Why would I convert a PNG to JPG instead of just keeping the PNG?

File size, mainly. JPEG's lossy compression typically produces a much smaller file than PNG for the same image, especially for photographs or photo-like graphics, which matters for email attachments, page-load speed, and platforms that reject PNG uploads outright.

Will I actually lose visible quality?

At 90% and above the difference from the original PNG is very hard to spot with the naked eye. Below about 70% you may start to notice soft blockiness around sharp edges, particularly on screenshots or flat-color graphics rather than photographs.

What happens to transparent areas in my PNG?

JPEG has no transparency channel, so any transparent or semi-transparent pixels are filled with solid white before the file is saved. There is currently no option to choose a different fill color — if you need a specific background color, flatten the PNG onto it first in an image editor before converting.

Does converting the same image to JPG more than once make it worse each time?

Yes. Every JPEG save re-applies lossy compression, so re-exporting an image that has already been through one or more rounds of JPEG compression accumulates visible artifacts. Keep an original PNG or high-quality master and convert from that each time rather than re-saving a JPEG repeatedly.

Are my images uploaded anywhere during conversion?

No. The PNG-to-canvas-to-JPEG pipeline runs entirely inside your browser tab using the Canvas API. Nothing is sent to a server, so this works even on files you would not want to upload elsewhere.

Can I convert a whole folder of PNGs at once?

Yes. Drop or select as many PNG files as you like in one go — each is converted independently and, since there is more than one, the results are bundled into a single ZIP file for download.

Is there a maximum file size or image resolution?

There is no hard resolution cap, but very large, high-megapixel PNGs take longer for the browser to draw onto canvas and encode. Extremely large files may be slower on lower-powered devices or older mobile browsers.

Does the JPG keep the same pixel dimensions as the PNG?

Yes. The canvas is created at the PNG's exact original width and height, so the JPEG output has identical pixel dimensions — only the compression and color encoding change, not the size.

Will metadata like EXIF data carry over to the JPG?

No. The Canvas API strips embedded metadata during the draw-and-re-encode process, so the resulting JPEG will not carry over any EXIF, color profile, or other metadata that was present in the source PNG.

Does this work the same on a phone as on a desktop browser?

Yes. The conversion uses standard Canvas and Blob APIs supported by modern mobile Chrome and Safari, so uploading, converting, and downloading the ZIP works the same way on a phone as it does on a laptop.

Convert PNG to JPG — Reduce File Size While Keeping Quality

FREE

Loading…

Go Pro ↑

Conversion type

JPGPNG PNGJPG WebPJPG JPGWebP SVGPNG JPGJPG ↓PNGPNG ↓

Drop PNG images or browse

PNG files · multiple OK

Quality

90%

Smaller fileBest quality

Your files never leave your device. All processing happens locally in your browser — nothing is uploaded to our servers.Files are never stored on our servers · No tracking of your file contentsPrivacy Policy

What is PNG to JPG?

PNG and JPG solve different problems, and converting one into the other means trading something away for a smaller file. PNG is lossless — every pixel is stored exactly as created — and it supports a full alpha (transparency) channel, which is why it is the default format for screenshots, app icons, and graphics meant to sit cleanly over another background. JPEG uses lossy, block-based compression that groups pixels into small squares and discards detail the eye is less likely to notice, and it has no transparency channel at all. Converting a PNG to JPG means accepting both trade-offs at once: some fine detail is thrown away permanently, and any transparent area in the source image gets filled in with a solid color — white, on this tool — before the file is saved.

JPEG quality on this converter runs from 40% up to 100%. At the high end, compression artifacts are essentially invisible even on close inspection. Drop below roughly 70% and you start to notice blockiness around sharp edges and banding across smooth gradients — this shows up faster on screenshots with crisp UI elements or flat-color diagrams than it does on genuine photographs, because JPEG's compression algorithm was designed around photographic noise patterns, not clean vector-style graphics. It is also worth knowing that quality loss compounds with repeated re-saving: a JPEG that has been opened, edited, and re-exported several times looks visibly worse than one saved once at the same quality setting, because each pass re-applies lossy compression on top of artifacts the last pass already introduced.

Because JPEG has no alpha channel, there is no way to carry transparency through this conversion — any transparent or semi-transparent pixel in your PNG is composited onto solid white before the JPEG is written. If you need a smaller file than PNG but still want to keep transparency intact, WebP is the better target: it supports both lossy and lossless modes alongside a full alpha channel, and the PNG to WebP tool on this site handles exactly that case.

