Hard-Coded Subtitles
CentClip permanently burns subtitles into your video so captions are always visible - no viewer needs to enable them and no player can hide them. Built for social media creators, accessibility teams, and anyone distributing video on platforms that do not support separate subtitle files.
Drop your file here
MP4 · MOV · MP3 · WAV · WebM · MKV and more
5 free minutes · no account needed · no watermark
How to hard-coded subtitles
- 1
Upload your video
Drag your video file into CentClip - no account or credit card needed for your first 5 minutes. CentClip accepts MP4, MOV, MKV, AVI, and other common formats. The file is processed in your browser session and is not stored beyond the time needed to generate your captions.
- 2
Review and edit the caption text
CentClip transcribes your audio and displays every caption line in a time-synced editor alongside its start and end timestamps. Scan through the transcript and correct any words the recognizer missed - proper nouns, brand names, and technical terms are the most common edits. Changes apply immediately before you confirm the final output.
- 3
Download your video with burned-in subtitles
Choose to hard-code the captions directly into a new MP4, which permanently embeds them into the picture so they appear on every device and player without any separate file. You can also download an SRT or VTT file if you need a sidecar option, plus a plain text transcript with no timecodes. All export types are available from the same screen.
Why choose CentClip?
Captions that cannot be turned off are the only reliable option for social video
Most people scroll social feeds with the sound off - autoplay on Facebook, Instagram, LinkedIn, and TikTok starts muted by default. Separate subtitle files are ignored in that context because the player never activates them. Hard-coding the captions into the video itself means the words are visible the moment the clip appears, regardless of device, app version, or viewer settings. Studies consistently put silent-viewing rates above 80% on mobile social feeds, which makes burned-in captions a functional requirement rather than a nicety.
One project does not need a monthly subscription
Most captioning tools charge $15 to $30 per month for a plan that resets whether you used it or not. If you have a product launch video, a conference recording, or a batch of training clips to caption this week, you are paying for eleven more months of access you do not need. CentClip charges 5 cents per minute - a 10-minute video costs 50 cents. Credits never expire, so any balance left after this job is still there the next time you need it.
Hard-coded captions work on platforms that reject or ignore subtitle files
Not every platform that accepts video also displays SRT or VTT files. Email clients, Slack, internal intranets, conference room displays, digital signage, and many LMS platforms will play your video but silently discard any sidecar subtitle file. Hard-coding the subtitles removes that dependency entirely - the captions travel with the video because they are part of the picture. CentClip supports 50-plus languages, so you can caption multilingual content and get a burned-in file that works everywhere the original video does.
FAQ
How accurate are CentClip's hard-coded subtitles?
Accuracy is highest with clear speech and minimal background noise. The built-in editor lets you review and correct every caption line before the subtitles are permanently burned into your video.
Is there a free trial for hard-coded subtitles?
Yes - CentClip gives you 5 free minutes with no account and no credit card required. After that, pricing is 5 cents per minute with no subscription and no minimum purchase.
What video formats can I use to create hard-coded subtitles?
CentClip accepts MP4, MOV, MKV, AVI, and other common video formats, and returns a burned-in MP4 ready to upload to any platform. SRT and VTT export is also available from the same session.
Do CentClip credits expire if I do not use them right away?
No - CentClip credits never expire. Buy them for this project and use any remaining balance weeks or months later, with no subscription deadline or monthly reset.