MKV to MP4 Converter
Convert MKV to MP4 online for free — no signup, no watermark, instant download.
Drag & drop files here
or click to browse
Max 100MB per file · Up to 10 files
About this tool
Free MKV to MP4 Converter — No Signup, No Watermark
FlipFileZone lets you convert MKV videos to MP4 entirely in your browser — no software to install, no account required, and no watermark on the output. The converter runs on our servers so even low-powered devices can handle large files. Your files are automatically deleted after download, keeping your data private.
How to use — step by step
Upload your MKV video
Click the upload area or drag and drop your MKV file. You can add multiple files at once for batch conversion.
MP4 is pre-selected
The converter automatically selects MP4 as the output format. Switch to any other format using the dropdown if needed.
Click Convert
Hit the Convert button. Your video is processed securely on our servers in seconds.
Download your file
Download your MP4 file immediately once conversion is complete. Files are deleted from our servers right after.
Other formats you can convert MKV to
Features
Fast conversion
Convert MKV to MP4 in seconds — server-side processing, no waiting.
No signup required
Start converting immediately. No account, no email address, no credit card.
No watermark
Your MP4 output files are clean — we never add branding or watermarks.
Private & secure
Files are transferred over HTTPS and automatically deleted after download.
Batch conversion
Upload and convert multiple files at the same time — download them all as a ZIP.
Works on any device
Runs in any modern browser on Windows, Mac, Linux, iOS and Android.
Frequently asked questions
Is the MKV to MP4 converter free?
Yes — FlipFileZone is 100% free with no account required, no credits, and no hidden charges.
Is there a file size limit for MKV to MP4 conversion?
There is no hard file size limit. Very large files may take slightly longer depending on your internet speed.
Can I convert multiple MKV files to MP4 at once?
Yes. Drop multiple MKV files into the converter and they will all be converted simultaneously. You can then download everything as a single ZIP.
Does the MKV to MP4 conversion affect quality?
You can set the output resolution and bitrate before converting.
Are my files kept private?
Your files are uploaded over an encrypted HTTPS connection and automatically deleted from our servers after you download them. We do not store, analyse or share your files.