Particle Image Velocimetry Software for Windows

PIV Analyzer

Analyze particle images and videos, calculate velocity fields with cross-correlation, and export vector overlays, heatmaps, displacement maps, and data tables.

Download Free Beta View Results

Windows: Standalone desktop app
PIV: Multi-pass cross-correlation
Export: Images, video, CSV, Excel

Built for labs, classrooms, and engineering workflows

Turn particle motion into measurable velocity fields.

PIV Analyzer focuses on a practical desktop workflow: import image pairs or videos, tune PIV parameters, inspect the resulting flow field, and export visual or numeric data for reports, papers, and follow-up analysis.

Cross-correlation PIV

Compute local displacement vectors from particle image pairs with configurable window size, search range, overlap, and sub-pixel peak detection.

Velocity visualization

Overlay arrows, heatmaps, contours, and displacement-color maps on original frames for fast interpretation and presentation.

Region control

Set calculation regions and exclusion masks so the analysis focuses on the flow area that matters.

Research exports

Save processed frames, annotated videos, CSV files, and Excel workbooks for publication figures or downstream analysis.

Workflow

From raw frames to exportable results.

1Import particle image pairs, image sequences, or video.
2Set time interval, scale, interrogation window, overlap, and filtering.
3Run PIV processing and inspect velocity vectors across frames.
4Export visual overlays, videos, and numeric velocity data.

Raw particle experiment frame before PIV analysis — Raw particle image frame used as input for velocity-field calculation.

Example output

Visualize direction, magnitude, and confidence.

Heatmap

Use color intensity to identify high-speed regions and gradients.

Vector field

Inspect flow direction and relative magnitude with adjustable arrow density.

Data export

Export x, y, u, v, magnitude, and correlation data for reproducible analysis.

Measured example

From particle frames to a complete flow-field view.

A seeded channel image pair processed in PIV Analyzer. The same measurement is shown as vectors, magnitude, contours, and direction so the result can be inspected from several complementary views.

First raw particle image from a seeded channel experiment — **Frame A**First image in the measured pair

Second raw particle image from a seeded channel experiment — **Frame B**Particle motion after the time interval

Calculated velocity vectors over the channel image — **Velocity vectors**Direction and relative magnitude

Velocity magnitude heatmap from the channel experiment — **Magnitude heatmap**High- and low-speed regions

Velocity magnitude contour lines over the channel image — **Velocity contours**Spatial gradients and level boundaries

Color-coded displacement direction map from the channel experiment — **Direction map**Color-coded displacement orientation

Use cases

Designed for experimental flow analysis.

Microfluidics Water-channel experiments Particle tracking studies Teaching labs Engineering validation Research figures

Free beta

Download PIV Analyzer for Windows.

The first public version is planned as a free beta while feedback, tutorials, and validation examples are collected. A Pro license can be added later for commercial support and advanced export workflows.

Join Free Beta Ask a Question

Early access

Join the free beta.

Receive the Windows download, release updates, and occasional requests for feedback. No payment details are required.

Contact

Interested in testing PIV Analyzer?

For validation datasets, academic collaboration, or commercial licensing, contact the developer with your experiment type and target workflow.

lvlinlin7025@gmail.com