pdf2fill
Fill any PDF in browser. Free, no account, nothing stored.
4 followers
Fill any PDF in browser. Free, no account, nothing stored.
4 followers
I built pdf2fill because every time I needed to fill out a W-9 or a rental application, the existing tools either wanted me to create an account, pay for a subscription, or upload my documents to their servers. pdf2fill allows you to upload a PDF, the tool detects the form fields automatically, you fill them in, and download the result. It takes about 60 seconds. Your file never leaves your browser. It's processed and gone when you close the tab. No account, no watermark, no subscription.
I built this because I was tired of creating an account just to fill out a single PDF.
The field detection is the interesting part. Flat government PDFs are often just text and lines drawn on a page with no field objects at all, so the engine reads the geometry instead: underscore runs, drawn rules, small squares and their nesting, comb cells, and checkboxes that are font glyphs rather than shapes. That last case broke my contour detector for weeks.
I test it against 23 real documents (W-9, W-4, TD1, IR330, the HMRC starter checklist, bank direct-deposit forms, medical intake forms, a US court form, a French cerfa, leases) with every field annotated by hand.
Would love feedback on what to build next. OCR for scanned forms is the most requested thing so far.