Add Subtitles to Your Videos
Paste your script and generate a clean, timed subtitle overlay as a green-screen MP4. Drop it into any video editor and key out the background in seconds.
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How it works
- • Choose a caption style from the dropdown (with preview images): Style 1 shows full phrases at once; Style 2 & 3 show a blue highlight moving word-by-word.
- • Paste your script. Captions are timed at ~150 words per minute (normal speaking speed).
- • Green screen background for easy chroma keying in your editor.
- • Video is generated in your browser with FFmpeg — nothing is uploaded.
- • Download as MP4 and use as a caption or overlay layer.
Generate Subtitles in Seconds
Turn your script into a subtitle video layer without typing captions by hand. Paste your text, choose a style, and export a clean MP4 you can overlay anywhere. Captions are timed at about 150 words per minute to match natural speech, and everything runs right in your browser with no account needed.
Export Once, Use Everywhere
Create one caption layer and reuse it across social media posts, shorts, and presentations. The green-screen output works smoothly in tools like CapCut, Premiere, and Final Cut.
Escape Tedious Transcription
Skip the repetitive caption work. The generator renders your full script at a steady 150 WPM, so you can save editing time instead of aligning text frame by frame.
Strictly Local & Private
Your script stays on your device. FFmpeg runs in the browser through WebAssembly, so nothing is uploaded to a remote server.
Empower Your Video Editing Workflow
Elevate Social Media Outputs
Keep viewers engaged on TikTok, Instagram Reels, and YouTube Shorts with clear, readable captions. It turns plain text into visual subtitles quickly, while also improving accessibility.
Stand Out Consistently
Built-in caption tools are often limited or inconsistent. Using a dedicated overlay gives you a consistent look and style that better matches your brand.
Full Control, No Guesswork
Auto-transcription can miss technical terms, names, or accents. By pasting your script directly, you stay in control and avoid avoidable caption mistakes.
Complementary Editing Tactics
Add the MP4 as a top layer in your normal editing workflow. Use Chroma Key in Premiere Pro, Final Cut, or similar tools for clean, professional results.
Generate Subtitle Overlays in 4 Easy Steps
Select Style
Choose between full-phrase captions or moving word highlights based on your editing style.
Prepare Text
Paste your transcript into the text box. Timing is automatically set to about 150 WPM.
Launch Engine
Click Generate. Your browser processes everything locally, so there is no server wait time.
Deploy Freely
Download the MP4 and drop it into your timeline, then remove the green background with Chroma Key.
Frequently Asked Questions
Q:Is this tool definitively free to operate?
Yes. There are no paywalls, watermarks, or subscriptions. Generate as many caption videos as you need.
Q:Does the system guess words via my microphone?
No. The tool does not listen to your microphone. You paste your script, and it animates those exact words at a readable pace.
Q:How do I implement the resultant file into my main footage?
The output is an MP4 with a green background. Put it on a track above your footage and apply Chroma Key using `#00B140` to make the background transparent.
Q:Can this directly output standard SRT or VTT metadata files?
No. This tool creates visual caption overlays inside a video file, not subtitle metadata files. If you need SRT or VTT, you will need a subtitle export tool.
Q:Are my transcripts securely safe from interception?
Yes. Processing happens locally in your browser using WebAssembly, and your transcript is not sent to cloud servers.