Merge SRT with MP4
Combine SRT subtitle files with MP4 video. Download a single file with embedded subtitles — no quality loss, no watermark.
Drop your file here
or click to browse
Subtitle: SRT, VTT, ASS, TXT, CSV · Video: MP4, MKV, WebM, MOV · Audio: MP3, WAV, AAC, FLAC · Free, no sign-up
How to use this tool
Three easy steps. No sign-up needed for your first file.
Upload MP4 video
Drop your video file. Supports MP4, MKV, MOV, WebM up to 500 MB.
Upload SRT file
Attach your timed SRT subtitle file. Also accepts VTT, ASS, TXT.
Download merged file
Get your MP4 with embedded subtitles. Compatible with every video player.
Frequently asked questions
What's the difference between soft and hard subtitles?
Will this work on my phone?
Does merging reduce quality?
Can I merge multiple subtitle files?
Related free tools
Add Subtitles to Video
Add subtitles to any video — free and with zero watermarks. Unlike Veed and Kapwing, we never brand your content. Upload video + SRT, download captioned video.
Try free →Audio Noise Remover
Remove background noise from audio and video files. FFT-based denoising eliminates fan hum, AC noise, street sounds, and static. Free, no sign-up.
Try free →Burn Subtitles into MP4
Hardcode SRT, VTT, or ASS subtitles directly into your MP4 video. No re-encoding step needed. Powered by FFmpeg — same engine used by Netflix.
Try free →Change Video Resolution
Resize video resolution online — 4K to 1080p, 1080p to 720p, or any custom dimensions. Free, no watermark, no sign-up.
Try free →Compress Video
Compress video files online without losing noticeable quality. Reduce MP4, MKV, MOV by up to 85%. Free, no watermark, no sign-up.
Try free →Compress Video for Discord
Compress any video to fit Discord's 10 MB file limit. No quality guessing — we target exact file size with smart bitrate adjustment.
Try free →Ready to use Merge SRT with MP4?
First file free — no sign-up. Create a free account to unlock all features, larger files, and 5 free credits.