SubFlow

Translate YouTube video titles and upload multilingual subtitles automatically

SubFlow helps YouTube creators reach a global audience by automatically translating video titles, descriptions and subtitles, and publishing them straight to your channel. ✦ Translate titles & descriptions into 31 languages (Spanish, Japanese, Korean, Hindi, Arabic, French, German, Portuguese, and more) ✦ Upload subtitle tracks based on YouTube's machine-translated captions — published as real tracks your viewers can switch on ✦ Works with videos in any language — the source language is detected automatically (no longer English-only) ✦ Safe to re-run — always translates from your original title and source track, and replaces old translations instead of duplicating them ✦ NEW: Delete mode — clean up translated subtitle tracks and localized titles you no longer want ✦ NEW: Cancel anytime, and resume — close the panel mid-run and progress picks right back up when you reopen it ✦ Dark mode + English & Chinese (简体中文) interface ✦ Multiple channels and Brand Accounts supported ✦ One-click workflow — paste a URL, hit Start, done ✦ Secure Google OAuth via PKCE — no passwords, tokens never leave your browser Requirements: - To translate subtitles, your video needs a caption track in its original language (any language works) - Title & description translation works on any video, no captions needed Free: 3 runs per day, each covering all 31 languages of one video. No signup required.