Add Subtitles to Video Online Free
Burn SRT subtitles or create them manually with our built-in editor
No signup • No watermark • 100% Private • Completely Free
See the Result
Upload Video
MP4, WebM, MOV, AVI
Add Subtitles
Choose your preferred method
Upload SRT File
Subtitle file (.srt)
SRT Format Example
1 00:00:01,000 --> 00:00:04,000 Hello, this is the first subtitle. 2 00:00:05,500 --> 00:00:09,000 This is the second subtitle line.
Each subtitle needs: sequence number, timestamp (start → end), and text content.
Why Use Our Free Subtitle Tool?
100% Private & Secure
Your videos and subtitles never leave your device. All processing happens directly in your browser using WebAssembly.
Professional Quality
Customizable fonts, colors, and positioning. Create broadcast-quality subtitled videos.
Completely Free
No hidden costs, no subscriptions, no credit card. Use unlimited times forever.
No Signup Required
Open the tool and start immediately. No account, no email, no waiting.
How to Use
Upload Your Video File
Drag and drop or click to select your video (MP4, MOV, or WebM).
Add Subtitles
Upload an SRT file or use our manual editor to create subtitles with timestamps.
Customize & Process
Adjust font size, color, and position, then click Burn Subtitles.
Frequently Asked Questions
Is this subtitle tool really free?
Yes, completely free. No hidden fees, no subscriptions, no credit card required.
Do I need to create an account?
No. Start immediately without signup or email verification.
Are my videos uploaded to your servers?
No. All processing happens in your browser. Files never leave your device.
What subtitle format is supported?
We support SRT (SubRip) format, the most common subtitle format used by YouTube, Netflix, and other platforms.
Are the subtitles permanent or removable?
The subtitles are permanently burned into the video pixels. They cannot be turned off, making them perfect for social media sharing.
How do I create an SRT file?
You can create SRT files with text editors, subtitle software like Aegisub, or download them from YouTube Studio for your own videos.
How long does subtitle burning take?
Processing time depends on video length and size. A 5-minute video typically takes 2-3 minutes to process.
Can I create subtitles without an SRT file?
Yes! Use our manual subtitle editor to create subtitles directly in the browser. Just enter the text and timestamps for each subtitle.
💡Pro Tip: When to Use This Tool
- •Burned-in subtitles (hardcoded) cannot be turned off — ideal for sharing on platforms that don't support SRT
- •Use white text with a 2px black outline for readability on any background
- •YouTube auto-generates subtitles — download the SRT from YouTube Studio and burn them in for guaranteed accuracy
Try Our Other Free Tools
All tools are 100% free, no signup required