Share a tab with audio. Play your video. Let the words flow.
Please use Google Chrome or Microsoft Edge for the best experience.
Screen preview
NO SOURCE CONNECTEDYour screen, with subtitles.
Choose a Chrome tab and enable
“Also share tab audio”.
- Open your video in another Chrome tab.
- Click Share screen & start → Chrome Tab → enable tab audio.
- Play the video. Final captions appear on the right.
සිංහල, English හෝ தமிழ் තෝරලා video එක play කරන්න. Caption එක click කරලා වචන වෙනස් කරන්න පුළුවන්.
Live transcript 0 captions
Live text first. Editable captions next.
Export when you're ready.
Recognition & audio Fine-tune your input
Optional filters can help noisy audio, but may also reduce recognition quality. Changes take effect immediately.
Low-confidence words are flagged, never deleted. Confidence is the service's estimate, not a measured accuracy score.
For microphone mode only. Device labels may require microphone permission. Tab mode always uses shared audio.
Word corrections & subtitle layout Your names. Your vocabulary.
One literal phrase per line: wrong => correct. Matching is case-insensitive; raw recognition stays in the JSON backup.
Split timing is proportional and approximate. You can adjust every start and end time.
Transcript tools & sessions Keep your work organized
Edits, deletes, splits, merges and bulk changes support Undo. Browser draft autosaves locally.
Up to 10 sessions are stored in this browser. Export JSON for a portable backup.
Import replaces the current transcript after confirmation. Capture must be stopped first.
Shortcuts: Alt+P pause / resume, Alt+E export SRT, Alt+F caption view, Alt+Z undo.
Screen recording Capture alongside your transcript
Caption recording uses a canvas of your shared screen plus the live text. Raw recording captures the original screen. Both record shared audio only; microphone-mode audio is not added. Start recording before playing the video; exports use session time, while recordings start at the Record click. Recording start time is stored in JSON. Keep this tab visible for smoother caption video. Recording auto-stops at 250 MB to limit memory usage.
Waiting for speech…