Captions land exactly on the speech. I used to spend evenings nudging lines around by hand.
AI Caption Generator: Captions That Keep Viewers Watching
Most social video is watched on mute. Upload a clip and get accurate captions that keep viewers watching — in minutes.
MP4, MOV, MKV & more · up to 8 GB per file · export SRT, VTT or MP4
Watched on mute, still followed
Most social videois watchedon mute.
9:41Click or drag & drop to upload your audio or videoTap to upload your audio or video
MP3, MP4, M4A, MOV, AAC, WAV, OGG, OPUS, MPEG, WMA, WMV
No credit card required · Files encrypted · Never used for AI training
Why Captions Are Non-Negotiable
The majority of social video plays without sound. Captions are how your message survives the scroll.
Captions open your content to deaf and hard-of-hearing viewers — and help meet accessibility requirements.
Captioned videos hold attention longer and are easier to follow in any environment — commute, office, gym.
How to Generate Captions in 3 Steps
From raw clip to captioned video, fast.
Generate Captions Free30 free minutes · No credit card
Drop in MP4, MOV, MKV or WEBM up to 8 GB — or paste a YouTube/Vimeo link.
Speech is transcribed and split into short, readable caption lines with exact timing.
Adjust any line on the visual timeline, then export SRT or VTT for your platform or editor.
Captions That Do Their Job
Readable, accurate, on time.
Perfect timing
Every caption lands exactly on the speech — no drifting, no manual syncing.
Readable line breaks
Lines are split for comfortable reading speed, following caption readability rules.
Translate into 50+
One caption file becomes a localisation kit — timing preserved across languages.
SRT / VTT export
Standards-compliant files for every social platform, LMS and editing suite.
From One Clip to Every Platform
Generate captions for a clip and export them for YouTube, Instagram, TikTok, LinkedIn or your course platform. One SRT/VTT file works across all of them — no re-captioning per network.
Brand terms, names, tricky jargon — fix any line on a waveform-synced timeline with instant preview. What you see in the editor is exactly what viewers read.
Loved by Creators, Teams and Researchers
Rated Excellent 4.8/5 based on 580+ reviews
YouTube kept mangling our brand names. Now I fix them once in the editor and upload a clean SRT.
Uploaded a two-hour recording during lunch — the transcript was waiting before I finished my coffee. The accuracy genuinely surprised me.
Our legal team approved it because processing stays on EU infrastructure. That alone ruled out most of the competition.
Captions split where a human would split them. Viewers stopped complaining about walls of text.
Added captions to every short — average watch time rose noticeably within a month.
No card, no tricks — I tested real files before paying and upgraded a week later because the workflow stuck.
Had trouble with a huge file — support walked me through batch upload the same morning. Rare these days.
A caption generator creates on-screen text from what is said in a video. BlaBlaScribe transcribes the speech with AI, times each caption to the voice and lets you pick a style, such as a clean box, a bold outline or word highlighting. Export an MP4 with the captions burned in for social media, courses or ads, or download SRT or VTT for YouTube and video players. Captions work in 120+ languages.
Captions transcribe the same language that’s spoken (often for muted or accessible viewing); subtitles usually translate into another language. This tool does both — generate captions, then translate them into 50+ languages.
SRT and VTT are accepted by YouTube, Instagram, TikTok, LinkedIn, Vimeo, most LMSs, and editors like Premiere, Final Cut and DaVinci.
Up to 99.8% on clear audio, with proper punctuation and casing. The timeline editor makes fixing brand names and jargon quick.
Video files up to 8 GB are supported — from 15-second clips to full-length webinars.
Yes. Pick one of six styles — Clean box, Bold outline, Classic yellow, Minimal, Word highlight or Single word — choose where captions sit and how words appear, and see it on your own video. Then export an MP4 with the captions burned in, or SRT/VTT files if your platform styles them for you.
Yes — caption your first video free, no credit card required.
Discover more
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