Send form-urlencoded with cURL in PowerShell
Paste a curl command that sends form-urlencoded and get idiomatic PowerShell code. We pick the right serialization for Invoke-RestMethod and set the correct Content-Type.
Quick answer
To convert a cURL command to PowerShell, paste it into the Toolpaper workbench below. It parses the command in your browser and emits idiomatic PowerShell code — headers, query string, request body, authentication (Bearer, Basic, API key), and cookies are all wired up automatically. No data is uploaded; conversion is fully client-side.
Prefer a different target? See the full cURL to PowerShell reference, or jump to the same guide in JavaScript, Node.js, or Python.
$body = "username=ada&password=lovelace"
$response = Invoke-RestMethod `
-Uri "https://api.example.com/login" `
-Method "POST" `
-ContentType "application/x-www-form-urlencoded" `
-Body $body `
-MaximumRedirection 0
$response | ConvertTo-Json -Depth 10Example
A representative curl command for this scenario. Paste your own above to convert an exact match.
curl -X POST https://api.example.com/login \
-H "Content-Type: application/x-www-form-urlencoded" \
-d "username=ada&password=lovelace"Implementation notes
- Content-Type is detected from -H headers first, then inferred from the body shape when the header is missing.
- application/x-www-form-urlencoded bodies are decoded into structured pairs so Invoke-RestMethod owns the encoding — you never double-encode a value.
- Charset directives on Content-Type (e.g. application/json; charset=utf-8) survive the round trip.
Common mistakes
- Setting Content-Type manually and then also using Invoke-RestMethod's helper — you end up with duplicate headers or the wrong one wins.
- Mixing form encoding with JSON headers — the server rejects with 400 and it's easy to miss in code review.
- Trusting the browser DevTools "Copy as cURL" to preserve charset — it often drops it. Clean panel restores common defaults.
Common questions
- How is form-urlencoded encoded in the generated PowerShell?
- application/x-www-form-urlencoded bodies map to the right primitive in each language — data= in Python, url.Values in Go, FormUrlEncodedContent in C#.
- Does it preserve Content-Type?
- Yes. The Content-Type header is honored and matched against the body so serialization stays consistent.
- Is anything uploaded?
- No. Parsing and generation happen entirely in your browser.
More payload types in PowerShell
PowerShell hub →The same guide in other languages
All guides →In JavaScript
/how-to/send-form-with-curl-in-javascript
In Node.js
/how-to/send-form-with-curl-in-node
In Python
/how-to/send-form-with-curl-in-python
In Go
/how-to/send-form-with-curl-in-go
In PHP
/how-to/send-form-with-curl-in-php
In Ruby
/how-to/send-form-with-curl-in-ruby
In Rust
/how-to/send-form-with-curl-in-rust
In Java
/how-to/send-form-with-curl-in-java
Full PowerShell reference on the cURL to PowerShell hub, or open the main converter for all 18 targets.