free · in-browser · no upload
Drop your HAR file. We'll convert it to CURL right here in your browser, your file never leaves your device.
Select your file here to get started
or drop your file here.
Accepts .har, .json
How it works
Click the dropzone above or drag a HAR 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 CURL 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 HAR → curl
HAR is what every browser DevTools (Chrome, Firefox, Safari, Edge) exports when you save a captured Network tab. To reproduce a failing API call against a different environment, replay a sequence in a bash script, or paste a captured request into Postman, you need it as curl commands. This emits one properly POSIX-quoted curl per HAR entry, ready to run.
You are debugging why an API call works in your browser but not from your server. Capture the working request as HAR (DevTools → Network → right-click → "Save all as HAR with content"), convert here, run the curl against your dev environment.
Some requests are missing from the output.
HAR entries without a "request.url" field are skipped (rare, but happens for some failed-to-start requests). All entries with a URL are included.
Formats involved
HAR 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.
CURL 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.
You may also need
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. File interchange. The most common reason to convert is compatibility, CURL works in places where HAR 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.
