Sample files library
A completely free library of test files available to download without licensing restrictions. The files are designed for developers, designers, testers, advertisers, and anyone else who needs demos and testing files.
Images
Fill a prototype with content or check how your software behaves. From a single pixel up to 4K, ready-made 1, 5 and 10 Mb files. Available: by size and resolution, JPEG, PNG, SVG, GIF, WebP
Audio
Samples of music of various lengths and sizes for the development of mobile applications, websites, or audio advertising testing. Including the author's melodies, you won't find them anywhere else :-) Formats: MP3, WAV
Video
A collection of sample videos of varying lengths and sizes to test everything related to video. Formats: MP4, WEBM
Ad formats
A set of multi-coloured sample banners for testing advertising campaigns. We've got banners for most popular IAB sizes: 728x90, 300x250, 300x50, 320x50, 970x250, 970x90
AdTech & programmatic
Ready-made files matching IAB Tech Lab specs for debugging video players, SSP/DSP, header bidding and ad servers: VAST, OpenRTB, ads.txt, HTML5
Data
Interchange, storage and geodata formats for testing pipelines, parsers, databases and maps. Formats: JSON, CSV, XML, Parquet, Avro, SQLite, GeoJSON, GPX, KML, ICS, VCF
Tools
Generators and encoders right in your browser — nothing is uploaded to the server. Available: lorem ipsum, base64, uuid, jwt, hash
Test & calibration
Test pages for checking your hardware. Available: printer test, monitor test