外掛標籤
開發者團隊
原文外掛簡介
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
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:
Page speed audit: opens any page on a phone and a laptop, scores its images, explains every problem (late main image, oversized files, layout shift, missing WebP) and fixes it in one click, with no API keys
Ultra compression level (palette PNGs)
Smart target file size (100 / 200 / 500 KB presets), the BytCrush Auto-Compress algorithm
External services
Image optimization runs entirely on your own server. Your images are never uploaded anywhere.
This plugin uses Freemius for opt-in usage data, license activation and Pro upgrades. It connects to Freemius only when you:
opt in on the welcome screen, which sends your site URL, WordPress and PHP versions, plugin version, and your name and email address;
activate a license key or start the Pro trial, which sends the license key and your site URL;
open the upgrade or pricing page, which loads the Freemius checkout.
If you skip the opt-in, nothing is sent until you choose to activate a license or upgrade. Freemius terms of service and privacy policy.
