editor

Markdown WYSIWYG built as a transparent textarea layered over rendered output, avoiding contenteditable and heavy editor frameworks entirely.

Vector animation editor focused on SVG and Lottie output, exporting animated icons and logos to SVG, Lottie, GIF, MP4 and WebM.

Visual theme editor for shadcn/ui that edits colour, radius, typography and shadow tokens live.

Visual sequencer and keyframe editor that animates any JS object, including three.js scenes, with a Studio UI overlay.

Browser editor for viewing, cleaning and publishing 3D Gaussian splat captures.

Itty-bitty 2D engine with built-in code, sprite, map and font editors, programmable in Lua and exportable to HTML5.

Browser SVG editor built for speed with no account or install, aimed at precise path and shape editing.

Rich-text editor framework for React built on Slate, with plugin packages and a shadcn component registry.

Visual editor for the MapLibre style specification with live preview, running fully in the browser.

Rich text editor for Compose and Compose Multiplatform with HTML and Markdown import and export.

Local-first open-source App Store screenshot editor built with React and TypeScript, running entirely in the browser.

Browser editor for authoring Phaser 3 particle emitter configs visually and exporting the JSON into your game.

Compact WYSIWYG editor component styled with shadcn/ui, wrapping Tiptap with a toolbar and bubble menu.

Theme editor and extended component gallery for shadcn/ui, with visual token editing and exportable theme files.

Self-hosted Observable notebook editor supporting file attachments, secrets and custom standard libraries.

Free open-source visual novel editor that runs in the browser and exports standalone HTML visual novels.

Language server, CLI and editor extensions giving autocomplete, hover docs and validation for design tokens inside your editor.

Pixel art editor with frame animation, layers and a built-in scripting language for automating repetitive game-art transforms.

Renderer and modelling toolkit underneath bpmn.io, providing canvas, palette, connection routing and undo for custom editors.

Notion-like editor purpose-built for composing responsive HTML emails, with blocks and variable support.

Browser toolkit for creating, stacking and animating layered GPU shaders, then exporting the composed result as code.

Web app for editing Graphviz DOT graphs visually and textually at the same time, with live bidirectional sync.

Configurable particle system for PixiJS with an accompanying visual editor for authoring emitter presets.

Browser playground for shadcn/ui components with a live editor for previewing and tweaking variants.

Visual editor for previewing every CSS position-area value against an anchor, exporting the matching declaration.

Icon aggregator with cross-set search, live color and stroke editing, and export to SVG, PNG or component code.

Browser SVG editor built around a plugin architecture, so editing tools and panels are added as independent modules.

Node-based visual editor for composing SVG filter graphs, exporting the resulting filter markup.

Notion-style WYSIWYG editor built on Tiptap with AI autocompletion, slash commands and bubble menus.

Browser vector workspace that reshapes icons from Tabler, Lucide, Phosphor, Iconoir and Heroicons into custom app icons, exporting SVG or PNG.

Open-source macOS Markdown editor built around appearance profiles — type, colour, glass, backgrounds — plus optional Vim keys and local spell checks.

Embeddable WYSIWYG editor for Mermaid diagrams — drag nodes, rename labels and change shapes, with Monaco and CodeMirror bindings plus a headless mode.

Online shader composer that visually combines and remixes existing GLSL shaders and exports them to Three.js.

Minimal online fragment shader editor and public gallery where every submitted shader can be forked and edited.

Lexical-based rich text editor themed with shadcn/ui components and installable via the shadcn CLI.

Browser-based timeline editor for building CSS keyframe animations visually and exporting the generated stylesheet.

Adds a click-to-source overlay so option-clicking an element in the browser opens the exact component line in your editor.

Node-level editor for raw SVG path data with live command list, transforms, arc visualisation and path optimisation.

Browser-based design token editor and converter that previews colour, type and spacing while exporting standard token formats.

Painting program for textural, expressive pixel art with an eight-colour constraint, running on Windows, Linux and the Nintendo DS.

Open source vector graphics editor built on a node-based procedural graph, supporting non-destructive editing and animation in the browser.

AntV diagram library for building DAG editors, ER diagrams and flowcharts with built-in interaction primitives.