JPEG Quality 10 (512px)
The same 512px source saved at JPEG quality 10 — part of a q10/50/90 ladder for comparing compression artefacts at a glance.
A JPEG compression ladder
The same source saved at quality 10/50/90 for comparing compression artefacts and quality settings.
JPEG Quality 50 (512px)
The same 512px source saved at JPEG quality 50 — part of a q10/50/90 ladder for comparing compression artefacts at a glance.
JPEG Quality 90 (512px)
The same 512px source saved at JPEG quality 90 — part of a q10/50/90 ladder for comparing compression artefacts at a glance.
Baseline JPEG
The fruit still life as a baseline (sequential) JPEG — paired with a progressive JPEG of identical content for testing decode order and progressive-rendering support.
Progressive JPEG
The same photo as a progressive JPEG (loads coarse-to-fine) — the twin of the baseline JPEG, for testing progressive decoding and byte-order handling.
ZST — Zstandard Single File
A text file compressed with Zstandard (.zst) — the container-free codec on its own — for testing zstd decompression and codec detection.
LZ4 — Single File
A text file compressed with the LZ4 frame format (.lz4) — the container-free codec on its own — for testing LZ4 decompression and codec detection.