Platform subtitles
Human or automatic platform subtitles may omit lines. Sources and timestamps are preserved.
Opening the reading link…
Long videos, read the highlights.
Find useful ideas in long videos. Take the original words, translations and sources with you. Paste a link to a Bilibili or YouTube video and read it.
Free subtitle readingNo sign-in neededBilibili · YouTube
Current:Change link
Check subtitles first · Ask before transcribing
No phone numberReading pages are private and not indexedNo ads
00:00:44This question dates back at least to the 1940s, with Claude Shannon's seminal work…
00:22:11…Shannon analyzed a different model of the English language…: his wife Betty.
00:22:25As the story goes, Shannon pulled out a book and began asking Betty to guess each next letter.
00:30:21…he estimated the entropy of English to be about one bit per character.
Summary AI-generated
Start with the big picture
- Compression and prediction are mathematically equivalent. 00:59
- Robot instructions: 1.75 bits per instruction at best. 06:00
Claude ShannonInformation theoryCross-entropy
Chapters 16 chapters
↓
From videos already read on this site · abridged, summary translated
Follow each voice in an interview
Separate the voices, then filter the conversation by speaker.
How it works
Three steps: turn an hour-long video into a ten-minute read
No extension, no downloads. A video that already has subtitles is readable in seconds; for one without, you can choose transcription.
1
Paste a link
A Bilibili or YouTube video URL works. Vidleaf first detects the platform, the length and whether subtitles exist, then decides how to handle it.
https://www.youtube.com/watch?v=zxRgfBXn6Mg
Detected: YouTube · 22:00 · English subtitlesFree to read
Optional: translate · summarize1 AI call each
No subtitles? Transcribe 22 minOnly after you confirm
2
Read it through, or start with the summary
Subtitles are laid out in time order, side by side in two languages, with one-click Simplified/Traditional switching. In a hurry? Read the summary and chapters first and decide whether the detail is worth it.
Shao Allen × Justin Sun: In-depth Conversation4:22:30 · 68 chapters
06AI-assisted fitness and data management
07Starting at twenty without connections or resources
08AI advice for young people on limited budgets
3
Find it, tick it, export it
Search a word and jump straight to that line; click a timestamp to go back to the video. Tick the lines you need and export them with their timestamps.
04:25F-117 stealth aircraft cross the border, heading for Baghdad
05:04The stealth bombers go undetected, circling over Baghdad
05:25Tomahawk missiles launch against communication targets
2 of 625 lines selected↓ Selected SRT
Where it fits
A long video worth watchingis worth reading first
Lectures, interviews, launches and tutorials: read the transcript to find the part you need.
Podcasts and interviews
See who said what and cite their words with timestamps.
Reading language courses
Compare Chinese and English line by line; click timestamps to listen again.
Lectures and talks
Read the summary, then jump to the concept you need.
Tech talks and tutorials
Copy commands, flags and version numbers from the transcript.
Launches and keynotes
Read the key points, then decide which part to watch in depth.
Research and citation
Export selected lines with timestamps for your notes and references.
What you get
Read first. Process more when you need it.
Every feature is labelled with the quota it uses. Reading existing subtitles, searching, script switching and exporting are never metered.
Full subtitle reading
Free · no accountRead existing subtitles in order, navigate by chapter and switch between Simplified and Traditional Chinese.
Keyword search and timestamp jumps
FreeSearch and highlight matching text; click timestamps to return to the video.
Summary
AI callsRead an overview and chapter highlights with timestamps. One use per video, regardless of length.
Translation and bilingual view
AI callsCompare Chinese and English subtitles line by line in one view.
Transcription for videos without subtitles
Transcription minutesTranscribe audio into timestamped text when subtitles are unavailable. Review the minutes required before submitting.
Speaker labels and detection
Signed in · transcription minutesIdentify speakers automatically, review inferred labels and edit them manually.
Also: tick-and-export, history (once signed in), and live job progress that survives closing the page and coming back.
