Observed arrival · 2026-09-20
Convert Pictures, Then Show the Numbers
A local image-format benchmark that rewrites one picture as JPEG, PNG, WebP, and AVIF, then compares the actual files.
○Open
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$Paid
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✦Pretty
●Pro
◎Niche
◉Human
⚑Risk
ƒJS
- For
- People choosing an image format for a specific file
- Worth noticing
- It searches each encoder's quality setting to match a requested visual distance, then reports the resulting byte count.
Field notes
The benchmark searches each format's own quality parameter rather than applying one shared quality number across encoders. Results include the produced file's byte length, difference from the source, structural-similarity measurement, selected quality value, and local encode time. The interface also supports visual checking through a draggable divider, zoom, and a temporary space-bar view of the original.
Observed signals
Read the marks
Editorial observations of this landing page, not a rating.
○OpenPublic substance visible
✦PrettyNotable craft visible
●ProPolished or operationally mature
◎NicheUnusually specific use
ƒJavaScriptBrowser-side code central
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