# Samplelib

> Free sample and test files for download: images, audio, video, documents, data formats and advertising creatives, plus in-browser tools and hardware test pages. Every file was produced by the project authors, is free of licence restrictions and can be used for any purpose, including commercially.

The site is available in 5 languages: English (default), Russian (/ru/), Spanish (/es/), Portuguese (/pt/), Chinese (/zh/). Every page exists in all five, with hreflang and a shared URL shape: `https://samplelib.com/{locale}/{page}.html`.

## Collections by parameter

These pages cut the library by resolution, duration, sample rate and file weight rather than by format, and reuse the same files as the format pages.

- [Sample images](https://samplelib.com/sample-images.html): 4K, 2K, Full HD and HD, ready-made 1, 5 and 10 MB files for upload limit tests, photographs and single-pixel images (JPEG, PNG, WebP)
- [Sample videos](https://samplelib.com/sample-videos.html): 4K, Full HD, HD and 360p, clips from 5 to 30 seconds, files from 1 to 50 MB (MP4, WebM)
- [Sample audio](https://samplelib.com/sample-audio.html): 8, 16, 44.1, 48 and 96 kHz, mono and stereo, from 3 seconds to half an hour, from 50 KB to 151 MB (MP3, WAV)

## Image formats

- [JPEG](https://samplelib.com/sample-jpeg.html): from a single pixel up to 4K (3840x2160), ready-made 1, 5 and 10 MB files, plus progressive, CMYK and EXIF variants
- [PNG](https://samplelib.com/sample-png.html): Full HD and 4K, 5 and 10 MB files, transparency (alpha), animated APNG, interlaced and indexed colour
- [WebP](https://samplelib.com/sample-webp.html): lossy, lossless, transparent, animated, Full HD and 4K
- [SVG](https://samplelib.com/sample-svg.html): vector graphics test files
- [GIF](https://samplelib.com/sample-gif.html): static and animated, including variable and zero frame delay

## Audio formats

- [MP3](https://samplelib.com/sample-mp3.html): synthesiser melodies (3 to 15 seconds), English speech (1 to 30 minutes), CBR 64 to 320 kbps and VBR, with ID3v1 and ID3v2 tag variants
- [WAV](https://samplelib.com/sample-wav.html): uncompressed PCM, melodies and speech, 8, 16, 44.1, 48 and 96 kHz, mono and stereo

## Video formats

- [MP4](https://samplelib.com/sample-mp4.html): H.264/AAC, 5 to 30 seconds, 360p to 4K, plus H.265 and VP9 in an MP4 container
- [WebM](https://samplelib.com/sample-webm.html): VP9/Opus, 5 to 30 seconds, 360p to 4K, plus the VP8/VP9 by Opus/Vorbis codec matrix

## Documents

- [PDF](https://samplelib.com/sample-pdf.html): empty, single-page, multi-page, tables, landscape, password-protected
- [DOCX](https://samplelib.com/sample-docx.html): blank, formatted with a table, a CV sample, an 18-chapter document
- [PPT](https://samplelib.com/sample-ppt.html): blank, a demo deck with lists, table, chart and image, a 20-slide deck
- [Excel](https://samplelib.com/sample-xls.html): spreadsheets of different complexity
- [HTML](https://samplelib.com/sample-html.html): minimal skeleton, forms, tables, semantic HTML5, inline SVG, responsive layout, large document
- [ZIP](https://samplelib.com/sample-zip.html): empty, single-file, nested directories, 100 small files, project mock-up, archives of 1 to 50 MB

