Convertify is your ultimate free & offline file converter suite for Windows. Convert images (inc. AI upscale), video, audio, docs, archives & eBooks (180+ formats) privately on your PC.
United States
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Koolyz Alternatives
Koolyz is described as 'Your ultimate collection of 100+ free online tools, designed to simplify everyday tasks in seconds. Fast, smart, and easy to use' and is an website. There are more than 100 alternatives to Koolyz, not only websites but also apps for a variety of platforms, including Windows, Mac, Linux and Android apps. The best Koolyz alternative is FFmpeg, which is both free and Open Source. Other great sites and apps similar to Koolyz are Penpot, Affinity, Canva and Figma.
Alternatives list
Icecream Image Resizer is a program for professional image resizing that features options for completing all sorts of tasks. Program’s clear and intuitive interface and simple and effective controls give the best user experience one can think of while resizing images.
Cost / License
- Free
- Proprietary
Platforms
- Windows
+1
Optimize pictures without quality lossless. With Black Bird Image Optimize - you can reduce the size of your photos several times without quality loss!.
+1
ToolsForImage is free and open-source platform for image compression, resizing, cropping, format conversion, rotation, watermarking, face blurring, and more.
Cost / License
- Free
- Open Source (MIT)
Platforms
- Online
Convert, optimize, and resize your images online in only one easy click and for free with the Resizing.app tool. Come on, it doesn’t get easier than that!.
A free web app providing 200+ online tools for developers, including JSON formatters, PDF mergers, code converters, data generators, and more—no signup required.
Cost / License
- Free
- Proprietary
Platforms
- Online
Convert, compress, and optimize images, PDF files with our powerful in browser tools. No data is sent, everything happens in your browser using web assembly. That means very less waiting to process your files!
A versatile online image compression tool that prioritizes your privacy. It handles everything locally in your browser—nothing is ever uploaded. Convert between JPG, PNG, GIF, and WebP, resize by dimension or ratio, and fine-tune quality with a live preview.
ConvertOnline is a fast and secure online file converter that supports hundreds of formats — including documents, images, videos, audio files, archives, and more.
Cost / License
- Freemium
- Proprietary
Application types
Platforms
- Online
- Software as a Service (SaaS)
+5
ConvertAPI is a fast and fault-tolerant web service used by software developers to convert Word documents, Excel spreadsheets, PowerPoint presentations, HTML documents, PDF files, and numerous other formats.
Cost / License
- Free Personal
- Proprietary
Platforms
- Mac
- Windows
- Linux
- Online
- Software as a Service (SaaS)
+1
PDF Shelter processes PDF documents on your own browser, avoiding data transfers and the risk of sharing data with third-parties.
Cost / License
- Free
- Proprietary
Platforms
- Online
+4
A professional photo size reducer for Mac which will reduce PNG, JPEG and GIF images size with LOSSLESS quality in a batch.
+1
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