Free Sample Files & Dummy Generator for Testing & QA
Download standardized, clean sample files in PDF, DOCX, TXT, Images, Datasets, and Archives. Precision-sized from 50KB up to 1GB for stress testing, upload limits, and API validation.
Popular Sample Files
Quickly download the most frequent sizes used for file upload testing and QA verification.
10 MBpdf
Download a valid sample PDF file 10 MB in size containing the 2026 Global AI & Machine Learning Industry Report. Perfect for testing file upload systems, email attachments, PDF viewers, and cloud storage APIs.
50 MBdocx
Download a sample Microsoft Word DOCX file 50 MB in size containing authentic 2026 AI industry analysis chapters. Useful for testing document parsers, Word processors, and enterprise file upload endpoints.
Complete AI Report (1 MB)txt
Download the complete 1 MB 2026 AI & Machine Learning Industry Report covering reasoning models, compute economics, and enterprise safety.
100 MBzip
Download a valid sample ZIP archive 100 MB in size containing extractable 2026 AI research reports, benchmark CSV datasets, and documentation.
5 MBjpg
Download a sample JPEG image 5 MB in size for image processing pipelines, responsive CDN testing, and thumbnail validation.
Browse by File Format
Standard dummy files available in 8 widely used file formats with sizes ranging from 50KB to 1GB.
PDF Document
Standard Portable Document Format files for rendering, printing, and upload testing.
Microsoft Word (DOCX)
OpenXML word processing files for document parsers, converter APIs, and office software.
Plain Text (TXT)
Authentic 2026 AI industry whitepapers, multilingual terminology, and ASCII specs.
JPEG Image (JPG)
Compressed sample JPEG images for thumbnail generators, image CDNs, and media galleries.
PNG Image (PNG)
Lossless PNG images with alpha channel transparency for UI testing and graphic pipelines.
Comma Separated Values (CSV)
Authentic 2026 AI model benchmark datasets with reasoning scores and pricing.
JavaScript Object Notation (JSON)
100% valid JSON datasets of 2026 frontier AI models and LLM evaluation metrics.
ZIP Archive (ZIP)
Compressed archive files containing dummy contents for extractor and decompressor tests.
Custom Dummy File Generator
Generate custom test files with exact byte sizes instantly inside your browser.
Browser generator supports up to 100MB directly. For files up to 1GB, browse our pre-built downloads.
Why Use Standardized Dummy Files in QA & Development?
Real-world software requires thorough boundary and edge-case testing. Using standardized test files ensures your application reliably handles file size quotas, MIME validation, and stream ingestion across various environments.
Upload Limits & Quotas
Test web server limits (such as Nginx `client_max_body_size`, Cloudflare 100MB payload limit, and AWS API Gateway 10MB limits) with files matching threshold boundaries.
Memory Leak Profiling
Feed large 100MB, 500MB, or 1GB files to document parsers, image processors, and stream readers to inspect Node.js V8 heap allocations and prevent Out-Of-Memory (OOM) crashes.
Automated CI/CD Integration
Use our direct cURL snippets inside GitHub Actions, GitLab CI, and Docker test scripts to download mock assets on-demand without committing heavy binaries to your Git repository.
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Frequently Asked Questions
Are these sample files safe and virus-free?
Yes, 100%. All sample files are generated programmatically with valid headers and clean padded binary/text data. None of our files contain macros, executables, or malicious scripts.
How fast are the file downloads?
All files are served directly from Cloudflare R2 object storage with global edge caching across 300+ worldwide locations, providing maximum download speeds and zero bandwidth throttling.
Can I hotlink or use the API in my automated scripts?
Yes, you can use our `/api/download?file=...` endpoint with standard tools like `curl -L` and `wget` in your CI/CD test pipelines.