Free Online Subtitle Tools for SRT and VTT
Clean, edit, sync, merge and convert SRT and VTT subtitles in your browser. Use free local tools without signing in, then download your result as SRT, VTT or TXT.
1 00:00:01,000 --> 00:00:04,200 The coast reminds us to slow down.After
1 00:00:01,500 --> 00:00:04,700 The coast reminds us to slow down.
Keep your text. Adjust the timing. Export a new file.
Choose a Subtitle Tool
Start with the task you want to complete.
Extract Subtitles from Video
Find embedded subtitle tracks locally in your browser. Extract text tracks as SRT or download image subtitle tracks. No video uploads, speech recognition or burned-in caption OCR.
Free local processing ↗SRT Cleaner
Clean SRT and VTT files locally in your browser. Fix numbering, tidy spaces, optionally remove formatting tags and export without watermarks.
Free local processing ↗Bilingual Subtitle Merger
Combine two SRT or VTT files into bilingual subtitles. Choose language order, preview aligned lines and preserve unmatched text locally.
Free local processing ↗Subtitle Sync
Shift all or selected subtitle lines forward or backward. Change start or end times, preview changes and export SRT or VTT.
Free local processing ↗Subtitle editor
Start blank or import SRT / VTT. Add, insert, split, merge and delete cues alongside a local video. Work stays in your browser, with undo and free downloads.
Free local processing ↗SRT to VTT
Convert SRT files to WebVTT locally. Add the WEBVTT header and correct timestamp separators for web video.
Free local processing ↗VTT to SRT
Convert VTT to SRT for free, keeping text and timestamps. Review warnings about unsupported regions, positioning and styles.
Free local processing ↗SRT to TXT
Convert SRT or VTT subtitles to TXT. Remove numbering and timestamps, or keep timestamp labels for notes and transcripts.
Free local processing ↗How to Edit and Convert Subtitles Online
- Choose a tool and import an SRT or VTT file, or start with blank subtitles in the editor.
- Adjust text, timing, cleaning rules or language order. Review the preview and any warnings.
- Download a new SRT, VTT or TXT file. Your original file remains unchanged.
See Subtitle Changes Before You Download
Compare the original and processed text in the cleaner, or preview timestamp changes before exporting. For example, a +0.5 second timing offset moves 00:00:01,000 to 00:00:01,500 without rewriting your dialogue.
See subtitle cleaning examples →Supported Files and Export Formats
| Task | Input | Output and limits |
|---|---|---|
| Edit, clean, sync and merge | SRT or VTT | Up to 5 MiB per subtitle file. Export SRT, VTT or TXT. |
| Convert subtitles | SRT or VTT | WebVTT for web video, SRT for players, or UTF-8 TXT for transcripts. TXT is an export format. |
| Extract embedded subtitles | Local MKV, MP4 and other supported containers | Up to 512 MiB per video; support depends on subtitle codecs. Text tracks can become SRT; image tracks are downloaded without OCR. |
Process Subtitle Files Locally in Your Browser
Free subtitle tools run on your device. Selected local videos are not uploaded. Already have subtitles inside a video? Extract existing subtitle tracks locally. Speech-to-text, burned-in caption OCR and burning captions into video are not supported.
Format conversion can lose styling or positioning that the output format cannot represent. Review warnings and keep a copy of your source file.
Subtitle Guides
Learn how to align two language tracks, correct subtitle delays and choose the right file format.
Read the subtitle guides →Frequently Asked Questions
Are my files uploaded?
Free tools process subtitle files and selected videos locally in your browser. Translation is coming soon and will require confirmation before sending text.
Can I start without a subtitle file?
Create blank subtitles in the editor and type cues alongside a local video, or extract existing embedded subtitle tracks. Speech recognition and burned-in caption OCR are not supported.
Do I need an account?
No sign-in or credits are required for the free local tools. Download your edited subtitles without a watermark.
Is my work saved when I leave?
Export your work or explicitly save a local snapshot. Snapshots stay in the current browser, do not sync across devices and are removed when browser data is cleared.