Subtitle to Plain Dialogue Extractor
Subtitle to Plain Dialogue Extractor: Extracts text following recognized SRT/WebVTT cue timing lines, strips HTML-like tags, and decodes a fixed small set of named entities once.
About this subtitle to plain dialogue extractor
Extracts text following recognized SRT/WebVTT cue timing lines, strips HTML-like tags, and decodes a fixed small set of named entities once Applies Unicode-compliant text transformations and parsing directly in the browser tab without data leakage.
Text processing & transformation mechanics
Extracts dialogue text from recognized SRT/WebVTT cue blocks. It finds a timing line only within a block’s first two lines, then retains following nonempty text lines, removes HTML-like tags, decodes the eight named entities `amp`, `lt`, `gt`, `quot`, `apos`, `nbsp`, `lrm`, and `rlm` once, trims each line, and joins them with spaces.
Worked text manipulation example
Scenario: Extract dialogue while excluding a WebVTT NOTE block.
Sample input:
Processing: Exclude NOTE, remove the cue ID, settings, and voice tag, then decode & once.
Illustrative output:
Character encoding & string length boundaries
Line endings `CRLF`, `LF`, and `CR` are accepted. This is a constrained cue extractor, not a complete subtitle parser: malformed or unrecognized blocks are omitted; it does not decode arbitrary entities or preserve markup. Numeric dialogue and timing-like text after a recognized timing line are retained. Without an initial `WEBVTT` header, a block starting with NOTE/STYLE/REGION is not specially excluded.
Text formatting and transformations in Subtitle to Plain Dialogue Extractor preserve character integrity. Check edge cases such as multi-line inputs and special characters before downstream use.
In-memory text processing boundary
String operations and Unicode manipulations in Subtitle to Plain Dialogue Extractor execute entirely in local browser memory without transmitting input text.
Unicode Consortium & text formatting standards
Unicode Consortium standard annexes (UAX) and character encoding specifications:
- W3C WebVTT: The Web Video Text Tracks Format
- Implementation-specific cue dialogue extraction (not a full subtitle parser)
Subtitle to Plain Dialogue Extractor verification · Audit standards
How to use it
- Paste SRT or WebVTT text, such as a `WEBVTT` header followed by a blank line, a cue timing line, and dialogue.
- Click Run locally; WebVTT `NOTE`, `STYLE`, and `REGION` blocks are excluded when the input starts with `WEBVTT`.
- Read and copy the plain dialogue text. A cue ID and cue settings are not emitted because text begins after the recognized timing line.
Frequently asked questions
What does Subtitle to Text extract?+
It reads subtitle cue blocks, removes the `WEBVTT` header, cue IDs, and the first valid timing line, then removes each entire angle-bracket tag from the remaining payload and joins non-empty lines with spaces.
Can I try a concrete VTT example?+
Enter `WEBVTT`, then a blank line, then `cue-1`, `00:01.000 --> 00:02.000 align:start`, and `<v Alice>Hello & bye` on separate lines. Run locally returns `Hello & bye`: the ID and timing are removed, the entire `<v Alice>` tag is removed, and `&` is decoded.
Are numeric or timestamp-looking dialogue lines retained?+
Yes. After the first timing line, payload remains dialogue. For an SRT cue whose payload is `2026` followed by `Hello`, the result is `2026 Hello`; a timestamp-looking sentence in the payload is also retained.
Does it parse arbitrary HTML and all entities?+
No. It uses cue structure plus a simple angle-bracket removal. It decodes the named entities `amp`, `lt`, `gt`, `quot`, `apos`, `nbsp`, `lrm`, and `rlm`; unsupported markup or entities can remain. VTT `NOTE`, `STYLE`, and `REGION` blocks are skipped.