About LocalKit
LocalKit is a collection of simple file tools built around one rule: your files should stay on your device.
Our Mission
LocalKit helps people resize, convert, compress, and reorganise files without sending private images or documents to a server. Most online tools upload your files before processing them. LocalKit does the work in your browser instead — the file is read into the page, processed, and saved back to your device, and nothing is transmitted in between.
What LocalKit Includes
There are tools for the everyday image and PDF jobs people get stuck on:
How It Works
The image tools use the browser Canvas API to decode, resize, and re-encode pictures, while the PDF tools use the pdf-lib library to rebuild documents — all inside the page. The image resizer, for example, decodes the selected image locally, draws it to a canvas at the target size, and exports the result straight from the browser tab. Heavier formats such as HEIC are handled by a WebAssembly module that also runs locally. No step relies on a server.
Free and Account-Free
Every tool is free to use, with no sign-up, no watermark, and no limit on how many files you process. LocalKit is kept deliberately small and fast, so each tool loads quickly and does one job well rather than burying it under features you do not need.
Privacy Promise
LocalKit does not upload your files for processing, does not require an account, and does not store your files. You can confirm it yourself: open your browser network panel while you work and you will see no upload. If a future tool ever needs to behave differently, the page will say so clearly before you use it.