Is the JPG to PNG converter free?

Yes, completely free. No account, no subscription, and no watermarks are added to converted files.

Are my images stored on the server?

Converted files are held temporarily on the server for download, then automatically deleted. No images are retained beyond your session.

Why does re-saving a JPEG keep reducing quality?

JPEG compression is lossy and additive. Every time you open a JPEG and save it again — even at the same quality setting — the encoder re-analyzes the already-compressed pixel data and applies another round of compression. Each round introduces new blocking artifacts and smears fine edge detail. After three or four round-trips, the degradation becomes visible on smooth gradients, text overlays, and fine textures. This is called generation loss. Converting to PNG stops it: PNG encodes pixels losslessly, so every subsequent save of a PNG preserves the current state exactly.

At what point does generation loss become visible in a JPEG?

It depends on the initial quality setting. A JPEG originally saved at quality 95 can tolerate several round-trips before degradation is apparent at normal viewing. A JPEG originally saved at quality 80 may show visible new artifacts on the second re-save. Images with text overlays, sharp edges, and high-contrast transitions are most sensitive. Smooth photographic gradients tolerate more generations before the cumulative damage is obvious.

I converted JPG to PNG, but the file is much larger. Is something wrong?

Nothing is wrong. This is expected. JPEG compresses by discarding data; PNG stores all pixel data losslessly. The same image takes more space when every pixel is preserved exactly. A 400 KB JPEG photograph can become a 3 to 8 MB PNG. The larger size is the cost of lossless storage; the benefit is that the PNG can be edited and re-saved indefinitely without any further quality loss.

Why is PNG a better working format than JPEG for ongoing design edits?

Each design edit and re-export of a JPEG source adds another compression generation. If you crop, resize, add a text overlay, adjust brightness, or composite the image into another layout, and then save as JPEG each time, you accumulate artifacts with every step. Working from a PNG source means all intermediate saves are lossless. You only pay the quality cost when you export the finished work as JPEG for delivery.

Does converting JPG to PNG add transparency to the image?

No. The conversion produces a PNG with the same pixel content as the JPEG, including any solid or colored background. JPEG does not support transparency, so there is no transparency information to transfer. PNG supports alpha channels, but the converted PNG will be fully opaque. To remove the background and produce a PNG with transparency, you need a background-removal tool after conversion.

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Free JPG to PNG Converter Online

Q: How do I convert JPG to PNG?

Upload your JPG images into the drop zone, adjust the quality slider if needed, then click "Convert all to PNG". Download results individually or as a ZIP.

JPG PNG

Convert up to 5 JPG images to PNG — drag, drop, download.

Last updated July 6, 2026

Drop JPG images here

or click to browse · up to 5 files · max 20 MB each

About JPG → PNG conversion

What is JPG?

JPG (JPEG) is a lossy compressed image format ideal for photographs and complex scenes. It achieves small file sizes by discarding fine detail imperceptible to the human eye, making it the standard for web photos and digital cameras.

What is PNG?

PNG is a lossless image format that supports full transparency (alpha channel). Every pixel is preserved exactly, making it the preferred choice for logos, UI graphics, screenshots, and any image with sharp edges or flat areas of colour.

About JPG

JPEG compression is additive. Each time a JPEG is opened and saved at a lossy quality setting, the encoder re-analyzes pixels that are already compressed and applies another compression pass. Blocking artifacts — visible in smooth gradients — and ringing noise around sharp edges accumulate with each round-trip. An image originally saved at quality 80 may show visible new damage on the second re-save. This accumulation is called generation loss, and it is the primary reason working photographers and designers convert JPEGs to a lossless format before beginning any editing work.

JPEG in delivery-only workflows versus editing workflows

JPEG is the correct output format for distribution: the file size efficiency and universal compatibility it provides are unmatched for sharing, web publishing, and email. It is the wrong format for intermediate editing steps, where each re-export to JPEG compounds the quality cost. The standard workflow is to keep source files in a lossless format, edit without generation loss, and convert to JPEG only when the work is finished and the file is ready to leave the editing environment.

About PNG

PNG is a lossless format: every save produces a pixel-identical output. Re-opening and re-saving a PNG never introduces new compression artifacts or discards image data. This property makes PNG the correct intermediate format for any image that has more editing ahead of it. A JPEG converted to PNG at this step will not gain quality — the pixels stored are the same pixels the JPEG contained, including existing compression artifacts — but it will stop losing quality on every subsequent save.

PNG as a working format versus a final delivery format

PNG file sizes are larger than JPEG for photographic content because lossless storage preserves every pixel. A 400 KB JPEG photograph often becomes a 3 to 8 MB PNG. This size increase is the intended behavior: the PNG is a working copy, not a distribution file. When editing is complete and the file is ready for delivery, re-exporting to JPEG from the PNG source applies only one compression pass on the finished image, not on an image that has already been compressed multiple times.

Frequently asked questions

Is this converter free?

Yes — completely free with no account required. No watermarks are added to your converted files, and no subscription is needed.

How do I convert JPG to PNG?

Drop your JPG images into the upload zone (or click Choose files). Adjust the quality slider if needed, then click Convert all to PNG. Once done, download each file individually or click Download all (ZIP) for the full batch.

How many files can I convert at once?

Up to 5 images per batch, maximum 20 MB per file. All images in your queue are converted in parallel. Start a new batch to process more.

Are my images stored after conversion?

Converted files are held on the server only long enough for download, then automatically deleted. No images are retained beyond your session.

Every time you open a JPEG and save it again, you compress it twice. The encoder re-applies lossy compression on top of pixels that are already compressed, and each pass smears fine edges and introduces new blocking. After three or four rounds of editing and re-saving, the degradation is visible on text overlays, sharp curves, and smooth gradients. Converting to PNG stops this: PNG stores pixel data losslessly, so every subsequent save preserves the current state exactly.

The PNG you get from this conversion is a snapshot of the JPEG's current pixel state. It is larger than the source JPEG because it stores every pixel without compression. It does not add quality that JPEG compression has already discarded. What it does is stop the quality from decreasing any further, making it the right intermediate format for any image that has more editing ahead of it.

When JPG to PNG makes sense

Converting a JPEG you received and plan to edit, resize, crop, or composite, so further saves do not degrade it
Creating a lossless working copy of a JPEG to use as a source layer in design software, where each edit round-trip to JPEG adds another generation of artifacts
Archiving a JPEG in a format where repeated re-saves will not reduce quality over time
Preparing a source file for background removal or masking, which typically uses a PNG container for the transparent output
Meeting a platform or tool requirement that accepts only PNG and where JPEG compression artifacts in the output would be unacceptable

PNG to JPG (reverse conversion, ready to deliver) · JPG to WebP (modern lossy format, smaller than JPEG)

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Convert JPG images to SVG with quick export settings.

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Free JPG to PNG Converter Online

About JPG → PNG conversion

What is JPG?

What is PNG?

About JPG

JPEG in delivery-only workflows versus editing workflows

About PNG

PNG as a working format versus a final delivery format

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Frequently asked questions

When JPG to PNG makes sense

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