ToolbitImage Converter and Compressor
Convert a screenshot to WebP, resize an asset, or squeeze a JPEG down before committing it. Everything runs on a canvas in your tab, so the image never leaves your machine.
What the Image Converter does
- Convert between PNG, JPEG, and WebP.
- Resize by pixel dimensions or by percentage with aspect ratio locked.
- Adjustable quality with a live before-and-after file size.
- Batch several images in one pass.
How to use it
- Drop one or more images onto the panel.
- Choose the output format, dimensions, and quality.
- Download the converted files.
Why it runs locally
Toolbit has no backend. The Image Converter is implemented with standard browser APIs, so your input is processed in the tab and never uploaded, logged, or retained. That is what makes it safe to paste real data into — and it is also why the tool keeps working with the network disconnected, once you have installed Toolbit as an app.
Frequently asked questions
- Are my images uploaded to a server?
- No. Conversion uses the browser's canvas and codec support. The image bytes never leave your device — which is the whole point compared to a typical online converter.
- Does converting strip EXIF data?
- Yes. Re-encoding through canvas drops EXIF metadata, including GPS coordinates — usually a privacy win.
- Is there a file size limit?
- Only your browser's memory. There is no upload cap because there is no upload.