FragMend
About this game
Steam's Game Recording feature saves your gameplay as fragmented MPEG-DASH streams - dozens of tiny .m4s chunks split across folders, with no easy way to get a normal video out. FragMend fixes that.
Point it at your recordings and it automatically:
Auto-detects your Steam install, account, and the real recording folder (even on another drive).
Rebuilds real sessions
Groups the scattered fragments back into one video per play session, per game, using Steam's own timeline data.
Exports clean MP4s
Lossless by default (based on original recording quality set in Steam), with an optional H.264 re-encode for maximum compatibility or H.265 for saving disk space without compromising quality.
Names them sensibly
Output is organized by game and date, ready to edit, upload, or archive.
Everything runs locally.
Your recordings never leave your PC — no uploads, no accounts, no cloud. ffmpeg is bundled, so there's nothing else to install.
Just launch FragMend, let it scan, pick the sessions you want, and Convert.
FragMend turns Steam Game Recording captures into ordinary MP4 files, one clean video per play session, per game. It finds the fragments Steam scatters across folders, groups them back into real sessions, and remuxes each into a single MP4. Fast, customizable, fully local.