Image Converter – Free Online Image Tool

Image Converter is a free online image tool from Toolinza. Convert between JPG, PNG and WebP formats. It runs entirely in your browser — your data is never uploaded — needs no signup, and works on any device. Toolinza offers 274+ free tools used by people across the UK, USA, Canada, Australia, the EU, India, Pakistan, the Middle East and worldwide.

About the Image Converter

Different jobs need different image formats — JPG for photos, PNG for transparency and crisp graphics, WebP for the smallest web files. Converting between them lets you use the right format for each situation.

This Image Converter switches between JPG, PNG and WebP in your browser, with nothing uploaded, so you can optimise images for any use.

How to use the Image Converter

Add your image by dragging it in or browsing.
Choose the output format (JPG, PNG or WebP).
Convert it on your device.
Download the converted image.

Key features of the Image Converter

Converts between JPG, PNG and WebP
Pick the right format for each use
WebP for the smallest web files
PNG for transparency
Runs locally — images are never uploaded

How the Image Converter works

This tool processes your pictures using the browser's built-in Canvas API and standard image codecs for JPG, PNG and WebP. Resizing, cropping, conversion and compression all happen on your own device, so the image data is never sent to a server. Compression balances file size against visual quality using established lossy and lossless techniques appropriate to each format.

Tips & best practices

Use WebP for the web where a smaller file at the same quality matters most.
Choose PNG when you need transparency or crisp edges on graphics, logos and screenshots.
Converting a photo to PNG will not improve quality but will increase file size, so use JPG or WebP for photos.

Standards & accuracy

Uses the browser's native Canvas API and standard web image formats (JPG, PNG, WebP) — images are never uploaded.

For the best results, resize an image to the dimensions you actually display before compressing, and choose WebP for the web where a smaller file at the same quality is the priority.

Who uses the Image Converter?

Converting photos to WebP for faster sites
Turning a JPG into a PNG for transparency
Standardising a batch to one format
Preparing images for a specific platform

Privacy & security

The Image Converter runs entirely inside your web browser. Your data — whether that is a file, figures or text — is processed on your own device and is never uploaded to a server, stored or shared. There is no signup and no account, so you can use it as often as you like while keeping full control of your information. This makes it a safe choice even for confidential and sensitive work.

Why choose Toolinza?

100% free — no hidden charges, watermarks or usage caps.
Private & secure — your data stays on your device.
Standards-compliant — accurate results suitable for the UK, USA, Canada, Australia, EU, India, Pakistan, the Middle East and worldwide.
Works everywhere — desktop, tablet and mobile.

Frequently asked questions

JPG for photographs, PNG for transparency and crisp graphics, and WebP for the smallest web files at good quality. The converter switches between all three.

WebP usually gives smaller files at the same quality, making it excellent for the web. JPG remains widely compatible for photos.

No. Conversion runs in your browser, so your images never leave your device.

Yes. The Image Converter is completely free with no signup, no watermarks and no usage limits. Toolinza is supported by unobtrusive advertising so every tool stays free.

Absolutely. This tool runs entirely in your browser — your data and files are never uploaded to any server, so everything stays private on your own device.

No. The Image Converter works instantly in any modern web browser on desktop, tablet and mobile — Windows, macOS, Linux, Android and iOS.