Sites and apps similar to Koolyz include FFmpeg, which is free and open source. Other options are Penpot, Affinity, delphitools and Canva. There's no shortage of Image Optimizers like Koolyz, with more than 100 alternatives for Windows, Mac, Linux, Android and iPhone.
Desktop app for offline batch compression and conversion supporting over 100 formats, including images, videos, GIFs, and PDFs. Features drag-and-drop, reusable presets, folder monitoring, preview, trimming, clipboard compression, context menu, shortcuts, and automation.
United Kingdom
ImageOptim is excellent for publishing images on the web (easily shrinks images “Saved for Web” in Photoshop). It's useful for making Mac and iPhone/iPad applications smaller (if you configure Xcode to allow better optimization).
Poland
EU
Offers photo filters, magic effects, drawing tools, stickers, and customizable text. Includes collage layouts, color adjustments, and cropping. Features a built-in camera, live effects, drawing layers, and direct sharing to a global community and external networks. Multi-language support.
United States
Wireless Network Watcher is a small utility that scans your wireless network and displays the list of all computers and devices that are currently connected to your network.
GermanyEU
Compress and compare images with different codecs, right in your browser.
United States
Android-focused port scanner quickly discovers hosts and delivers comprehensive network data. Displays local and remote device info, enabling detailed analysis for systems security.
United States
Free vector graphics editor offering real-time collaborative editing, browser and cross-platform desktop support, scalable design tools, AI, EPS, SVG, PNG, JPEG import/export, grouping and shape manipulation, and intuitive pen and freehand drawing options.
Singapore
Sejda helps with your PDF tasks: edit existing text, split, merge, extract, compress, export to other formats and more.
NetherlandsEU
Optimize PNG, JPEG, WebP, and SVG images efficiently with flexible lossless and lossy compression modes, metadata control, and safe mode to avoid data loss, using tools like oxipng, jpegoptim, scour, and cwebp, enhancing image storage and load efficiency.
GermanyEU
Smallpdf is the first PDF Software you will actually like. The perfect gateway to productive, portable and cost-efficient document management solutions in your everyday life.
Switzerland
CloudConvert is a online file conversion tool. more than 200 different audio, video, document, ebook, archive, image, spreadsheet and presentation formats supported.
United Kingdom