The usual reason to make this conversion is file size. A PNG screenshot or graphic exported at high resolution can run several times larger than a JPEG of the same pixel dimensions, and that difference matters once you are attaching images to email (many providers cap total attachment size well below what a folder of PNGs adds up to), embedding photos on a web page where every extra kilobyte slows the load, or uploading to a platform — certain job application portals, print-on-demand storefronts, older content management systems — that accepts JPG uploads only and rejects PNG outright. Print bureaus in particular tend to standardize on JPEG for photographic output even when the original artwork or mockup was built as a PNG.

How It Works

Drop one or more PNG files onto the upload area and set a quality percentage with the slider — 90% is the default and a reasonable general-purpose value. Each PNG is loaded into an off-screen image element, drawn onto an HTML canvas at its full original pixel dimensions, and any transparent pixels are filled with solid white before the canvas is exported as a JPEG through the browser's native canvas encoder at your chosen quality. Everything runs locally through the Canvas API — there is no upload, no server-side processing, and nothing queued elsewhere. Converting a single file downloads one JPG immediately; converting several files bundles every result into one ZIP archive so you are not saving each image one at a time.

How to Use

Upload PNG images

Drag one or more .png files onto the upload area, or click to browse. Batch uploads are fine — there is no fixed limit on how many you add at once.

Set JPEG quality

Use the slider to choose a value between 40% and 100%. Stay at 90%+ for near-lossless results, or drop lower when file size matters more than fine detail.

Check for transparency first

If any of your PNGs have transparent areas, know that they will be filled with solid white automatically — JPEG cannot store transparency. Flatten onto a different color beforehand if white will not work for your use case.

Click "Convert to JPG"

Each PNG is drawn to canvas and re-encoded as a JPEG at your chosen quality, entirely inside your browser tab.

Download the result

A single converted file downloads immediately. Converting more than one file bundles all of the JPGs into one ZIP archive.

Re-convert if needed

Not happy with the size-versus-quality balance? Re-upload the original PNGs, adjust the slider, and convert again — the source files are never modified.

Who Uses This Tool

📧

Email Attachments

Shrink a batch of PNG screenshots or graphics down to JPG so the total attachment size stays under a provider's email limit.

🌐

Web Page Speed

Replace heavy PNG photos on a website with smaller JPGs where transparency is not needed, cutting page weight and load time.

📤

Platforms That Require JPG

Convert before uploading to job application portals, print-on-demand stores, or older CMS templates that reject PNG files outright.

🖨️

Print Submissions

Many print bureaus and photo labs expect JPEG input even when the original mockup or design file was exported as a PNG.

📱

Freeing Up Phone Storage

Convert a camera roll full of large PNG screenshots into smaller JPGs to reclaim space without deleting anything.

📂

Bulk Asset Migration

Batch-convert an entire folder of PNG assets to JPG when a project or client standardizes on JPEG delivery.

Why Choose This Tool

100% Private, Canvas-Based

Every PNG is decoded and re-encoded locally with the browser's Canvas API — nothing is ever transmitted to a server.

Real Quality Control

The 40–100% slider gives direct control over the size-versus-detail trade-off instead of a single fixed compression level.

Predictable Transparency Handling

Transparent pixels are always filled with clean white rather than turning black or corrupting, so the output looks intentional.

Meaningful Size Reduction

Photographic and photo-like PNGs commonly shrink by 60–80% once re-encoded as JPEG at a sensible quality setting.

Batch Conversion With ZIP Output

Convert dozens of files in one pass and get every result back in a single downloadable archive.

No Install, No Limits on Attempts

Nothing to download or configure — re-run the conversion as many times as you like at different quality settings.

Key Benefits

100% browser-based — your PNGs and the converted JPGs never leave your device

Adjustable quality from 40% to 100% to balance sharpness against file size

Batch-convert any number of PNGs in one pass

Dramatically smaller output for screenshots and photographic PNGs

Transparent areas are filled cleanly with white rather than left broken or black

No install, no plugin, no account required to use the tool

Free up to 40 MB — sign up free for 80 MB, upgrade to Pro for 250 MB

Works identically on desktop and mobile browsers

Frequently Asked Questions

Free Online Document Tools for Everyone

iLoveDocsTools is used by students, professionals, and businesses across the United States, Canada, United Kingdom, Australia, India, and more than 100 other countries. All tools are browser-based and process files privately — your files never leave your device. Free to use, with Pro plans for unlimited access.

PNG to JPG

What is PNG to JPG?

How It Works

How to Use

Who Uses This Tool

Why Choose This Tool

Key Benefits

Frequently Asked Questions

Related Tools

Free Online Document Tools for Everyone

No Upload Required

Free to Use — Pro Plans Available

Works on Any Device