Convert files directly
in your browser
Stop giving your sensitive files to cloud servers. KeptFormat uses state-of-the-art WebAssembly to process videos, images, and PDFs directly on your device.
The Local-First Advantage
Why sending files to the cloud is a thing of the past.
Absolute Privacy
Bank statements, legal PDFs, and personal photos are converted inside your browser sandbox. We literally couldn't see them even if we tried.
Lightning Fast
Why wait for a 50MB video to upload? By bypassing the network entirely, your conversion starts instantly using your device's native CPU power.
Unlimited Uses
Because we don't have to pay expensive cloud server bills to process your files, we don't put you in a queue or charge you premium fees.
Popular Converters
Video & Audio
Extract audio, convert video formats
PDF Tools
Merge, split, and manipulate PDF files
Image Tools
Convert, compress, resize, and transform images
JPG to PNG
Fast, local conversion
PNG to JPG
Fast, local conversion
JPG to WebP
Fast, local conversion
PNG to WebP
Fast, local conversion
WebP to JPG
Fast, local conversion
WebP to PNG
Fast, local conversion
JPG to AVIF
Fast, local conversion
PNG to AVIF
Fast, local conversion
AVIF to JPG
Fast, local conversion
AVIF to PNG
Fast, local conversion
HEIC to JPG
Fast, local conversion
HEIC to PNG
Fast, local conversion
HEIC to WebP
Fast, local conversion
SVG to PNG
Fast, local conversion
PSD to PNG
Fast, local conversion
Image Compressor
Free browser tool
Image Resizer
Free browser tool
Image Cropper
Free browser tool
Image Rotator
Free browser tool
Image to PDF
Free browser tool
WebP to PDF
Free browser tool
Background Remover
Free browser tool
Document & Data Tools
Convert between document and data formats