MKV to MP4 converter
Turn your MKV into a clean, ready-to-use MP4 in a couple of clicks – no software to install, nothing to sign up for.
Convert MKV to MP4
Drop your files to try StandardsPDF. This tool is available in the full workspace.
Keeps the video stream and audio track in sync
Lets you pick a quality preset to balance size and clarity
Works in any modern browser – desktop, tablet or phone
Free to try with no account and no watermark
How it works
Convert MKV to MP4 in 3 steps
Upload or drag in your MKV file
Choose your output options if you need them
Download the finished MP4
Private by default
Files are encrypted in transit and deleted within 60 minutes.
Fast
Most jobs finish in under 10 seconds. No queueing.
No signup on free tier
5 documents per day, no credit card required.
FAQ
Frequently asked questions
How do I convert MKV to MP4?+
Upload your MKV file (or drag it onto the box above), wait a few seconds while StandardsPDF converts it in your browser, then download the MP4. There is nothing to install and no account required.
Is converting MKV to MP4 free?+
Yes. MKV to MP4 conversion is free on the StandardsPDF free tier – no watermark, no signup, and no credit card. A Pro tier lifts the file-size and daily limits if you need more.
Will the MP4 keep the quality of my MKV?+
StandardsPDF aims for the highest fidelity the MP4 format allows, so your video comes through looking as close to the original as possible. Some format-specific details may adapt where MP4 works differently to MKV.
Will the audio from my MKV stay in sync in the MP4?+
Yes – when converting MKV to MP4 the audio track is muxed back with the video so playback stays perfectly in sync.
How long does a MKV to MP4 conversion take?+
Most MKV files convert to MP4 in a few seconds. Larger or higher-resolution files take a little longer, but there is never a queue on the free tier.
Is my MKV file kept private during MKV to MP4 conversion?+
Yes. Your MKV is processed in an isolated worker, never shared, and permanently deleted from our servers within 60 minutes. Most MKV to MP4 conversions happen right in your browser.
Do I need to install anything to convert MKV to MP4?+
No. Converting MKV to MP4 runs entirely in the browser – no desktop software, no extensions and no account for the free tier.
What is the maximum MKV file size I can convert to MP4?+
Up to 100 MB per MKV on the free tier and 2 GB on Pro. If your MKV is larger, split it first or upgrade for the higher limit.