rediagram .app

Free tool · no sign-up

Open a VSDX file without Visio

Drop a Microsoft Visio file here to read it in your browser — then put it on your brand in one paste. No install, no Microsoft 365 account, no sign-up.

Drop a Visio file here

.dgm · .vsdx · .tldraw · .drawio · .excalidraw · .mermaid
up to 8 MB · nothing is stored

A screenshot works too — PNG, JPEG or WebP, read by a model rather than parsed. On the paid plans.

Needs an account
Sign in to draw it

Free account · converting a file needs none

Your file is read once to draw the diagram and is never stored. Converting turns on anonymous usage analytics — we never send your file, its contents or your brand URL. What we measure

Then put it on your brand

Viewing is free. If the diagram is going into a client deck, convert it: same content in your own colours and type, exported as SVG, PNG, or editable PowerPoint — real shapes and live text, not a picture of a diagram you cannot fix a typo in.

Go to the converter →

Reading these regularly? The VSDX viewer →

Questions people actually ask

Why will my .vsdx file not open?
Because .vsdx is Microsoft Visio's own format and Visio is a separate paid product — it is not part of a normal Office install, so Word, Excel and Preview all decline it. Dropping the file above reads it without installing anything.
Can I open it on a Mac, iPad or Android?
Yes. The file is read on our server and handed back as a drawing, so anything with a browser can display it. This matters most on macOS, where Microsoft has never shipped a Visio desktop app at all.
Is it safe to put a client's file in here?
The file is parsed in memory and dropped when the response is sent. Nothing is written to disk, no account is created, and no upload history exists to leak later.
What about an older .vsd file?
Not supported. .vsd is the pre-2013 binary format; this reads .vsdx, which is Visio 2013 and later. Opening the .vsd in Visio once and saving it as .vsdx is the only reliable route.