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Convert PNG to JPG free, without uploading
PNG to JPG shrank our 1281×1600 px portrait from 4.46 MB to 254 KB (−94%) at quality 85, but a flat chart stayed about the same (39.7 KB → 39.6 KB) and lost its crisp edges. Convert photos; keep screenshots, logos and signatures as PNG. Transparent areas turn white. Nothing is uploaded.
PNG to JPG
JPG · no file-size limit · original pixel size · white background
No file-size limit is set: PixelFit saves at high quality and changes only the format and any pixel size you set.
Fit, background and padding white background
Saving presets is part of Pro.
The result appears here: the exact byte count, pixel size and quality, the size before and after, a preview and a download button.
The batch kit (one ZIP for up to 500 photos, several photos merged into one PDF) is part of Pro.
What changes from PNG to JPG
All 5 points below lose or alter something on the way from PNG to JPG.
- Lost or changed: JPG cannot store transparency, so transparent areas of the PNG are filled with a background colour (white unless you pick another).
- Lost or changed: Animated PNGs (APNG) are rare, but if yours is one, only its first frame becomes the JPG.
- Lost or changed: JPG is lossy: the exact pixels of the PNG are approximated, which is invisible on photos at high quality but can blur sharp text and edges.
- Lost or changed: PNG can hold more than 8 bits per channel (1 to 16 bits per channel); a browser canvas works at 8 bits, so 10-, 12- or 16-bit files are reduced to 8 bits per channel.
- Lost or changed: Metadata is not carried over: the PNG's text chunks, eXIf and ICC data are dropped by the canvas.
Measured file size: PNG vs JPG
sharp 0.35.5 / libvips 8.18.7, 31 October 2026, long edge 1600 px; JPG saved as quality 85, 4:2:0, white background, PNG as lossless, zlib level 6, RGBA.
| Sample | PNG | JPG | Change |
|---|---|---|---|
| portrait photo (1281×1600 px) | 4.46 MB (4,679,548 bytes) | 254 KB (259,778 bytes) | −94% |
| landscape photo (1600×1200 px) | 4.74 MB (4,972,383 bytes) | 640 KB (655,531 bytes) | −87% |
| scanned typed letter (1273×1600 px) | 2.59 MB (2,714,410 bytes) | 331 KB (338,899 bytes) | −88% |
| flat chart with a transparent background (1600×1000 px) | 39.7 KB (40,653 bytes) | 39.6 KB (40,504 bytes) | −0.4% |
What the numbers mean for PNG to JPG
Our portrait photo at 1281×1600 px: PNG 4.46 MB → JPG 254 KB (−94%, 18.0 times smaller).
Our landscape photo at 1600×1200 px: PNG 4.74 MB → JPG 640 KB (−87%, 7.6 times smaller).
Our scanned typed letter at 1273×1600 px: PNG 2.59 MB → JPG 331 KB (−88%, 8.0 times smaller).
Our flat chart with a transparent background at 1600×1000 px: PNG 39.7 KB → JPG 39.6 KB (−0.4%, about the same size).
Per pixel, the portrait took 18.27 bits as PNG and 1.01 bits as JPG, a difference of 4.22 MB on 2,049,600 pixels.
Per pixel, the chart took 0.20 bits as PNG and 0.20 bits as JPG, a difference of 0.15 KB on 1,600,000 pixels.
JPG came out smaller than PNG on all 4 samples, from −0.4% to −94%.
For graphics a 256-colour PNG beat the JPG: the chart was 12.5 KB as a palette PNG against 39.6 KB as a JPG, without blurred edges, so graphics are better kept as PNG.
How to convert PNG to JPG
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Add the PNG file
Drop the .png file on the tool at the top of this page, tap to choose it, or paste it.
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Pick a background
Choose the colour that fills transparent areas of the PNG in the JPG; white is pre-selected because most forms and documents are white.
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Keep JPG selected
JPG is pre-selected at quality 85. Type a maximum size in KB or exact pixel dimensions only if the destination sets them; PixelFit then searches the highest quality that fits and shrinks the pixel size only when quality alone is not enough. Our PNG test portrait came out at 254 KB as JPG with no limit set.
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Download the JPG
Save the file ending in .jpg; its size in KB shows before you save.
