JPG to PNG Converter
Convert JPEG files (released 1992, Lossy) to PNG (Lossless, typically Larger — 2–10× JPEG for photos). Runs in your browser — no upload, no signup.
Based on 12,431+ conversions delivered
Converting JPG to PNG gives you a lossless file you can edit, annotate, or layer without the blocky artifacts JPG introduces every time it's re-saved. It's the format editors and design tools expect, and unlike JPG it supports transparency. In our sample set, PNG files ran about 110% larger than the JPG source. One honest caveat: PNG can't recover detail JPG already discarded — if your source is a heavily compressed JPG, the PNG will be larger but won't look any sharper. It's the right move for graphics work and screenshots, less so for shrinking a photo. Conversion happens locally in your browser.
Looking to programmatically convert JPG to PNG?
Same engine, available as a JSON API. Drop a file or URL via REST and get the converted output back — no browser, no UI, no rate limits on paid tiers.
Sub-second response on common pairs
Webhook delivery for batch jobs
100+ format pairs supported
JPG vs PNG — side-by-side
The numbers and capabilities at a glance, so you know what you're trading.
JPEG
- Year released
- 1992
- Compression
- Lossy
- Transparency
- No
- Animation
- No
- Browser support
- Universal — older than the web itself
- Best for
- Photographs, hero images, anything where small file matters more than transparency
PNG
- Year released
- 1996
- Compression
- Lossless
- Transparency
- Yes (full alpha)
- Animation
- No (use APNG / GIF / WebP)
- Browser support
- Universal (every browser since the 90s)
- Best for
- Screenshots, icons, logos, any image with transparency
Real JPG → PNG file sizes
We ran a fixed set of sample images through this exact converter so you can see the typical size impact before converting your own files.
| Sample image | JPG size | PNG size | Change |
|---|---|---|---|
| Photo | 79.2 KB | 175.5 KB | +122% larger |
| Screenshot / UI | 6.0 KB | 4.6 KB | -22% smaller |
| Logo / transparency | 9.1 KB | 18.0 KB | +99% larger |
Measured on a 256×256 sample set with this converter on 2026-05-28. Real-world files vary with resolution, colour and content.
Best practices for JPG → PNG
Concrete settings to pick before you convert JPEG to PNG.
- Always preview the PNG output before bulk-downloading — colour shifts, transparency surprises, and quality artifacts show up in the preview before they ship.
- Strip EXIF metadata if file size or privacy matters — camera GPS coordinates, timestamps, and serial numbers travel inside the image bytes by default.
- PNG is lossless, so quality settings don't apply — but you can still shave bytes by quantising the palette (pngquant for PNG, gif2webp for GIF) when the image has a limited colour count.
- Verify the alpha channel rendered as expected — premultiplied vs straight alpha and edge halos around antialiased pixels are the most common surprises when going to PNG.
The importance of a good image conversion
Why getting JPG → PNG right matters more than you think.
Frequently asked
The basics everyone asks before dropping a file.