The honest comparison
FillOnce is for reviewed form filling — not mass application bots, password autofill, or PDF-only signing tools.
One vault for web forms, PDFs, and Word docs. You review every match before any field is filled, and FillOnce never auto-submits. Here's how every alternative stacks up.
| Capability | FillOnce Web + PDF + Word, encrypted, never auto-submits | Chrome autofill Free, only fills simple fields | 1Password / Dashlane Passwords + cards, limited form fill | LazyApply Mass-applies to job postings on your behalf | Simplify Job-app autofill, resume / cover-letter, job tracking | Magical Snippets + lightweight autofill | pdfFiller / Adobe PDFs only, no web forms | DocuSign E-signature only, personal plans around $120–$156/year (public pricing, mid-2026) |
|---|---|---|---|---|---|---|---|---|
| Builds vault from a form you've already filled | ✓ | ✗ | ✗ | ✗ | ✗ | ✗ | ~ | ✗ |
| Fills standards-based HTML web forms Open shadow DOM and same-origin iframes supported; closed shadow / cross-origin embeds limited. Portal-specific support varies. | ✓ | ~ | ~ | ✓ | ✓ | ✓ | ✗ | ✗ |
| Fills PDFs (AcroForm; flat-PDF overlay is beta) FillOnce: AcroForm fills are reliable. Flat (non-fillable) PDFs use a text-overlay draw and are beta — preview before using. | ✓ | ✗ | ✗ | ✗ | ✗ | ✗ | ✓ | ~ |
| Fills Word documents | ✓ | ✗ | ✗ | ✗ | ✗ | ✗ | ~ | ✗ |
| Multi-person household / family profiles | ✓ | ✗ | ~ | ✗ | ✗ | ✗ | ✗ | ✗ |
| Never auto-submits (you stay in control) LazyApply explicitly auto-submits at scale (its own site advertises applying to thousands of jobs). | ✓ | ✓ | ✓ | ✗ | ✓ | ✓ | ✓ | ✓ |
| Matching runs without 3rd-party AI | ✓ | ✗ | ✓ | ✗ | ~ | ~ | ✓ | ✓ |
| E-signature included Pro/Family/Business — PNG stamp on PDF signature fields; not on Free | ~ | ✗ | ✗ | ✗ | ✗ | ✗ | ~ | ✓ |
| Free plan | ✓ | ✓ | ~ | ~ | ~ | ✓ | ~ | ✗ |
| One-click cancellation | ✓ | ✓ | ✓ | ~ | ~ | ✓ | ~ | ✗ |
✓ = yes · ~ = partial / varies by plan · ✗ = no. Competitor capabilities vary by product and plan; based on public pricing & documentation as of 2026.
Why people switch to FillOnce
Switched from
LazyApply
Won't auto-submit your name into 1,000 rejected applications. Honest accuracy beats fake outcomes.
Switched from
Simplify
Simplify focuses on job applications, resumes, cover letters, and job tracking. FillOnce covers those forms plus PDFs, Word docs, and household forms outside the job hunt, with a privacy posture you can verify.
Switched from
1Password
Fills standards-based forms, PDFs, and Word docs, not just logins and cards. Builds your vault from documents you've already filled.
Switched from
Magical
Fills standards-based web forms with multi-step pages and dependent dropdowns, not just text snippets. Open shadow DOM and same-origin iframes are supported; closed shadow and cross-origin embeds are still limited.
Switched from
pdfFiller / Adobe
Fills web forms too. One vault, one tool, one subscription that costs less than Acrobat alone.
Switched from
DocuSign
Standalone e-signature plans run around $120–$156/year (public pricing, mid-2026). FillOnce fills a form and adds your own signature at export — for filling and self-signing your documents, you don't need a separate tool. (FillOnce self-signs; it doesn't send documents to others for signature.)
Try the form-filler that does all of it
Free plan. Cancel in one click. Encrypted by default.