Resize MP4
Resize MP4 files for any platform in seconds. OpusClip's AI-powered video resizer automatically crops, reframes, and adjusts your footage to fit TikTok, Instagram Reels, YouTube Shorts, LinkedIn, and more. Upload your MP4, choose your target aspect ratio, and get perfectly framed vertical, square, or horizontal videos without manual editing. No complex software. No quality loss. Just fast, smart resizing that keeps your subject in frame across every format.
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Three Reasons Why OpusClip is Best
One-Click MP4 Resizing
Upload any MP4 and instantly resize to 9:16, 1:1, 16:9, or 4:5. AI detects your subject and keeps it centered, so you never crop out key content.
Smart Auto-Reframing
OpusClip tracks speakers and action across every frame. Your resized MP4 stays focused on what matters, even when the original video is landscape or ultra-wide.
Multi-Platform Export
Resize once, export everywhere. Get MP4 files optimized for TikTok, Reels, Shorts, LinkedIn, Twitter, and Facebook in a single workflow.
One-Click MP4 Resizing
Upload any MP4 and instantly resize to 9:16, 1:1, 16:9, or 4:5. AI detects your subject and keeps it centered, so you never crop out key content.
One-Click MP4 Resizing
Upload any MP4 and instantly resize to 9:16, 1:1, 16:9, or 4:5. AI detects your subject and keeps it centered, so you never crop out key content.
Smart Auto-Reframing
OpusClip tracks speakers and action across every frame. Your resized MP4 stays focused on what matters, even when the original video is landscape or ultra-wide.
Smart Auto-Reframing
OpusClip tracks speakers and action across every frame. Your resized MP4 stays focused on what matters, even when the original video is landscape or ultra-wide.
Multi-Platform Export
Resize once, export everywhere. Get MP4 files optimized for TikTok, Reels, Shorts, LinkedIn, Twitter, and Facebook in a single workflow.
Multi-Platform Export
Resize once, export everywhere. Get MP4 files optimized for TikTok, Reels, Shorts, LinkedIn, Twitter, and Facebook in a single workflow.
Why OpusClip Wins
OpusClip resizes MP4 files intelligently. Upload your video, select your target dimensions, and let AI handle the rest. The resizer tracks faces, text, and motion to keep your subject perfectly framed in every aspect ratio. Export publication-ready MP4s in minutes, not hours, and maintain full resolution across all formats.
How it Works
Upload or paste a link
Upload your MP4 file to OpusClip's dashboard and navigate to the Reframe tool.
Auto-clip & caption
Select your target aspect ratio: 9:16 for TikTok and Reels, 1:1 for Instagram feed, 16:9 for YouTube, or 4:5 for Facebook.
Reframe for every platform
Let AI auto-detect and track your subject, or manually adjust the crop area if you need precise framing.
Export & publish anywhere
Preview your resized video, then export your MP4 ready to publish on any platform.
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Explore OpusClip Features for Resizing and Reformatting MP4 Videos
Smart Crop Options
Automatically center or manually adjust framing when changing your MP4 aspect ratio.
Aspect Ratio Presets
Choose from 16:9, 9:16, 1:1, and 4:5 formats to fit any platform instantly.
Batch MP4 Processing
Resize multiple MP4 files simultaneously to save time on large video projects.
Instant MP4 Resizing
Upload your MP4 and resize it to any dimension in seconds without quality loss.
Quality Preservation
Maintain original video clarity and sharpness while resizing to smaller or larger dimensions.
Preview Before Export
See exactly how your resized MP4 will look before downloading the final file.
Platform-Ready Exports
Resize MP4 files to meet YouTube, Instagram, TikTok, and LinkedIn specifications automatically.
Custom Dimension Control
Set exact width and height values to match your specific display requirements perfectly.
What people are saying
"OpusClip makes creating social media content easy. This is such a huge time saver to get high quality content and traffic driven to your full content. Very easy to implement the clips that are generated. Just download the clip you want and go. Easy to integrate into whatever platform you want."
Liam D.
"I am thrilled with OpusClip, an innovative AI tool that saves me a lot of time and effort in creating short videos for various platforms. With OpusClip, I can easily upload a long video or enter a YouTube link, and the tool automatically generates several exciting and professional clips that I can use for YouTube Shorts, Instagram Reels, or TikTok. The clips have animated subtitles that match the spoken text and that I can customize to my liking. Additionally, OpusClip shows me a virality score for each clip, which helps me select the best clips. OpusClip is very easy to use and has an intuitive user interface. I can recommend it to anyone who wants to improve their reach and engagement on social media. OpusClip is a great AI video tool that is worth the money."
Micah J.
