SubtitleFlow is an AI subtitle translator and transcription tool that translates SRT/VTT into 100+ languages while keeping every timestamp in sync.
Trusted by 100,000+ content creators
Context-aware AI reads whole sentences for natural wording — and never shifts a timestamp, in any language.
MP4/MOV, MP3/WAV, SRT/VTT — all in one tool.
Frame-accurate timing, preserved across 100+ languages.
Audio is processed in your browser — files never leave your device.
Original above translation, or translation-only — export-ready.
AI translates each line in the context of the cues around it — so meaning and tone stay natural even when a sentence is split across several subtitles, and every timestamp stays exactly in place.
Translate subtitlesReview source and translation side by side, scrub the waveform to hear each cue, and refine fast with find-and-replace, a glossary, and bulk edits. What you see is exactly what you export.
Open the editorDrop MP4/MOV/WebM video, MP3/WAV audio, or SRT/VTT subtitles. Video audio is extracted right in your browser, then turned into clean, perfectly timed captions.
Transcribe a fileStack the original above the translation for language learners and global audiences, then export SRT/VTT ready for YouTube, Premiere Pro, and DaVinci Resolve.
Start a project
Elena Morales
YouTube editor, 38k subs
“I usually get a messy VTT from the client. Here I upload it, pick Japanese, and the timings stay put—no more nudging every cue in Premiere. Last week I shipped a 22‑minute tech review in one evening instead of two.”
James Park
Indie podcast, weekly drops
“I only needed a clean transcript from a 47‑minute WAV for show notes—turned off translation and got timed lines I could skim. The file sat on ‘transcribing’ for a bit, but when it landed I barely touched the text.”
Marie Dubois
Film student, short documentaries
“Bilingual SRT for my festival submission was the win: French interview on top, English below, same timecodes. I still rewrote a few lines for tone, but the structure was already right—huge for a two‑person team.”
Tom Fletcher
Corporate L&D videos
“We work in SRT only—upload, translate to Simplified Chinese, then I spot‑check in the table view. Export naming with the original filename saved me from sending the wrong build to the LMS again.”
Go from source files to publish-ready subtitles in three steps.
Drop an MP4/MOV/WebM video, an MP3/WAV audio file, or an existing SRT/VTT subtitle file. Video audio is extracted in your browser — nothing heavy is sent to the server.
AI transcribes speech into timed cues, then translates segment by segment. Edit both source and translation line by line in the built-in editor.
Export as SRT or VTT and upload to your platform or video editor.
Free to try · No credit card required
SubtitleFlow is an AI subtitle translator and transcription tool. Upload an SRT or VTT file to translate it into 100+ languages, or upload audio/video to transcribe it into timed captions — review every line in the built-in editor, then export a clean subtitle file. It runs in your browser and is free to start.
Yes — you can start for free with no account. The free tier transcribes and translates, with a preview of longer files so you can check quality before upgrading. Paid plans add credits for longer videos and full exports.
SubtitleFlow translates and transcribes across 100+ languages. It reads SRT and VTT subtitles, MP3/WAV/M4A audio, and MP4/MOV/WebM video, and exports SRT, VTT, TXT, PDF, and DOCX.
No. SubtitleFlow translates only the text inside each cue and never reflows your timestamps, so the exported file stays perfectly in sync — even when one sentence is split across several cues.
Yes. Export bilingual subtitles with the original stacked above the translation — popular for language learning and global audiences — or export translation-only. Both keep the original timing.
Google Translate is a general text translator; SubtitleFlow is built for subtitles. It translates each line in the context of the surrounding cues so meaning stays natural, preserves SRT/VTT timing, and gives you a line-by-line editor — none of which a generic translator does.