Image Converter (PNG, JPG, WebP, HEIC)

Formats in, formats out

This tool reads six formats — PNG, JPG, WebP, GIF, BMP, and HEIC (the format iPhones save photos in) — and writes three: PNG, JPG, and WebP. Those three are the only formats a browser's <canvas> can actually encode; GIF and BMP work as a source but can't be an export target from any browser. If you have a specific pair in mind, the dedicated pages below land with that conversion already selected:

• PNG to JPG
• JPG to PNG
• PNG to WebP
• WebP to PNG
• JPG to WebP
• WebP to JPG
• HEIC to JPG (iPhone photos)
• HEIC to PNG (iPhone photos)

HEIC needs a bit more work

Every format except HEIC decodes natively in every browser — this tool just hands the file to the browser's own image decoder. HEIC is different: no browser except Safari can open it directly, so this page loads a small WASM decoder (a few megabytes, only when you actually upload a .heic/.heif file — every other format never downloads it) to decode the photo locally before handing it to the same resize/export pipeline as everything else.

Sizing and quality

• Exact dimensions — type a width and/or height in pixels.
• Lock aspect ratio — editing one dimension recalculates the other from the source image's proportions, so you can't accidentally stretch it.
• Resize presets — 100/75/50/25% of the source's own size. Unlike a vector, a photo only gets blurrier scaled up, so there's no upscale option here.
• Quality — JPG and WebP take a quality slider (PNG is always lossless, so it has none).

Nothing is uploaded

The whole conversion — decode, resize, encode — happens in your browser via the Canvas API. The file never leaves your device, there's no upload progress bar because there's no upload, and closing the tab is enough to discard everything.