Test File Generators
Online generators for placeholder and test files: sample video, audio, images, PDFs and documents, dummy files of any size, codec sample packs, sine-sweep WAVs and TV test patterns for QA and demos.
Sample Video Generator
Download or generate sample video for player testing — 1080p / 4K H.264 MP4 catalog plus on-the-fly WebM and MP4 via MediaRecorder.
Sample Audio Generator
Download or generate sample audio for testing — 1 kHz tone, pink noise, custom sine/white/pink at 44.1/48/96 kHz, 16/24-bit, mono/stereo WAV.
Dummy File Generator
Generate dummy files of any size from 1 KB to 10 GB. Zero, random, text or pattern bytes, custom extension, instant browser download.
Test Image Generator
Generate test images for QA — color bars, grayscale, gradient, checker, grid up to 4K. Export as PNG, JPEG or WebP with adjustable quality.
Test PDF Generator
Generate test PDFs in your browser — lipsum text, multi-page sections, big table or blank. A4/Letter/Legal/A3, up to 500 pages, custom title.
Sample Document Generator
Generate sample documents in browser — CSV, JSON, XML, RTF, Markdown, TXT with deterministic rows. Custom row/column count up to 100 000.
Codec Sample Pack
Download codec test files — H.264, H.265 HEVC, AV1, VP9, VP8 in MP4 and WebM. Verify your player and pipeline support with live browser probe.
Sine Sweep WAV Generator
Generate log or linear sine sweep WAV files for REW, ARTA and room measurement. 20 Hz–20 kHz, 44.1/48/96 kHz, 16/24-bit, full channel routing.
TV Test Pattern Generator
TV calibration patterns for projectors and displays — SMPTE bars, PLUGE, grayscale, focus star, HDR window, overscan. PNG up to 8K plus MP4 loops.
Corrupted File Generator
Generate corrupted test files for error-path QA — truncate, zero magic bytes, bit-flip, zero middle or rename extension. Browser-based.
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