What is Image Converter?
This image converter runs entirely in your browser. Click the upload area to pick any image (accept="image/*") and the original appears on the left. Choose a target format — PNG, JPG, or WebP (default PNG) — from the dropdown, click Convert, and a Canvas redraw produces the new-format image with a download button (auto-named converted.png/jpg/webp). The whole pipeline stays in your browser; images are never uploaded. Great for optimizing web images, shrinking file size, and meeting platform format requirements.
▶Use Cases5 scenarios
- ◆Optimizing web images with WebP
- ◆Converting PNG to JPG to reduce size
- ◆Converting JPG to PNG when transparency matters
- ◆Meeting platform upload format rules
- ◆Testing one image before batch workflows
▶How to Use5 steps
- 1Click the upload area to pick an image
- 2Preview the original on the left
- 3Choose PNG, JPG, or WebP as the target
- 4Click Convert
- 5Click Download to save the result
▶Features8 features
- ✓Free
- ✓No signup
- ✓PNG/JPG/WebP conversion
- ✓Instant preview after upload
- ✓Canvas-based local conversion
- ✓Auto-named downloads
- ✓No hard file size limit
- ✓Images never leave your device
▶FAQ7 questions
What is the image converter?
An online image format tool. Input: an image file of any format. Output: a downloadable PNG, JPG, or WebP version. Used for web optimization and platform compatibility. Runs locally — images are not uploaded.
Which target formats are supported?
PNG, JPG, and WebP, with PNG as the default.
Does conversion lose quality?
PNG is lossless; JPG and WebP are lossy. WebP typically produces smaller files at equal visual quality.
Is there a file size limit?
No hard limit — conversion runs on the browser's local Canvas, so very large images depend on device memory.
Does it support batch conversion?
The current version converts one image at a time.
Are my images uploaded?
No. Files are processed locally via FileReader and Canvas with no network requests.
What is the output filename?
Downloads are auto-named converted.png, converted.jpg, or converted.webp matching the chosen format.