---
name: "srt-deduplicate"
section: "1"
platform: "linux"
package: "python3-srt"
version: "3.5.3-1"
release: "Debian 13 (Trixie)"
platforms: ["linux"]
url: "https://new.carta.tech/srt-deduplicate"
---

# srt-deduplicate(1)

SRT subtitle processing tool

## NAME

srt-deduplicate - SRT subtitle processing tool

## DESCRIPTION

usage: srt deduplicate \[-h\] \[--input FILE\] \[--output FILE\] \[--inplace\]

- \[--no-strict\] \[--debug\] \[--ignore-parsing-errors\]

  \[--encoding ENCODING\] \[-t MILLISECONDS\]

Deduplicate repeated subtitles.

### options:

- **-h**, **--help**

  show this help message and exit

- **--input** FILE, **-i** FILE

  the file to process (default: stdin)

- **--output** FILE, **-o** FILE

  the file to write to (default: stdout)

- **--inplace**, **-p**

  modify file in place

- **--no-strict**

  allow blank lines in output, your media player may explode

- **--debug**

  enable debug logging

- **--ignore-parsing-errors**, **-c**

  try to keep going, even if there are parsing errors

- **--encoding** ENCODING, **-e** ENCODING

  the encoding to read/write files in (default: utf8)

- **-t** MILLISECONDS, **--ms** MILLISECONDS

  how many milliseconds distance a subtitle start time must be within of another to be considered a duplicate (default: 5000ms)

### examples:

-

  Remove duplicated subtitles within 5 seconds of each other

-

  `$ srt deduplicate -i duplicated.srt`

-

  Remove duplicated subtitles within 500 milliseconds of each other

-

  `$ srt deduplicate -t 500 -i duplicated.srt`

-

  Remove duplicated subtitles regardless of temporal proximity

-

  `$ srt deduplicate -t 0 -i duplicated.srt`