Subtitle Tool & Converter


Convert subtitle files to other file formats or use the tool to check subtitles for guidelines, repair or correct them.


From
Convert To
Framerate
image

Fix Subtitles


Check Guidelines







What can the subtitle converter do?

This converter can do much more than just convert. It also repairs your files and offers a lot of options for automatic adjustments. Some of the common errors are always corrected automatically:

  • Incorrect or faulty subtitle numbering

  • Removing unnecessary blank lines in the subtitle file (Fix for Premiere Pro)

  • Technical reformatting the subtitle file

  • Strip whitespace from the beginning and end of a subtitle



Supported import formats

Subtitle: SubRip (SRT), WebVTT, SBV, TXT, CSV
Marker: XML, EDL, fioxml, fiojson, JSON
Reference Timeline: EDL, XML

Supported export formats

Subtitle: SubRip (SRT), WebVTT, SBV, XML, PDF, TXT, CSV, TSV, JSON

Marker: XML, EDL



Remove empty subtitles

This function removes all subtitles without any text.



Remove erroneous subtitles with a length of 0 frames

This function removes erroneous subtitles with a length of 0 ms, which can be caused by the conversion or editing by other subtitle programs.



Merge identical subtitles

This function merges identical subtitles, provided there are no gaps between them.



Add gap / Set minimum gap duration between subtitles

With this function, missing pauses between subtitles, can be added automatically. To allow a gap between two subs, the end of a subtitle is truncated. The In point will not be changed. A minimum subtitle length of 1 second will not be undercut. The gap size can be specified in different units. A gap of at least 100ms is recommended.



Set minimum subtitle duration

With this function you can force subtitles to have a minimum duration.



Add timeline (edl or xml)

Upload an EDL file of the production to make further automatic subtitle adjustments. If you don't have a production cut timeline you can use a cut detection tool to create an EDL. The edl only needs one video track. Other tracks are ignored. Make sure that the timecode of the edl timeline and the subtitle match.

XML support will be added soon.


Trim subtitle start to shot changes

To use this function an EDL or XML timeline is required.

Activate this option to trim all subtitle starts, within the defined range before or after a cut change, to the cut. For example, if you select 4 frames: All subtitles that start within 4 frames of a cut will be trimmed to the shot change.

Offset (Optional): Optionally you can set an offset and move the start of the subtitle by frames from cut. The offset must be within the range, but can contain a negative value (move backwards) or positive value (move forward).



Trim subtitle ends to shot changes

To use this function an timeline edl or xml is required.

Activate this option to trim all subtitle ends, within the defined range before or after a cut change, to the cut. For example, if you select 2 frames: All subtitles that ends within 2 frames of a cut will be trimmed to the shot change.

Offset (Optional): Optionally you can set an offset and move the end of the subtitle by frames from cut. The offset must be within the range, but can contain a negative value (move backwards) or positive value (move forward). For example, the Range is 6 frames and the Offset is -2 frames, all subtitles ending within 6 frames of the cut change will be placed 2 frames before the cut change.



Clear frames after shot changes from subtitles

To use this function an timeline edl or xml is required.

With this function, you can trim all subtitles which starts within the defined range after a shot change. For example, if you select 12 frames: All subtitles that start within 12 frames of a shot change will be trimmed to 12 frames after shot change (except all subtitles starting directly with the shot change). It is recommended to use this function together with "Trim subtitle start to shot changes". The range for the "Trim" function should be half as large as this one.



Extraneous whitespace removal

Replaces multiple space in a subtitle with a single space and strips whitespace from the beginning and end of a line.



Remove Tags

This function allows to remove text between two tags like like [ ], < >, { } or ( ). Use the function "Remove Text between < >" to remove style tags like <i> </i>.



Clear all subtitles

This function removes all subtitles but leaves the timecodes as placeholders. This serves for example as a template for subtitle translations into other languages.



Shift all subtitles

Use this function to move all subtitles by a certain range. You can enter a positive or negative value.



Add a start subtitle

This option adds a simple subtitle to the first frame. This can be useful for some Premiere Pro workflows.



Check subtitle guidelines

With this function a subtitle file can be checked for compliance with subtitle guideline presets. Please always check the specifications for your delivery. This is an experimental function and only the following rules can be checked.

ARD, ORF, SRF, ZDFBBCNetflix
CPS (Characters-per-second)13-15-20
CPS Children9-17
WPM (Words-per-minute)-160-180-
CPL (Characters-per-line)max. 37max. 37max. 42
Lines Maximum232
Minimum duration1s0.3s/word0.83s
Maximum duration8s-7s
Gap Minimum duration1 frame1 s2 frames (*No gaps of 3-11 frames allowed. Either 2 frames or 12 frames or more. Close gaps by extending the out-time of the previous subtitle.)
More information about the subtitle regulations:ard.deBBC Netflix

Other regulations can be added. Please send us a message.



Automatic subtitle translations

Using the deepl.com service, we can offer an instant translation for your subtitles. Please send us an email for further details.




Planned extensions

  • other subtitle formats
  • spell check
  • generate subtitles from audio



Tags


Converter Tools CSV EDL JSON PDF SBV SRT TXT WebVTT XML Adobe Premiere Pro Apple Final Cut X Avid Media Composer DaVinci Resolve