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Mixed image media pieces arranged toward one clean output photo proof.
🔒 Processed in your browser · no upload

Convert image format

image cat converts images between JPG, PNG and WebP locally in your browser, and turns iPhone HEIC into universal formats. Pick a target format, drop your images, convert in one click — files are never uploaded.

Drag & drop or click to select filesJPG / PNG / WebP / HEIC / AVIF / GIF / BMP supported, several at once
Your files stay in your browser; AI tools may download a model
Target format
Quality92

Higher = sharper but larger (PNG is lossless, no slider needed)

How to convert image

  1. 1Drop one or more images (JPG / PNG / WebP / HEIC / AVIF and more).
  2. 2Pick a target format (JPG / PNG / WebP).
  3. 3Click “Start”.
  4. 4Download results individually or as a ZIP.

Why use image cat's Convert Image?

  • Local conversion: images never leave your device.
  • WebP saves space: converting to WebP is usually smaller than JPG, great for faster sites.
  • Batch + ZIP download — a whole set at once.

Frequently asked questions

Input: JPG / PNG / WebP / HEIC / HEIF / AVIF / GIF / BMP and anything the browser can decode. Output: JPG, PNG, WebP (AVIF output coming later).

JPG has no transparency, so transparent areas become white. Convert to PNG or WebP to keep transparency.

Updated · image cat team

Sources, review and limits

Last verified

2026-06-17

Author

Image-Cat editorial team

Reviewer

Image-Cat tooling review

Primary sources

  • Browser image decoding, Canvas and download APIs
  • Common social, web and device image-size presets
  • User-provided images processed locally

Compression and resizing can change quality, metadata and color. Keep originals and verify output before publishing or printing.