Tool M a t i c

Image Format Converter

Convert between PNG, JPEG, and WebP — entirely in your browser. No uploads, no accounts, no ads.

Step 1 — Upload images
Drop images here
PNG, JPEG, or WebP · Up to 20 files · 25 MB each
Step 2 — Target format
WebP is supported by all modern browsers. Some older apps may need a JPEG or PNG fallback — individual downloads are always available.
Step 3 — Quality settings
80
Est. size: —EXIF stripped by default
Privacy-first — images processed in your browser
Quick presets

WebP is typically 25–35% smaller than JPEG and 50–90% smaller than PNG at equivalent quality. It's the best choice for most web images.

Related tools
Image CompressorImage ResizerBulk Image Optimizer

How to Use This Tool

  • Upload or drag-and-drop one or more PNG, JPEG, or WebP images.
  • Select the target format: PNG, JPEG, or WebP.
  • Choose a quality preset or fine-tune with the slider. "Best for web" (quality 80) is a good starting point.
  • Click "Convert images" — processing happens entirely in your browser.
  • Download individual files or all results as a ZIP archive.
Frequently Asked Questions
How do I convert PNG to WebP without losing quality?

Select your PNG file, choose WebP as the output format, then pick "Lossless" from the quality presets. Lossless WebP preserves every pixel from the original PNG — including transparency — while typically achieving 20–30% smaller file sizes.

Why does my PNG lose transparency when converting to JPEG?

JPEG is a lossy format that does not support an alpha (transparency) channel. When converting a transparent PNG to JPEG, transparent areas must be filled with a solid color. This tool detects transparency automatically and lets you choose the background fill color (default: white) before converting.

What's the difference between lossy and lossless WebP?

Lossy WebP uses compression that discards some visual data to achieve smaller file sizes — ideal for photographs. Lossless WebP preserves every pixel exactly, like PNG, but in a more compact format. Lossless mode is only available when the source image is PNG, since JPEG data is already lossy.

How much smaller is WebP compared to PNG?

WebP is typically 25–35% smaller than PNG for lossless images and up to 50% smaller for lossy compression compared to JPEG at similar visual quality. Results vary by image content — photographs compress more aggressively than graphics with flat colors.

Which image format is best for my website?

Use WebP as your primary format — it offers the best combination of quality and file size and is supported by all modern browsers. Use PNG for logos, icons, and images with transparency where lossless fidelity is required. Use JPEG for photographs when WebP is not an option. Avoid GIF for new projects.

Can I convert multiple images at once?

Yes. Drag and drop up to 20 images at a time or select them via the file picker. All files in the queue share the same output format and quality settings. After conversion, download each file individually or click "Download all as ZIP" to get them in a single archive.

Is it safe to upload my images to an online converter?

With ToolMatic, your images never leave your device during normal conversions. All processing runs entirely in your browser using the Canvas API — no image data is sent to any server. For very large files that exceed browser memory limits, the tool may offer a server-side fallback, in which case your file is deleted within 1 hour.

How do I open a WebP file on my computer?

Modern browsers (Chrome, Firefox, Edge, Safari) open WebP files natively. On Windows, open WebP images in Photos, Paint, or any browser. On macOS, Preview supports WebP. If you need maximum compatibility with older software, convert your WebP to PNG or JPEG using this tool.