Free Online Batch Runner: Run Any Calculator Over a CSV
First line: the input ids as a header. Every following line: one calculation.
What the Batch Runner does
Every calculator on this site is a small, honest machine: type numbers into labeled boxes, press the button, read the results. The Batch Runner automates exactly that. It loads any tool from this site invisibly inside the page, types each row of your pasted data into the real input boxes, presses the real compute button, and collects the real results, once per row. Nothing is reimplemented and nothing can drift out of step with the tool itself: whatever the calculator would have told you by hand, the runner captures at scale.
How to use it
Point it at a tool address, press the load button, and the runner lists every labeled input the tool exposes. Build your paste with those ids as the first line, one calculation per line beneath, and run. The runner finds the tools main compute button on its own, following the same convention every calculator here uses, and it captures every result panel the tool displays. If you want only specific outputs, or the tool has several buttons, the two optional boxes let you name the exact button id and output ids.
A concrete example
The preloaded example drives the coordinate converter: the header names its two inputs, and three rows carry Ottawa, London, and Sydney. Run it and three sets of zone, easting, and northing appear in the results table within a couple of seconds, ready to download as CSV with your inputs and outputs side by side. Swap the address and header for any other tool, a bearing capacity check over fifty footing sizes, a mud weight sweep, a sensitivity ladder for a volumetric estimate, and the pattern is identical.
Honest limits
The runner works with tools on this site only, because the browser rightly forbids reaching into pages from other origins. It suits calculators that compute from labeled boxes at a single press; tools built around drawing, file parsing, or multi step interaction deserve their own workflow. Two hundred rows is the polite ceiling per run, and everything happens inside your browser: your data never leaves the page.
Related Calculators and Reference
- Coordinate Converter: the preloaded example target.
- Excavation Cut and Fill Calculator: a natural target for a sweep of levels.
- Report Studio: assemble batch findings into a document.
- Demo Valley Worked Project: data worth running in bulk.
- MDN Web Docs: the web platform features that make this possible.