Free: read existing captions on YouTube and Bilibili (5 reads/day for guests, unlimited for signed-in users), search, export. Free account: 30 min/week transcription, 10/week AI tasks. Single Pass: US$1.99 (1 transcription up to 180 minutes, 2 AI uses). Light Pack S: US$2.49 first purchase (was US$4
Not given
Key features
Read captions without sign-in
Search transcripts and jump to timestamps
Bilingual view for Chinese and English
Automatic speaker detection and labeling
AI summaries with chapter highlights
Transcribe videos without captions
Export quotes as TXT, SRT, or Markdown
AI translation between Chinese and English
Save reading history and personal labels
Upload local audio or video files
Upload images and reference patches to fix
Mark specific regions to replace and elements to use
Automatic style, lighting, and edge alignment
Support for multiple image types as patches
Preserve surrounding image context and physics
What makes it different
Free subtitle reading without account for YouTube and Bilibili
One-click jump from transcript to video moment
No downloads or browser extensions needed
Metered allowances let you control costs
Bilingual transcripts with line-by-line comparison
Keep 90% of AI-generated content while fixing only what needs to be changed
Leave everything else untouched and preserve overall layout
Serves creators who need specific fixes, not full image regeneration
Vidleaf
ReDiagram