CSV to SRT Converter
Local-first
Convert subtitle rows from CSV into SRT blocks with start time, end time, and text.
What is CSV to SRT?
Convert subtitle rows from CSV into SRT blocks with start time, end time, and text.
How to use it
- Paste the CSV, SRT content you want to process.
- Adjust quality, size, or output options when available.
- Run the tool to convert CSV to SRT and preview the result on the page.
- Copy the output or download the generated file when it looks right.
Best use cases
- Clean developer data during debugging, API work, and documentation.
- Clean content before saving configs, sharing snippets, or importing tables.
- Use it when privacy matters and the input should stay inside the browser.
Official standards and scope
RFC 4180 documents common CSV conventions and Matroska documents the widely used SRT subtitle structure. This page uses the same lightweight line-by-line CSV/TSV parser as the other converters, then looks for case-insensitive start/start_time/begin, end/end_time/stop, and text/subtitle/caption/content headers. Time values may omit hours, may use comma or dot, and may contain one to three fractional digits; minutes and seconds above 59 are rejected and output is normalized to HH:MM:SS,mmm. Literal backslash-n sequences in subtitle text become line breaks. Quoted multiline CSV fields are not supported, cue end is not checked to be later than cue start, and overlap, ordering, encoding, style, position, and playback are not validated. Blank subtitle rows are removed after numbering, which can leave sequence-number gaps. Review the generated cues in the target player before publishing.
- RFC 4180: Common Format and MIME Type for CSV Files - RFC Editor
- Matroska Technical Documentation: SRT subtitles - Matroska project
Sources checked July 27, 2026. Standards, dependencies, and platform rules can change; review the original sources again before formal integration or compliance decisions.
Notes
- Browser support for CSV, SRT can affect preview and export behavior.
- Invalid input will show an error when possible, but the tool will not guess missing fields.
- Preview the result before using it in production, publishing, or submission workflows.
FAQ
What columns are required?
Use start, end, and text columns. Header names are matched case-insensitively.
Is CSV to SRT free to use?
Yes. You can use it directly in the browser without creating an account.
Does CSV to SRT support batch processing?
Text tools usually process one pasted input at a time, so split large jobs into smaller inputs.
Are files or content uploaded?
CSV to SRT runs in your browser, so your input or files are not uploaded to DataHub servers.
Can I use CSV to SRT on mobile?
Yes, but desktop browsers are better for large files, batch conversion, or long text input.
Why can conversion or validation fail?
Common causes include invalid syntax, missing required fields, or invisible characters copied with the input.
Can I use the result commercially?
The tool only processes your own input. Commercial use depends on the rights of the original file or data.