Is Konnect2Tools free?

Yes. These in-browser tools are completely free to use with no account required for core functionality.

Do my files leave my device?

Browser document operations run locally, except where the operation uses an external service, such as AI summarisation. Read the processing note before using sensitive inputs.

Is the PNG ↔ JPG converter tool safe to use?

Local operations process document content on your device. External-service operations may send inputs as described in the processing note. Keep originals and inspect the output.

Which format should I use for photos: PNG or JPEG?

JPEG for photographs and images with complex colour scenes — JPEG achieves much smaller file sizes. PNG for graphics, logos, screenshots, and images that require transparency or will be edited further.

Does converting JPEG to PNG improve the quality?

No — the quality of the original JPEG is preserved but not improved. Converting JPEG to PNG creates a larger lossless file but doesn't recover the detail discarded during the original JPEG encoding.

What happens to the transparent areas when converting PNG to JPEG?

Since JPEG does not support transparency, transparent areas are filled with a background colour (white by default). Ensure you set the correct background fill colour before converting if white is not appropriate.

Can I convert multiple files at once?

Yes — upload multiple PNG or JPEG files and convert them all in one step. The outputs are bundled in a ZIP archive for download.

Image tools

PNG ↔ JPG converter

Convert between PNG and JPG in either direction.

Run PNG ↔ JPG converter online

In-browserDocument processing runs on your device. External resources may still load.

Enable JavaScript to use the interactive tool. Read the instructions, limitations and FAQs below before starting.

Converting between PNG and JPG (JPEG) is a routine format-switching task in digital workflows. PNG uses lossless compression and supports transparency, making it ideal for logos, icons, and graphics. JPEG uses lossy compression and achieves much smaller file sizes for photographs. Converting between them serves different purposes depending on the direction.

PNG to JPG conversion is used to reduce file size for photographic content (PNG photographs are 3–5× larger than JPEG equivalents), remove transparency for platforms that don't support it, and meet portal requirements that specify JPEG only. JPG to PNG conversion is used to preserve quality when the image will undergo further editing, and to add a transparent background.

The tool supports batch conversion (multiple files at once) and lets you set the JPEG quality for PNG→JPG conversions. For JPG→PNG conversions, the output is lossless, making it suitable as a working format for image editing pipelines.

How to use this utility

Use the controls below—paste text, pick files, or adjust options as described on the tool.
Click the main action button. Processing runs in your browser on this device.
Download or copy the output. Check the processing note for any external services used by this operation.

Common use cases

Converting PNG product photos to JPEG for e-commerce listings to reduce load time.
Converting a JPEG photo to PNG before removing the background (PNG supports transparency).
Converting PNG screenshots to JPEG to meet a portal's JPEG-only upload requirement.
Converting a PNG logo to JPEG for embedding in a Word document that requires JPG.
Batch converting a folder of PNG exports from a design tool to JPEG for web delivery.

Tips for best results

1When converting PNG to JPG, use 85–90% quality for photographs and 92–95% for graphics with gradients to balance size and quality.
2Never convert JPEG to PNG and then back to JPEG — each JPEG encode introduces irreversible quality loss; two conversions compound the degradation.
3If the PNG image has a transparent background, set a background colour (typically white) before converting to JPEG, since JPEG doesn't support transparency.
4For logos and icons with text, prefer PNG over JPEG — JPEG compression creates visible ringing artefacts around sharp edges.
5Check the output file size after conversion to confirm the expected size reduction (PNG→JPG) or size increase (JPG→PNG) occurred.

Frequently asked questions

Is Konnect2Tools free?: Yes. These in-browser tools are completely free to use with no account required for core functionality.
Do my files leave my device?: Browser document operations run locally, except where the operation uses an external service, such as AI summarisation. Read the processing note before using sensitive inputs.
Is the PNG ↔ JPG converter tool safe to use?: Local operations process document content on your device. External-service operations may send inputs as described in the processing note. Keep originals and inspect the output.
Which format should I use for photos: PNG or JPEG?: JPEG for photographs and images with complex colour scenes — JPEG achieves much smaller file sizes. PNG for graphics, logos, screenshots, and images that require transparency or will be edited further.
Does converting JPEG to PNG improve the quality?: No — the quality of the original JPEG is preserved but not improved. Converting JPEG to PNG creates a larger lossless file but doesn't recover the detail discarded during the original JPEG encoding.
What happens to the transparent areas when converting PNG to JPEG?: Since JPEG does not support transparency, transparent areas are filled with a background colour (white by default). Ensure you set the correct background fill colour before converting if white is not appropriate.
Can I convert multiple files at once?: Yes — upload multiple PNG or JPEG files and convert them all in one step. The outputs are bundled in a ZIP archive for download.

Continue with another utility in image tools.

Explore all categories

PDF hub Jobs & admissions Image hub Developer hub Finance hub Converters Business Health Real estate GST & tax HR & payroll Legal Design & marketing Education