PNG to JPG Converter

Why convert PNG to JPG?

PNG screenshots and exports are often enormous — a full-screen capture can easily run 1–5MB, because PNG's lossless encoding is tuned for sharp edges, not photographic content. Converting to JPG typically cuts such files by 70–90% with no visible difference when the content is photos, gradients or mixed screenshots viewed at normal size.

The classic use case: attaching screenshots to email, tickets or reports where the attachment limit or the recipient's patience matters. Ten PNG screenshots at 3MB each become a 3MB total after conversion — well inside any mail server's limits. The same math applies to uploading images to CMSs and forms that cap file size.

You also gain consistency: JPG output normalizes files from mixed sources into one predictable format, which matters when a batch of images comes from different phones, operating systems and screenshot tools but is headed into the same document or upload.

One important behavior: PNG supports transparency and JPG does not. Any transparent pixels in your PNG are filled with white during conversion, which is the sensible default for screenshots and photos. If you need to keep transparency, WebP output does that at a smaller size than PNG.

JPG vs. other formats: quick comparison

JPG (JPEG) uses lossy compression designed for photographs: it discards information the human eye notices least, reaching small files with high visual quality. It supports 16 million colors but no transparency, and its quality degrades if a file is repeatedly edited and re-saved. For photos exchanged between people and systems, it remains unbeaten in compatibility.

Compared with PNG: JPG files are typically 3–10× smaller for photographic content, but PNG is lossless and supports transparency. Compared with WebP: WebP matches JPG quality at 25–35% smaller sizes and supports transparency, but JPG wins on compatibility with older software and systems outside the browser.

Choose JPG when the image is a photo, compatibility matters, and transparency is not needed. Choose PNG for screenshots, text-heavy graphics or editing masters. Choose WebP when the destination is a modern website.

Private by design: conversion without upload

This converter does not send your image anywhere. Decoding and encoding both run inside your browser using the same image pipeline your browser uses to display pictures — there is no server involved, no queue, and no copy of your file on any machine but yours. When you close the tab, everything is gone.

That matters more than it sounds. Server-based converters require uploading the full original to someone else's infrastructure, where retention policies are invisible and breaches are possible. For product photos, ID scans, contracts photographed as images or anything confidential, browser-side conversion is the only design that keeps the risk at zero.

Speed is a pleasant side effect: without the upload-download round trip, a JPG conversion typically completes in well under a second per image on a modern device, and batch-dropped files process in parallel. The same privacy guarantee holds for every tool on this site.