Convert MKV to AVI in Seconds

MKV giving you grief on older software or hardware? Profi PDF flips it to AVI instantly — no installs, no accounts, totally free.

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1.5M users
13,529 reviews

How It Works

MKV to AVI Converter — Convert MKV Video Files to AVI Online Free | Profi PDF
1
Drop Your MKV In. Drag your MKV file straight into Profi PDF or click to browse. Movies, recordings, rips — whatever you have got, we take it.
2
Profi PDF Does the Heavy Lifting. Our engine converts your MKV to a clean AVI file in seconds. High quality, fast, zero fuss.
3
Grab Your AVI. Download your AVI and you are done. Plays on Windows Media Player, VLC, older TVs, editing software — no more "format not supported" nonsense.

Your Complete Audio & Video Toolkit

Transcribe, convert, extract — everything audio & video, handled in one place.

AI Transcription

Speech to text with speaker labels, timestamps, and 95%+ accuracy.

Format Conversion

MP3, WAV, M4A, OGG, FLAC — convert any audio or video format instantly.

Video to Audio

Extract audio from MP4, YouTube, Zoom recordings, and more.

Lightning Fast

Most files processed in under three minutes. No waiting around.

No Signup
Start instantly
100% Secure
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Browser-Based
No installs

People Love These Tools

Podcasters, researchers, marketers, and remote teams use our audio & video tools every day.

Feb 13
Finally works on my old editing rig
My ancient video editor flat-out refused MKV files. Profi PDF converted them to AVI and now everything just works. Wish I found this sooner, honestly.
Tyler NovakInstagram logo
Tyler Novak
Jan 29
Stupid fast, zero quality loss
Converted a 90-minute MKV to AVI and it was done in under two minutes. Quality looked identical. Profi PDF is legit the best free tool for this.
Nadia OseiInstagram logo
Nadia Osei
Feb 7
No ads, no email, just works
Every other site I tried either wanted my email or bombarded me with ads. Profi PDF just converted my file and let me download it. Clean, simple, perfect.
Sam KowalczykInstagram logo
Sam Kowalczyk
824 people converted files today
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Why People Pick Our Audio & Video Tools

Old-School Compatible

AVI is the OG video format — it works on legacy players, older hardware, and classic editing software that chokes on MKV. Profi PDF gets you there in one click.

Quality Stays Intact

Profi PDF converts your MKV to AVI without trashing the picture or audio. What you put in is what you get out — sharp, clean, no weird artifacts.

Windows-Friendly Output

AVI was built by Microsoft and plays natively on Windows. If your workflow is Windows-heavy, Profi PDF makes sure your video fits right in.

Batch It Up

Got a stack of MKV files to convert? Profi PDF lets you queue them up and knock them out back to back. No repetitive uploading, no wasted time.

Transcribe the Audio Too

Once your AVI is ready, run it through Profi PDF AI transcription to pull out subtitles, captions, or a full text transcript. One platform, full workflow.

Encrypted & Auto-Deleted

Your file is locked with encryption on upload and wiped from Profi PDF servers the second conversion is done. Zero data stored, zero risk.

Old-School Compatible

AVI is the OG video format — it works on legacy players, older hardware, and classic editing software that chokes on MKV. Profi PDF gets you there in one click.

Quality Stays Intact

Profi PDF converts your MKV to AVI without trashing the picture or audio. What you put in is what you get out — sharp, clean, no weird artifacts.

Windows-Friendly Output

AVI was built by Microsoft and plays natively on Windows. If your workflow is Windows-heavy, Profi PDF makes sure your video fits right in.

Batch It Up

Got a stack of MKV files to convert? Profi PDF lets you queue them up and knock them out back to back. No repetitive uploading, no wasted time.

Transcribe the Audio Too

Once your AVI is ready, run it through Profi PDF AI transcription to pull out subtitles, captions, or a full text transcript. One platform, full workflow.

Encrypted & Auto-Deleted

Your file is locked with encryption on upload and wiped from Profi PDF servers the second conversion is done. Zero data stored, zero risk.

MKV to AVI Online

No signup needed. Just pick a tool and go.

Convert MKV to AVI
4.6
1,340 reviews
4.5
13,920 reviews
4.6
4,550 reviews

Frequently Asked Questions

Quick answers about our audio & video transcription and conversion tools.

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MKV to AVI Converter — Convert MKV Video Files to AVI Online Free | Profi PDF - Profi PDF