PNG and JPG side by side
PNG (1996) next to JPG (1992); browser figures checked 31 October 2026.
| Property | PNG | JPG |
|---|---|---|
| File extensions | .png | .jpg, .jpeg, .jpe |
| MIME type | image/png | image/jpeg |
| Compression | lossless | lossy |
| Transparency | yes | no |
| Animation | yes | no |
| Largest size | 2,147,483,647 px per side | 65,535 px per side |
| Colour depth | 1 to 16 bits per channel | 8 bits per channel (baseline) |
| Metadata | text chunks, eXIf and ICC data | EXIF, ICC and XMP data |
| First published | 1996 | 1992 |
| Opens in | Chrome, Edge, Firefox, Safari (every current browser); about 97.49% of browsers in use | Chrome, Edge, Firefox, Safari (every current browser) |
| Good for | screenshots, logos, signatures on white and images with transparency | photos for upload forms, e-mail and the web |
| Weak for | large photos, which come out several times bigger than a JPEG | text, line art and anything that needs a transparent background |
| Specification | Portable Network Graphics (PNG) Specification, Third Edition (W3C) | ITU-T Recommendation T.81 (JPEG) |
When not to change PNG to JPG
- Avoid JPG for screenshots, text, signatures and logos when the destination accepts PNG: JPEG compression softens hard edges, and on our flat chart the PNG to JPG change saved only −0.4%.
- If the transparent background of the PNG must stay (a logo over a coloured page, a sticker), keep the PNG or choose WebP instead of JPG.
- If the destination already accepts PNG, upload the original: every change of format re-encodes the pixels.
Browser support for PNG and JPG (October 2026)
Reading PNG (.png): Chrome, Edge, Firefox, Safari (every current browser). caniuse puts PNG support at about 97.49% of browsers in use (data updated 29 October 2026).
Writing JPG from that PNG: Chrome 50+, Edge 79+, Firefox 18+, Safari 11+ (MDN compatibility data for canvas.toBlob, checked 31 October 2026).
Upload forms that ask for JPG
53 of the 61 application portals we checked accept JPG photos, 16 of them with a limit of 50 KB or less. A few of them, for this PNG file (verify with the official notice before you upload):
- Rwanda visa: JPG photo, up to 500 KB.
- UPSC: JPG photo, 20–300 KB, 350–1000 × 350–1000 px.
- India Post GDS: JPG photo, up to 50 KB.
- Kerala PSC: JPG photo, up to 30 KB, 150 × 200 px.
Where PNG files come from
PNG files are usually screenshots, exported graphics, scanned signatures or images with a transparent background. Photos saved as PNG are large because PNG keeps every pixel exactly.
Moving a PNG to JPG is mostly about accepted file types and file size.
Sources
- Portable Network Graphics (PNG) Specification, Third Edition (W3C), W3C, checked 31 October 2026: w3.org/TR/png-3/
- ITU-T Recommendation T.81 (JPEG), ITU, checked 31 October 2026: itu.int/rec/T-REC-T.81
- caniuse.com “PNG alpha transparency” support table, data of 29 October 2026 (CC BY 4.0): caniuse.com/png-alpha
- MDN browser-compat-data, HTMLCanvasElement.toBlob (which browsers write JPG), CC0, checked 31 October 2026: github.com/mdn/browser-compat-data/blob/main/api/HTMLCanv…
- Test photo “President Barack Obama.jpg” by Pete Souza (Official White House photo), public domain, measured by PixelFit with sharp 0.35.5 / libvips 8.18.7 on 31 October 2026: commons.wikimedia.org/wiki/File:President_Barack_Obama.jpg
Frequently asked questions
Can I convert PNG to JPG for free?
Yes. The PNG to JPG change runs free on your device, with no sign-up and no upload, one file or up to 25 at a time; Pro raises the batch to 500 with one ZIP download.
How do I convert PNG to JPG?
Drop the PNG on the tool above, keep JPG selected, pick a background colour for transparent areas, and download the .jpg file. Add a KB limit if the destination has one.
Does converting PNG to JPG reduce quality?
JPG is lossy: the exact pixels of the PNG are approximated, which is invisible on photos at high quality but can blur sharp text and edges. In our test a 1281×1600 px portrait went from 4.46 MB as PNG to 254 KB as JPG (−94%).
Should I convert screenshots and logos from PNG to JPG?
Usually not. Our flat chart was 39.7 KB as a full-colour PNG and 39.6 KB as a quality 85 JPG, while a 256-colour PNG of it took 12.5 KB with sharp edges. For a smaller graphic keep PNG selected and type a KB limit: PixelFit cuts the colour count before it cuts pixels.
How small does a PNG photo get as JPG?
In our test the 1281×1600 px portrait went from 4.46 MB to 254 KB at JPG quality 85 and 160 KB at quality 70; the 1600×1200 px landscape went from 4.74 MB to 640 KB. With a KB limit set, PixelFit picks the highest quality that fits.
What happens to the transparent background of a PNG?
JPG has no transparency, so transparent pixels of the PNG are filled with the background colour you pick, white by default. Choose PNG or WebP to keep transparency.
Related
More PNG format changes
- JPG to PNG the reverse direction
- PNG to PDF same PNG input
- PNG to WebP same PNG input
Other files to JPG
- GIF to JPG also ends as JPG
- ICO to JPG also ends as JPG
- WebP to JPG also ends as JPG
- AVIF to JPG also ends as JPG
- BMP to JPG also ends as JPG