SRT vs SUB — Comparison & Free Converter
Fast, instant SRT (SUBRIP) to SUB (MICRODVD) conversion. No signup required. Just drop your .srt file and get .sub in seconds.
Batch Settings
Para criadores de conteúdo, estudantes ou quem lida com legendas no dia a dia, a conversão entre formatos é algo comum. O SRT, com sua simplicidade e base em texto, é um padrão amplamente utilizado. Já o formato SUB, embora menos comum hoje em dia, ainda aparece em acervos mais antigos ou em certas plataformas. Entender como transitar de um para outro, mantendo a sincronia e a integridade do conteúdo, é crucial para garantir que sua mensagem chegue clara e sem interrupções. Nossa ferramenta foi pensada para descomplicar esse processo, transformando seus arquivos SRT em SUB de forma rápida e eficiente, sem que você precise se preocupar com a compatibilidade ou a perda de dados. Seja para legendar um vídeo pessoal ou um projeto mais complexo, a facilidade está a um clique.
- Conteúdo para redes sociais (TikTok, Instagram)
- Documentários independentes
- Aulas EAD e cursos online
No Brasil e em Portugal, a preferência por SRT é quase unânime para novos conteúdos. A conversão para SUB é geralmente necessária para compatibilidade com players de mídia mais antigos ou arquivos de vídeo legados.
About SRT (SUBRIP) to SUB (MICRODVD) Conversion
SRT or SUB — which format should you use? The answer depends on your needs. Here's a quick breakdown.
SRT (SubRip) is the simplest subtitle format — plain text with timestamps. It has universal platform support. SUB is a widely used file format. It has common platform support.
So when should you convert SRT to SUB? This conversion is ideal when you When you need a SUB file. This conversion helps you convert between formats quickly.
Converting SRT to SUB maintains high quality with CocoConvert's optimised encoder settings.
If you've decided SUB is the right choice, CocoConvert makes the conversion effortless. Upload your .srt file, pick SUB, and click Convert — done in seconds. The converter runs on secure servers in Germany, powered by FFmpeg, Sharp, and qpdf. Files are encrypted via TLS and erased within 24 hours.
Free tier: 5 files/hour, 250 MB each. Pro: 100 files/hour, 5 GB each. Works in every modern browser on desktop and mobile.
How to Convert SRT (SUBRIP) to SUB (MICRODVD)
- 1
Choose your SRT file
Upload your .srt file using drag-and-drop or the file browser. Batch mode lets you add multiple files.
- 2
Set format to SUB
Select .sub from the output options. The converter applies optimal quality settings automatically.
- 3
Run the conversion
Click Convert. Server-side processing means your device stays fast — even for large subtitle / caption files.
- 4
Get your SUB file
Download your converted file instantly. Batch downloads are available as a zip archive.
What Happens When You Convert SRT (SUBRIP) to SUB (MICRODVD)
Your SRT file is decoded and re-encoded as SUB.
Your SRT file is uploaded and validated
The file is decoded (parsed into its raw data)
The data is re-encoded in SUB format
The converted file is ready for download
Format Comparison
SRT (SubRip)
.srt file
| Extension | .srt |
| MIME Type | application/x-subrip |
| Category | Subtitle / Caption |
SUB (MicroDVD)
.sub file
| Extension | .sub |
| MIME Type | text/x-sub |
| Category | Subtitle / Caption |
Should You Convert SRT (SUBRIP) to SUB (MICRODVD)?
When to Convert
- ✓When you need a SUB file
Frequently Asked Questions
Should I use SRT or SUB?
It depends on your goal. SRT preserves full quality. SUB preserves full quality. Choose based on whether file size or quality matters more for your use case.
Is SUB higher quality than SRT?
Not necessarily. Converting SRT to SUB maintains high quality with CocoConvert's optimised encoder settings. Quality depends on the compression type and settings, not just the format name.
Can I convert SRT to SUB on Mac and Windows?
Yes. CocoConvert is a web-based tool that works in all modern browsers — Chrome, Safari, Firefox, Edge — on any operating system including macOS, Windows, Linux, iOS, and Android.
Is CocoConvert free for SRT to SUB?
Yes. Free users get 5 conversions per hour (250 MB each). Pro subscribers unlock 100 files per hour, 5 GB per file, and priority processing.
What tools does CocoConvert use for SRT to SUB?
CocoConvert uses FFmpeg for audio/video, Sharp for images, and qpdf for documents — the same open-source libraries used by Netflix, YouTube, and major enterprise platforms.