windows app

Convert 3GP to MP4

Convert 3GP files to MP4 videos locally on Windows. No upload, no signup, no watermark.

offlinewindows 10 & 11free

Get it onMicrosoft Storecoming soon to the Microsoft Store

3gpmp4

features

what the app does

Paste from clipboard — Ctrl+V joins the queue (e.g. a Win+Shift+S screenshot lands without saving to disk).
Batch convert whole folders, sub-folder structure preserved.
Auto-convert watcher — point the app at a watched folder; converted files appear in your output folder.
Right-click .3gp files in File Explorer — "Convert to MP4" opens the app pre-loaded with your selection.
Ten UI languages, light + dark themes following the system.
Offline by design — no telemetry, no account, no user-data exfiltration.

details

3GP to MP4 on your pc

Convert 3gp to mp4 on Windows with a local app made for quick, private file conversion.

how it works

3GP to MP4 conversion runs on your Windows PC with ffmpeg.wasm. Your files stay on your device while the app turns them into MP4 videos.

paste from clipboard

Press Ctrl+V to add a copied file straight to the queue. For example, copy a .3gp clip in File Explorer, then paste it into the app and start the conversion.

batch conversion

Process a whole folder in one run, including nested subfolders. A folder with 200 files in 10 subfolders keeps the same structure in the output.

auto-convert watcher

Set a watched folder and an output folder in the Auto-convert page. Leave the app in the Windows system tray, drop new files into the watched folder, and the converted videos appear in the output folder.

right-click in explorer

Use the File Explorer context menu for .3gp files. Choose Convert to MP4, and the app opens with your selection already loaded.

languages & themes

The UI is available in ten languages. Light and dark themes follow your Windows theme automatically.

offline by design

No telemetry, no account, and no upload. The files never leave your device.

free & pro

The free version lets you convert 3GP to MP4 with no file size or file count limits. Upgrade to Pro with a one-time lifetime purchase to remove ads and unlock batch conversion. No subscriptions or recurring payments.