BytCrush Image Compression

BytCrush is Warcal’s own image-compression engine, built into a WordPress plugin. It runs entirely on your own server, with no API keys, no monthly quotas and no images leaving your site.

• One click, whole library. Press “Optimize all images” and watch it work, with a live progress ring, savings counter and activity log. Pause and resume any time.
• Originals are never lost. Every file is backed up byte-for-byte before it is touched. Restore one image or your entire library with a click.
• Every size, not just the original. Thumbnails and every size WordPress or your theme generates are optimized too.
• WebP and AVIF, served automatically. Via <picture> tags that work on any host and CDN, or via server rewrite rules on Apache/LiteSpeed.
• Tuned for quality. EXIF rotation is applied before metadata is removed, colour profiles are preserved, JPEG quality is never raised above the source’s own, and a file is never replaced by a bigger one.
• Automatic. New uploads are optimized as soon as WordPress creates their sizes.
• Speaks your language. Included in English, German, French, Spanish, Italian, Dutch, Polish, Portuguese (Portugal) and Swedish.

Best-practice defaults

• Balanced compression: JPEG 82 progressive with 4:2:0 chroma, lossless-max PNG, WebP 80 (the BytCrush engine’s recommended setting)
• Metadata stripped, colour profile kept
• Originals over 2560px scaled down
• WebP generated and served with picture tags
• Backups on, auto-optimize on
• Background optimization: click once and close the tab, and the whole library keeps optimizing on your server

BytCrush Pro (separate add-on)

Everything above is free and fully functional. BytCrush Pro is a separate paid plugin from Warcal that adds: