"SWC": ["J"],
	"WPK": ["J", "M"],
	"WHD": ["J"],
	"WLG": ["J"],
	"AME": ["M"],
	"CLF": ["M"],
	"CWD": ["M"],
	"CLW": ["M", "N"],
	"CRX": ["M"],
	"ETE": ["M", "P"],
	"HOH": ["M"],
	"HDN": ["M", "P"],
	"ICK": ["M", "P"],
	"MPK": ["M"],
	"NHR": ["M"],
	"NWP": ["M"],
	"NWD": ["M"],
	"NWH": ["M"],
	"PIN": ["M"],
	"RLN": ["M", "P"],
	"RKY": ["M"],
	"RUI": ["M", "P"],
	"RUM": ["M", "P"],
	"UXB": ["M", "P"],
	"WAT": ["M"],
	"WHR": ["M"],
	"ANG": ["N"],
	"ARC": ["N"],
	"BAL": ["N"],
	"BPK": ["N"],
	"BOR": ["N"],
	"BTX": ["N"],
	"BUR": ["N"],
	"CTN": ["N"],
	"CHF": ["N"],
	"CPC": ["N"],
	"CPN": ["N"],
	"CPS": ["N"],
	"COL": ["N"],
	"EFY": ["N"],
	"EDG": ["N"],
	"EUS": ["N", "V"],
	"FYC": ["N"],
	"GGR": ["N"],
	"GST": ["N"],
	"HMP": ["N"],
	"HND": ["N"],
	"HBT": ["N"],
	"HIG": ["N"],
	"KEN": ["N"],
	"KTN": ["N"],
	"LSQ": ["N", "P"],
	"MHE": ["N"],
	"MOR": ["N"],
	"MCR": ["N"],
	"OLD": ["N"],
	"OVL": ["N"],
	"SWM": ["N"],
	"STK": ["N", "V"],
	"TBE": ["N"],
	"TBY": ["N"],
	"TOT": ["N"],
	"TPK": ["N"],
	"WST": ["N", "V"],
	"WFY": ["N"],
	"WSP": ["N"],
	"ALP": ["P"],
	"AGR": ["P"],
	"ARL": ["P"],
	"BOS": ["P"],
	"BGR": ["P"],
	"CRD": ["P"],
	"CFS": ["P"],
	"COV": ["P"],
	"FPK": ["P", "V"],
	"HTX": ["P"],
	"HTF": ["P"],
	"HRV": ["P"],
	"HRC": ["P"],
	"HRD": ["P"],
	"HNC": ["P"],
	"HNE": ["P"],
	"HNW": ["P"],
	"HPC": ["P"],
	"KNB": ["P"],
	"MNR": ["P"],
	"NEL": ["P"],
	"NFD": ["P"],
	"OAK": ["P"],
	"OST": ["P"],
	"PRY": ["P"],
	"RSQ": ["P"],
	"SEL": ["P"],
	"SHR": ["P"],
	"SGT": ["P"],
	"SHL": ["P"],
	"STN": ["P"],
	"TPL": ["P"],
	"WGN": ["P"],
	"BHR": ["V"],
	"BRX": ["V"],
	"HBY": ["V"],
	"PIM": ["V"],
	"SVS": ["V"],
	"TTH": ["V"],
	"VUX": ["V"],
	"WAL": ["V"]
};

You only have 258 out of the 270 TFL stations on the Underground network here- you are missing all the DLR lines. I have made an updated gist of all TFL stations, and their codes, here - if that is any help yo anyone :)

Also it looks like some of your data is invalid JSON- the 1st and 3rd set. For the Underground stations, a better data structure would probably be an array of JSON objects. Here is a quick way to convert the above giant json object into an array:

let results = []; // This will store final array
Object.keys(stations).forEach((key)=>
    results.push({ tla: key, name: stations[key]})
);