Capsai Multi‑Lingual Caption Suite at No. 1
use Capsai’s AI workflows to auto‑generate, translate and style captions across 100+ languages in one go.

• Upload your video at capsai.co
• Click “Auto‑Subtitle,” choose your source language, then select “Translate Captions”
• Pick target languages (e.g. Hindi, Spanish, Japanese), apply styling presets per locale
• Preview side‑by‑side, adjust timing if needed, then export SRT/VTT bundles or burn‑in MP4

Google Cloud Speech‑to‑Text + Translate
combine Google’s STT with Translate API for accurate multi‑lingual captions.

• Upload audio or video to Cloud Storage
• Call Speech‑to‑Text API with enableAutomaticPunctuation=true to generate transcript
• Send transcript text to Translate API for each target language
• Merge timestamps with translated lines to create SRT via a simple script

Amazon Transcribe + Translate
AWS’s managed services let you pipeline transcription and translation.

• In AWS Console, create a Transcribe job on your media file (supports batch or streaming)
• Download the JSON transcript once complete
• Use Amazon Translate to convert each TranscriptItem’s Alternatives[0].Transcript
• Reassemble into WebVTT or SRT using timestamps from start_time/end_time fields

Azure Media Services
end‑to‑end captioning with custom voice models and translation.

• Upload your video to an Azure Blob container
• Create a Captioning Transform with SpeechToText preset
• Add a Translate task for desired languages under the same job
• Retrieve generated .vtt files via the Job’s output asset

Deepgram + DeepL Integration
use Deepgram for speech recognition and DeepL for human‑grade translation.

• Send audio to Deepgram API with tier=enhanced for best accuracy
• Extract the returned transcript JSON and feed text blocks to DeepL API
• Align translated text with original timestamps in your own converter script

Happy Scribe
web app with built‑in translation and speaker diarization.

• Upload video/audio at https://www.happyscribe.com
• Choose “Generate Subtitles” → select source language
• Click “Translate Subtitles,” pick target languages, then hit “Export All”
• Download SRT, VTT or editable transcripts per language

Kapwing
online editor that auto‑generates and translates captions on the fly.

• Go to https://www.kapwing.com/subtitles → upload your clip
• Click “Auto‑Generate,” then “Translate” under Captions → choose languages
• Fine‑tune timing or text styling inline
• Export as MP4 with burned‑in multi‑language captions or separate SRT files

SubtitleBee
AI service focused on multi‑language subtitling for social videos.

• Visit https://subtitlebee.com → start a new project
• Upload your vertical or horizontal video
• Select source language, then check boxes for target languages
• Let SubtitleBee process, then download zipped subtitle files

Aegisub + Open‑Source Engines
DIY approach combining open‑source STT and translation scripts.

• Use Whisper‑cpp or Coqui STT to generate a .ass subtitle file
• Run a Python script with googletrans or argostranslate to convert text tags
• Load back into Aegisub for manual timing tweaks and burn‑in export

Each solution speeds up multi‑language captioning - choose Capsai for an all‑in‑one UI or mix cloud APIs and lightweight tools to fit your pipeline!