# Video Subtitle Add Add hardcoded subtitles to videos using SRT, ASS, or VTT subtitle files with customizable font styling > Canonical page: https://elysiatools.com/en/tools/video-subtitle-add - **Category:** Media - **Keywords:** video, subtitle, captions, srt, ass, vtt, subtitles, embed, burn-in ## 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. ## Inputs - **Video File** (file): Select the video file to add subtitles to - **Subtitle File** (file): Select subtitle file (SRT, ASS, SSA, or VTT) - **Font Size (pixels)** (range): Font size for subtitles (8-72 pixels, ignored for ASS/SSA files) - **Font Name** (text): Font family name (ignored for ASS/SSA files with embedded fonts) - **Font Color** (color): Font color in hex format (ignored for ASS/SSA files) - **Align to Bottom** (checkbox): Align subtitles to bottom of screen (uncheck for top alignment) - **Bottom Margin (pixels)** (range): Distance from bottom edge (0-200 pixels) - **Output Format** (select) ## 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. ## Frequently asked questions ### 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. ## Related tools - [Batch Video Watermark](https://elysiatools.com/en/tools/video-batch-watermark): Add text watermark to multiple video files with customizable position, font size, color, opacity, and timing - [ASS to SRT Converter](https://elysiatools.com/en/tools/video-subtitle-ass-to-srt): Convert ASS/SSA subtitle files to SRT format - [Video Subtitle Embed](https://elysiatools.com/en/tools/video-subtitle-embed): Embed subtitle files as soft subtitles in videos (switchable subtitle tracks, not burned into video) - [SRT to ASS Converter](https://elysiatools.com/en/tools/video-subtitle-srt-to-ass): Convert SRT subtitle files to ASS/SSA format with customizable font styling - [Video Watermark Text](https://elysiatools.com/en/tools/video-watermark-text): Add text watermark to videos with customizable position, font size, color, opacity, and timing - [Audio to Text Transcriber (AI)](https://elysiatools.com/en/tools/audio-to-text-transcriber): Transcribe speech from audio (wav/mp3/m4a/flac/ogg/webm/aac) to text, SRT, VTT or JSON using the grok-stt AI model. Up to 10 minutes. - [Animated WebP/APNG to MP4](https://elysiatools.com/en/tools/animated-webp-apng-to-mp4): Convert animated WebP or APNG images to MP4 video format using ImageMagick or FFmpeg command line tools - [Data URI Generator](https://elysiatools.com/en/tools/data-uri-generator): Convert files into Data URIs (Base64 or percent-encoded) for inlining images, fonts, and assets directly into HTML, CSS, or Markdown ## Samples - [SVG Samples](https://elysiatools.com/en/samples/svg-samples): Scalable Vector Graphics (SVG) samples demonstrating various SVG features and techniques - [QR Code Samples](https://elysiatools.com/en/samples/qrcode-samples): Sample QR code images for testing QR code reading and generation tools - [WebRTC Real-Time Communication Samples](https://elysiatools.com/en/samples/webrtc-samples): Comprehensive WebRTC samples for peer-to-peer audio/video communication, data channels, screen sharing, and signaling server implementation - [Duplicate Line Samples](https://elysiatools.com/en/samples/text-duplicate-line-samples): Sample files with various types of duplicate lines for testing duplicate removal tools ## Related content - [Subtitle Conversion, Embedding, and Localization Workflow](https://elysiatools.com/en/hubs/subtitle-conversion-localization-workflows): Move from source video or subtitle files to translated, converted, embedded, or burned-in subtitles ready for review and distribution.