## Data formats

- [JSON](https://samplelib.com/sample-json.html): structures of different shape and size for parser tests
- [CSV](https://samplelib.com/sample-csv.html): encodings, delimiters, quoted fields, edge cases, large files of 5 to 30 MB
- [XML](https://samplelib.com/sample-xml.html): encodings, namespaces, XSD schemas, CDATA, entities, SOAP and WSDL, malformed documents, large files
- [Parquet](https://samplelib.com/sample-parquet.html): simple, typed, nested, large, with snappy and gzip compression
- [Avro](https://samplelib.com/sample-avro.html): simple, typed, nested, large, with the schema embedded and a deflate variant
- [SQLite](https://samplelib.com/sample-sqlite.html): a single table, a relational schema with foreign keys, indexes and views, a large table, an empty schema
- [GeoJSON](https://samplelib.com/sample-geojson.html): Point, LineString, Polygon, multi-geometries, FeatureCollection with bbox, a large dataset (RFC 7946)
- [GPX](https://samplelib.com/sample-gpx.html): waypoints, routes and tracks with elevation and time
- [KML](https://samplelib.com/sample-kml.html): placemarks, lines, polygons, styles and folders for Google Earth and GIS
- [ICS](https://samplelib.com/sample-ics.html): events, meetings, recurring events, tasks, reminders (RFC 5545)
- [VCF](https://samplelib.com/sample-vcf.html): vCard 3.0 and 4.0, minimal, full, several contacts in one file (RFC 6350)
- [PCAP](https://samplelib.com/sample-pcap.html): network captures for Wireshark and tcpdump: TCP, HTTP, DNS, DHCP, ICMP, RTP, 802.11 with radiotap, VLAN, IPv6, plus pcapng, empty, truncated, nanosecond and big-endian files
- [robots.txt](https://samplelib.com/sample-robots-txt.html): ready-to-use files: a plain working one, allow-all and disallow-all, the defaults of WordPress, WooCommerce, Drupal, Magento 2, Shopify and Joomla, blocking AI crawlers and SEO scanners, crawl-delay, faceted navigation, plus edge cases with a BOM, CRLF, wildcards, broken syntax and a file past the 500 KiB parse limit

## Advertising

- [IAB banner creatives](https://samplelib.com/sample-ad-300x250.html): 160x600, 240x400, 300x50, 300x250, 320x50, 468x60, 728x90, 970x90, 970x250
- [HTML5 banners](https://samplelib.com/sample-html5-banner.html): ZIP creatives from a static image with clickTag to rich media with video, ready for Google Ads, DCM and DV360
- [VAST](https://samplelib.com/sample-vast.html): VAST 2.0, 3.0, 4.0 and 4.2 tags, wrapper, skippable, companion, podded, audio
- [OpenRTB](https://samplelib.com/sample-openrtb.html): bid requests and responses for 2.5, 2.6, 3.0 and Native 1.2
- [ads.txt](https://samplelib.com/sample-ads-txt.html): minimal, full with DIRECT/RESELLER and variables, multi-SSP template

## Browser tools

Everything runs locally in the browser, no upload to any server.

- [Lorem ipsum](https://samplelib.com/sample-lipsum.html): placeholder text
- [Base64](https://samplelib.com/sample-base64.html): ready-made strings plus an encoder and decoder
- [UUID](https://samplelib.com/sample-uuid.html): v4, v7, nil, bulk generation
- [JWT](https://samplelib.com/sample-jwt.html): decoder for header, payload and signature with human-readable exp/iat
- [Hash](https://samplelib.com/sample-hash.html): MD5, SHA-1, SHA-256, SHA-512 for text and files

## Hardware test pages

Each combines downloadable test files with a tool that runs in the browser.

- [Printer test page](https://samplelib.com/printer-test-page.html): PDF and PNG in A4 and Letter with RGB/CMYK colour bars, greyscale, nozzle check, alignment grid, resolution test
- [Monitor test](https://samplelib.com/monitor-test.html): full-screen check for dead and stuck pixels, backlight bleed, gradients and geometry, plus solid-colour sets in 1080p, 1440p and 4K
- [Speaker and headphone test](https://samplelib.com/speaker-test.html): test tones from 20 Hz to 15 kHz, sweeps, left/right and phase checks, pink and white noise, a 5.1 file, plus a tone generator on Web Audio
- [Microphone test](https://samplelib.com/microphone-test.html): level meter, live waveform, input settings from the browser, and a recording you can play back and save

## Download URL patterns

Files live at `https://samplelib.com/{directory}/{filename}` and are served with `Content-Disposition: attachment`.

- Format directories match the format name: `/png/`, `/mp3/`, `/mp4/`, `/pdf/`, `/zip/`, `/parquet/` and so on
- Test-page assets sit in their own directories: `/printer/`, `/monitor/`, `/audio-test/`, `/pcap/`, `/robots-txt/`
- Smaller previews used on the pages themselves: `https://samplelib.com/preview/{format}/{filename}` for JPEG, PNG, GIF, WebP, MP4, WebM and banner creatives
- Examples: `/png/sample-boat-400x300.png`, `/mp3/sample-speech-5m.mp3`, `/mp4/sample-5s-720p.mp4`, `/audio-test/test-tone-1khz.wav`

## Licensing

All files were created by the project authors. They are free to download and use for any purpose, including commercial, with no attribution required and no licence restrictions. See [the licence page](https://samplelib.com/license.html) and [terms of use](https://samplelib.com/terms.html).