free · in-browser · no upload
Drop your DOT file. We'll convert it to PNG right here in your browser, your file never leaves your device.
Select your file here to get started
or drop your file here.
Accepts .dot, .gv, .graphviz, .txt
How it works
Click the dropzone above or drag a DOT from your desktop. Files of any size, there's no upload, so there's no upload limit.
The conversion runs entirely in this tab using JavaScript and WebAssembly. Your file never touches our servers, we don't have any.
Get your PNG the moment the conversion finishes. Convert another, or close the tab.
Your file is never uploaded. The entire conversion runs in your browser using WebAssembly. We can't see what you convert because we have no server to see it.
Server converters cap free users at 1-2 GB and gate larger files behind a paid plan. Since nothing uploads, our limit is whatever your browser can handle.
No account required. No watermark on the output. No queue. Drop a file, get a converted file.
Why convert DOT → PNG
Same Graphviz rendering as dot-to-svg, but rasterised to PNG for embed targets that only accept bitmaps (Slack message previews, Notion image blocks, legacy CMS image-only widgets). For docs sites and anywhere SVG works, prefer dot-to-svg, the output is smaller and stays sharp on retina screens.
You want to share a quick state-machine diagram in a Slack thread. Convert to PNG here, drag into the channel, instant inline preview.
The PNG is fuzzy when printed at full size.
PNG output is rasterised at the SVG's native pixel dimensions. For high-DPI printing use dot-to-svg and print from a vector tool (Inkscape, Illustrator), or open the SVG in your browser and use the browser's print-to-PDF.
Formats involved
DOT is a file format we support converting. Detailed format information is being added, for now, drop your file in the converter above and you'll get the conversion you came for.
How to open
Most operating systems open this format with a default application; if not, search for a free reader/viewer for the format.
PNG is a lossless image format, the file size is larger than JPG, but every pixel is preserved exactly. It supports full transparency (alpha channel), which JPG cannot. Created in 1996 specifically as a patent-free replacement for GIF, PNG is the standard for screenshots, logos, icons, UI graphics, and any image that needs sharp text or transparent backgrounds.
How to open
Universal support, every OS, browser, and image editor reads PNG. macOS Preview, Windows Photos, and any web browser open PNGs without any conversion step.
You may also need
Related tools
FAQ
Yes. No signup, no watermark, no daily file count limit. Every conversion runs in your browser, your file never touches our servers because there are no servers.
Nowhere. The conversion runs entirely in your browser using JavaScript and WebAssembly. Your file is never uploaded to our servers. We don't have any servers handling files, there's nothing for us to log, store, or accidentally leak.
Whatever your browser can hold in memory. Practically, this means a few hundred MB on most computers, significantly larger than the 1-2 GB caps that server-upload converters charge for. Very large files (multi-GB) may require closing other browser tabs first.
File interchange. Screenshots, logos, UI graphics, and any image needing transparency. The most common reason to convert is compatibility, PNG works in places where DOT doesn't, or vice versa.
Most operating systems open this format with a default application; if not, search for a free reader/viewer for the format.
Once the page is loaded, the conversion itself runs entirely offline. The first time you use a tool, your browser downloads the conversion library (a one-time cache). If you reload while offline, the page won't load, but you can install the site as a Progressive Web App for full offline use.
Single file at a time for now. Batch conversion is on the roadmap, for now, drop one file, download the result, then convert the next.