Capabilities and limits
Keep the source. Check what matters.
Audio transcription
Audio-to-text may contain word or punctuation errors. Usage is counted in audio minutes.
Machine translation
Chinese–English translations need checking against the original. Usage counts as AI tasks.
Speaker suggestions
Automatic voice separation needs human review. You can edit and merge speaker labels.
Free quota
Read captions free,with the quota spelled out
Transcription, speaker detection and AI are metered separately. Review each estimate before confirming purchased use.
No account
¥0
Open the page and start. Good for a first look.
- Read subtitled videos, a few times a day
- Search, script switching, tick-and-export
- No transcription, summary or translation
- No history kept
Free account
¥0Email code or Google; no phone number needed.
Guests have limited daily reads. After registration, existing subtitles are unlimited; transcription and AI use allowances.
- Subtitled videos: unlimited
- Transcription 30 min / week
- AI summary / translation 10 / week
- One-off sign-up bonus: 30 minutes + 10 AI tasks; carries over until used.
- New transcriptions: up to 120 minutes per video; history and speaker labels included.
Plans & purchase
Pack S: 600 transcription minutes. Regular US$4.99 → US$2.49 for eligible first orders after registration. One-time purchase; no automatic renewal. See all allowances and terms before paying.
See plans & purchaseBase allowances reset Monday 00:00 Beijing time and do not accumulate. Sign-up bonuses carry over until used. When new processing is paused, saved content remains readable. Changes to allowances will be announced on the site in advance.
Questions
Before you start,you may want to know
Not answered here? There is a contact address in the footer, and the guide covers more.
Can I use it without an account?
Yes. Read, search and export subtitled videos without signing in, with a daily limit on new reads. Signed-in users can read subtitled videos without a limit, use transcription, summaries and translation within their allowances, and save history and personal labels. Email code or Google; no phone number needed.
Which platforms are supported?
Bilibili and YouTube for now. Paste the video page URL; BV-number links and youtu.be short links are both recognized.
Can I open a video in one step while watching it?
In the video's address, replace youtube.com or bilibili.com with vidleaf.app and press Enter to open it in Vidleaf.
What if the video has no subtitles?
When a completed subtitle check finds no subtitles, you may confirm transcription. Weekly allowance: 30 min / week; new transcription limit: 120 min / video. The confirmation shows duration and available minutes. If duration is unknown, actual audio duration is counted.
How much is free, and when does it reset?
Guests have limited daily reads. After registration, existing subtitles are unlimited; transcription and AI use allowances. Base allowances: 30 min / week and 10 / week, reset Monday 00:00 Beijing time. The one-off bonus (30 minutes + 10 AI tasks) carries over until consumed.
Will it cost money later? Will there be ads?
Reading existing subtitles is free. S packs and single passes are one-time purchases with no automatic renewal. View products in your account; prices, entitlements and refund terms are shown before purchase. We run no ads.
Can anyone else see what I read or summarized?
Reading pages are not indexed by search engines. Your jobs, history and personal labels are visible only to you. Subtitles, translations and summaries for public videos can be reused from cache; clearly marked homepage examples also show saved speaker detection. Uploaded content is not shared across accounts.
Separately, the operator publishes a small number of public transcript pages (/en/transcripts/) for YouTube videos their creators released under CC BY; they are unrelated to your tasks.
Where does my audio go during transcription?
Transcription, speaker detection and summaries are done by third-party AI services, so audio leaves this site. We ask for your consent separately before you first use them, and the outgoing requests carry no account information. The providers and retention periods are in the privacy policy.
Are the summaries accurate?
Summaries are AI-generated and can be skewed or incomplete. That is why every point carries its source time and the full subtitles stay next to it — for anything important, click back to the video and check.
Hand your next long videoto Vidleaf
Paste a video link to start reading. One-off sign-up bonus: 30 minutes + 10 AI tasks; carries over until used.
