MacroKit logomacrokitmacrokit.app
Local session · 0 bytes uploaded

Convert
media without
the cloud.

Video, audio and images — processed entirely in your browser. Nothing is uploaded, there's no account, and there's no limit on file size.

7Tools
0 BUploaded
100%On device
VIDEO.MP4
AUDIO.WAV
IMG.PNG
output.mp4
on your device
UPLINK · MONITOR
UPLOADED0.00 KB
CONVERTSPLITMERGEEXTRACT AUDIOCROPCOMPRESSNO UPLOADSCONVERTSPLITMERGEEXTRACT AUDIOCROPCOMPRESSNO UPLOADS
The position

No cloud.
No upload.
No catch.

Private by physics

Files are read into local memory and processed on your device. No server to leak — because nothing is sent to one.

Instant by default

No upload bar, no render queue. Work begins the moment you drop a file and finishes at your machine's speed.

Yours, fully

No accounts, no watermarks, no size ceilings. Open a tool, do the work, close the tab.

The signal path

Inside the machine

Your file runs the whole pipeline locally — decoded, processed and re-encoded on your device. The only thing that ever leaves is the file you choose to save.

Drop

file → memory

Decode

demux

Process

ffmpeg-wasm

Encode

mux

Save

→ your disk
FAQ

Before you trust it

Are my files uploaded?+
No. Every tool runs in your browser via WebAssembly. Your files are read into local memory and processed on your device — they never leave it, not even to our servers.
Is it free?+
Yes. The tools are free with no account, no watermarks, and no file-size limits.
How large a file can I process?+
There's no upload, so the only limit is your device's available memory. Large files process as fast as your hardware allows.
Does it work offline?+
Once a tool has loaded, you can disconnect and keep working. No connection is needed to process files.

Drop a file. That's the setup.

No installs, no sign-up, no uploads — just pick a tool and start.

Accent