subtitle-deduplicator 🎬
SRT Subtitle Duplicate Remover
Remove duplicate/ghost entries from auto-generated SRT subtitle files. | GitHub | PyPI | AUR |Blog
Why?
Auto-generated SRT subtitles (from YouTube, Whisper, etc.) often contain duplicated entries in a "scrolling karaoke" pattern:
1
00:00:00,440 --> 00:00:02,909
so welcome to the last Talk of the day
2
00:00:02,909 --> 00:00:02,919
so welcome to the last Talk of the day
3
00:00:02,919 --> 00:00:06,630
so welcome to the last Talk of the day
and OSS what do ABI and why should they
Each real entry shows 2 lines (previous + new), and between them are 10ms "ghost" entries that only repeat the previous text. This roughly triples the file size and makes the subtitles unreadable.
Install
PyPI
pip install subtitle-deduplicator
Arch Linux (AUR)
yay -S subtitle-deduplicator
Usage
# Basic usage (outputs to video_deduped.srt)
subtitle-dedup video.srt
# Specify output file
subtitle-dedup video.srt -o video_clean.srt
# Overwrite in place
subtitle-dedup video.srt --in-place
# Custom ghost threshold (default: 20ms)
subtitle-dedup video.srt -t 50
# Specify encoding
subtitle-dedup video.srt -e latin-1
Example Output:
✔ Deduplication complete!
ℹ Input: video.srt
ℹ Output: video_clean.srt
ℹ Original entries: 1559
ℹ Deduplicated: 760
ℹ Removed: 799 (51.3%)
What It Removes
| Duplicate Type | Description |
|---|---|
| Ghost entries | 10ms entries that repeat previous text |
| Carry-over lines | First line duplicating previous entry's last line |
| Identical entries | Back-to-back entries with same text |
| Empty entries | Entries with no actual text content |
Zero Dependencies
subtitle-deduplicator uses only Python standard library — no pip install requirements beyond Python 3.8+.
License
MIT
1 maintainer
Metadata
1 maintainer
Release files for subtitle-deduplicator 1.0.2
For a detailed explanation of source distributions (sdists) and built distributions (wheels), please see the package formats documentation.
Source distribution (sdist)
| File | Size | Uploaded | Provenance | |
|---|---|---|---|---|
| subtitle_deduplicator-1.0.2.tar.gz | 10.7 kB | With provenance | Details |
Built distribution (wheel)
| File | Interpreter | ABI | Platform | Reset |
|---|---|---|---|---|
| subtitle_deduplicator-1.0.2-py3-none-any.whl | Python 3 | none | any | Details |
Total release size: 18.4 kB
Release files / subtitle_deduplicator-1.0.2.tar.gz
| Download URL | subtitle_deduplicator-1.0.2.tar.gz |
|---|---|
| Size | 10.7 kB |
| Tags | Source |
|
SHA-256 checksum How to use checksums |
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|
|
BLAKE2b-256 checksum How to use checksums |
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| Upload date | |
|
Uploaded using Trusted Publishing? What is trusted publishing? |
Yes |
| Uploaded via |
twine/6.1.0 CPython/3.13.7
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Provenance
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Signed by GitHub Actions, verified by PyPI on Apr 4, 2026.
Transparency logRelease files / subtitle_deduplicator-1.0.2-py3-none-any.whl
| Download URL | subtitle_deduplicator-1.0.2-py3-none-any.whl |
|---|---|
| Size | 7.7 kB |
| Tags | Python 3 |
|
SHA-256 checksum How to use checksums |
30d6b5639a6f1bdf9773ec65cd102161cb7933df18ed6f5cb3078514b816e92e
|
|
BLAKE2b-256 checksum How to use checksums |
d6021e7b3d776788589172607db9c6d9aafe916588d9b6ea95dc622971e48545
|
| Upload date | |
|
Uploaded using Trusted Publishing? What is trusted publishing? |
Yes |
| Uploaded via |
twine/6.1.0 CPython/3.13.7
|
Provenance
Provenance describes where a file came from. On PyPI, provenance is shared via attestations, which provide a verifiable record of the build or publishing details. View details, limitations and caveats.
PyPI Publish Attestation
PyPI verified that this artifact, at this checksum, originated from the publisher listed below.
Signed by GitHub Actions, verified by PyPI on Apr 4, 2026.
Transparency logSecurity for subtitle-deduplicator 1.0.2
Provenance
Provenance describes where a file came from. On PyPI, provenance is shared via attestations, which provide a verifiable record of the build or publishing details. View details, limitations and caveats.
Full provenance
All 2 files in this release have been uploaded with provenance metadata.
Attestation for subtitle_deduplicator-1.0.2.tar.gz
PyPI Publish Attestation
PyPI verified that this artifact, at this checksum, originated from the publisher listed below.
Signed by GitHub Actions, verified by PyPI on Apr 4, 2026.
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PyPI is a repository for distributing packages, not a service for auditing them. While third-party security researchers and our staff do their best to detect and remove malicious packages, PyPI cannot guarantee the quality, security or suitability of any given package.
