JPEG XL Toolbox vs Coverpic

This application offers various JPEG XL (JXL) functionalities. Supports: * ProRAW DNG -> DNG - Lossless compression, about 1/2 of the original size - Lossy compression, about 1/6 of the original size * ProRAW DNG -> JXL - Lossy conversion, about 1/7 of the original size * DNG -> JXL - Lossy conversion, about 1/7 of the original size * HEIF -> JXL - Lossy conversion * JPEG -> JXL - Lossless conversion Features: * Keeps the internal metadata * Preserves 16-bit depth * Preserves HDR display effects in iOS Photos App * Batch conversion capabilities === CHNAGELOG === ### version 0.3.2 * Bumps libjxl to v0.10.2 * Adjusts settings view ### version 0.3.1 * Improves processing speed significantly * Adds lossless mode for ProRAW compression * Uses 7 as the default effort ### version 0.3.0 * Adds ProRAW direct compression ### version 0.2.1 * Settings page adjustment * Some UI improvements ### version 0.2.0 * Adds Pro version purchase * Adds several ProRAW parameters in settings for Pro version * Adds decoding speed in settings * Low memory mode now allows devices with 4GB RAM to convert 48M ProRAW ### version 0.1.2 * Uses lossless encoding for JPEG automatically * Adds Modular mode support * Adds Progressive mode support * Adds Colorspace support * Keeps HDR effect when converting from ProRAW ### version 0.1.1 * Adds support for ProRAW to lossy JPEG XL conversion * Adds Batch conversion * Keeps DNG Metadata in JXL * Adds quality and effort in settings

Hide photos & text inside normal-looking images. Want to send your friend a secret message that looks like a regular photo? Or keep some private pics safe without uploading them to the cloud? Coverpic lets you hide images and text inside another photo — protected by a password. It looks like an ordinary picture, but only people with the password can unlock what's inside. -- Why it's fun -- Hide anything Photos, text messages, notes — lock them inside a cover image. Password only Set a password and share it with your trusted friends. No one else can peek. Totally offline Everything happens on your phone. Nothing gets uploaded anywhere. Ever. Looks totally normal The encrypted file looks like a regular photo. Your secrets stay hidden in plain sight. History included Check what you've hidden before, re-save or share anytime. -- Perfect for -- • Secret messages for your bestie or partner • Surprise reveals ("look closer") • Private photos you don't want in your camera roll • Pranks and hidden notes • Keeping memories safe without cloud backup Heads up: If you post hidden images on social media, they might get compressed and the secret could be lost. Always keep the original file! Privacy should feel easy, not scary. Download Coverpic and start hiding secrets today. Privacy Policy: https://coverpic.pages.dev/privacy Terms of Service: https://coverpic.pages.dev/terms