Fillable vs FormRouter

Fillable is a web and API service for turning PDFs into guided client workflows. It detects fields, accepts document uploads, supports signatures, and creates shareable completion links that clients can use without an account or app. Browser tools can fill, create, sign, merge, split, compress, convert, and OCR PDFs. Guided packs collect completed forms and requested documents; the free plan includes one active pack, all library templates and official forms, and a test API key. Teams can import existing PDFs, apply field validation and conditional logic, and export PDF or JSON. The REST API parses PDF fields and text into JSON and fills existing form fields. Each key allows 100 requests per calendar day, counting authenticated calls that succeed or return errors. It does not create PDFs from HTML, convert file formats, or add fields to flat PDFs. Core tools run in the browser; server-side conversions upload files and delete them afterward. Paid monthly plans start at $9/mo.

FormRouter.NET hosts online forms and collects submissions for organizations to retrieve without programming. Its Simple Form Builder creates HTML forms, and the service supports PDF, HTML5, Excel, ASP, and ASP.NET forms. A PDF viewer converts forms to HTML5 for filling, signing, and submission on PCs, Macs, iPads, iPhones, and Android devices. Accounts include tools for managing forms, alerts, files, and reports; alerts can be triggered when a form is submitted. Responses can be downloaded or sent to destinations such as SharePoint, Access, Excel, SQL Server, OpenOffice Calc, ODBC databases, Salesforce, SugarCRM, text, and XML. FormRouter says submissions are encrypted and routed to its server, where designated users can retrieve aggregated results according to permissions. An optional account upgrade adds secure email alerts using 128-bit encryption. An ASP.NET utility allows forms to be hosted on a customer's server while using FormRouter for data capture. The service also offers form development, training, technical support, and consulting.