500-image format performance test
A controlled corpus comparing JPG, WebP and AVIF size, encode time and quality at multiple settings.
Image format research you can inspect and repeat
Run benchmarks on your own images, download the raw data and see exactly how each result was produced. Files remain on your device.
Available now · live benchmark
JPG vs WebP vs AVIF in your browser
Compare encoded size, processing time and a disclosed PSNR quality proxy across up to 500 images. Select formats and quality levels, then export every observation as CSV or JSON.
- Processing
- Local browser canvas
- Raw data
- CSV and JSON export
- Reproducibility
- Method and environment included
- Privacy
- No image upload
Studies designed around real decisions
Each publication will include its method, sample, conditions, raw and summary data, limitations, test date and correction history.
Browser image-format report
Versioned decode and encode capability results, separated by browser, operating system and codec.
Local vs cloud converter study
A reproducible network-observation protocol documenting where files and telemetry travel.
HEIC/JPG metadata preservation
Tests EXIF, orientation, timestamps, location and colour-profile behavior across conversion paths.
Website image optimization benchmark
Measures bytes, visual quality and page-delivery impact across realistic responsive-image strategies.
Best quality settings benchmark
Maps practical quality thresholds by image type instead of presenting one universal recommendation.
Publication standard
What every result must disclose
- Methodology: input selection, codec path and calculation formulas.
- Test conditions: date, browser, operating system and relevant device details.
- Evidence: sample count, raw observations, summaries and accessible charts.
- Boundaries: limitations, failed encodes and conclusions the evidence cannot support.
- Reuse: downloadable machine-readable results and a stable publication version.
Use or review this research
Developers, researchers and journalists can cite the stable page and download its underlying results.