JPG to PNG Converter – Free Online Tool
Convert JPG images to lossless PNG format instantly. Batch convert multiple files — free, browser-based, no signup.
No signup · No limits · Works on any device
What Is a JPG to PNG Converter?
A JPG to PNG converter changes the file format of an image from lossy JPEG to lossless PNG. JPEG compresses images by discarding fine detail to achieve smaller file sizes — the tradeoff is that each time a JPEG is edited and saved, it loses a little more quality. PNG uses lossless compression that preserves every pixel of the image exactly, with no generational quality loss. Converting from JPG to PNG is valuable in several scenarios: preparing an image for editing in Photoshop or GIMP where repeated saves would degrade a JPEG, converting a product photo to PNG for use on a transparent background in Figma, switching from JPG to PNG for web graphics that contain text or sharp edges, or converting screenshots (often JPEG) to lossless PNG for documentation. It's important to understand one key limitation: converting from JPEG to PNG cannot recover quality that was already lost in the original JPEG compression. The PNG will preserve the current pixels exactly, but any artifacts already present in the JPEG — color banding, blocking around edges, fine detail smoothed away — are now "frozen" into the lossless PNG. Despite this, the PNG is lossless from this point forward, meaning no further quality loss will occur when you edit and re-save it. FileQuick converts JPG to PNG in your browser using the Canvas API. Your images never leave your device. Batch conversion is supported — you can upload multiple JPGs and each downloads as a separate PNG file.
Why use FileQuick?
If you're working with images in an editing pipeline — resizing, color correction, compositing — PNG is the professional choice for intermediate saves. Unlike JPG, which degrades with each save cycle, PNG retains perfect pixel fidelity at every step. FileQuick's browser-based converter means your JPG originals never get uploaded to a cloud service, which matters for photos of private subjects, client work, or proprietary product images. Conversion is instant and batch-ready.
How to Convert JPG to PNG Online — Step by Step
- Click 'Upload Files' or drag and drop your JPG images into the drop zone. Multiple files are supported.
- Wait a moment while each image loads in the browser.
- Click 'Convert to PNG'. Each JPG is decoded and re-encoded as lossless PNG using the Canvas API.
- Each converted PNG downloads automatically with the same filename but a .png extension.
Frequently Asked Questions
Is the JPG to PNG converter free?
Yes, completely free — no account, no payment, and no limits on files or batch size.
Will converting JPG to PNG improve image quality?
Not exactly. The PNG will be lossless from this point forward, but it cannot recover quality already lost in the original JPEG compression. Existing artifacts are preserved exactly as they are.
Can I convert multiple JPGs at once?
Yes. Upload multiple JPG files and each will be converted and downloaded as a separate PNG file.
Are my files uploaded to a server?
No. All conversion uses the browser's Canvas API. Your images never leave your device and are not stored anywhere.
What is the maximum file size?
Each image can be up to 20 MB. Very large images may take a moment to load in the browser before conversion.