# JPG to PNG Converter > Browser-only file conversion. Selected files are processed on this device and are not uploaded to a conversion server. Source: https://localconverter.tech/jpg-to-png Convert a JPG image into PNG for an upload form, website or editing app that expects that format. The converter decodes the image and writes a new file rather than renaming the extension. The output retains only the features supported by the destination image format. ## Useful tasks - Prepare a PNG copy for a service that does not accept JPG. - Set an output width while retaining the original source file. - Create a delivery copy with the settings your next app needs. ## Steps 1. **Select your JPG files**: Use Select File or drop supported JPG files into the upload area. Each file creates a separate PNG result. Check that the filename extension matches the contents and that the original opens correctly before adding a larger batch. 2. **Choose the output settings**: Open Options beside a selected file. Width is available for this JPG to PNG operation. Save options to apply them to that file; other files in a batch can use different settings. 3. **Convert to PNG**: Select Convert to add the files to the local queue. Files run one at a time, with real progress where the engine provides it. You can cancel a queued or running job and retry a failed result after correcting its input or settings. 4. **Download and check the result**: Selections and completed jobs stay available while you navigate inside this tab. Use My files to revisit results. Reloading or closing the tab clears the workspace; download results you want to keep first. ## Settings - **Width (pixels; 0 keeps original)**: Set the output width in pixels. Use 0 to keep the original width; proportions are retained. Default: 0. ## Choose settings for the destination Start with a 2400-pixel-wide JPG image. Set Width to 1200 to create a narrower copy while retaining its proportions. Inspect the saved file before submitting or sharing it. Keep the original if you may need another export later. ## Check the result Inspect small text, fine edges, orientation and transparency at the intended display size. Standard format-pair conversion uses the first frame or page and removes metadata. Use the dedicated animation tools for moving GIF/WebP/APNG, or metadata tools when inspection or removal is the specific task. ## About JPG Uses lossy compression to keep photographs compact. JPEG does not support transparent backgrounds. ## About PNG Stores images without lossy compression and supports transparency. Commonly used for screenshots, logos and graphics. ## Limits - Files are processed on this device. Browser memory and engine-specific limits apply. Save results before reloading. - Only the first frame/page is converted. - JPEG transparency is flattened onto white. - Metadata is removed; SVG must be self-contained, without CSS escapes. - Processing runs in this browser. Large files may exceed your device memory; save results before reloading. - Up to 20 files per session, 100 MB per file and 200 MB per output. Processing has a 180-second job deadline. ## Questions ### How do I convert JPG to PNG? Choose your JPG files, review Options and the format notes, then select Convert. Download the finished PNG copy and check it in your destination application. Each input is processed independently; the original file remains unchanged. ### Will converting to PNG improve image quality? PNG stores the decoded image without further lossy compression. It cannot recover detail already removed from the source image. ### Which settings can I change for JPG to PNG? Width (pixels; 0 keeps original): Set the output width in pixels. Use 0 to keep the original width; proportions are retained. Default: 0. ### Will the result be smaller or better quality? A successful PNG conversion does not guarantee a smaller file or recovered detail. Container overhead, compression and the selected settings all affect output size. Check the saved result and keep the source if you might need a different export. ### Why did my JPG file fail? Read the message beside the file. A mismatched extension, corrupt data, unsupported feature or resource limit can prevent conversion. Check that the source opens normally, try the default settings and retry. The app will not offer a successful download for a failed job. ### Where are files processed and how long are they kept? Processing runs in this browser, on your device. Files and pasted input are not uploaded to a conversion server. The website and required engine assets must load first; large operations depend on available device memory. ## Related guides - [JPG to JPG](https://localconverter.tech/jpg-to-jpg.md) - [JPG to WEBP](https://localconverter.tech/jpg-to-webp.md) - [JPG to AVIF](https://localconverter.tech/jpg-to-avif.md) - [JPG to GIF](https://localconverter.tech/jpg-to-gif.md)