Format Factory

Private local format conversion tools for everyday files.

Image Converters Video Converters Audio Converters Document Converters

Built for private everyday conversion

Runs locally

Many conversions happen directly on this device, so you can work without uploading personal files.

Privacy first

Your selected files stay in your browser whenever a tool supports local processing.

No install

Open a converter, choose a file, and download the result from the same page.

Image tools

PNG JPG Convert PNG files to JPG locally in your browser. PNG WebP Convert PNG files to WebP locally in your browser. PNG BMP Convert PNG files to BMP locally in your browser. PNG AVIF Convert PNG files to AVIF locally in your browser. PNG ICO Convert PNG files to ICO locally in your browser. JPG PNG Convert JPG files to PNG locally in your browser. JPG WebP Convert JPG files to WebP locally in your browser. JPG BMP Convert JPG files to BMP locally in your browser.

Video tools

MP4 WebM Convert MP4 videos to WebM locally in your browser. M4V MP4 Convert M4V videos to MP4 locally in your browser. M4V WebM Convert M4V videos to WebM locally in your browser. WebM MP4 Convert WebM videos to MP4 locally in your browser.

Audio tools

MP3 WAV Convert MP3 audio files to WAV locally in your browser. MP3 M4A Convert MP3 audio files to M4A locally in your browser. MP3 AAC Convert MP3 audio files to AAC locally in your browser. MP3 OGG Convert MP3 audio files to OGG locally in your browser.

Document tools

XLSX CSV Convert the first worksheet in an XLSX file to CSV locally in your browser. CSV XLSX Convert CSV rows to a simple XLSX spreadsheet locally in your browser. Merge PDF Combine multiple PDF files into one PDF locally in your browser. TXT PDF Convert plain TXT content to a clean PDF locally in your browser.