Key Facts
- Category
- Images, Audio & Video
- Input Types
- file, range, text, color, checkbox, select
- Output Type
- file
- Sample Coverage
- 4
- API Ready
- Yes
Overview
Easily burn hardcoded subtitles directly into your video files using SRT, ASS, SSA, or VTT subtitle files. This online tool lets you customize the font size, font family, color, and vertical alignment to ensure your captions are perfectly legible and permanently embedded in your output video format of choice, including MP4, WebM, MKV, AVI, or MOV.
When to Use
- •When you need to burn permanent, hardcoded subtitles into a video to ensure they display on all media players and social platforms without requiring external subtitle files.
- •When you want to customize the appearance of SRT or VTT subtitles by adjusting the font size, font family, color, and bottom margin alignment.
- •When preparing video content for platforms that do not reliably support soft subtitles or closed caption toggles.
How It Works
- •Upload your video file and select your corresponding subtitle file in SRT, ASS, SSA, or VTT format.
- •Customize the subtitle appearance by setting the font name, size, color, and adjusting the bottom margin alignment.
- •Choose your preferred output video format (such as MP4, WebM, MKV, AVI, or MOV) and process the video to burn in the subtitles.
Use Cases
Burning SRT subtitles into an MP4 promotional video for social media to ensure captions are visible even when muted.
Embedding stylized ASS subtitles into an anime or foreign language film with pre-configured typesetting.
Adjusting the font size and bottom margin of VTT captions on a lecture video to prevent them from overlapping critical on-screen graphics.
Examples
1. Burning Social Media Video Captions
Social Media Manager- Background
- A social media manager has a 1-minute MP4 marketing video and an SRT subtitle file. They need to ensure the captions are permanently visible on platforms where videos autoplay on mute.
- Problem
- The default subtitles are too small and need to be hardcoded in a specific brand color to stand out.
- How to Use
- Upload the MP4 video and the SRT subtitle file. Set the font size to 28 pixels, font name to 'Arial', and font color to '#FF5733'. Keep bottom alignment checked and set the bottom margin to 30 pixels. Select MP4 as the output format and generate the video.
- Example Config
-
videoFile: promo.mp4, subtitleFile: captions.srt, fontSize: 28, fontName: 'Arial', fontColor: '#FF5733', bottomAlignment: true, marginBottom: 30, outputFormat: 'mp4' - Outcome
- An MP4 video with highly visible, orange-colored hardcoded subtitles positioned perfectly at the bottom.
2. Embedding Stylized ASS Subtitles for a Short Film
Independent Filmmaker- Background
- A filmmaker has completed a short film in MOV format and has a highly customized ASS subtitle file containing specific fonts and positioning.
- Problem
- They need to burn these stylized subtitles directly into the video without losing the custom ASS formatting.
- How to Use
- Upload the MOV video file and the ASS subtitle file. Since ASS files contain embedded styling, the font size, name, and color options will be ignored automatically. Select MKV as the output format and process the file.
- Example Config
-
videoFile: short_film.mov, subtitleFile: stylized_subs.ass, outputFormat: 'mkv' - Outcome
- An MKV video file with the complex ASS subtitle styles and positioning perfectly burned into the video track.
Try with Samples
video, text, fileWebRTC Real-Time Communication Samples
Comprehensive WebRTC samples for peer-to-peer audio/video communication, data channels, screen sharing, and signaling server implementation
preferred input family video,text
Duplicate Line Samples
Sample files with various types of duplicate lines for testing duplicate removal tools
preferred input family video,text
Special Characters Samples
Sample text files with various special characters, punctuation, and symbols for testing non-alphanumeric character removal
preferred input family video,text
Code Comment Samples
Sample code files with various comment styles for testing comment removal
preferred input family video,text
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FAQ
What subtitle file formats are supported?
The tool supports SRT, ASS, SSA, and VTT subtitle files.
Will the custom font settings apply to ASS or SSA files?
No, custom font size, name, and color settings are ignored for ASS/SSA files, as those formats contain their own embedded styling.
Can I change the position of the subtitles?
Yes, you can toggle bottom alignment and adjust the bottom margin from 0 to 200 pixels to position your subtitles.
What video formats can I export?
You can export your subtitled video as MP4, WebM, MKV, AVI, or MOV.
Are the subtitles permanently burned into the video?
Yes, this tool creates hardcoded subtitles, meaning they are permanently merged into the video frames and cannot be turned off.