ttdl — browser-native TikTok downloader

A thin browser-harness-js heredoc, exactly like gsearch/xsearch/ytdl. There is no Bun program, no vendored signer, no HTTP client impersonation. Every hard thing TikTok does to play a video — the signed CDN URL, the adaptive quality ramp, the edit list — the page already does for playback. ttdl just records the result. The capture is the clean, unwatermarked playback stream: TikTok's in-app/Download button serves a separately rendered watermarked file, while recording MediaSource gets exactly what the player shows the viewer.

ttdl "https://www.tiktok.com/@user/video/7642721752497310989"   # best → ~/Downloads
ttdl "https://www.tiktok.com/@user/video/7642721752497310989" -q audio   # audio only (.m4a)
ttdl "https://www.tiktok.com/@user/video/7642721752497310989" --info      # title / author / duration / resolution
ttdl "https://vm.tiktok.com/ZMxxxxx/"                            # short link (browser resolves the redirect)
ttdl 7642721752497310989                                         # bare numeric ID
ttdl "https://www.tiktok.com/@user/video/..." -o Name -d ~/Videos