MP4 Converter
Convert videos to MP4 format for universal playback and sharing across all devices. No signup, no watermarks, 100% private — everything runs in your browser.
Quick Answer
Upload your media, adjust settings, and click "Process" to get instant results. Everything runs locally in your browser — your files are never sent to any server.
MP4 Studio
Convert video files to MP4 with browser-side transcoding
Upload multiple video files, trim them, resize them, rotate them, tune bitrate, and export MP4 without sending media to a server. First load is heavier because the FFmpeg engine has to boot inside the browser.
Drop videos here or click
Supports MP4, MOV, WEBM, AVI, MKV, MPEG, MPG, 3GP, and OGV. Large files may be slow on lower-memory devices.
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Add one or more files to preview them, then convert the whole queue to MP4.
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Why Use SwiftTools MP4 Converter?
🔒 Unmatched Privacy
Your files never leave your device. Processing runs entirely in your browser.
⚡ Lightning Fast
No upload wait times. No processing queues. Instant results on your device.
💰 Completely Free
No hidden fees, no premium tiers. Unlimited usage without any restrictions.
📱 Works Everywhere
Use on any device — desktop, tablet, or phone. Any modern browser works.
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MP4 Converter: Frequently Asked Questions
Is MP4 Converter free to use?
Yes, MP4 Converter on SwiftTools is completely free with no signup, no watermarks, and no usage limits. Everything runs in your browser for maximum privacy.
Are my files kept private?
Absolutely. Your media files are processed locally in your web browser — nothing is uploaded to any server. Your files stay on your device at all times.
Do I need to install any software?
No installation required. MP4 Converter works directly in any modern web browser on Windows, Mac, Linux, iOS, or Android.