Turn spreadsheets into API requests.
Upload CSV data, map it to any API, and generate validated JSON and cURL without writing integration scripts.
No signup required • Runs in your browser
HOW IT WORKS
From spreadsheet to API in three steps
Import your API
Paste an existing cURL request or example JSON payload.
Upload your data
Import a CSV and map spreadsheet columns to API fields.
Generate
Validate your data and copy production-ready JSON or cURL.
API REQUEST BUILDER
Build your request
Start with a cURL, example payload, CSV, or manual data.
Import cURL
Paste an existing request to configure PayloadForge automatically.
Request
Headers
Target API
Paste an example payload or define the target schema.
Request Data
Each row becomes one JSON object.
[
{
"name": "Apple",
"country": "US",
"revenue": 383000,
"active": true
},
{
"name": "Sony",
"country": "Japan",
"revenue": 85000,
"active": true
},
{
"name": "Tata",
"country": "India",
"revenue": 52000,
"active": false
}
]WHY PAYLOADFORGE
Stop writing one-off scripts just to move spreadsheet data into an API.
PayloadForge handles the repetitive parts: payload structure, field mapping, types, validation and cURL generation.
Need to do this regularly?
Save API templates, mappings and environments. Import larger datasets and reuse your workflows.
Early access pricing coming soon.