offline file converter | cnvrt.tools

Welcome to cnvrt.tools! 🎉

This is an offline file converter - your files never leave your device!

Drag & drop or click to select files
Configure output formats in settings ⚙️
Convert multiple files (mixed types supported) at once
Supports images, videos, and audio.
Droplet mode for quick specific conversions via URLs (/png, /mp4, /mp3, etc).

Settings

Output Format:

Resize Width (px, optional):

Resize Height (px, optional):

Maintain Aspect Ratio

Resize Method:

Quality: 100%

Chroma Subsampling:

Compression Level: 0

Number of Colors:

Enable Dithering

Encoding Effort: 4

Icon Sizes:

16x16 32x32 48x48 64x64 128x128 256x256

Output Format:

Quality Preset:

Bitrate: 5 Mbps

Resolution:

Width (px):

Height (px):

Maintain Aspect Ratio

Frame Rate (FPS):

15 FPS

Enable Dithering

Resolution:

Width (px):

Height (px):

Maintain Aspect Ratio

Drag and drop your files here

or

Converting to:
Image: PNG
Video: MP4
Audio: MP3

This is a client-side media conversion service. No files are uploaded to any server - all processing happens directly in your browser.

This is provided as-is without any guarantee, but is non-destructive by nature (original files will remain unchanged). Enjoy!

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