Image Format Converter

PNG vs JPEG vs WebP vs AVIF in 2026

This tool emits PNG, JPEG, and WebP because those three cover every browser you're realistically shipping to. Here's how to pick between them — and why AVIF is the notable absence.

• WebP is the safe default for photos on the web. Per caniuse.com/webp, WebP has ~97% global browser support (Safari joined in 14.0, September 2020). On a typical 2400x1600 JPEG at quality 85, re-encoding to WebP q=80 drops the file from about 480 KB to 300 KB with no visible difference at 1x zoom.
• JPEG is the format you ship when you don't control the consumer. Email clients, older Android WebViews, legacy CMS thumbnailers — anything older than ~2018 may choke on WebP. JPEG at q=82 is still the lingua franca.
• PNG is for anything with sharp edges, transparency, or text. Convert a screenshot of code to JPEG at q=90 and the character edges fringe with DCT ringing; the same screenshot as PNG-8 with a 256-color palette is usually smaller and sharper.
• AVIF beats WebP by ~20–30% at matched quality but isn't in this tool yet. Support is at roughly 94% (caniuse.com/avif), but Canvas API encoding via toBlob('image/avif') is still spotty — Chrome 115+ supports it, Firefox does not as of this writing. If you need AVIF, run Squoosh (it bundles the libavif WASM build) or a CDN like Cloudflare Images.

Two tradeoffs this tool can't fix: Canvas-based re-encoding strips EXIF metadata (orientation, GPS, capture date) — if you need that preserved, use exifr or a native tool like ImageMagick. And every lossy-to-lossy hop compounds error, so converting JPEG → WebP → JPEG is strictly worse than going back to the original source once.