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STL to TXT Subtitle Converter

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100% local processing in your browser. No upload. No waiting.

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STL
// Spruce Subtitle File
// Format: Start Time, End Time, Subtitle Text
 
00:00:01:00 , 00:00:04:00 , Hello, world!
00:00:04:15 , 00:00:08:00 , This is a subtitle file.
00:00:08:15 , 00:00:12:00 , Converted locally!
TXT
Hello, world!
This is a subtitle file.
Converted locally!

Drag & drop your STL file here

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Supports .stl files up to 50 MB

100% LocalNo UploadSecureInstant

How It Works

1

Upload STL File

Drag & drop or select your .stl file

2

Convert Instantly

We process it locally in your browser

3

Download TXT

Get your .txt file immediately

Why Choose AllSubConverter?

Your Privacy Matters

Everything runs in your browser. Your files are never uploaded.

Lightning Fast

Optimized processing engine converts files in seconds.

Free & Local

Each file can be up to 50 MB. Batches can contain up to 200 files or 1 GB total.

Works Everywhere

Works on Windows, Mac, Linux, iOS, Android - any modern browser.

Free Online STL to TXT Converter

Our STL to TXT converter reads Spruce Subtitle input and produces Plain Text output entirely in your browser. All timing and styling are stripped so you are left with a clean transcript of the spoken text. The conversion runs client-side, so your subtitle files are never uploaded to a server.

Input Format

STL

STL (Spruce Subtitle) is a text-based subtitle format used in DVD authoring and some broadcast workflows. Each entry uses comma-separated start and end timecodes followed by the subtitle text, with the pipe character (|) denoting line breaks. This text STL variant is distinct from the binary EBU STL broadcast format.

Output Format

TXT

TXT (Plain Text) output strips away all timing, sequence numbers, and formatting, leaving only the spoken dialogue as a clean transcript. This is useful for extracting scripts, building searchable transcripts, feeding text into translation or AI tools, or repurposing subtitle content as plain documents.

Features

Extracts only the dialogue text, discarding timestamps and sequence numbers.
Strips styling tags and markup so the output is pure plain text.
Joins cue text with single newlines for a clean transcript.
Produces UTF-8 text ready for editors, search, and further processing.

Why Convert?

TXT strips all timing and formatting, leaving a clean transcript of just the spoken text.
A plain transcript is easy to search, index, quote, and feed into translation or AI tools.
TXT is useful for building scripts, articles, or documentation from existing subtitles.
Removing timestamps makes the text readable as ordinary prose without subtitle clutter.

Format Differences

STL and TXT use different internal structures; the converter normalizes the source cues into the target layout.
STL uses SMPTE frame timecodes HH:MM:SS:FF; TXT has no timestamp structure.
STL may carry styling or markup; TXT carries plain text only, so unsupported formatting is removed.

Common Use Cases

Transcript Extraction

Pull a clean plain-text transcript from subtitles for notes, scripts, or documentation.

Search & Indexing

Index subtitle content as searchable text without timing noise.

AI & Translation Input

Feed clean text into translation tools, summarizers, or other AI workflows.

Related Formats

Frequently Asked Questions

It reads a Spruce Subtitle file, parses each cue, removes timing and common inline formatting, and writes the cue text to a .txt file.

Absolutely. Every conversion runs client-side in your browser. No subtitle data, file contents, or metadata is ever transmitted to a server.

Yes. STL timing, formatting, and markup are removed. The output preserves the parsed cue text without subtitle timing.

Yes, completely free with no sign-up, no watermarks, and files up to 50 MB each. All processing happens in your browser, so your files are never uploaded to a server.

Timestamps are removed because TXT has no timestamp structure.

Yes. The converter is fully responsive and works in any modern mobile browser on iOS and Android.

Ready to convert your subtitles?

Drop your STL file here and convert to TXT instantly.