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Image converter — PNG, JPEG, WebP, AVIF

Image tools

Convert between PNG, JPEG, WebP and AVIF.

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Quick start

How to convert image formats in your browser

Drop an image, pick a target format, download the converted file. Nothing uploads.

  1. Step 1
    Drop image

    Any format your browser displays — PNG, JPEG, WebP, AVIF, GIF, BMP, ICO, SVG.

  2. Step 2
    Pick target

    WebP for modern web, AVIF for cutting-edge production, JPEG for universal compatibility, PNG for lossless.

  3. Step 3
    Download

    Result appears with a size comparison. Click Download to save with the correct extension.

In-depth guide

Image format converter — PNG, JPEG, WebP, AVIF

Convert images between PNG, JPEG, WebP and AVIF in your browser. Useful for shrinking old JPEGs to WebP, rasterising an SVG to PNG, or migrating a folder of PNGs to AVIF for production. Decodes anything your browser displays, re-encodes via canvas.

Format cheat sheet

FormatTransparencyCompressionBest for
PNGYesLosslessGraphics, screenshots, logos
JPEGNoLossyPhotographs
WebPYesLossy or losslessModern web default
AVIFYesLossyCutting-edge production where every byte counts

Which to pick

  • Need transparency + small file → WebP (universal) or AVIF (smaller but spottier support).
  • Photograph for web → WebP at quality 80.
  • Pixel-perfect graphic → PNG.
  • Email attachment → JPEG quality 70 (best universal support; small).
  • Archive → keep PNG or original.

Browser support notes

  • WebP — universal since 2020 (Chrome, Firefox, Safari, Edge).
  • AVIF decoding — Chrome 85+, Firefox 93+, Safari 16+ (macOS only initially).
  • AVIF encoding via canvas — Chrome / Edge / Firefox 113+ yes; Safari no.
  • If AVIF encoding fails the tool falls back to PNG and shows a warning.

Converting image formats

When to reach for it. Use it to switch between PNG, JPEG, WebP and friends to balance quality against file size.

When something else is better. Some conversions are lossy and some formats drop transparency, animation or metadata — keep the original.

The pitfall to watch. Re-saving a JPEG as JPEG compounds compression artefacts; convert from the highest-quality source you have.

Your file stays in your browser. The document or image you choose is read with the browser’s local file APIs and processed in the tab (or a Web Worker). EpitomeTool does not upload the file bytes, the file name, or the result — nothing leaves your device, so there is no “wait for upload” step and nothing to delete from a server afterwards.

Frequently asked questions

Does this tool upload my image anywhere?

No. The browser decodes the source, redraws on a hidden canvas, and re-encodes locally. The download is a Blob URL.

Which formats can I read in?

Anything your browser can display — PNG, JPEG, WebP, GIF, AVIF, BMP, ICO, SVG. SVG converts to raster on the way out.

Which formats can I output to?

PNG, JPEG and WebP work in every modern browser. AVIF encoding is supported in Chrome 85+, Edge, Firefox 113+. Safari can decode AVIF but as of late 2024 doesn't encode it via canvas.

What's the difference between WebP and AVIF?

Both modern, both replace JPEG / PNG. WebP is universally supported and saves 25-35% vs JPEG. AVIF is newer, often 30-50% smaller than WebP, but encoding support in browsers is uneven.

Does it preserve transparency?

PNG, WebP, AVIF do. JPEG flattens onto a white background (canvas default — chosen over black for visual consistency).

What about ICC profiles and metadata?

Stripped on conversion. If you need colour-managed output, edit in a proper tool. Same for EXIF — use the exif-viewer tool to inspect before converting.

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