> Iulat ang Bug / Feature Request

Libreng Subtitle Converter

> I-convert sa pagitan ng SRT, VTT, SSA / ASS, SBV, TXT, at JSON subtitle format kaagad. 100% client-side - ang iyong mga file ay hindi kailanman umalis sa iyong browser.

> I-drop ang iyong subtitle file dito o mag-click upang mag-browse

Ang mga ito ay: CSS, HTML, JS, JSML, JSML, JSML, JSML, JSML, JSML, JSML, JSML, JSML, JSML, JSML, JSML.

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> I-convert ang Output 

          

        

      


      
      

        
Tungkol sa Subtitle Formats

        

          

            

              
Ang

              
> Ang pinaka-malawak na ginagamit na format ng subtitle. Kasama sa halos lahat ng mga manlalaro ng media at video platform. Gumagamit ng comma-hiwalay na milliseconds (HH: MM: SS, mmm).

            

          

          

            

              
Ang Web (Hapones: ウェブ, Hepburn: Webu) ay isang seryeng manga.

              
> Web Video Text Tracks format. dinisenyo para sa HTML5 video at suportado ng lahat ng mga modernong browser. Gumagamit dot-hiwalay milliseconds (HH: MM: SS.mmm).

            

          

          

            

              
> ASS / SSA (SubStation Alpha)

              
> Suporta sa mayaman styling, pag-upo, karaoke epekto, at advanced na tipograpiya. Popular sa anime fansubs at kumplikadong subtitle produksyon.

            

          

          

            

              
YouTube (sa wikang Hapones).

              
> SubViewer format na ginagamit natively sa pamamagitan ng YouTube. Simple timestamp format ideal para sa video platform uploads at pangunahing captioning.

            

          

        


        
> Paano mag-convert ng mga subtitle

        

          

            

              
1

              
> I-upload o I-paste

              
> I-drop ang iyong subtitle file o i-paste ang nilalaman nito nang direkta sa editor.

            

          

          

            

              
2

              
> Pumili ng Output Format

              
Ang input format ay awtomatikong natuklasan. Piliin ang iyong nais na output format mula sa dropdown.

            

          

          

            

              
3

              
> I-convert & I-download

              
> I-click ang I-convert upang makita ang preview, pagkatapos ay i-download ang file o kopyahin sa clipboard.

            

          

        

      

    

  







    

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Mga Madalas Itanong


        

        

            
            

                

                
subtitle conversion runs in your browser: paste a URL, upload a file, or record from your mic. STT.ai picks the AI model and returns the transcript in under 5 minutes. Export as TXT, SRT, VTT, DOCX, JSON, or PDF.

            

            
            

                

                
Yes — every visitor gets 600 free minutes/month on STT.ai, usable for subtitle conversion the same as any other workflow. Paid plans starting at $5/month unlock longer files, private transcripts, and priority queueing.

            

            
            

                

                
subtitle conversion runs on the same AI models as the rest of STT.ai — our best models reach 95-97% accuracy on clean speech (3-5% Word Error Rate on benchmarks). Switch models on the fly if the first pass is below your target.

            

            
            

                

                
subtitle conversion can run on any of STT.ai's 10+ models — STT.ai Enhanced (most accurate), Whisper Large V3 (99 languages), NVIDIA Canary (#1 WER on supported langs), Whisper Turbo (fast), Moonshine (lightweight), and more.

            

            
            

                

                
Yes. Every transcript exports as SRT or VTT — works with YouTube, Vimeo, TikTok, VLC, and every major video player. The burn-subtitles tool overlays them onto video as hardsubs.

            

            
            

                

                
Yes. Speaker diarization automatically labels each voice (Speaker 1, Speaker 2, ...) and you can rename them in the built-in editor. Works across all models and languages.

            

            
            

                

                
Most subtitle conversion jobs finish in under 5 minutes. A 1-hour audio file typically completes in 2-3 minutes with our fastest models. Speed depends on chosen model and current GPU load.

            

            
            

                

                
subtitle conversion accepts 20+ formats — MP3, WAV, M4A, FLAC, OGG, MP4, MKV, MOV, WebM, AVI, and more. Output to TXT, SRT, VTT, DOCX, JSON, or PDF.

            

            
            

                

                
Yes. Audio files submitted to subtitle conversion are processed and deleted by default. Pro plans add client-side encryption — even if STT.ai's database is breached, your transcripts are unreadable without your key. Data is never used for model training without explicit opt-in.

            

            
            

                

                
Yes. STT.ai offers a REST API with Python and Node.js SDKs, plus an MCP server for Claude and Cursor — all usable for subtitle conversion workflows. Free API tier includes 100 minutes/month.

            

            
            

                

                
Yes. Every transcript opens in the built-in editor where you can correct words, rename speakers, adjust timestamps, and add notes. All changes save automatically.

            

            
            

                

                
Every transcript gets a unique shareable URL. Export to DOCX or PDF for email. Pro plans add password-protected and permanent links — useful for client work.

            

            
            

                

                
STT.ai handles 1,300+ platforms including YouTube, Vimeo, TikTok, SoundCloud, Zoom, Google Meet, podcast hosts, and more. URL transcription works with publicly-available content only — DRM-protected sources can't be transcribed.