SRT を SUB に変換

Free online SRT to SUB converter. Fast, secure, no signup required.

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Accepted: SRT files · Max 100 MB per file

srt sub

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Need to convert SRT to SUB? MegaConvert makes it easy. Upload your SubRip Text (SRT) file and get a MicroDVD Subtitle (SUB) file in seconds — no software to install, no signup required. Whether you need this conversion for video editing / web streaming, our online converter handles it instantly. Free for files up to 25MB, with support for larger files up to 2GB.

How to Convert SRT to SUB Online

1
Upload your SRT file
Click the upload area or drag and drop your SRT file. Files up to 25MB are free. Larger files are supported with pay-per-use.
2
Choose SUB as output format
SUB is automatically selected on this page. You can adjust conversion settings if needed.
3
Click Convert
Hit the Convert button to start processing. Your file will be converted using our high-performance servers.
4
Download your SUB file
Once conversion is complete, click Download to save your new SUB file. Free files are available for 1 hour.

Why Convert SRT to SUB?

**Reduce file size** — Converting between formats can significantly reduce file size, making files easier to share via email or cloud storage.
**Software requirements** — Your software or platform may require SUB format specifically. Converting ensures full compatibility.

SRT vs SUB — Format Comparison

Feature	SRT	SUB
Full Name	SubRip Text	MicroDVD Subtitle
Developer	SubRip (community standard)	MicroDVD community
First Released	2000	1999
Category	Subtitle	Subtitle
Extension	.srt	.sub
MIME Type	text/srt	text/x-sub

Styling and positioning may be lost when converting to simpler formats like SRT.

About SRT Format

Most popular text-based subtitle format with simple timing and text markup.

Full name: SubRip Text

Developer: SubRip (community standard) (2000)

About SUB Format

Frame-based subtitle format using video frame numbers for timing.

Full name: MicroDVD Subtitle

Developer: MicroDVD community (1999)

よくある質問

Upload your SRT file to MegaConvert.io, select SUB as the output format, and click Convert. Your converted file will be ready to download in seconds. No software installation required.

Yes! Files up to 25MB can be converted for free, up to 3 times per day. For larger files, pay-per-use pricing starts at just $2 for files up to 100MB.

Absolutely. All uploaded files are encrypted in transit (HTTPS), scanned for viruses, and automatically deleted after conversion. We never share or access your files.

Free users can convert files up to 25MB. Pay-per-use supports files up to 2GB. Subscribers get up to 2GB with priority processing.

Most popular text-based subtitle format with simple timing and text markup. Developer: SubRip (community standard) (2000).

Frame-based subtitle format using video frame numbers for timing. Developer: MicroDVD community (1999).