What is a ROFL file?
A .ROFL file is a League of Legends Replay File created by the game League of Legends, developed by Riot Games. It contains spectator game data that allows players to watch a previous match. It does not contain actual video data. It stores instructions that tell the game engine how to recreate the match.
How to open ROFL files?
The primary way to open a .ROFL file is to use the League of Legends client. You must place the file in the correct replay directory and use the match history interface to play it. Because it relies on the game client to render the match, .ROFL files only work with the exact game patch version they were recorded on.
Best practices and troubleshooting
If your .ROFL file does not play, the game patch is likely too new. Old replays expire when League of Legends updates. To keep a permanent copy of a match, users must open the .ROFL file and record their screen to save a standard video file, like a .WEBM or .MP4.
Software and tools
Players use the League of Legends game client to view the 3D match. Community tools like ReplayBook help manage large collections of .ROFL files on your computer.
Summary
viewer.online/rofl can analyze .ROFL files to identify the exact format and creator software, inspect the file structure, extract readable text, and check whether an online preview is available. viewer.online/rofl is useful for identifying, inspecting, and understanding .ROFL files without installing software or dealing with compatibility problems.