# Image Converter

> Convert images between PNG, JPG, WebP and AVIF without uploading them anywhere.

To convert an image, drop one or more files above, choose the output format and download the result. Conversion uses your browser's built-in image encoder, so files are never uploaded, there is no size limit, and batches of images convert in one go.

**URL:** https://convertto.tech/t/image-converter
**Category:** Image Tools (https://convertto.tech/c/image-tools)
**Privacy:** Runs entirely in the browser; no upload
**Cost:** Free, no sign-up
**Last updated:** 2026-08-01

## Key facts

- **Privacy:** Runs entirely in your browser — nothing is uploaded
- **Cost:** Free, unlimited, no sign-up

## How to use

1. Select your images — the file stays on your device and is never uploaded.
2. Choose the convert to.
3. Set the quality.
4. Pick the background for transparency.
5. Press Run, then download the result when it is ready.

## FAQ

### Why can I not export to GIF or BMP?

Browsers can decode those formats but cannot write them — the canvas encoder only supports PNG, JPG, WebP and AVIF. The tool tells you rather than silently handing back a mislabelled PNG.

### Which format should I choose?

WebP is the best default: roughly 25–35% smaller than JPG at the same quality, with transparency support and universal browser coverage. Use PNG when you need lossless quality, and AVIF when the smallest file matters more than older Safari support.

### What happens to transparency when converting to JPG?

JPG has no alpha channel, so transparent areas are flattened onto the background colour you pick — white by default.

## Related tools

- [AVIF Converter](https://convertto.tech/t/avif-converter): Convert images to and from AVIF in your browser, with a real encoder check so you never get a PNG renamed to .avif.
- [Image to PDF Converter](https://convertto.tech/t/images-to-pdf): Combine JPG, PNG or WebP images into a single PDF document.
- [PDF to Image Converter](https://convertto.tech/t/pdf-to-images): Convert PDF pages into PNG or JPG images at any resolution.
- [Sample Image Generator](https://convertto.tech/t/sample-image-generator): Generate test images at any aspect ratio, resolution, pattern, quality or exact file size.
- [Paste Image and Download](https://convertto.tech/t/paste-image-to-png): Press Ctrl+V to paste a screenshot or copied image, then download it as a real file. Nothing is uploaded.
- [PDF to WebP Converter](https://convertto.tech/t/pdf-to-webp): Convert PDF pages into WebP — roughly 30% smaller than JPG at the same quality.
- [PDF to JPG Converter](https://convertto.tech/t/pdf-to-jpg): Convert PDF pages into JPG images at any resolution, in your browser.
- [PDF to PNG Converter](https://convertto.tech/t/pdf-to-png): Convert PDF pages into crisp lossless PNG images.
- [Video to WebP Animation](https://convertto.tech/t/video-to-webp): Turn a short video clip into an animated WebP — far smaller than a GIF.