Timed to every word
Each word gets its own start and end time from the audio, then words are grouped into short one-to-three-word captions that break at punctuation, the way people actually speak.
Features
Every word lit up, right on cue.
Karaoke Captions listens to your video, times every single word, and lets you style the captions before it exports a finished MP4. All of it runs inside your browser, so the video never leaves your device.
- $0no watermark
- 0 bytesuploaded
- 69Pro styles
How it works
Four steps. Zero uploads.
Drop a clip in and the rest happens on your own computer, from hearing the words to writing the finished video.
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01
Drop a video
Any clip your browser can play. It opens right on the page, and nothing is sent anywhere.
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02
It listens, word by word
A speech model runs in your browser and writes down every word with its exact start and end time.
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03
Pick a look
Choose a style and fine-tune colour, font, size and motion. The preview plays as you change it.
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04
Export
A finished MP4 with the captions burned in and your original audio, plus SRT and VTT files. No watermark.
Private by design
Your video never leaves your device.
Most caption apps upload your clip and transcribe it on their servers. Here the speech model comes to you instead: your browser downloads it once, keeps it, and does the listening on your own machine.
- No upload, so no waiting for one
- Keeps working offline once loaded
- No account needed for the free tool
The editor
Everything you need to nail the timing.
The whole editor is free: no watermark, no limit on how many videos you caption.
Fix any word
Edit the transcript like a document, or double-click a caption on the timeline to change its words.
A real caption timeline
Scrub and zoom through your video and see every caption laid out against the audio waveform.
Drag to position
Grab the captions on the preview and move them up or down the frame.
One style editor
Colours, font, weight, case, size, spacing, position, words on screen, motion and emphasis.
Undo anything, save your look
Every change can be undone. Save a style you like by name and reuse it on the next video.
Export, ready to post
A burned-in MP4 with your original audio, or SRT and VTT subtitle files for any player or editor.
Pro
Want more sparkle? 69 animated styles.
Every Pro style and Magic tool works on your own video before you pay. You only need Pro to export with them.
NeonGlideStickerChromeTypewriterComic PopHighlighterGlitchSing-AlongNeonGlideStickerChromeTypewriterComic PopHighlighterGlitchSing-Along
DeparturesChat BubbleAuroraBlock 3DReceiptPunchHologramRansom NoteSpotlightDeparturesChat BubbleAuroraBlock 3DReceiptPunchHologramRansom NoteSpotlight
Auto emoji
A matching emoji pops above captions that mention money, food, pets, love and 350+ other words.
Smart highlights
The one word in each caption that matters, like a number or a strong word, stands out on its own.
Filler-word cleanup
Hides “um”, “uh” and “hmm” from your captions in one click. Your audio stays untouched.
See Pro plans Plus twelve extra display fonts, and full style control on every look.
The difference
Same captions. None of the catches.
Typical upload-based caption apps
- Upload the video, then wait
- Per-video or length limits
- Watermark until you pay
- Your clip sits on their servers
Karaoke Captions
- Opens instantly, no upload
- Unlimited videos
- MP4 with no watermark, free
- Your clip stays on your device
Frequently asked questions
Is it really free?
Yes. Transcription, the editor, the Classic and Lyrics styles, and MP4, SRT and VTT export are free, with no watermark and no limit on videos. Pro is an optional upgrade for the animated styles and Magic tools.
Do I need to sign up?
No. The free tool never asks for an account. You only sign in to buy Pro or to sync your saved styles between devices.
Which browsers work best?
Chrome or Edge on a desktop or laptop. The speech model runs on your own computer, so a recent machine transcribes faster. After the first visit the tool works offline.
Is my video uploaded anywhere?
No. The video is opened, transcribed and exported inside your browser. The only download is the speech model itself, the first time you use it.