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Filewillow

About Filewillow

Filewillow is a small collection of practical browser tools for everyday text, image, and document tasks.

Our audience is international English-speaking users who need simple utilities without creating an account. We prioritize clear instructions, honest limitations, and local processing for the first set of tools.

What we believe

  • Utility first; monetization second.
  • Every published tool must work and explain what it does.
  • Privacy claims must match actual behavior.
  • Guides should answer real questions, not fill page count.

Open-source software and licences

The tools are built on open-source libraries that run in your browser: pdf-lib (MIT), pdf.js (Apache-2.0), fflate (MIT), uqr (MIT) and exifr (MIT).

The HEIC to JPG tool uses libheif (through the libheif-js package), a HEIC/HEIF decoder compiled to WebAssembly and licensed under the GNU Lesser General Public License v3.0. The decoder is loaded as a separate file only when that tool is used. Its source code is available from the libheif project and the libheif-js project. If you want to use a modified version of the decoder, you can; ask us through the contact form and we will help.

Ownership

This site is operated by the publisher of Filewillow. For privacy requests or corrections, use the contact form or email support@filewillow.com.

Learn more in How we work and our Editorial policy.