Convert PNG to JPG
Convert PNG images to smaller JPG files locally in your browser. Pick a background color to flatten transparency. Nothing is uploaded.
Privacy-first: every image is processed locally in your browser. Nothing is uploaded, stored or transmitted to any server.
Photos stored as PNG waste a lot of space
PNG shines for screenshots and graphics, but it is the wrong container for photographs: lossless compression cannot do much with the noisy detail of a real photo, so a photo-in-PNG is often five to ten times larger than the same image as a high-quality JPG. Converting reclaims that space with no visible difference at sensible quality settings.
What happens to transparency
JPG has no alpha channel, so any transparent areas in the PNG must be flattened onto a background. You choose the color — white for documents and listings, or whatever matches the destination. If the image genuinely needs its transparency (a logo, a cut-out), keep it as PNG or convert to WebP instead.
Private, instant, batch-capable
Conversion runs on your own device using the browser’s built-in encoder — no upload, no queue, no account. Drop dozens of PNGs at once and download the JPGs individually or as a single ZIP.
Frequently asked questions
- Which formats are supported?
- You can convert to and from JPG, PNG, WebP, AVIF and BMP, and convert from HEIC/HEIF (iPhone photos). Browsers cannot create HEIC files, so HEIC is input-only. Output formats your browser cannot encode are detected and disabled automatically.
- Can I convert HEIC to JPG?
- Yes. Drop in a HEIC photo from an iPhone and choose JPG (or PNG/WebP). The HEIC file is decoded locally in your browser with a bundled decoder — it is never uploaded anywhere.
- Is transparency preserved?
- Yes, when converting to a format that supports an alpha channel (PNG, WebP, AVIF). For formats without transparency (JPG, BMP), you can pick a background color for transparent areas.
- Is my image uploaded?
- No. Conversion runs entirely in your browser — your images never touch a server.
- What is AVIF and should I use it?
- AVIF produces the smallest high-quality files. Encoding support varies by browser, so PixelVault enables it only when your browser can create AVIF files.
- Can I convert many images at once?
- Yes. Batch-convert a whole folder of images and export them together as a ZIP.