Convert Video to MP3 on PC Free
From any URL or local file — no cloud, no upload

Updated: June 2026 · 5 min read
Up to 320 kbps
URLs + local files
100% local — no cloud
YouTube, TikTok + 8 more
MP4, MKV, AVI → MP3
Quick answer

Grabbit converts video to MP3 in two ways: (1) From a URL — paste any YouTube, TikTok, Instagram or other platform link, switch format to Audio only, and download as MP3 (free). (2) From a local file — open the Converter tab, browse to your MP4/MKV/AVI file, select MP3 output, and convert locally on your PC (Pro). Both run 100% on your computer — no cloud upload.

Two ways to convert video to MP3 with Grabbit

Free

From a video URL

Paste any YouTube, TikTok, Instagram, Facebook, SoundCloud or other platform link into the Downloader tab. Switch format to Audio only. Click Add to Queue. Grabbit extracts the audio at up to 320 kbps and saves it as MP3 to your PC.

Pro

From a local video file

Open the Converter tab, browse to any MP4, MKV, AVI, MOV or WebM file already on your PC. Select MP3 as the output format. Click Add to Queue. Grabbit converts the file locally using FFmpeg — no upload, no file size limit.

How to convert a video URL to MP3 — step by step

Grabbit vs web video-to-MP3 converters

Grabbit (app) Web converters
Audio quality Up to 320 kbps Max 128 kbps on most sites
Local file conversion MP4/MKV/AVI → MP3 (Pro) File size limits (often 100 MB)
Ads Zero ads Pop-ups and fake buttons
Privacy 100% local, no upload Your file or URL processed on their servers
Platforms YouTube, TikTok, Instagram + 8 more Usually YouTube only

Why Grabbit for video to MP3 conversion on Windows

🎧

Up to 320 kbps quality

Grabbit extracts the original audio track and converts at up to 320 kbps. Web converters typically max out at 128 kbps and re-encode with quality loss.

📁

Local files too

Already have a video file? Open Grabbit's Converter tab to convert any local MP4, MKV, AVI, or WebM to MP3 — no file size limit, no upload. (Pro)

🔒

100% on your PC

Whether you're converting from a URL or a local file, everything runs on your computer. No audio ever passes through a third-party server.

📦

Batch conversion (Pro)

Convert multiple videos to MP3 at once. Add up to 50 links or local files to the queue and Grabbit converts them all automatically.

Frequently asked questions

How do I convert a video to MP3 on PC for free?

Install Grabbit for Windows. Paste a YouTube, TikTok, Instagram or other supported platform URL into the Downloader tab, switch format to Audio only, and click Add to Queue. Grabbit extracts the audio and saves it as MP3 at up to 320 kbps. Free plan includes 10 single downloads.

Can I convert an MP4 file I already have on my PC to MP3?

Yes, using Grabbit's Converter tab (Pro feature). Browse to any local video file — MP4, MKV, AVI, MOV, or WebM — select MP3 as the output format, and click Add to Queue. Grabbit converts it locally using FFmpeg. No upload, no file size limit. The Converter requires a Pro plan ($8.99/month or $59.99/year).

What audio quality does Grabbit produce?

For URL downloads, Grabbit extracts the original audio track and converts at up to 320 kbps — the highest quality the source provides. For local file conversion, quality depends on the source video's audio track. Grabbit uses FFmpeg locally for the conversion.

Can I convert TikTok or Instagram videos to MP3?

Yes. The Downloader tab works with YouTube, TikTok, Instagram, Facebook, SoundCloud, Twitter/X, Pinterest, Twitch, and thousands more platforms. Select Audio only format to save the audio as MP3.

Is there a file size limit for MP4 to MP3 conversion?

No. Because Grabbit's Converter processes everything locally on your PC, there is no file size restriction. Online converters typically cap at 100 MB–1 GB on free plans. Grabbit handles any size file you have on disk.

Convert Video to MP3 — Free & Pro

Windows 10/11 · URLs + local files · Up to 320 kbps · No cloud · No upload