Barcelona head coach Ernesto Valverde described Tottenham striker as "extraordinary" but would not address transfer rumours linking the England captain with a switch to Camp Nou.
Kane signed a six-year contract in June before winning the Golden Boot at the World Cup, where he scored six goals in England's run to the semi-finals.
The striker has shown little interest in leaving the Premier League club but reports have suggested Barca see him as a possible long-term successor to Luis Suarez.
Kane will have a chance to impress Barca's board at close quarters on Tuesday when Tottenham visit in the Champions League, needing a win to progress to the knockout rounds.
But while Valverde is impressed with the development of the 25-year-old, he would give no clues as to whether Barca would be interested in a deal.
"He's a great, extraordinary forward on a global level," Valverde told a news conference. "He can shoot, he is good in the air and makes the difference in the box. You can't give him any space, even one metre. He is a difference-maker.
"I don't like talking about players from other teams, we try to have some discretion about them and worry about our own, but that doesn't mean we can't have respect for what he does."
With Barca assured of top spot in Group B, Valverde is widely expected to rest stars such as Lionel Messi, who gave a remarkable individual display in a 4-0 derby win at Espanyol on Saturday.
Valverde confirmed Luis Suarez, who returned from injury against Espanyol, will be left out but was unwilling to give further clues as to his team selection plans, with Inter needing to better Spurs' result when they face PSV to qualify.
"Sure there will be changes. Players need rest and we had a tough match last Saturday," he added. "They are going to bring their best players, not necessarily something that we can do. The players have some discomfort so I have to take that into account.
"After being without him [Messi] for several games I don't know if we'll have him out there for two games in three days. But Luis Suarez is definitely not going to play."
@clement_lenglet: "We're approaching this game with the idea of winning and giving a good game for the fans at the Camp Nou. It's a Champions League game and we have to enjoy it." #BarçaSpurs pic.twitter.com/Oiwl3muGmH— FC Barcelona (@FCBarcelona) December 10, 2018
Pressed on Messi's availability, Valverde added: "I will tell you in 24 hours when I announce the team.
"The important thing is the players who come out of the dressing room are motivated and ready to play. They're facing a team that has everything riding on the line.
"There's nothing to fear but it's not that different from the match at Wembley. Players will have to play their best to win tomorrow and I have no doubt about that."
Valverde suggested Jasper Cillessen could start in goal in place of Marc-Andre ter Stegen and indicated Arthur may also return from injury against Spurs.
21 de enero 2019
|Southgate hails ´tremendous talent´ Rashford|
|Long earns maiden PGA Tour win at Desert Classic|
|Flanagan resigns as Sharks head coach|
|Rams´ Robey-Coleman admits he committed penalty on controversial no-call|
|NFL admits they blew the call – Saints coach Payton|
|Terrible no-call, Goff shines – three takeaways from Rams´ win over Saints|
|Lonzo Ball to miss 4-6 weeks with ankle sprain|
|Patterson added to Australia Test squad|
|Zuerlein´s overtime kick sinks Saints and sends Rams to Super Bowl|
|It was a clear goal – Valverde dismisses Barca VAR controversy|
|Rashford can emulate Man United greats Ronaldo and Rooney – Solskjaer|
|Karmichael Hunt swaps Reds for Waratahs|
|Barcelona forward Dembele set for tests on sprained ankle|
20 de enero 2019
|Neymar insists Barcelona and Real Madrid links not ´concrete´|
|England trio Nowell, Slade and Cowan-Dickie sign fresh Exeter deals|
|Windies coach Pybus not distracted by detractors|
|Barcelona 3 Leganes 1: Messi and Suarez combine to spare Barca´s blushes|
|I´m sure Michael would be extremely proud - Vettel hails Mick Schumacher|
|Young plays down injury fears for England trio Launchbury, Shields and Hughes|
|Pochettino: Lucas Moura fit for Chelsea clash|
|Ranieri positive on Fulham survival chances despite ´unbelievable´ Spurs loss|
|United Arab Emirates v Kyrgyzstan: Zaccheroni confident in attack|
|South Korea lose Ki to hamstring injury|
|It doesn´t look great - Pochettino to wait on Alli assessment|
|Messi benched as Barcelona face Leganes|
|Dalglish texts me before matches - Van Dijk|
|Patrick Mahomes could sign NFL´s first $200m contract - reports|
|Iran 2 Oman 0: Jahanbakhsh and Dejagah secure last-eight spot|
|Helloooo u remember me? Nkoudou reminds Spurs fans he exists|
|Japan v Saudi Arabia: Pizzi believes Saudis can upset the odds|
|Repsol Honda´s Lorenzo to have surgery on fractured wrist|
|Fulham 1 Tottenham 2: Winks heads late winner after Alli injury|
|Leinster seal home quarter-final with win over Wasps|
|Vince, Curran star as Sixers trounce Heat to move second|
|Sharapova stunned by Barty as Kvitova takes Anisimova to school|
|Guardiola demands improvement after Man City win|
|Sexton has bat phone to referees - Jones|
|Alonso accepts Chelsea guilty of ´silly mistakes´ in Arsenal defeat|
|Guardiola woke us up - Sane reveals half-time rocket for Man City|
|A first step to something bigger - Tsitsipas eyeing glory after shocking Federer|
|Thailand 1 China 2: Gao Lin keeps dream alive for Lippi|
|Tsitsipas in dreamland after ousting Federer, birthday boy Tiafoe breaks new ground|
|Huddersfield Town 0 Manchester City 3: Danilo, Sterling and Sane on target for ton-up City|
|Allegri: Khedira will be like a new signing for Juventus|
|Manchester City reach 100 goals in 2018-19|
|Australia v Uzbekistan: Leckie´s return is ´like a new signing´, says Arnold|
|Jordan 1 Vietnam 1 (aet, 2-4 on penalties): Keeper Van Lam the shoot-out hero|
|Federer confirms French Open return after Melbourne exit|
|I accept his decision - Gattuso axes Chelsea-bound Higuain|
|The rapid rise of Federer-conqueror Tsitsipas|
|Gracious Federer hails ´better player´ Tsitsipas after Australian Open exit|
|Tsitsipas ´happiest man on earth´ after stunning Federer|
|Harden focused on wins, not personal feats after scoring 48 points|
|PSG midfielder Verratti suffers sprained ankle|
|Inspired Tsitsipas dethrones Federer|
|PSG´s Cavani considering career finale in Uruguay|
|Feisty Collins ready to make more noise after thrashing Kerber|
|I´ve got to work on my soccer skills! - Mavs´ Doncic didn´t know ejection rule|
|Lakers won´t rush LeBron & Rondo back despite Ball injury|
|A-League Review: Victory fightback in thriller with Wellington|
|Henry explains foul-mouthed confrontation with Strasbourg´s Lala|
|Nadal wary of ´dangerous´ Tiafoe|
|Emery ´not positive´ over Bellerin injury|
|Harden scores 48 points as Rockets rally past Lakers in OT|
|Pacquiao wants Mayweather rematch after beating Broner|
|Sharapova unimpressed with questions after Melbourne exit|
|Nadal outclasses Berdych en route to quarters|
|Collins trounces 2016 Aus Open champion Kerber|
|Sanchez: Man United thriving thanks to Solskjaer|
|Sharapova crashes out of Australian Open|