Hexwilt Logo

    Hexwilt

    Professional
    Precision Fuzzing

    Inject controlled byte-level chaos

    Byte Flip sprinkles reversible corruption across your file, keeping structure mostly intact so you can study subtle breakages.

    Visual glitch previews • CSV delimiter chaos • Document viewers that must show helpful error states

    How Byte Flip works

    Byte Flip mutates targeted byte ranges while respecting overall file length. It is ideal when you want the file to open - but misbehave - surfacing nuanced defects like off-by-one errors, glitchy renders, or schema drift.

    Structure-aware targeting

    We bias the flips toward content regions (streams, rows, media blocks) instead of headers so you can observe soft failures before hard crashes.

    Intensity slider

    Control how many flips occur. Low intensity mimics minor user edits gone wrong; high intensity approaches full corruption without deleting the file.

    Deterministic seeds

    Replay identical mutations by reusing the same seed inside the CLI or browser tool.

    Workflow recipe

    1. 1.

      Load a staging sample

      Drop in the asset you want to fuzz - no uploads occur.

    2. 2.

      Set intensity

      Pick a percentage. Start at 30% for subtle anomalies, then iterate upwards until the workflow collapses.

    3. 3.

      Log the results

      Download the corruption report to capture flipped byte counts, seeds, and validation hints for your QA ticket.

    Test plan checklist

    • Record expected versus actual behavior for playback, parsing, or rendering
    • Capture screenshots of UI glitches caused by the flipped bytes
    • Store corruption reports with your regression fixtures

    Where to use Byte Flip

    • Visual glitch previews
    • CSV delimiter chaos
    • Document viewers that must show helpful error states

    Recommended file types

    Byte Flip FAQ

    Practical answers for engineers using Byte Flip in QA, security, and creative workflows.

    Run Byte Flip on your next test file

    Scroll down to the corruption workspace, drop in a sample, and capture the report for your documentation.