Which image conversions are lossless?

PNG to WebP (lossless mode) and JPEG to PNG are the two lossless conversion paths. Both preserve every pixel exactly. PNG to WebP lossless is also 26% smaller than the original PNG — you get quality preservation AND size savings.

Does converting JPEG to WebP lose quality?

Converting JPEG to WebP in lossy mode (the default for photos) applies additional compression, but at 80%+ quality the difference is visually imperceptible. The resulting WebP will typically be 25–34% smaller than the JPEG.

Why does PNG to JPEG always lose quality?

JPEG uses lossy compression and doesn't support transparency. When you convert a PNG to JPEG, the algorithm discards colour data it considers imperceptible. Repeated save cycles degrade quality further — this is called 'generation loss'.

What is the best format to convert everything to?

WebP is the modern answer for web images. It supports both lossless and lossy compression, has full transparency support, is 25–34% smaller than JPEG, and works in all modern browsers.

Can I convert between formats without Photoshop?

Yes. FileCrisp converts between PNG, JPEG, and WebP entirely in your browser — no Photoshop, no Lightroom, no install required. Free, private, and instant.

Image ToolsMay 20266 min read

Convert Images
Without Losing Quality.

Not all image conversions are equal. Converting PNG→JPEG always loses quality. Converting JPEG→WebP can improve your quality-to-size ratio. Here's exactly which conversions are safe.

Quality guide — conversion paths

PNG→WebP (lossless)Zero lossSafe ✓

JPEG→WebP (lossy)Minimal loss at 80%+Safe ✓

PNG→JPEGQuality loss — no transparency⚠ Lossy

JPEG→PNGNo further loss (but JPEG artifacts stay)OK ✓

Convert Images Free

Formats supported

PNG · JPEG · WebP — convert in any direction

Quality loss (PNG→WebP lossless)

Full pixel-perfect preservation

Files uploaded

All conversion happens in your browser

Watch out

PNG → JPEG warning: This conversion is always lossy and permanently discards transparency. Only do this if you specifically need JPEG compatibility (e.g. email) and the image has no transparent areas.

Convert images between formats — free

PNG, JPEG, WebP — all directions supported. Private, instant, no upload.

Free forever

No uploads · 100% private

Convert Images Free

FAQs

Frequently Asked Questions

Everything you need to know — answered plainly.

Convert Images Free — Any Format

PNG ↔ WebP ↔ JPEG. Free, private, browser-based. No account needed.

Convert Images Now Browse all tools

No account needed

Files stay on your device

Instant results

Convert ImagesWithout Losing Quality.