Fitter Playground — web data for AI agents

Builder<br>JSON

This config uses features the builder can’t express (plugins, file fields,<br>first_of, browser connectors, …). It stays fully editable — and runnable — on the JSON tab.

discard it and start a fresh config in the builder

Source

Fetch URL<br>Static value<br>Int sequence

parse as

json<br>HTML<br>xpath<br>XML<br>pdf

GETPOSTPUTDELETE

…'>

start<br>end<br>step

Model

Single object<br>Array of items

items: named fields<br>items: single value

+ add field<br>path syntax follows “parse as”: gjson for json/pdf, CSS selectors for HTML, XPath for xpath/XML

Limits

+ host rate limit<br>max parallel requests per host (host_request_limiter)

Run

Result

Engine loading — the fitter Go binary is compiled to WebAssembly (~7 MB gzipped), first load takes a moment…