Never miss the moment.

A free extension for Chrome, Firefox, and Edge.

ArenaSwap watches every live game across 30+ sports leagues and automatically switches your browser tab to the most exciting one. Think NFL RedZone, but for every sport, every night, on whatever streaming service you already pay for.

How it works

1. Open your streams. Pull up your games in separate tabs. ESPN+, Peacock, Paramount+, YouTube TV, Hulu, or any other browser-based stream works.
2. Assign each tab once. Open the ArenaSwap popup, find each live game in the list, and connect it to its tab with a dropdown.
3. Walk away. ArenaSwap scores every live game and switches you to the best one, checking as often as every 6 seconds when things get tense. The tab it picks is unmuted and the rest go quiet, so you hear the right broadcast.

The PowerScore

Every live game gets a score out of 100, built from five signals.

• Closeness: how tight the score is, building as the game goes on.
• Late-game pressure: tension that rises through the final period of a close game, with a boost for a tie headed to overtime.
• Momentum: recent scoring runs, which spike and then fade.
• Lead changes: back-and-forth chaos.
• Comeback factor: teams climbing out of a hole.

The signals stack and the total is capped at 100, so a genuinely exciting game climbs into the 80s and 90s while a blowout stays low. A frozen clock takes a penalty (halftime, timeouts, stoppages), which is what keeps you out of commercial breaks. Every card in the popup shows its score, and opening a game gives you the full breakdown: each signal live, the score over time, and what every component contributed.

Six sports, 30+ leagues

Basketball, football, hockey, baseball, softball and soccer, from the NBA and the NFL to La Liga and the World Cup. Toggle any league off, and star your teams so their games score higher.

Tuned to you

Sensitivity sets how big a scoring gap has to be before ArenaSwap moves. A cooldown keeps you from being tab-flipped mid-possession, and a switch delay covers a stream running behind the live data. Boost a game to hold it on screen, or pin one and it stays put. When everything on is a blowout, ArenaSwap can fall back to a standby tab: a pregame show, a highlights feed, whatever you keep in the background.

Private by default

No account, no login, no subscription. No tracking, no analytics, no ads. Live scores come from ESPN's public API, and everything else runs in your browser. The full source, including the PowerScore package, is on GitHub.