"I conduct and record 15-20 minute interviews for podcasts and video. Opus Clip is a great time saver in identifying the best parts for Social media and SEO. The AI component identifies areas for SEO that I had overlooked. The UI is pretty good, the icons could be a more indicative of their function, but that will come. It's a big time saver for me."
Tariq N.
Frequently Asked Questions
How do I resize an MP4 video for TikTok and Instagram Reels?
Upload your MP4 to OpusClip, open the Reframe tool, and select 9:16 vertical aspect ratio. The AI automatically tracks your subject and keeps it centered as it crops your landscape or square footage into a vertical format. Preview the result, adjust if needed, and export a publication-ready MP4 optimized for TikTok, Reels, and YouTube Shorts in under two minutes.
Can I resize MP4 files to multiple aspect ratios at once?
Yes. OpusClip lets you batch-resize a single MP4 into 9:16, 1:1, 16:9, and 4:5 simultaneously. Upload once, select all target ratios, and the AI generates separate exports for each platform. This eliminates repetitive manual cropping and ensures you have every format ready to publish without re-uploading or re-editing your original video file.
Does resizing an MP4 reduce video quality?
No. OpusClip maintains your original MP4 resolution and bitrate during the resize process. The AI reframes and crops your footage without re-encoding at lower quality, so your exported videos stay sharp and clear. Whether you're resizing 1080p or 4K MP4 files, you get full-resolution output ready for professional publishing on any social platform.
What if the AI crops out important content when resizing my MP4?
OpusClip's auto-reframe tool tracks faces, speakers, and on-screen text by default, but you can manually adjust the crop area if the AI misses something. Use the preview mode to scrub through your resized MP4 frame by frame, then drag the crop box to reposition your subject. This gives you full control while still saving hours compared to manual keyframe editing in desktop software.
Frequently Asked Questions
What languages does your video transcription tool support?
Our AI free video transcription technology supports over 20 languages, including English, Spanish, French, German, Japanese, and more. The system automatically detects the spoken language or allows you to specify it before processing. This makes transcribing multilingual video content simple and accurate.
Can I edit my video transcription after it's generated?
Yes, our platform includes a built-in editor for your free video transcription. You can correct any inaccuracies, format text, and add speaker labels directly in the interface. The editor synchronizes with timestamps, making it easy to perfect your transcript before exporting it for use.
What makes AI video transcription faster than manual methods?
AI video transcription processes speech in minutes rather than hours of manual typing. Our advanced algorithms recognize speech patterns across different accents and languages, providing time-stamped text with speaker identification. This technology lets you transcribe a 60-minute video in just a few minutes.
How much does it cost to transcribe a video?
Video transcription costs vary based on video length and features needed. Our platform offers a free trial transcription so you can experience the quality before committing. After that, we provide affordable pricing plans for regular video transcription needs with multi-language support and speaker detection.
How can I transcribe a video?
Upload your video file or paste a link to our AI free video transcription tool. The system automatically converts speech to text with over 95% accuracy. Once complete, you can download your transcript in various formats like TXT, SRT, or VTT for captions, blog posts, or other content.
How accurate are AI YouTube video transcription tools?
AI YouTube video transcript extractors typically achieve 95%+ accuracy for clear audio in English, with strong performance in over 50 other languages. For best results, videos with clear audio and minimal background noise produce the most accurate transcripts, though you can edit any errors afterward.
What formats can I download YouTube video transcripts in?
YouTube video transcript generators typically allow you to download transcripts in multiple formats including TXT (plain text), SRT (SubRip Subtitle), and VTT (Web Video Text Tracks) files. These different formats support various use cases from content creation to adding captions to videos.
Can I transcribe someone else's YouTube video?
Yes, you can transcribe anyone's public YouTube video using a YouTube video transcript generator. Simply copy the video URL, paste it into the transcription tool, and the AI will extract the spoken content into text format. This is useful for research, content repurposing, or accessibility purposes.
How to get a YouTube video transcript from any video?
To get a YouTube video transcript, copy the video URL and paste it into a transcript generator tool. Click "Generate Transcript" and the AI will process the audio, delivering a complete text version in under a minute. You can then edit, format, and download the transcript in your preferred format.
Does YouTube have auto transcription?
Yes, YouTube offers auto transcription for many videos, but these transcripts often contain errors. For more accurate results, use a dedicated YouTube video transcript generator that employs advanced AI to deliver 95%+ accuracy, proper formatting, and additional features like timestamp integration and multiple export formats.
Can I get a transcript of a YouTube video?
Yes, you can get a transcript of any YouTube video by using an AI-powered YouTube video transcript extractor. Simply paste the video URL into the tool, and it will automatically convert the spoken content into text format with high accuracy, allowing you to download the transcript in seconds.
