Artifacts

Opens Blender .blend files from a URL or GitHub link and shows the meshes, curves and text with orbit controls.

Saves pasted clipboard content in several formats (text, HTML, RTF, images) so you can keep or download it.

Shrinks animated GIFs with gifsicle running in WebAssembly, from lossless to aggressive presets.

Renders DOT graph source as SVG as you type and stores the graph in the URL fragment for sharing.

Generates several resized and recompressed versions of one image so you can pick the smallest file that still looks fine.

Boots a small Linux image through the v86 x86 emulator so you can run shell commands in a tab.

Renders Mermaid flowcharts and sequence diagrams as Unicode box-drawing text using a WebAssembly library.

Renders Mermaid flowchart and sequence diagrams as terminal-style Unicode box art in the browser.

Runs MicroPython in WebAssembly and stores the code in the URL so snippets are easy to share.

Executes ES5-style JavaScript in a small WebAssembly engine and keeps the code in the page address.

A Minesweeper clone with three difficulty levels, flagging, a timer and long-press support on phones.

Five guided NumPy exercises plus a free playground, all running Python in the page through Pyodide.

Runs pandas, numpy and matplotlib in the browser via Pyodide to draw a bar chart.

Encrypts a message with a passphrase using browser crypto and produces a link that only decrypts with that passphrase.

Removes comments from Python code using the real tokenizer on Pyodide, leaving strings and docstrings intact.

An interactive Python prompt running on Pyodide with several runtime versions and command history.

Runs JavaScript inside a QuickJS WebAssembly sandbox with a synchronous fetch helper and example snippets.

Runs the Redis AR* array commands against an in-memory instance compiled to WebAssembly.

Counts source lines by language from pasted code, a GitHub repo or a ZIP and estimates effort with COCOMO.

Parses SQLite SELECT queries into an abstract syntax tree shown as JSON and Python.

Shows the VDBE bytecode SQLite generates for a query, using EXPLAIN.

Runs SQLite in WebAssembly and shows query results in about twenty formats including boxes, CSV, JSON and Markdown.

Runs a query in browser-based Python SQLite and annotates EXPLAIN and query plan output in plain English.

Formats, parses, validates and tokenizes SQLite SQL in the browser using a compiled parser.