Every developer has been there. You're wiring up a new registration flow, spinning through a QA checklist, or demoing a feature to a stakeholder — and you find yourself typing the same fake name, the same throwaway email address, and the same placeholder phone number for the forty-seventh time that week. It is not a workflow problem. It is a friction tax — invisible, constant, and entirely eliminable. FillKit is a free, open-source browser extension that removes that tax entirely. One click. Every field filled. Context-aware, locale-correct, realistic data — generated locally, with no account required and no data leaving the browser. What FillKit Actually Does FillKit is a browser extension that introspects the DOM of any web page, identifies form fields by type and semantic context, and populates them with statistically plausible, structurally valid data. No manual field mapping. No schema files. No configuration ceremony.…