About · English
Methodology
How Krymp benchmarks compression: sample files, settings, scoring and reproducibility.
Local in your browserFile never leaves your deviceNo account · no emailFree · no adsNote: The tool UI is in Swedish — controls are visual (drag, pick, download). File processing is identical.
We test compression tools on a fixed set of sample files (images, PDFs, video) with documented settings.
Results are reproducible — the sample set and scripts are public on GitHub.
Private. Files are processed in your browser. Nothing is uploaded.
Free, unlimited. No account, no watermark, no daily caps.
How it works
- 1Sample set. Public, fixed set of test files.
- 2Settings. Documented per tool and per run.
- 3Scoring. Size reduction vs visible quality (SSIM/PSNR + manual review).
FAQ
- What is tested?
- File size reduction, visible quality, speed and privacy posture.
- Is the sample set public?
- Yes, on GitHub.
- Updated how often?
- Quarterly, or when a tool changes significantly.