About Convaduit

Convaduit is a free collection of online tools for working with images and PDFs. We believe online tools should be fast, private, and respectful of your data — so we built Convaduit to run entirely in your browser.

Our mission

Most "free" online tools require you to upload your files to a server you don't control. That's a privacy risk, especially for sensitive documents like contracts, medical records, or personal photos. We wanted to prove that you can build powerful online tools without ever touching a user's file.

Every tool on Convaduit runs locally in your browser using modern web standards like WebAssembly, the Canvas API, and the File System Access API. Your files are processed on your device and never sent over the network. The only network requests we make are for the page itself and for ads that help us keep the site free.

How it works

Each tool is built with industry-standard open-source libraries:

browser-image-compression for image compression
heic2any (which wraps libheif) for HEIC to JPG conversion
pdf-lib for PDF merging, splitting, and creation
pdfjs-dist (Mozilla's PDF.js) for reading PDFs
file-saver for triggering browser downloads

These libraries run as JavaScript (or WebAssembly) directly in your browser tab. When you drag a file into one of our tools, your browser reads it from disk, processes it, and offers the result back to you as a download — all without a single network request containing your file.

Private

Files never leave your browser. We have no server that receives them.

Free

No sign-up, no watermarks, no limits. Supported by unobtrusive ads.

Open standards

Built on proven open-source libraries like pdf-lib and PDF.js.

Contact

Found a bug or have a tool request? Email us at support@convaduit.com. We'd love to hear from you.