Subtitle Edit
Free subtitle repair with a local file workflow
Where it fits
Subtitle Edit is a free, open-source subtitle editor for people who need to fix timing, correct text or convert an existing subtitle file. Its version 5 documentation covers Windows, macOS and Linux, alongside the seconv command-line converter. A fixed delay and gradually drifting captions need different repairs: shifting all cues suits a constant offset, while point synchronization uses reference positions from the matching video. Core editing works locally. Optional online translation and recognition providers have separate data-handling terms. Our bounded seconv 5.2.0 test shifted 12 synthetic cues across English, Simplified Chinese and Spanish files without changing their text or line breaks. It did not evaluate speech recognition, video playback or the desktop interface.
Consider it for
- Repairing an existing subtitle file
- Correcting a constant timing offset
- Local subtitle format conversion
Know the limits
- A fixed shift does not repair changing drift or missing scenes
- Optional online services have their own privacy terms and may charge separately
- Our test does not establish transcription accuracy or desktop usability
Prices & plans
Published prices keep their original currency and billing terms. Taxes, promotions and checkout prices can differ.
Features and practical details
10 features
Row headings group related topics. Each answer keeps its specific scope. An unverified answer means we do not have enough evidence.
Free plan limits
Platforms
Offline use
Subtitle Edit
Local work
Core editing, conversion, playback and local backup run on the device.
Vendor documentedSource
Optional online processing
Subtitle Edit
Optional online processing
Choosing an online translation, speech or OCR provider can send the required data directly to that provider under its own privacy policy.
Vendor documentedSource
Fixed subtitle delay
Subtitle Edit
Fixed subtitle delay
Adjust all times shifts every line, selected lines or selected lines and subsequent cues earlier or later by a chosen amount.
Vendor documentedSource
Changing subtitle drift
Subtitle Edit
Changing subtitle drift
Point sync uses reference positions to synchronize cues when a single offset is insufficient.
Vendor documentedSource
Export
Subtitle Edit
Subtitle conversion
The seconv command-line converter supports subtitle format conversion with explicit encoding and output-folder controls.
Vendor documentedSource
Video caption tools
Subtitle Edit
Video caption tools
The documentation covers speech-to-text, subtitle burn-in and embedded subtitle tracks as separate workflows.
Availability in documentation does not establish recognition quality or a successful video export in our test.
Vendor documentedSource
Observed SRT shift
Subtitle Edit
Observed SRT shift
seconv 5.2.0 shifted all 12 cues in three synthetic SRT files exactly 1.5 seconds earlier while preserving their text and line breaks.
Windows x64 file-level test on 3 October 2026. English, Simplified Chinese and Spanish samples had four cues each. No audio or video synchronization was measured.
Observed in an app testRead the app trial
Transcription accuracy
Subtitle Edit
Transcription accuracy
Not evaluated in our test.
Importing and shifting existing text does not test automatic captions, translation quality or accent handling.
Not yet verified
| Feature | Subtitle Edit |
|---|---|
| Free plan limits | Application cost Free and open source; optional third-party online services are separate. |
| Platforms | Devices Version 5 provides Windows, macOS and Linux builds. Check the requirements for the exact release. |
| Offline use | Local work Core editing, conversion, playback and local backup run on the device. Vendor documentedSource |
| Optional online processing | Optional online processing Choosing an online translation, speech or OCR provider can send the required data directly to that provider under its own privacy policy. Vendor documentedSource |
| Fixed subtitle delay | Fixed subtitle delay Adjust all times shifts every line, selected lines or selected lines and subsequent cues earlier or later by a chosen amount. Vendor documentedSource |
| Changing subtitle drift | Changing subtitle drift Point sync uses reference positions to synchronize cues when a single offset is insufficient. Vendor documentedSource |
| Export | Subtitle conversion The seconv command-line converter supports subtitle format conversion with explicit encoding and output-folder controls. Vendor documentedSource |
| Video caption tools | Video caption tools The documentation covers speech-to-text, subtitle burn-in and embedded subtitle tracks as separate workflows. Availability in documentation does not establish recognition quality or a successful video export in our test. Vendor documentedSource |
| Observed SRT shift | Observed SRT shift seconv 5.2.0 shifted all 12 cues in three synthetic SRT files exactly 1.5 seconds earlier while preserving their text and line breaks. Windows x64 file-level test on 3 October 2026. English, Simplified Chinese and Spanish samples had four cues each. No audio or video synchronization was measured. Observed in an app testRead the app trial |
| Transcription accuracy | Transcription accuracy Not evaluated in our test. Importing and shifting existing text does not test automatic captions, translation quality or accent handling. Not yet verified |
Sources for this profile
- Subtitle Edit: Adjust All Times (opens in a new tab)
subtitleedit.github.io
- Subtitle Edit: seconv command-line reference (opens in a new tab)
subtitleedit.github.io
- Subtitle Edit version 5 documentation (opens in a new tab)
subtitleedit.github.io
- Subtitle Edit: Point Sync (opens in a new tab)
subtitleedit.github.io
- Software Signal: seconv 5.2.0 synthetic SRT offset observation (opens in a new tab)
www.softwaresignal.net · Exact file-level output verification for three owned fixtures; no GUI, speech or video-playback claim.