Example
Messy captions: 1 00:00:01,000 --> 00:00:02,000 [ALEX] Hello , <i>world</i>
Clean text: Hello, world
Subtitle Cleaner processes this example in the browser and lets you inspect the result before copying it.
Clean subtitle text, remove tags, normalize whitespace, and keep cue timing.
Clean subtitle text, remove tags, normalize whitespace, and keep cue timing.
Messy captions: 1 00:00:01,000 --> 00:00:02,000 [ALEX] Hello , <i>world</i>
Clean text: Hello, world
Subtitle Cleaner processes this example in the browser and lets you inspect the result before copying it.
Copied text, code, value, or file content
Subtitle Cleaner result with readable output and validation feedback
Clean subtitle text, remove tags, normalize whitespace, and keep cue timing.
This tool processes your input locally in your browser. Your text, code, file, or generated value is not uploaded to LumaTool servers.
Remove speaker labels, HTML tags, duplicated blank lines, and noisy caption artifacts from SRT or VTT.
Clean YouTube auto-caption text before translation, voice preview, or bilingual subtitle editing.
Normalize punctuation spacing while preserving subtitle timing when needed.
Yes. Subtitle Cleaner is available as a free LumaTool web tool.
No sign-in is required for the public tool pages.
No. This tool processes input locally in your browser.
Yes. The editor, buttons, and result areas are designed for mobile and desktop browsers.
Ready tools include copy actions, and file-oriented tools include download actions where useful.
Subtitle Cleaner is useful for focused video & subtitle tools tasks where you need a quick browser-based result without switching tools.
This tool processes your input locally in your browser. Your text, code, file, or generated value is not uploaded to LumaTool servers.
Yes, but review the result before applying it to production systems. LumaTool helps with utility work, validation, and formatting, but final decisions stay with you.
Convert SRT subtitle files to WebVTT locally in your browser.
Use Now VConvert WebVTT captions to SRT subtitle format locally.
Use Now SShift SRT and VTT subtitle timings forward or backward locally.
Use Now SCount subtitle blocks, words, characters, duration, reading speed, and longest lines.
Use Now YExtract video IDs from watch, youtu.be, shorts, embed, and live YouTube URLs.
Use NowAlso building video workflows? The YouTube subtitle extension is in development.