Online Captioning Tool
Upload any video and get accurate, synced captions as a burned-in MP4, SRT file, VTT file, or plain transcript - no account required and no monthly fee. Built for creators, educators, and businesses who need reliable captions without committing to a subscription.
Drop your file here
MP4 · MOV · MP3 · WAV · WebM · MKV and more
5 free minutes · no account needed · no watermark
How to online captioning tool
- 1
Upload your video
Drag your video file onto the CentClip upload area or click to browse. Common formats including MP4 and MOV are accepted. No account is needed to start - your first 5 minutes of captioning are completely free.
- 2
Select your spoken language
Pick the language spoken in your video from more than 50 supported options before processing begins. CentClip's AI transcription engine analyzes the audio track and generates time-coded captions aligned to each word. No manual syncing or timeline adjustments are required.
- 3
Download your captions or captioned video
Once processing is complete, choose your output: an MP4 with captions permanently burned into the frame, an SRT or VTT subtitle file ready to upload to YouTube, Vimeo, or any platform that accepts standard caption formats, or a plain text transcript. All formats are available from the same job.
Why choose CentClip?
Captions stay in sync even on fast or dense speech
Many free captioning tools lose timestamp accuracy on quick speakers or back-to-back dialogue, forcing manual timeline corrections before you can publish. CentClip uses a modern ASR model trained on real-world audio that keeps caption timing tight across a wide range of speaking styles and accents. For most clear recordings, accuracy exceeds 95% straight out of the tool. That means you spend minutes reviewing rather than hours re-syncing.
Pay 5 cents per minute - nothing more when you are not captioning
Captioning subscriptions charge a flat monthly fee whether you process one video or fifty, which makes them expensive for anyone with an irregular workload. CentClip charges 5 cents per minute of video with no subscription and no credits that reset at the end of the month. A 20-minute conference recording costs $1.00. A slow month where you caption nothing costs nothing. Credits you buy today are still valid a year from now.
One upload, every format your distribution requires
Different platforms and workflows need different caption formats - YouTube and Vimeo want SRT or VTT sidecar files, social clips need captions burned into the frame, and content repurposers need a clean plain text transcript. CentClip produces all of these from a single upload so you are never running the same video through multiple tools to hit different delivery specs. Switching between output formats takes a single click after processing is done.
FAQ
How accurate are the captions this tool generates?
CentClip uses a state-of-the-art ASR model that typically achieves over 95% accuracy on clear single-speaker recordings. Accuracy varies with background noise, heavy accents, or overlapping speakers - a quick pass through the caption editor handles any edge cases.
Is there a free trial, and what does it cost after that?
Your first 5 minutes of captioning are free with no account or credit card required. After that, CentClip charges 5 cents per minute with no subscription - buy credits when you need them and they never expire.
What video formats and output types does the online captioning tool support?
CentClip accepts all common video formats including MP4 and MOV. Outputs include a burned-in MP4, SRT and VTT subtitle files for platform uploads, and a plain text transcript - all available from the same processed job.
Do my credits expire if I do not use them right away?
No. CentClip credits never expire. Buy a block when you have a project and use the remainder weeks or months later - there is no deadline, no monthly minimum, and no subscription to cancel.