AI transcription & translation
Turn any audio or video into time-coded subtitles, in your target language, with one click.
AI subtitles + free toolkit
Generate accurate subtitles in any language — with AI.
SubEngine transcribes and translates your audio or video — in full context — into clean, time-coded subtitles, then gives you a full set of free, private tools to convert, edit, re-time and extract them. Start with 100 free credits.
6+
Subtitle formats
100%
Private & in-browser
100
Free credits on signup
Built for accurate, affordable subtitles
From the first transcript to the final export — and you only pay for what's actually spoken.
Context-aware translation
Subtitles are translated in full context — not line by line — so names, tone and meaning stay consistent and natural across the whole video.
Pay only for speech
SubEngine detects speech first, so silent stretches never cost a credit — and you see the estimate before you spend.
Lite or Pro, per language
Pick SubEngine Lite for speed and value, or Pro for the highest accuracy — choose the model per language.
Free, private toolkit
Convert formats, re-time, edit and extract subtitles entirely in your browser — no upload, no sign-up.
From media to subtitles in three steps
A fast, transparent workflow with the cost shown up front — no surprises.
1
Upload your media
Add any audio or video file. Even large files are handled right in your browser.
2
Generate in your language
We scan for speech, show exactly how many credits the job needs, then transcribe and translate on your go-ahead.
3
Edit & export
Preview against your video, fine-tune the timing, and export SRT or VTT — ready to ship.
A complete subtitle toolkit
Use the AI generator, or the free in-browser utilities — standalone or together.
Subtitle Generator
AI transcription & translation into clean, time-coded SRT.
Format Converter
Convert freely between SRT, VTT, ASS, SSA, SMI and SUB.
Subtitle Editor
Tweak lines and timing in a live, video-synced editor.
Subtitle Extractor
Pull out burned-in or embedded subtitle tracks from video.
Simple credit packages
Top up once, spend only on speech. Credits never expire — buy a pack that fits your workload.
Prices shown in USD ($). You still start with 100 free credits on signup.
Ready to subtitle your next video?
Create a free account and get 100 credits to start generating — plus a full set of free, private subtitle tools, no sign-up required to try them.
Get started free →