PNG is a file format used to compress high-quality images and is known for its ability to have "transparent" backgrounds. This makes PNG ideal for web design and graphics work, as the images can blend seamlessly with any background on the page. In addition, PNG offers lossless compression, meaning that images do not lose quality when compressed. This makes PNG the format of choice for graphics that require clarity and detail.

ISO file format is a disk image format used for storing and transporting data. ISO represents an exact copy of the file system usually used for optical disks (CD, DVD, Blu-ray). ISO files keep the entire disk structure and contents in a single file, making it easier to share data. This format is widely used, especially for software distribution, system backups and operating system installations. Translated with DeepL.com (free version)

A zip file is a popular file format that compresses multiple files and folders into a single file, allowing it to take up less space. This format saves both time and space when storing and transferring files. It is often preferred when sharing files over the internet or taking backups. The Zip format is an indispensable part of the digital world due to its wide usage and compression efficiency.

YAML (.yaml, .yml) is a lightweight and readable format used for configuration files and data storage. It is preferred in software projects as an alternative to JSON and XML. It is widely used with tools such as Kubernetes, Ansible and Docker.

On this page you can download free test files of the Executable (.exe) file format, the basic building block of computer programs.

bzip2 or BZ2 is a free software/open source software data compression algorithm developed by Julian Seward. Seward's program was released in 1996 with version 0.15. The stability and widespread use of the data compressor increased over time and version 1.0 was released in late 2000.bzip2 compresses most files more efficiently but more slowly than traditional methods such as gzip or ZIP. In this respect, it is quite similar to other next-generation compression algorithms. However, in most cases bzip2 does not even come close to the compression efficiency of the 7z and RAR formats. You can find example bzip files on this page.

WebP is a modern image format designed to provide superior compression and quality characteristics compared to traditional image formats. With smaller file sizes, WebP increases page load speeds without compromising image quality. Its widespread support across browsers and platforms has made it a popular choice for web developers aiming to optimise websites for faster performance.

On this page you can examine sample files with the .7z extension and test the use of the format. 7z files created for testing purposes for developers, testers and computer users

PDF stands for Portable Document Format and was developed by Adobe Systems. It combines rich content such as text, images and hyperlinks, allowing users to share documents across different operating systems and devices with the same view. Its wide use has made it indispensable for electronic document sharing. Thanks to its open-source readers and software, viewing and editing documents in PDF format is easy and accessible.

TSV (Tab Separated Values) is a simple text file format where data is separated by a tab character. It is similar to CSV but uses tabs instead of commas to separate columns. This format is widely used for storing, transferring and processing large data sets.

The RTF (Rich Text Format) file format is a versatile text file format developed by Microsoft. RTF files can contain formatted text, images and other elements, making them suitable for a variety of document types. Unlike plain text files, RTF supports text formatting options such as bold, italic, underline and font changes. On this page you can find a example (sample-dummy) rtf file of any size.

JSON File (JavaScript Object Notation) is one of the most widely used data formats on the internet today. JSON is a format designed for easy storage, transmission and processing of data. Being both human-readable and computer-processable has made JSON very popular in web-based applications and services. Json Files can often be used in APIs and tests. Here you can download the dummy (sample) json files you need for free.