Turn PNGs into smaller JPGs on your device, with a quality slider to balance size and detail. No upload, no sign-up, no limits.
Drop PNG images here
or click to choose — convert as many as you like
🔒 Converted on your device · 0 bytes uploaded
How it works
ConvertCabin draws your image onto a canvas inside this browser tab and re-encodes it in the new format — entirely on your device. The file is never uploaded, so there's no queue, no daily cap, and no account.
Most converters that rank for these searches upload your image to a server first. Because ConvertCabin does the work locally, it stays genuinely free, unlimited and private — and keeps working offline once the page has loaded.
About PNG and JPG
PNG is lossless and keeps transparency, which makes it large — ideal for graphics and screenshots, heavy for photos. JPG uses compression that's perfect for photographs and usually produces a much smaller file, at the cost of transparency and a little detail.
Frequently asked questions
How do I convert PNG to JPG?
Drop your PNGs above, pick a quality, and download the JPGs — all in your browser, nothing uploaded.
Will the JPG be smaller than the PNG?
For photos, usually much smaller. For flat graphics with few colours the difference can be small, and PNG may even win.
What happens to transparency?
JPG can’t store transparency, so transparent areas are filled with white when you convert.
What is a PNG file?
PNG is a lossless image format that supports transparency. It preserves every pixel exactly — great for logos, screenshots, and graphics with sharp edges — at the cost of larger files than JPG for photographs.
What is a JPG file?
JPG (also written JPEG) is the most widely supported image format on the web. It uses lossy compression to keep files small, making it ideal for photos and sharing, though re-saving repeatedly slowly reduces quality.
Does converting PNG to JPG lose quality?
A little, by design — JPG uses lossy compression, so fine detail can soften slightly and transparency is flattened onto a background. At high quality settings the difference is rarely visible in photos; for graphics with sharp edges or transparency, staying PNG is better.