Compress, convert and resize images without uploading them

Free tools that run entirely in your browser. Nothing leaves your device, there’s nothing to install, and there’s no sign-up.

Choose images or drop them here JPG, PNG, WebP or GIF · paste with Ctrl+V works too Your images stay on your device

Quality 75%

Lower means a smaller file.

Target size (KB)

Leave empty to use the quality slider.

Output format

Resize

Width × height (px)

Scale (%)

Compress

Make images smaller by quality or to an exact size in KB.

Convert

Change between JPG, PNG, WebP, AVIF, ICO and BMP, or save frames from a video.

Resize

Change pixel dimensions, crop to exact sizes, or resize in bulk.

Why use a tool that runs in your browser?

Most online image tools upload your photos to a server, wait in a queue and send the result back. Tech9Pros works differently. Your browser does the work on your own device, so nothing is uploaded, nothing is stored and there is no account to create. It also means large batches finish quickly, because there is no upload or download to wait for.

What can you do here?

Make photos smaller with the JPEG compressor, or hit an exact limit such as 50KB or 200KB.
Switch formats with the JPG to PNG converter, PNG to JPG or WebP to JPG.
Make a favicon or Windows icon with the PNG to ICO converter, or save frames from a video with WebM to JPG.
Set exact pixel sizes with the image resizer, or resize images in bulk.

Every tool page explains what the settings do and answers the questions people ask most. If you are not sure where to begin, start with the full list of image tools.