Privacy-first DeftPDF alternative with browser-based PDF tools. Merge, compress, sign, edit and protect PDFs free, with no signup and private processing.
Why use this
You want platform-specific how-to guides, not just a tool: PDFWix ships dozens of platform-specific guides (sign a PDF on Mac, compress a PDF on iPhone, unlock a PDF on Windows) that walk through the native workflow first and only recommend the tool when…
You want honest comparisons against competitors: The page you're reading is one of ten honest competitor breakdowns we publish — including this one against DeftPDF. We tell you when a competitor is genuinely the right pick. Most tools (DeftPDF…
You want a modern UI and rendering engine: PDFWix is built on current React, modern PDF rendering libraries, and is mobile-responsive. DeftPDF works fine on desktop but the mobile experience and large-file rendering are noticeably slower.
You're a developer who needs an API: PDFWix has a paid developer API (the thing that funds the free consumer app). DeftPDF doesn't expose an API.
You want browser-side processing as the default: Most PDFWix tools run in your browser tab — file bytes never reach our servers. DeftPDF processes server-side.
Frequently asked questions
Is PDFWix really better than DeftPDF, or are they basically the same?
They're closer to each other than either is to a paid suite. The honest differences: PDFWix has a more modern UI, browser-side processing as default, deeper how-to content, and a developer API. DeftPDF has a longer track record and a donation funding model. If DeftPDF works for you, keep using it — we're not…
Why would I switch from DeftPDF to PDFWix?
Three reasons people actually cite: (1) PDFWix runs most tools in-browser so files never upload, (2) the platform-specific how-to content (sign on Mac, compress on iPhone, etc.) is more thorough, (3) the mobile experience is faster.
Is PDFWix more private than DeftPDF?
Yes for the browser-side tools — file bytes stay in your laptop. DeftPDF processes server-side. For the few PDFWix tools that go to a server (the encryption-related ones), the posture is similar to DeftPDF's.