browser-native · no upload · works offline
Drop any file.
Leave with the format you need.
Every conversion runs in your tab — HEIC via libheif WebAssembly, TIFF scans and Office docs via pure-JS engines, images through the browser’s own pipeline, PDFs via pdf.js, audio through the Web Audio API and video through the native codec stack. Drop several files and convert them in one pass — or combine them into a single PDF. No upload endpoint, no shared render fleet, no telemetry. First visit caches the engines, so reloads work offline.
processed locally
works offline after first load
23 input formats
batch + ZIP
Supports
HEIC
JPG
PNG
WebP
AVIF
GIF
SVG (bitmap embedded)
BMP
ICO
TIFF (multi-page supported)
DOCX (renders to PDF)
PDF (single or all pages)
MP3
WAV
OGG
FLAC
AAC
M4A
MP4
MOV
WebM (browser-supported codecs only)
MKV
AVI
Private by design
This page runs entirely in your browser. Files are read, converted and saved on your own device using WebAssembly and the browser’s native codecs — nothing is uploaded, there is no account, and your bytes never leave your machine. Not even we can see them.