Odds to Probability Text Changer is a free Chrome extension developed by dannyhines5. It falls under the Browsers category and specifically the Add-ons & Tools subcategory. This extension aims to convert all American odds on a webpage to implied probability.

The extension scans the webpage for American odds, such as "+140" or "-350", and calculates the implied probability associated with these odds. It then displays the probability as a percentage. For example, if the odds are "+140", the extension will show "+%)".

The implied probability represents the percentage chance that a bet is expected to win, assuming the odds are "fair". Since sportsbooks charge a fee or "vig" for placing bets, the displayed probability may be slightly higher than the actual probability.