Convert JPG images to PNG with transparency support.
Our JPG to PNG converter runs entirely in your browser using the Canvas API — meaning your image files are never uploaded to any server. This makes it the fastest and most private way to convert images online.
PNG format supports transparency and is ideal for logos, graphics, and web images where you need a lossless format.
Click "Choose Image" or drag your JPG into the box. Works with JPG, JPEG, and WebP files.
Your image is converted to PNG automatically in your browser — no waiting, no upload.
Preview both images side by side, then click Download PNG to save your file.
No. This tool runs entirely in your browser. Your image never leaves your device. It is 100% private.
No file size limit since everything runs in your browser. Very large images (50MB+) may take a few seconds.
PNG is a lossless format. Your converted image will maintain the full quality of the original JPG.
PNG supports transparency, is lossless, and is better for logos, screenshots, and graphics. JPG is better for photos.
Input: JPEG (.jpg, .jpeg) and WebP
Output: PNG (.png)
Maximum file size: No strict limit (browser memory applies). If your file is larger, compress or split it first using our other free tools, then return here.
Yes. FastConvertTools is free to use with no account required. We fund the site through advertising so you can convert files without a paywall.
This tool runs in your browser. Your file is not uploaded to our servers for conversion, which keeps photos, notes, and drafts on your device. Clear your downloads folder if others share the computer.
There is no hard server limit because processing stays local. Very large files may slow down or fail if the browser runs out of memory—No strict limit (browser memory applies).
Any modern device with a current browser works. Phones and tablets can upload from the gallery or files app; desktops support drag-and-drop. Disable aggressive ad blockers only if they block the conversion script—never disable HTTPS.
No. JPEG has no alpha channel, so backgrounds stay opaque unless you remove them in an editor before or after conversion.
PNG preserves sharp edges and supports transparency for graphics, while JPEG optimizes photographic file size with lossy compression. Converting JPG to PNG stops further JPEG generation loss when you need to edit repeatedly in design software. Logos exported incorrectly as JPEG gain nothing from format change alone—you still need background removal for true alpha. PNG files are often larger; use them for UI assets, screenshots, and diagrams, not multi-megapixel photo galleries. WebP uploads can convert when browsers supply decode support. Because processing happens locally, confidential mockups never leave your machine—ideal for agency client work under NDA. After conversion, run a lossless PNG optimizer if byte size matters on mobile sites.
FastConvertTools focuses on straightforward workflows: upload or paste, convert, download, and move on with your day. Whether you are a student fixing one assignment, a freelancer delivering client assets, or an office administrator unblocking an email attachment limit, you get clear steps on this page and predictable limits before you start. When results must be perfect, always keep an original copy and spot-check the output against your source—automated conversion saves time, but human review still wins for high-stakes documents.