Instafill

Instafill is an AI-powered form filler that reads every field in a PDF or Word document, identifies what each field asks for, and fills it with information already provided elsewhere. The tool is designed for users who need to accelerate form completion and reduce manual data entry, including professionals handling complex paperwork. It operates in a browser and emphasizes security, with data handling and processing performed within defined sessions and regions.

Instafill processes forms by loading the complete field inventory, mapping source content to relevant form pages, and handling dependencies and conditional logic to avoid filling fields that shouldn’t be populated. It aims to transform how forms are completed by automating data extraction and field population while allowing user review and corrections before final submission.

The system supports parallel group filling, table and list extraction for repeating fields, and text overflow resolution to fit field limits. It provides confidence scoring for fields and a review interface that highlights uncertain values, aiming to speed up the verification step rather than replace human review.

Instafill also offers features like style replication to match user voice in generated text, and a per-field explanation capability to show source passages and reasoning behind filled values. The platform highlights security, privacy, and auditability as core aspects of its design.

Use cases

• Immigration law: automation of multiple USCIS forms per client matter.
• Legal: client intake and complaint PDFs from unstructured data.
• Healthcare: credentialing forms across multiple databases.