New WEBP Support

What’s included

• WEBP → PNG (lossless option) for workflows that require alpha and exact pixel output.
• WEBP → JPEG for broad compatibility with print pipelines and older editors.
• Consistent color conversion (sRGB) and predictable stripping of unwanted metadata.

Privacy + metadata

For most image conversions we strip EXIF metadata by default to reduce accidental data leakage and to keep outputs predictable across formats.

1234input: WEBP
  → strip EXIF
  → set quality
  → output: PNG or JPEG

Alpha and backgrounds (PNG vs JPEG)

• PNG keeps transparency (alpha) — best for logos and crisp edges.
• JPEG has no transparency: transparent pixels must be filled with a background color.

How this helps STL workflows

If your logo or icon starts as WEBP, convert it to PNG first to preserve crisp edges and transparency. Then feed the PNG into the STL converter.

Lossless vs lossy: which output to pick

WEBP itself can be either lossy or lossless, but the output format you choose decides what happens next. PNG is always a lossless raster, so it reproduces every pixel exactly and keeps transparency — ideal for logos, icons, UI screenshots, and anything with sharp edges. JPEG is always lossy and has no alpha channel, but it produces much smaller files for photographic content with smooth gradients.

• Choose PNG when transparency, text, line art, or pixel-exact output matters.
• Choose JPEG when the source is a photo and small file size beats perfect edges.
• Re-encoding an already-lossy WEBP into JPEG compounds compression — convert once and keep an original.

Transparency and background fill

Because JPEG cannot store transparency, any transparent pixels in your WEBP have to be flattened onto a solid background during conversion. If you do not pick a color, transparent areas commonly fall back to white or black, which is the single most common surprise when converting a transparent logo to JPEG. When in doubt, convert to PNG first and only flatten to JPEG once you have decided on the background.

Common pitfalls to avoid

• Color shifts: source files tagged with a non-sRGB profile can look different after conversion; we normalize to sRGB for predictable results.
• Animated WEBP: only the first frame is meaningful when converting to a static PNG or JPEG.
• Upscaling expectations: conversion changes the format, not the resolution — a small WEBP stays small.