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Complete Version history / Release notes / Changelog / What's New for SubtitleYC
SubtitleYC v0.6.0
Changes
Added a small web installer that downloads and verifies the app and CPU OCR, then installs both. CPU OCR is ready when setup finishes; internet is required during installation.
Added optional Nvidia GPU OCR in GPU OCR, with local GPU/driver checks, download progress, pause/resume, and checksum verification.
Clarified download size, installed disk usage, temporary installation space, and the estimated combined app/OCR size. The UI distinguishes SubtitleYC 0.6.0 from the VideOCR 1.5.1 engine.
The welcome screen recognizes the installed CPU package and offers optional GPU setup.
Added a clearer GPU OCR panel with compatibility checks, a compact installed-CPU status, and expandable storage/download details. Enable GPU Acceleration after installing GPU OCR to use it.
Improved video scrubbing by batching rapid slider updates and preserving the final seek position.
Kept long video titles clear of preview buttons and added a full-title tooltip.
Fixed native video covering dialogs and added protection for unsaved subtitle edits.
SubtitleYC v0.5.2
Changes
Added controls to remove the current video or subtitles from the active preview without deleting their files from Previous Projects.
Added a privacy-safe Copy System Info button for troubleshooting and bug reports.
Changed the load/open-video keyboard shortcut from Ctrl+O to Ctrl+L.
SubtitleYC v0.5.1
Changes
Smoother Subtitle Editor timeline scrubbing.
A larger Subtitle Editor video preview.
SubtitleYC v0.4.0
SubtitleYC is a free and open-source Windows app for extracting, reviewing,
and editing frame-timed subtitles from video.
SubtitleYC is distributed under the MIT License. Bundled third-party tools
retain their own licences, which are included with the installation.
Highlights
Local video and URL workflows in one desktop app.
Native PyAV frame preview with crop selection and subtitle overlay.
CPU and Nvidia GPU VideOCR editions.
31 alphabetically listed OCR language choices, including common Asian languages.
Correct Simplified and Traditional Chinese VideOCR language mapping.
Subtitle import, cue timing edits, undo/redo, and SRT export.
yt-dlp format and site-subtitle discovery.
Project library, storage controls, activity rows, local logs, and crash logs.
Dark and light themes with persisted settings.
English and Simplified Chinese app interfaces.
English or Simplified Chinese can be selected on the installer's first screen.
The installer language becomes the app language on first launch and can be changed later in Settings.
Choose an Installer
CPU is the safest default and does not require an Nvidia GPU.
CUDA 12.9 is for supported Nvidia GTX 16 through RTX 50 systems.
Installing another edition replaces the app and OCR runtime while preserving
the user's workspace under %LOCALAPPDATA%\SubtitleYC\workspace.
Known Limitations
This is an early release and may still contain crashes or UI defects.
OCR accuracy depends on language, image quality, crop, and source frame rate.
Video websites change independently; yt-dlp workflows can require app updates.
The GPU installer is large because it includes the CUDA OCR runtime.
These installers are not Authenticode-signed. Windows may show an unknown-publisher warning; compare the SHA-256 digest shown by GitHub before running them.
Changes
Added a small web installer that downloads and verifies the app and CPU OCR, then installs both. CPU OCR is ready when setup finishes; internet is required during installation.
Added optional Nvidia GPU OCR in GPU OCR, with local GPU/driver checks, download progress, pause/resume, and checksum verification.
Clarified download size, installed disk usage, temporary installation space, and the estimated combined app/OCR size. The UI distinguishes SubtitleYC 0.6.0 from the VideOCR 1.5.1 engine.
The welcome screen recognizes the installed CPU package and offers optional GPU setup.
Added a clearer GPU OCR panel with compatibility checks, a compact installed-CPU status, and expandable storage/download details. Enable GPU Acceleration after installing GPU OCR to use it.
Improved video scrubbing by batching rapid slider updates and preserving the final seek position.
Kept long video titles clear of preview buttons and added a full-title tooltip.
Fixed native video covering dialogs and added protection for unsaved subtitle edits.
SubtitleYC v0.5.2
Changes
Added controls to remove the current video or subtitles from the active preview without deleting their files from Previous Projects.
Added a privacy-safe Copy System Info button for troubleshooting and bug reports.
Changed the load/open-video keyboard shortcut from Ctrl+O to Ctrl+L.
SubtitleYC v0.5.1
Changes
Smoother Subtitle Editor timeline scrubbing.
A larger Subtitle Editor video preview.
SubtitleYC v0.4.0
SubtitleYC is a free and open-source Windows app for extracting, reviewing,
and editing frame-timed subtitles from video.
SubtitleYC is distributed under the MIT License. Bundled third-party tools
retain their own licences, which are included with the installation.
Highlights
Local video and URL workflows in one desktop app.
Native PyAV frame preview with crop selection and subtitle overlay.
CPU and Nvidia GPU VideOCR editions.
31 alphabetically listed OCR language choices, including common Asian languages.
Correct Simplified and Traditional Chinese VideOCR language mapping.
Subtitle import, cue timing edits, undo/redo, and SRT export.
yt-dlp format and site-subtitle discovery.
Project library, storage controls, activity rows, local logs, and crash logs.
Dark and light themes with persisted settings.
English and Simplified Chinese app interfaces.
English or Simplified Chinese can be selected on the installer's first screen.
The installer language becomes the app language on first launch and can be changed later in Settings.
Choose an Installer
CPU is the safest default and does not require an Nvidia GPU.
CUDA 12.9 is for supported Nvidia GTX 16 through RTX 50 systems.
Installing another edition replaces the app and OCR runtime while preserving
the user's workspace under %LOCALAPPDATA%\SubtitleYC\workspace.
Known Limitations
This is an early release and may still contain crashes or UI defects.
OCR accuracy depends on language, image quality, crop, and source frame rate.
Video websites change independently; yt-dlp workflows can require app updates.
The GPU installer is large because it includes the CUDA OCR runtime.
These installers are not Authenticode-signed. Windows may show an unknown-publisher warning; compare the SHA-256 digest shown by GitHub before running them.