MorphFlux
Free · No signup · Runs in browser

Free TXT to SRT Converter

Convert plain text transcripts to SRT subtitle format — add timing structure, no upload needed.

Drop files here — any supported format

or click to browse — unsupported types are dimmed in the file picker · local processing

Max file size: images / data / documents 50 MB · audio & video 200 MB · subtitles 10 MB. This tool: up to 50 MB per file.

Why use MorphFlux?

TXT to SRT conversion runs entirely in your browser — converts timestamped text to proper subtitle format.

Runs locally in your browser

Your TXT files are processed entirely on your device. Nothing is uploaded to any server.

Detects timestamp patterns

Common timestamp formats in your text file are automatically detected and converted to standard SRT timestamp format.

Instant conversion

TXT to SRT conversion is nearly instant for even large transcript files.

Free with no signup required

Convert as many TXT files to SRT as you need, completely free. No account required.

When would you need this?

Common scenarios where converting a text file to SRT subtitle format is needed.

1

Converting a timestamped transcript text file to SRT for adding subtitles to a video

2

Transforming a plain text script with time markers into proper SRT subtitle format

3

Converting exported transcripts from transcription tools into SRT for video use

About TXT and SRT

Understanding how plain text transcripts can be converted to SRT subtitle files.

TXT

What is TXT?

TXT (Plain Text) files may contain transcripts or text with basic timestamp markers. Converting to SRT adds proper subtitle structure with standardized timestamp format.

SRT

What is SRT?

SRT (SubRip Text) is the most universally compatible subtitle format, supported by virtually all media players and video editing software. SRT files use standardized timestamp format and numbered subtitle entries.

Frequently Asked Questions

Everything you need to know about converting TXT to SRT online.

How do I convert TXT to SRT?

Upload your TXT file using the converter above. The converter detects timestamp patterns and converts to SRT format instantly.

What timestamp formats are supported?

The converter detects common timestamp patterns like HH:MM:SS, HH:MM:SS.mmm, and basic time markers in your text file.

What if my TXT file has no timestamps?

If no timestamps are detected, the converter will create basic SRT entries with placeholder timing. You will need to adjust the timestamps manually.

Is my file uploaded to a server?

No. All processing happens locally in your browser. Your files never leave your device.

Is there a file size limit?

Files up to 10MB are supported.

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