marimo gallery

A collection of marimo notebooks showcasing algorithms, research paper implementations, interactive visualizations, dashboards, widgets, and more. Interactively explore these notebooks at our online gallery.

Running notebooks online. The easiest way to run the notebooks is with molab; just click the "Open in molab" links below.

Running notebooks locally. Install uv, download the notebook you want to run, then run

uvx marimo edit --sandbox <notebook>

Algorithms

Notebook	Description
Embedding Visualiser	Select points in embedded space to explore clusters.
Neural networks	Training a tiny neural network with micrograd
Evolutionary Strategies	Interactive exploration of evolutionary optimization.
Smoothed Gradient Descent	Visualize gradient descent with momentum and smoothing.
Loss Landscape Visualization	Visualize neural network loss landscapes using local-plane blending.
Convolution Explorer	Pick a kernel and see convolution applied to images in real time.
Federated Learning	Simulate federated learning.
Sklearn Classification	Bootstrap models with preprocessing and cross-validation.
FastAPI + GliNER	Zero-shot entity extraction as webapp, API, or CLI.
Chemical Space Explorer	Explore chemical space with RDKit fingerprints, t-SNE, and HDBSCAN clustering.
Bayesian Regression	Interactive sequential Bayesian linear regression demo.

Research papers

Notebook	Description
GDPO vs GRPO	A comparison of GDPO and GRPO methods.
LLM Unlearning	Explore LLM unlearning by overfitting unwanted data.

Analysis

Notebook	Description
Lanchester's Law	Interactive simulation of Lanchester's Laws of combat.
Suguru	Interactive Suguru puzzle solver and generator.
ARC-Easy LLM	Prompt repetition experiment on ARC-Easy multiple-choice questions.
Simpson's Paradox	Bayesian analysis of Simpson's paradox with PyMC.

3D

Notebook	Description
Bookshelf	Make a bookshelf, using sliders, with marimo-cad.
Trimesh Demo	Grab 2D slices from 3D files with trimesh.
Vase	Make a vase for 3D printing with marimo-cad.

Dashboard

Notebook	Description
Lego Price Explorer	Explore Lego price-per-piece patterns.
Movies Dashboard	Explore movie data with a dashboard.
Portfolio Calculator	An interactive tool for portfolio analysis.
World of Warcraft Bot Detection	Detect bots in WoW using session length analysis.
Altair Reactive Plots	Altair charts with brush selection and reactive filtering.
Matplotlib Selection	Select data points on a matplotlib plot with mo.ui.matplotlib.

SQL

Notebook	Description
Connect to SQLite	Use marimo's SQL cells to read from and write to SQLite databases.
MotherDuck	Explore using MotherDuck inside marimo.
SQL Interpolation	Interactive SQL with slider-driven query interpolation.

External

Notebook	Description
Neo4j Widget	Interactive graph explorer for Neo4j databases.
Wandb Chart	Live Weights & Biases chart integration.
When Europeans Fly Nest	Dataviz makeover exploring when young Europeans leave home.
Mandelbrot	Cython vs Python Mandelbrot set benchmark.
Manim Slides	Trigonometric identity proof animated with manim-slides.
dltHub + Hugging Face	Curate Hugging Face datasets with dltHub pipelines and data quality checks.

Geo

Notebook	Description
Airport Display	Display all airports using OpenStreetMap and OpenLayers.
Click and Zoom	Click and zoom maps to get Python coordinates.
Drag and Drop	Drop GPX, GeoJSON, KML, or TopoJSON onto maps.
Earthquakes	Highlight all known earthquakes on the OpenLayers map.

Math

Notebook	Description
Spectral Decomposition	Interactively explore the spectral matrix decomposition
Signal Decomposition	Decompose complex signals into simpler interpretable components.
100 Prisoners Puzzle	Simulate the famous 100 prisoners probability puzzle.
Attractor	Interactive strange attractor visualization with scatter plots.
Matrix Decomposition	An interactive exploration of matrix decomposition techniques.
Seam Carving	Content-aware image resizing using dynamic programming.
Matrix	Interactive matrix editor and PCA demo using mo.ui.matrix.
Cellular Automaton Art	Voter-model cellular automaton that self-organises into paint-splatter art.
Bak-Sneppen Model	Interactive 3D visualization of the Bak-Sneppen self-organized criticality model.
Vector Puck	Explore vector arithmetic with pucks over matplotlib.
Thermodynamic Linear Algebra	Estimate a matrix inverse via overdamped Langevin dynamics.
Interactive ODE Solver	Drag to set initial conditions and explore solutions of an ODE with a direction field.
RPSLS Math	Explore balanced tournament graphs for Rock-Paper-Scissors variants.
ChartPuck Circle	Explore how complex functions transform circles interactively.
Droste Zoom	Simulate the Droste zoom effect with log-polar transforms.
Graph Laplacian	Spectral clustering with graph Laplacian eigenvectors.
Spectral Graph Drawing	Draw graphs using Laplacian eigenvectors as node coordinates.
Graph Signal Denoising	Denoise graph signals by projecting onto Laplacian eigenvectors.
Low-Rank Approximation	Interactive image compression with low-rank SVD.

Custom UI elements with Anywidget

Notebook	Description
CellTour	Create guided tours through notebook cells.
ChartPuck	Interactive chart editor with draggable control points.
ColorPicker	An interactive color selection widget.
CopyToClipboard	A utility widget for copying content to the clipboard.
DriverTour	Create guided page tours with the DriverTour widget.
EdgeDraw	Draw edges between nodes for graph creation.
EnvConfig	Configure environment variables interactively.
Fashion MNIST Parallel Coords	Explore Fashion MNIST with PCA and interactive parallel coordinates.
GamepadWidget	Capture input from gaming controllers.
Greedy Search Pucks	Greedy sampled search visualization with draggable pucks.
HTMLRefreshWidget	Render dynamic HTML content that auto-refreshes.
KeystrokeWidget	Capture keyboard input and key combinations.
Paint	A drawing and painting canvas widget for freeform input.
PulsarChart	Joy Division-style pulsar chart visualization.
ShortcutWidget	Keyboard shortcut capture widget.
Slider2D	A 2D slider control for selecting x/y coordinates interactively.
SortableList	A draggable list for reordering items interactively.
SpeechToText	Convert voice to text using browser speech recognition.
Tangle	Interactive number manipulation with draggable values in text.
TextCompare	Side-by-side text comparison with highlighted matching passages.
ThreeWidget	3D visualization widget using Three.js.
Drawdata Scatter	Draw scatter data and visualize with Altair histograms.
WebcamCapture	Capture images from the webcam.