Reelbox: play Telegram videos without downloading them

Reelbox is a video player for the files in your own Telegram chats and channels. Videos stream in the browser as you watch, straight from Telegram with no server in between, so there is no file to download first. MKV, HEVC, several audio tracks and subtitles all play. It hosts no videos of its own. It needs JavaScript to talk to Telegram, so turn JavaScript on to sign in.