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Image Converter

PNG ↔ JPG ↔ WEBP

4.7· 69 votes
An image converter re-encodes an image from one format to another — PNG, JPG, WebP, GIF and more — without downloading desktop software. StuHub renders through the Canvas API so input can be any format the browser decodes, and output can be any of the standard web formats.
Your file never leaves this browser. Everything runs on your device — no uploads, no server storage, no retention.How it works →
Drop an image
PNG, JPG, WEBP, GIF, BMP — up to 50 MB

What is Image Converter?

Convert images between PNG, JPG, and WebP in a click. Useful when a site or app insists on a specific format, when you want WebP for smaller downloads, or when you need PNG for transparent-background logos. The tool renders through Canvas so colour profiles are preserved as much as the source allows. Input can be any format modern browsers decode — including GIF, BMP, and AVIF in many browsers.

How do I use Image Converter?

  1. Drop any image onto the upload zone.
  2. Choose the target format: PNG, JPG, or WebP.
  3. For JPG/WebP, optionally adjust quality (90% is a safe default).
  4. Click Download to save the converted file.

Image Converter by the numbers

Formats in
PNG, JPG, WebP, GIF, BMP, AVIF, HEIC*
Formats out
PNG, JPG, WebP
Max input
50 MB
Quality control
JPG + WebP: 1–100 slider
HEIC note
Safari only (browser limitation)

Common use cases for Image Converter

  • Converting an HEIC photo from an iPhone to JPG for a Windows upload.
  • Swapping PNGs to WebP to save bandwidth on a site deploy.
  • Preparing a transparent logo in PNG after receiving it as JPG.
  • Bulk-translating camera AVIFs to JPG for a legacy editor.
  • Downloading a favicon as ICO after designing it as PNG.

Common pitfalls and how to avoid them

  • Transparency disappeared after JPGJPG has no alpha channel. Use PNG or WebP if transparency matters.
  • Output is huge after PNG → PNGPNG is lossless; there is nothing to recompress. Try WebP lossless or skip the conversion.
  • HEIC does not decodeSafari supports HEIC natively; Chromium does not. In Chrome/Firefox, convert the HEIC with a desktop tool first.

When should I use Image Converter?

Choose Image Converter for format switches. If you also need smaller file size, Image Compressor exposes a quality slider with a split-view preview. To change resolution at the same time as format, Image Resizer handles both in one pass.

Frequently asked
Which formats can I convert between?

PNG, JPG (JPEG), and WebP. Input can be any format your browser can decode (including GIF, BMP, AVIF).

Does PNG → JPG preserve transparency?

JPG does not support transparency, so transparent pixels become white. If you need transparency, use PNG or WebP as the target format.

What quality setting should I use?

90% is a safe default for JPG and WebP — visually indistinguishable from the source. Drop to 75% if file size matters more than perfect fidelity.

Is my file uploaded anywhere?

No. Everything runs in your browser. Your files never leave your device, and there is no server component for this tool.

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